#Android P dev preview
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Microsoft Visual Studio Java
Visual Studio dev tools & services make app development easy for any platform & language. Try our Mac & Windows code editor, IDE, or Azure DevOps for free. Xamarin.Android for Visual Studio requires Java Development Kit. Please install it or set Java Development Kit path on Tools-Options-Xamarin-Android Settings menu. For example, you see an error message dialog box that's similar to the following screenshot.
Using Microsoft Visual Studio Javascript Tutorial
Microsoft Visual Studio Java Support
Microsoft Visual Studio 2019 Java
Microsoft Visual Studio Java Project
This tutorial shows you how to write and run Hello World program in Java with Visual Studio Code. It also covers a few advanced features, which you can explore by reading other documents in this section.
Longtime readers of Visual Studio Magazine may remember the company's own Microsoft Java Virtual Machine (JVM) technology, which it discontinued back in 2009 shortly after Oracle agreed to buy Sun Microsystems. The latest update to Microsoft's Visual Studio Code editor brings a range of improvements for JavaScript, C# and Java developers. The June release of the code editor, one of the most popular in the.

For an overview of the features available for Java in VS Code, see Java Language Overview
If you run into any issues when following this tutorial, you can contact us by clicking the Report an issue button below.
Setting up VS Code for Java development
Coding Pack for Java
To help you set up quickly, you can install the Coding Pack for Java, which includes VS Code, the Java Development Kit (JDK), and essential Java extensions. The Coding Pack can be used as a clean installation, or to update or repair an existing development environment.
Install the Coding Pack for Java - macOS
Note: The Coding Pack for Java is only available for Windows and macOS. For other operating systems, you will need to manually install a JDK, VS Code, and Java extensions.
Installing extensions
If you are an existing VS Code user, you can also add Java support by installing Java Extension Pack, which includes these extensions:
The Java Extension Pack provides a Quick Start guide and tips for code editing and debugging. It also has a FAQ that answers some frequently asked questions. Use the command Java: Getting Started from the Command Palette (⇧⌘P (Windows, Linux Ctrl+Shift+P)) to launch the guide.
You can also install extensions separately. The Extension Guide is provided to help you. You can launch the guide with the Java: Extension Guide command.
For this tutorial, the only required extensions are:
Settings for the JDK
Supported Java versions
The supported version for running the VS Code for Java extension and the supported version for your projects are two separate runtimes. To run VS Code for Java, Java SE 11 or above version is required; for projects, VS Code for Java supports projects with version 1.5 or above. For more details, refer to Configure JDK.
Using Java runtime configuration wizard
To help you configure correctly, we provide a runtime configuration wizard. You can launch the wizard by opening the Command Palette (⇧⌘P (Windows, Linux Ctrl+Shift+P)) and typing the command Java: Configure Java Runtime, which will display the configuration user interface below.

Note: To configure multiple JDKs, see Configure JDK. To enable Java preview features, see How can I use VS Code with new Java versions
Using Microsoft Visual Studio Javascript Tutorial
Using VS Code settings
Alternatively, you can configure JDK settings using the VS Code Settings editor. A common way to do this is setting the value of the JAVA_HOME system environment variable to the install location of the JDK, for example, C:Program FilesJavajdk-13.0.2. Or if you want to configure only VS Code to use the JDK, use the java.home setting in VS Code's User or Workspace settings.
Installing a Java Development Kit (JDK)
When you need install a JDK, we recommend you to consider installing from one of these sources:
Creating a source code file
Microsoft Visual Studio Java Support
Create a folder for your Java program and open the folder with VS Code. Then in VS Code, create a new file and save it with the name Hello.java. When you open that file, the Java Language Server automatically starts loading, and you should see a loading icon on the right side of the Status Bar. After it finishes loading, you will see a thumbs-up icon.
Note: If you open a Java file in VS Code without opening its folder, the Java Language Server might not work properly.
VS Code will also try to figure out the correct package for the new type and fill the new file from a template. See Create new file.
You can also create a Java project using the Java: Create Java Project command. Bring up the Command Palette (⇧⌘P (Windows, Linux Ctrl+Shift+P)) and then type java to search for this command. After selecting the command, you will be prompted for the location and name of the project. You can also choose your build tool from this command.
Visual Studio Code also supports more complex Java projects, see Project Management.
Editing source code
You can use code snippets to scaffold your classes and methods. VS Code also provides IntelliSense for code completion, and various refactor methods.
Microsoft Visual Studio 2019 Java
To learn more about editing Java, see Java Editing.
Microsoft Visual Studio Java Project

Running and debugging your program
To run and debug Java code, set a breakpoint, then either press F5 on your keyboard or use the Run > Start Debugging menu item. You can also use the Run|Debug CodeLens options in the editor. After the code compiles, you can see all your variables and threads in the Run view.
The debugger also supports advanced features such as Hot Code replacement and conditional breakpoints.
For more information, see Java Debugging.
More features
The editor also has much more capability for your Java workload.
Editing Java explains how to navigate and edit Java in more details
Debugging illustrates all the key features of the Java Debugger
Testing provides comprehensive support for JUnit and TestNG framework
Java Project Management shows you how to use a project view and work with Maven
Spring Boot and Tomcat and Jetty demonstrate great framework support
Java Web Apps shows how to work with Java Web App in VS Code
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Intro to React and Redux
TF is this?
I used the boilerplate project built by Cory House (Twitter: @housecor), SlingShot to build my company's transition into React. This was chosen because of his excellent PluralSight videos, and I felt that the patterns used were generally community accepted and thought out. Any reference to "this project" could be considered standard defined from Cory House, or just my whim.
Background (skip this if you just want to learn some react/redux)
I was working in a silo for two years, building out the front-end for a site that runs on .NET and MVC architecture. There is nothing wrong with server-side rendered pages. But our front-end was thrown together with little thought to re-usable peices. For example, there are at least 5 layout templates for a website that you log into and view a few pages (think accessing your bank account).
Our end-users have really bad internet connections. With a slow server-side rendered website, most used the native apps. It was most apparent when we had an extremely high-usage day, which brought the native mvc site to a crawl, but native apps were fine calling our new APIs. Had the site been fully converted to the React framework built for new features (as opposed to redoing the entire site in high priority), it would have likely persevered through the high traffic.
That's all well and good, 20-20 past vision stuff. But it still points to why I wanted to push for a SPA driven by React and Redux. The whole intention of the site is to act like the native apps, so let's bring it up to speed!
All that said, I decided to leave for several reasons, but I wanted to make sure any of the devs, including all .NET devs, native android, and native iOS devs, would at least have something to refer to besides just the general "here's how he built this so let's use that pattern" learning. I hope it's helpful for them, and I hope this reaches anyone else interested in React and Redux. There are a shit-ton of tutorials out there, I'm hoping I can make a TL;DR version of Cory's awesome 6+ hours of lessons.
Component Structure
Components can be written as a function or by extending the React.Component class. This projects uses the Container/Dumb Component pattern where "smart" components are considered containers, and dumb components (under /components) take props and know how to display them.
Props
Props are the data passed into a component. They can be any javascript value type, which allows for display data or functions that need to be executed within the component. props are the first param passed to a functional component. Access props from a class component by using this.props.
PropTypes
Every component should define its prop's types. This enforces type checking for the linter and testing, as well as will be generated in the npm run gendocs script. You will also see console warnings if an unexpected type is used in development mode. The standard pattern is to declare the component as a const or class, and before exporting, assign the propTypes object:
const MyDumbComponent = (props) => { return (<h1>{props.header}</h1>); }; MyDumbComponent.propTypes = { classes: PropTypes.string, header: PropTypes.string.isRequired, }; export default MyDumbComponent
When extending the React.Component class, you may see propTypes as a static property in tutorials. This is fine, however the pattern in this project still maintains them outside of the class declaration, mostly for consistency.
If your component can work without requiring access to React's lifecycle methods and manage state, it is better to create it as a function so as to not add the ES6 class overhead. However, do not make that prevent you from using the class structure if needed.
The most typical needs for React's lifecycle access are setting up/managing component state and retrieving data before a render. Below is an example of a component that handles state management. Note that this is referring to the "component state." Meaning this is just pure React at this point, without introducing Redux app state management.
Here's a simple incrementer/decrementer component:
import React from 'react'; import PropTypes from 'prop-types' class Counter extends React.Component { // Initialization: constructor(props) { super(props); // Define initial state: this.state = { amount: 0, }; // Bind class functions to `this` to be accessed within class methods: this.increment = this.increment.bind(this); this.decrement = this.decrement.bind(this); } /** Increase the amount */ increment() { this.setState({ amount: this.state.amount + 1 }); } /** Decrease the amount */ decrement() { this.setState({ amount: this.state.amount - 1 }); } /** Render the component */ render() { const {amount} = this.state; return ( <div> <label>Amount: {amount}</label> <br><button>Increase</button> <button>Decrease</button> </div> ) } }
So what is happening here? The constructor is run at the initial load of the component. super(props) is simply passing props to the React.Component abstract class. We want to define our intentional state for this component. In this case, we just want to keep track of what the amount to display is. The binding is a side-effect of ES6 classes. There are several ways to handle dealing with this in a class, specifically with render(), but this is the most resource efficient way, it just adds a few extra lines.
increment() and decrement() are class methods that are simply updating the component state. You cannot mutate this.state directly, which is where this.setState() comes in. It is a React function that accepts an object of what the new state will be, and when called, will trigger a component re-render. So anytime the state is updated, render() is called and the state values will be updated.
render() is the override for React.Component that must return jsx. In this case the component is providing the amount display and the buttons to modify that amount. Note that jsx requires a single opening and closing tag surrounding all others.
return ( <div>section 1</div> <div>section 2</div> )
This is invalid. If you do not want to introduce a wrapping html element, you can use the `` tag to prevent additional html written to the DOM.
return ( <div>Section 1</div> <div>Section 2</div> )
Redux Preview
This section explains how a component can trigger data retrieval and access the Redux store. It may be worth checking out the vocab section of Redux first.
Retrieving data for a component can be done by overriding componentWillMount() and firing off your required actions. Most commonly something like:
async componentWillMount() { this.props.DisplayLoading(); await this.props.GetTransactions(); this.props.FinishLoading(); }
This will cause the spinner to display, dispatch the action to call the api to retrieve transactions, then hide the spinner. await is used here because we know GetTransactions is asynchronously calling the API.
Accessing The Redux Store
Redux is built in a way that it can be used without React, so in order for a component to access the store, we use the react-redux package, which provides an HoC (Higher-order Component) function called "connect".
This essentially wraps your component and returns a new component that has store access. It takes up to 4 params, but typically you will only use the first two: mapStateToProps and mapDispatchToProps.
mapStateToProps is a function that is supplied with the state (store) object. You must return and object from this function, providing any props that require data from the state. For example:
class TransactionList extends React.Component { async componentWillMount() { this.props.DisplayLoading(); await this.props.GetTransactions(); this.props.FinishLoading(); } render() { const {isLoading, transactions} = this.props; if (isLoading) { return (); } const transactionItems = transactions.map(t => { return ({t.name}); }; return ( <ul></ul> ); } } function mapStateToProps(state) { return { transactions: state.transactions, isLoading: state.spinners > 0, } } export default connect(mapStateToProps, {})(TransactionList);
A couple things to note in this example. - We are using destructuring to declare isLoading and transactions. If you are unfamiliar, it was introduced in ES6 (https://hacks.mozilla.org/2015/05/es6-in-depth-destructuring/) - In render(), a list of `` tags are built by mapping an array of objects and returning jsx. This is a useful feature as you can build jsx sections piecemeal. - mapStateToProps is declared outside of the component class. This is because it isn't tied to the component itself. - mapStateToProps is creating its own prop, isLoading by computing off of the redux state, where transactions is just plucked directly. This is fine, the point is your component does not have to necessarily follow the redux state structure. - Another note about this, is the concept of selectors. This concept houses how the data is returned from state, but a more advanced topic worth diving into when you're more comfortable. - The second param for connect is an empty object, this is addressed in the next section - TransactionList is wrapped in parenthesis after connect is executed. This is shorthand for:
const connectedStateAndProps = connect(mapStateToProps, {}); export default connectedStateAndProps(TransactionList);
mapDispatchToProps
This is used to provide dispatch. Dispatch is simply a function that takes an object with an action type and any additional data (must define a type as a string). Reducers are listening for dispatch actions. They are simply a giant switch statement that intercepts the dispatch type and determines if/how to update the redux store. More information on dispatch Usage of this within components can vary, and this project abstracts a lot of it out into defining actions (/actions). The more manual way to set it up in your component is as follows:
class TransactionList extends React.Component { async componentWillMount() { this.props.DisplayLoading(); await this.props.GetTransactions(); this.props.FinishLoading(); } render() { const {isLoading, transactions} = this.props; if (isLoading) { return (); } const transactionItems = transactions.map(t => { // Updated from previous example return ( this.props.GetTransactionById(t.id)}> {t.name} ); }; return ( <ul></ul> ); } } // Added from previous example: function mapDispatchToProps(dispatch) { return { GetTransactions: () => dispatch({ type: 'TRANSACTIONS.GET_TRANSACTIONS' }), GetTransactionById: (id) => { dispatch({ type: 'TRANSACTIONS.GET_BY_ID', id: id, }); }, DisplayLoading: () => dispatch({ type: 'COMMON.DISPLAY_LOADING' }), FinishLoading: () => dispatch({ type: 'COMMON.HIDE_LOADING' }), } } function mapStateToProps(state) { return { transactions: state.transactions, isLoading: state.spinners > 0, } } export default connect(mapStateToProps, {})(TransactionList);
As you can see, setting all your action dispatchers up within the component can add extra bloat. To alleviate that, the second param for connect can accept an object of actions. This is the pattern used in the project, so you simply import your action and define it (Note: will explain actions in detail later):
// file: ./actions/transactions.js export function GetTransactions() { return async dispatch => { try { let list = await TransactionsApi.GetTransactions(); dispatch({ type: TRANSACTIONS.GET_TRANSACTIONS_SUCCESS, transactions: list }); } catch (error) { dispatch({ type: TRANSACTIONS.GET_TRANSACTIONS_FAILURE, message: error.message || 'Unfortunately there was a problem retrieving your transactions. Please try again' }); } } } // file: ./containers/transactions/TransactionList.js import {GetTransactions} from '../../actions/transactions'; //... same class example from above export default connect(mapStateToProps, {GetTransactions})(TransactionList);
The benefits from doing it this way are better readability, abstraction of function, and easier to unit test your actions.
Redux
Redux is a single source for your entire application state. It's independent of React, can only be modified by dispatching actions (immutable), and allows for time travel because of this. React interacts with the Redux store with react-redux, which provides the ability to utilize the application state in components, as well as take actions to change state.
Redux Terms
Store: The actual data store. This is just a javascript object, so it can hold any values necessary. Redux itself is meant to maintain all app state in this single store, but allows for it to be composable using combineReducers.`
Action: An object to be received by reducers. It must contain a type property with an assigned string. These types are managed in /consants/actionTypes.js. Any additional data can be provided in the action.
{ type: "USER.LOGGED_IN", name: 'derp' }
Action Creator: A function that returns an action
function userLoggedIn() { return { type: 'USER.LOGGED_IN', username: 'derp' }; }
Reducer: A function that takes state as the first param and action as the second. State is the current state of the redux store. action is the action object containing type and data.
function userReducer(state, action) { switch (action.type) { case 'USER.LOGGED_IN': //don't mutate the state return {...state, username: action.username}; default: return state; } }
Dispatch: This function is the glue between actions and reducers. You execute dispatch() when you want to bubble up an action to be intercepted by reducers. It is provided by the Redux store, but accessed via connect (see mapDispatchToProps). This is the only way to trigger a state change.
function userLoggedIn(dispatch) { dispatch({ type: 'USER.LOGGED_IN', username: 'derp' }); }
Thunk: A thunk is a function that is returned by another function. redux-thunk is middleware between actions and reducers. If the action is a function, it executes it, thus allowing for asynchronous calls before the reducer.
function userLogin() { return async (dispatch) => { let user = await UserApi.Login(); dispatch({ type: 'USER.LOGGED_IN', username: user.username, }); } }
combineReducer(): This function allows for composing with multiple reducers. This project does this in /reducers/index.js. It simply imports all other reducers and composes them in the structure of the desired Redux store. This can be nested, as you can see in /reducers/Support/index.js, which simply exports the support related reducers:
import { combineReducers } from 'redux'; import categories from './categories'; import conversations from './conversations'; import errors from './errors'; import phoneNumbers from './phoneNumbers'; export default combineReducers({ categories, conversations, phoneNumbers, errors, });
This results in the Redux store shape as:
{ support: { categories: [], conversations: [], phoneNumbers: [], errors: null, } }
The idea is that you can write small and specific reducers that only care about their slice of the state. As this is the case, the returned new state from a reducer function, for instance in /reducers/Support/phoneNumbers:
import {SUPPORT} from '../../constants/actionTypes'; import initialState from '../initialState'; export default function phoneNumbersReducer(state = initialState.support.phoneNumbers, action) { switch(action.type) { case SUPPORT.GET_INDEX_SUCCESS: { if (action.index.phoneNumbers) { return action.index.phoneNumbers.slice(); } return state; } default: return state; } }
The state param for this function is only the state.support.phoneNumbers slice of the Redux store.
It's best to define what your idea of the initial app state is, so reducers can define their slice of the default state. This project defines that in /reducers/initialState.
So when adding newly nested pieces to the store, be sure to import them through to the main /reducers/index.js module. Also note that when using combineReducers, you are defining the name of that slice of state, so by changing phoneNumbers like so below:
import phoneNumbers from './phoneNumbers'; export default combineReducers({ phones: phoneNumbers, });
Accessing the final store will result in state.support.phones instead of state.support.phoneNumbers
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https://ift.tt/2tQidpe We're on high alert for the Android Q dev preview this week! Android P came out March 7. via /r/Android
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026: Riding a Big Wave
引き続き@hakさんをゲストに迎えて、Google I/O、Kotlinサポート、Android O、Alpha Goなどについて話しました。
podcast feedを購読するか、DLしてお楽しみ下さい。
Show Notes:
Effective TensorFlow for Non-Experts (Google I/O '17) - YouTube
Using Project Kotlin for Android - Google Docs
Proposed schedule change for JDK 9
Notification Badges | Android Developers
Android Developers Blog: Here comes Treble: A modular base for Android
バックグラウンド位置情報の制限 | Android Developers
Background Check and Other Insights into the Android Operating System Framework (Google I/O '17) - YouTube
Firebase Performance Monitoring | Firebase
Android Vitals | Android Developers
Inspect Network Traffic with Network Profiler | Android Studio
Speeding Up Your Android Gradle Builds (Google I/O '17) - YouTube
最強囲碁AI「AlphaGo」全勝 世界最強棋士も敵わず - ITmedia NEWS
Systolic array - Wikipedia
NVIDIA Volta AI Architecture | NVIDIA
Contact:
@dexfmpodcast
@hydrakecat
@hak
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Essential updates Android P Dev Preview to new Beta https://t.co/lclzxNfVgE by @Haloruler64
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How Mirror works: first look at developing for Mirror
We're getting closer to ship the first dev kits of Mirror, the world's first video beacon, and we want to take this opportunity to start introducing you to the Mirror technology.
In this post, we'll give you a sneak-peek of how Mirror works and the philosophy behind some of that. Most importantly though, you'll learn what all of this means for building first Mirror-powered experiences!
Some of the things we mention in this post are still work in progress and might change—but it should still give you a general idea of where it's all headed!
Sourcing the context for the smart screen
Our mission for Estimote Mirror is to turn screens into smart "assistants", showing personalized content based on who's nearby, where they are, what objects they're interacting with, etc. To make this possible, something needs to feed Mirror with that data.
This is why, much like with regular beacons, the smartphone and the mobile app are still at the heart of it all.
Your airline app knows where you're flying to. Your shopping list app knows what products you're looking for. Your running app knows whether you're a marathoner or sprinter.
This makes it possible to
highlight your flight info at the airport screen, direct you to the right aisle from the supermarket's screen, or suggest the right shoes for you right there at a screen in a sportswear store.
You don't have to pull the smartphone out of your pocket, but it's still silently doing the job of making sure you're shown just the right information.
This is why, when your Mirror dev kit arrives, it'll be coming with iOS and Android SDKs.
Side note: we also have other sources of context in mind for Mirror. If you've seen our Mirror video, you know that it can also interact with Estimote Stickers. We're REALLY excited about this, and we'll be covering that in a separate post in the future.
Mobile Mirror SDK, your "remote" for Mirror
The mobile SDKs for Mirror are about more than just feeding Mirror with user data. In fact, they're in full control of what to show on Mirror:
When the user comes near the screen, the mobile Mirror SDK will establish a Bluetooth link between the smartphone and the Mirror, and tell it to display the view however you programmed it (uploading the assets if necessary).
There's no need to upload any "Mirror apps" to the Mirror itself—your mobile app is the ultimate remote for Mirror.
A sneak-peek at one of our Mirror demos!
This makes it easy to get started: just drop some code into your mobile app, the way you always do—Swift, Java, Obj-C, Kotlin, your call. Iterating? Submit a new version of your app to the app store. The next time the user comes in range of Mirror, they'll immediately see the updated experience. You could have a thousand Mirrors deployed in locations with no WiFi, and yes, all it takes is distributing an updated version of your mobile app—a problem already solved by iOS and Android.
Built-in views, custom views
At the heart of developing for Mirror are the Mirror views (e.g., the TextView shown above), so let's also talk about that for a moment.
Mirror uses a subset of HTML5 and CSS3 to render its UI, and the Mirror views are ready-made pieces of HTML that are stored on the Mirror's flash drive. The mobile SDK can then invoke any of these views when in range of Mirror, filling the blanks in.
Much like iOS or Android's collection of built-in components (UITableView, ListView, etc.), we'll be baking our own collection into the Mirror OS itself: text view, table view, image view, etc. We're spending a lot of time fine-tuning them to work great on the big screen, so that you don't have to. However, we are also making sure these views are extremely customizable. Colors, backgrounds, fonts, image on the left or on the right, these things are up to you.
Finally, you can always build and upload your own, hand-crafted, custom views to Mirror. Write some HTML/CSS/JS, test in a regular web browser, add a few placeholders to be filled in later by the mobile app, deploy to Mirror. Front-end web developers should feel at home!
Thoughts?
We hope you enjoyed this preview into what developing for Mirror looks like—we certainly are excited to be sharing it with you. Let us know what you think on our forums, or by dropping us a note to [email protected]. We're eager to hear your feedback!
Piotr Krawiec, Head of Developer Experience at Estimote
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Android P Overview: Everything you need to know right now
More Android P articles from us! –
Android Developer APIs –
Google has given us a present with the release of the first developer preview of Android P! We go hands on to check out all the new features, UI changes, and under-the-hood tweaks. Won’t you join… source
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#android#Android OS#Android P dev previe...#Android P developer preview#Android P hands on#Android P overview#Android P review#android p...#AndroidAuthority
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2018-03-29 06 ANDROID now
ANDROID
Android Advices
Sony Xperia XZ1 Compact Smartphone is now available for a cutdown price of $380
Moto G6 Smartphone gets certified with 5.7” Display & Dual rear cameras
Honor View 10 Smartphone now available for $499 in the US
Oppo A1 Smartphone Announced in China with 5.7” Display & 4GB RAM
Nokia 1 and Nokia 7 Plus starts going for pre-order via Amazon UK
Android Authority
Google Home Mini + Bluetooth speakers = multi-room audio
Three Messenger users suing Facebook over alleged privacy violations
LG V30 update tracker (Update: AT&T rolling out Oreo)
Wear OS gets an Android P developer preview
Foxconn buys Belkin, adding routers and smart home products to its portfolio
Android Central
You can now pair your Google Home to other Bluetooth speakers
Three people are suing Facebook for collecting call/text logs on Android
Today's best deals you won't want to miss
How to use Google Pay on your Wear OS smartwatch
Google releases Android P developer preview for Wear OS
Android Developers
What’s new in Android Studio 3.1
Introduction to Wear OS Complication Data Provider Development
Introduction to Wear OS Watch Face Development
Introduction to Wear OS Application Development
Introducing Google Play Instant
Android Guys
Seven cat games every kitty lover needs to try out
Wear OS gets first Android P developer preview
Huawei’s P20 and P20 Pro offer up unique Leica triple-camera system
Complete 2018 Coding Bundle: Learn on your own time for about $5 a course
Celebrate Easter with Koogeek and win an Apple HomePod (Promoted)
Android Headlines
More Autonomous Driving Investments May Follow Uber Crash
Samsung Galaxy Note 9 Sighted With 6GB RAM, Android 8.1 Oreo
Google Offering Limited $2 Play Store Credits For Games
Time Warner Execs Increasingly Skeptical Of AT&T Deal: Report
Google Releases Wear OS Dev Preview To The Public
Android Police
[Not 2009] Verizon plans to launch a Palm smartphone later this year
Playing PUBG Mobile with a keyboard and mouse might not be 'cheating,' but it's close enough
Here are 16 temporarily free and 46 on-sale apps for Wednesday, including Monument Valley 2 and The Room 3
Get ready for battle, 'MARVEL Strike Force' is officially available on the Play Store
AT&T pushes Android 8.0 update to LG V30
Droid Life
Chrome Will Soon Let You Cast Local Files
Google Lets Bluetooth Speakers Join the Multi-Room Google Home Party
Android P Comes to Wear OS in New Developer Preview
I’m Not Sure OnePlus Would Have Any Ideas Without Apple
Official: Here’s the OnePlus 6 Top Notch
Reddit Android
Wear OS by Google developer preview
Google Home and Bluetooth speakers make the perfect pair
Samsung forced SABS developer to abandon the project
New system menu in Chrome OS 67 resembles Android P's design (x-post r/chromeos)
HMD Global Announces April 4 Event In India, Might Launch Nokia 6 (2018), Nokia 7 Plus, Nokia 8 Sirocco
TechCrunch Android
Hide 3D paintings anywhere with AR app Artopia
It was not consent, it was concealment
The NEEO universal remote is a modern Logitech Harmony alternative
Google Assistant on phones now lets you send and receive money
Mobile gaming is having a moment, and Apple has the reins
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Older Apps Might Become Useless After Android P
Google recently came up with a developers’ preview for Android P. The developers have now found a new class in the latest Android P Dev Preview. It sets a minimum API version apps on Play Store.
So, in Android P, if an app is not meeting the minimum API requirements, the OS will pop up a warning message stating:
Error message: “This app was built for an older version of Android and may not work properly. Try checking for updates, or contact the developer.”
We all know how pumped up Google is in keeping PlayStore in sync with new developments. Setting up a minimum API support requirement for newly uploaded apps is a perfect move. The update now restricts the developers from having a specific mindset before building an app, enabling the newly submitted apps to work with all the latest Android versions. Hence, the already available apps that fail to update will be retired for good.
continue reading...https://blog.galaxyweblinks.com/older-apps-might-become-useless-after-android-p/
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An Introduction To React With Ionic
About The Author
I love building software for the web, writing about web technologies, and playing video games. More about Jerry …
Mobile app development using hybrid frameworks has come a long way since initial release in 2008. With the improvements being made to the JavaScript engine and improved processing power available to mobile phones, the major concern people had when they considered developing their apps using the hybrid approach — namely, performance — has all but been eliminated, and cross-platform frameworks have seen a surge in popularity.
We’re going to build a mobile application that pulls data from the Marvel Comics API; the data will show Marvel comics and you’ll be able to choose your favorites. At the end, we’ll create a native build of the project on Android.
The Ionic Framework is an open-source UI toolkit for building fast, high-quality applications using web technologies with integrations for popular frameworks like Angular and React. Ionic enables cross-platform development using either Cordova or Capacitor, with the latter featuring support for desktop application development using Electron.
In this article, we will explore Ionic with the React integration by building an app that displays comics using the Marvel Comics API and allows users to create a collection of their favorites. We’ll also learn how to integrate native capabilities into our app with Capacitor and generate builds for a native platform.
If you have not worked with Ionic in the past, or you’re curious to find out how Ionic works with React, this tutorial is for you.
Prerequisites
Before you can start building apps with the Ionic Framework, you will need the following:
Node.js (at least v10) installed on your computer
working knowledge of React
familiarity with the Hooks API
some experience with TypeScript
a native IDE, Android Studio for Android, or XCode for iOS
a Marvel developer account with an API key. You can get one here
Here’s a picture of what we’ll be building:
Marvel comics client app (Large preview)
Installing Ionic CLI
Ionic apps are created and developed primarily through the Ionic command line interface (CLI). The CLI offers a wide range of dev tools and help options as you develop your hybrid app. To proceed with this guide, you will need to make sure the CLI is installed and accessible from your terminal.
Open a new terminal window and run the following command:
npm install -g @ionic/cli
This will install the latest version of the Ionic CLI and make it accessible from anywhere on your computer. If you want to confirm that the install was successful, you can run the following command:
ionic --version
This command will output the installed Ionic version on your computer and it should be similar to this:
6.4.1
You can now bootstrap Ionic apps for the officially supported framework integrations — Angular and React — using any of the prebuilt templates available.
Starting An Ionic React Application
Creating an Ionic React application is easy using the CLI. It provides a command named start that generates files for a new project based on the JavaScript framework you select. You can also choose to start off with a prebuilt UI template instead of the default blank “Hello world” app.
To get started, run the following command:
ionic start marvel-client tabs --type=react --capacitor
This command will create a new Ionic React app using the tabs template. It also adds a Capacitor integration to your app. Capacitor is a cross-platform app runtime that makes running web apps natively on iOS, Android, and desktop easy.
Navigate your terminal to the newly created directory and run start the server.
cd marvel-client ionic serve
Now point your browser to http://localhost:8100 to see your app running.
Note: If you have used create-react-app (CRA) before, your current project’s directory structure should feel very familiar. That’s because, in order to keep the development experience familiar, Ionic React projects are created using a setup similar to that found in a CRA app. React Router is also used to power app navigation under the hood.
Creating A React Component
You are going to create a reusable React component in this step. This component will receive data and display information about a comic. This step also aims to help demonstrate that Ionic React is still just React.
Delete the files for the ExploreContainer component from src/components and remove its imports from the .tsx files in the src/pages directory.
import React from 'react'; import { IonContent, IonHeader, IonPage, IonTitle, IonToolbar } from '@ionic/react'; import ExploreContainer from '../components/ExploreContainer'; import './Tab1.css'; const Tab1: React.FC = () => { return ( <IonPage> ... <IonContent> <IonHeader collapse="condense"> <IonToolbar> <IonTitle size="large">Tab 1</IonTitle> </IonToolbar> </IonHeader> <ExploreContainer name="Tab 1 page" /> </IonContent> </IonPage> ); }; export default Tab1;
In your Tab1.tsx file, also remove the content within the <IonContent></IonContent> tag.
Next, create a file named ComicCard.tsx in your src/components directory. Then, open the file in your editor and add the following contents:
import React, { FC } from 'react'; import { Comic } from '../interfaces/comic'; import { IonImg, IonCard, IonCardTitle, IonCardSubtitle, IonCardHeader } from '@ionic/react'; type Props = { comic: Comic; } const ComicCard: FC = (props): JSX.Element => { const { comic } = props; return ( <IonCard> <div style= > <IonImg src={`${comic.thumbnail.path}.${comic.thumbnail.extension}`} /> </div> <IonCardHeader> <IonCardSubtitle> {comic.title} </IonCardSubtitle> <IonCardTitle> <h3> {comic.series.name} </h3> </IonCardTitle> </IonCardHeader> </IonCard> ); } export default ComicCard;
Your ComicCard component receives props containing details of a comic and renders the information using an IonCard component. Cards in Ionic are usually composed using other subcomponents. In this file, you are using the IonCardTitle and IonCardSubtitle components to render the comic title and series information within a IonCardHeader component.
Consuming The Marvel API
To use your newly created component you would have to fetch some data from the Marvel API. For the purpose of this guide, you are going to use the axios package to make your HTTP Requests. You can install it by running the following command:
yarn add axios
Next, add the following folder to your src directory:
# ~/Desktop/marvel-client/src mkdir -p services
Then, cd into the services directory and create a file named api.ts:
# ~/Desktop/marvel-client/src/services touch api.ts
Finally, open the file and add the following contents:
import axios from 'axios'; import { DataContainer } from '../interfaces/data-container'; import { Comic } from '../interfaces/comic'; const API_KEY = '813xxxxxxxxxxxxxxxxxx'; const api = axios.create({ baseURL: 'https://gateway.marvel.com:443/v1/public', headers: { 'Content-Type': 'application/json', }, }); api.interceptors.response.use((response) => { if (response.status === 200) { return response.data.data; } }); export function getComics(): Promise<DataContainer<Comic>> { return api.get('/comics', { params: { apikey: API_KEY, limit: 10, hasDigitalIssue: true, }, }); }
Be sure to replace the value of API_KEY with your own API key. If you don’t have one, you can request one by signing up at the Marvel developer website. You also need to set up your account to allow requests from your local development server by adding localhost* to your Marvel authorized referrers list (see the image below):
Marvel Account. (Large preview)
You now have an axios instance configured to use the Marvel API. The api.ts file has only one export, which hits the GET /comics endpoint and returns a collection of comics. You are limiting the results to only those that are available digitally. You will now proceed to use the API Service in your application.
Open the Tab1.tsx file and replace the contents with the following:
import React, { FC, useState, useEffect } from 'react'; import { IonContent, IonHeader, IonPage, IonTitle, IonToolbar, IonSpinner, IonGrid, IonRow, IonCol } from '@ionic/react'; import './Tab1.css'; import ComicCard from '../components/ComicCard'; import { Comic } from '../interfaces/comic'; import { getComics } from '../services/api'; const Tab1: FC = () => { const [comics, setComics] = useState(null as Comic[] | null); const [loading, setLoading] = useState(false); const fetchComics = () => { setLoading(true); getComics().then((response) => { if (response && response.results) { setComics(response.results); } }).finally(() => { setLoading(false); }); }; useEffect(() => { fetchComics(); }, []) return ( <IonPage> <IonHeader> <IonToolbar> <IonTitle>Home</IonTitle> </IonToolbar> </IonHeader> <IonContent> {(loading) && ( <div className="ion-text-center ion-padding"> <IonSpinner name="crescent" /> </div> )} {(comics) && ( <IonGrid> <IonRow> {comics.map((comic) => ( <IonCol key={comic.id} sizeXs="12" sizeSm="6" sizeMd="4" sizeLg="3" sizeXl="2"> <ComicCard comic={comic} /> </IonCol> ))} </IonRow> </IonGrid> )} </IonContent> </IonPage> ); }; export default Tab1;
The file above is an example of a page in Ionic. Pages are components that can be accessed with a route/URL. To ensure transitions between pages work properly, it is necessary to have the IonPage component be the root component in your page.
IonHeader is a component meant to exist at the top of a page. It’s not required for all pages, but it can contain useful components like the page title, the IonBackButton component for navigating between pages, or the IonSearchBar. IonContent is the main content area for your pages. It’s responsible for providing the scrollable content that users will interact with, plus any scroll events that could be used in your app.
Inside your component, you have a function called fetchComics() — called once inside the useEffect() hook — which makes a request to get comics from the Marvel API by calling the getComics() function you wrote earlier. It saves the results to your component’s state via the useState() hook. The IonSpinner component renders a spinning icon while your app is making a request to the API. When the request is completed, you pass the results to the ComicCard component you created earlier.
At this point your app should look like this:
App home page. (Large preview)
In the next step, you will learn how to use Capacitor plugins in your app by enabling offline storage.
Creating a Personal Collection of Marvel Comics
Your app looks good so far, but it isn’t very useful as a mobile app. In this step you will extend your app’s functionality by allowing users to ‘star’ comics, or save them as favorites. You will also make information about the saved favorites available to view offline by using the Capacitor Storage plugin.
I’m a big fan of The Collector. (Large preview)
First, create a file named util.ts in your src directory:
# ~/Desktop/marvel-client/src touch util.ts
Now, open the file and paste the following contents:
import { Plugins } from '@capacitor/core'; import { Comic } from './interfaces/comic'; const { Storage, Toast } = Plugins; export const updateFavourites = async (comic: Comic): Promise => { const saved = await Storage.get({ key: 'savedFavourites' }); const favourites: Comic[] | null = (saved && saved.value) ? JSON.parse(saved.value) : null; if (!favourites) { const comics = [comic]; await Storage.set({ key: 'savedFavourites', value: JSON.stringify(comics), }); return Toast.show({ text: 'Added to favourites', }); } const copyOfFavourites = favourites.slice(); const { id } = comic; const isSavedIndex = copyOfFavourites.findIndex((c) => c.id === id); if (isSavedIndex !== -1) { copyOfFavourites.splice(isSavedIndex, 1); await Storage.set({ key: 'savedFavourites', value: JSON.stringify(copyOfFavourites), }); return Toast.show({ text: 'Removed from favourites', }); } else { copyOfFavourites.unshift(comic); await Storage.set({ key: 'savedFavourites', value: JSON.stringify(copyOfFavourites), }); return Toast.show({ text: 'Added to favourites', }); } }; export const getFavourites = async (): Promise<Comic[] | null> => { const saved = await Storage.get({ key: 'savedFavourites', }); return (saved && saved.value) ? JSON.parse(saved.value) : null; }; export const checkFavourite = async (id: number): Promise<boolean> => { const saved = await Storage.get({ key: 'savedFavourites', }); const favourites: Comic[] | null = (saved && saved.value) ? JSON.parse(saved.value) : null; if (favourites) { const isSavedIndex = favourites.findIndex((c) => c.id === id); if (isSavedIndex !== -1) { return true; } } return false; };
The Storage plugin provides a key-value store for simple data, while the Toast plugin provides a notification pop-up for displaying important information to a user.
The updateFavourites() function in this file takes a single argument, a Comic object, and adds it to the device storage if it doesn’t exist, or removes it from the device storage if it was already saved. getFavourites() returns the user’s saved comics, while checkFavourites() accepts a single argument, a Comic resource ID, and looks it up in the saved comics, returning true if it exists, or false otherwise.
Next, open the ComicCard.tsx file and make the following changes to allow your app’s users to save their favorite comics:
import { star, starOutline } from 'ionicons/icons'; import * as utils from '../util'; type Props = { comic: Comic; } const ComicCard: FC<Props> = (props): JSX.Element => { const { comic } = props; const [isFavourite, setIsFavourite] = useState(false); const checkFavourite = (): void => { utils.checkFavourite(comic.id).then((value: boolean) => { setIsFavourite(value); }); } useEffect(() => { checkFavourite(); }); return ( <IonCard> ... <IonCardHeader> ... </IonCardHeader> <IonCardContent> <IonButton onClick={(): void => { utils.updateFavourites(comic).finally(() => { checkFavourite(); }); }} > <IonIcon icon={(isFavourite) ? star : starOutline} color="light" /> {(isFavourite) ? 'Remove' : 'Add' } </IonButton> </IonCardContent> </IonCard> ); }
Your ComicCard component now has a IonButton component that, when clicked, calls the updateFavourites() function you wrote earlier. Remember that the function acts like a toggle, removing the comic if it was already saved, or else saving it. Don’t forget to add the imports for the new Ionic components, IonButton, IonCardContent and IonIcon, just added to this component.
Now for the final part of this step, where you will be rendering saved comics in their own page. Replace the contents of the Tab2.tsx file with the following:
import React, { useState } from 'react'; import { IonContent, IonHeader, IonPage, IonTitle, IonToolbar, IonGrid, IonRow, IonCol, useIonViewWillEnter } from '@ionic/react'; import './Tab2.css'; import { Comic } from '../interfaces/comic'; import { getFavourites } from '../util'; import ComicCard from '../components/ComicCard'; const Tab2: React.FC = () => { const [comics, setComics] = useState(null as Comic[] | null); const loadComics = (): void => { getFavourites().then((result) => { if (result) { setComics(result); } }) }; useIonViewWillEnter(() => { loadComics(); }); return ( <IonPage> <IonHeader> <IonToolbar> <IonTitle>Favourites</IonTitle> </IonToolbar> </IonHeader> <IonContent> {(comics) && ( <IonGrid> <IonRow> {comics.map((comic) => ( <IonCol key={comic.id} sizeXs="12" sizeSm="6" sizeMd="4" sizeLg="3" sizeXl="2"> <ComicCard comic={comic} /> </IonCol> ))} </IonRow> </IonGrid> )} </IonContent> </IonPage> ); }; export default Tab2;
This page is quite similar to the Tab1 page but, instead of making an API request to get comics, you are accessing locally saved data. You are also using the Ionic life cycle hook, useIonViewWillEnter(), instead of a useEffect() hook, to make a call to the function that reads saved comics and updates the component’s state. The useIonViewWillEnter() hook gets called just as the page being navigated to enters into view.
Your application now makes use of a few native plugins to improve its functionality. In the next step, you will learn how to generate a native project for Android and create a native app using Android Studio.
Note: You can delete the files related to *Tab3* and remove the import and related *IonTab* component in the *App.tsx* file.
Generating A Native Project
Ionic comes with support for cross-platform app runtimes such as Capacitor and Cordova. These frameworks help you to build and run apps developed using Ionic on a native device or emulator. For the purpose of this guide, you will be using Capacitor to generate native project files.
Before proceeding to adding a platform, you will need to generate a production build of your application. Run the following command in your project’s root directory to do so:
ionic build
Now let’s add Capacitor to your project and generate the assets required to build a native application. Capacitor provides a CLI which can be accessed in your project by using npx or from the ionic CLI as shown below:
Using npx
npx cap add android
This command adds the android platform to your project. Other possible platform values are ios and electron.
Using ionic
Since you initialized your project using the --capacitor flag earlier, Capacitor has already been initialized with your project’s information. You can proceed to adding a platform by running the following command:
ionic capacitor add android
This command will install the required dependencies for the android platform. It will also generate files required for a native Android project and copy over the assets you built earlier when running ionic build.
If you have installed Android Studio, you can now open your project in Android Studio by running:
ionic capacitor open android
Finally, build your project:
Generate an APK. (Large preview)
Conclusion
In this guide, you have learned how to develop hybrid mobile applications using Ionic Framework’s React integration. You also learned how to use Capacitor for building native apps, specifically for the Android platform. Check out the API docs as there are a lot more UI components available to be used in Ionic apps that we didn’t explore. You can find the code on GitHub.
References
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An Introduction To React With Ionic
About The Author
I love building software for the web, writing about web technologies, and playing video games. More about Jerry …
Mobile app development using hybrid frameworks has come a long way since initial release in 2008. With the improvements being made to the JavaScript engine and improved processing power available to mobile phones, the major concern people had when they considered developing their apps using the hybrid approach — namely, performance — has all but been eliminated, and cross-platform frameworks have seen a surge in popularity.
We’re going to build a mobile application that pulls data from the Marvel Comics API; the data will show Marvel comics and you’ll be able to choose your favorites. At the end, we’ll create a native build of the project on Android.
The Ionic Framework is an open-source UI toolkit for building fast, high-quality applications using web technologies with integrations for popular frameworks like Angular and React. Ionic enables cross-platform development using either Cordova or Capacitor, with the latter featuring support for desktop application development using Electron.
In this article, we will explore Ionic with the React integration by building an app that displays comics using the Marvel Comics API and allows users to create a collection of their favorites. We’ll also learn how to integrate native capabilities into our app with Capacitor and generate builds for a native platform.
If you have not worked with Ionic in the past, or you’re curious to find out how Ionic works with React, this tutorial is for you.
Prerequisites
Before you can start building apps with the Ionic Framework, you will need the following:
Node.js (at least v10) installed on your computer
working knowledge of React
familiarity with the Hooks API
some experience with TypeScript
a native IDE, Android Studio for Android, or XCode for iOS
a Marvel developer account with an API key. You can get one here
Here’s a picture of what we’ll be building:
Marvel comics client app (Large preview)
Installing Ionic CLI
Ionic apps are created and developed primarily through the Ionic command line interface (CLI). The CLI offers a wide range of dev tools and help options as you develop your hybrid app. To proceed with this guide, you will need to make sure the CLI is installed and accessible from your terminal.
Open a new terminal window and run the following command:
npm install -g @ionic/cli
This will install the latest version of the Ionic CLI and make it accessible from anywhere on your computer. If you want to confirm that the install was successful, you can run the following command:
ionic --version
This command will output the installed Ionic version on your computer and it should be similar to this:
6.4.1
You can now bootstrap Ionic apps for the officially supported framework integrations — Angular and React — using any of the prebuilt templates available.
Starting An Ionic React Application
Creating an Ionic React application is easy using the CLI. It provides a command named start that generates files for a new project based on the JavaScript framework you select. You can also choose to start off with a prebuilt UI template instead of the default blank “Hello world” app.
To get started, run the following command:
ionic start marvel-client tabs --type=react --capacitor
This command will create a new Ionic React app using the tabs template. It also adds a Capacitor integration to your app. Capacitor is a cross-platform app runtime that makes running web apps natively on iOS, Android, and desktop easy.
Navigate your terminal to the newly created directory and run start the server.
cd marvel-client ionic serve
Now point your browser to http://localhost:8100 to see your app running.
Note: If you have used create-react-app (CRA) before, your current project’s directory structure should feel very familiar. That’s because, in order to keep the development experience familiar, Ionic React projects are created using a setup similar to that found in a CRA app. React Router is also used to power app navigation under the hood.
Creating A React Component
You are going to create a reusable React component in this step. This component will receive data and display information about a comic. This step also aims to help demonstrate that Ionic React is still just React.
Delete the files for the ExploreContainer component from src/components and remove its imports from the .tsx files in the src/pages directory.
import React from 'react'; import { IonContent, IonHeader, IonPage, IonTitle, IonToolbar } from '@ionic/react'; import ExploreContainer from '../components/ExploreContainer'; import './Tab1.css'; const Tab1: React.FC = () => { return ( <IonPage> ... <IonContent> <IonHeader collapse="condense"> <IonToolbar> <IonTitle size="large">Tab 1</IonTitle> </IonToolbar> </IonHeader> <ExploreContainer name="Tab 1 page" /> </IonContent> </IonPage> ); }; export default Tab1;
In your Tab1.tsx file, also remove the content within the <IonContent></IonContent> tag.
Next, create a file named ComicCard.tsx in your src/components directory. Then, open the file in your editor and add the following contents:
import React, { FC } from 'react'; import { Comic } from '../interfaces/comic'; import { IonImg, IonCard, IonCardTitle, IonCardSubtitle, IonCardHeader } from '@ionic/react'; type Props = { comic: Comic; } const ComicCard: FC = (props): JSX.Element => { const { comic } = props; return ( <IonCard> <div style= > <IonImg src={`${comic.thumbnail.path}.${comic.thumbnail.extension}`} /> </div> <IonCardHeader> <IonCardSubtitle> {comic.title} </IonCardSubtitle> <IonCardTitle> <h3> {comic.series.name} </h3> </IonCardTitle> </IonCardHeader> </IonCard> ); } export default ComicCard;
Your ComicCard component receives props containing details of a comic and renders the information using an IonCard component. Cards in Ionic are usually composed using other subcomponents. In this file, you are using the IonCardTitle and IonCardSubtitle components to render the comic title and series information within a IonCardHeader component.
Consuming The Marvel API
To use your newly created component you would have to fetch some data from the Marvel API. For the purpose of this guide, you are going to use the axios package to make your HTTP Requests. You can install it by running the following command:
yarn add axios
Next, add the following folder to your src directory:
# ~/Desktop/marvel-client/src mkdir -p services
Then, cd into the services directory and create a file named api.ts:
# ~/Desktop/marvel-client/src/services touch api.ts
Finally, open the file and add the following contents:
import axios from 'axios'; import { DataContainer } from '../interfaces/data-container'; import { Comic } from '../interfaces/comic'; const API_KEY = '813xxxxxxxxxxxxxxxxxx'; const api = axios.create({ baseURL: 'https://gateway.marvel.com:443/v1/public', headers: { 'Content-Type': 'application/json', }, }); api.interceptors.response.use((response) => { if (response.status === 200) { return response.data.data; } }); export function getComics(): Promise<DataContainer<Comic>> { return api.get('/comics', { params: { apikey: API_KEY, limit: 10, hasDigitalIssue: true, }, }); }
Be sure to replace the value of API_KEY with your own API key. If you don’t have one, you can request one by signing up at the Marvel developer website. You also need to set up your account to allow requests from your local development server by adding localhost* to your Marvel authorized referrers list (see the image below):
Marvel Account. (Large preview)
You now have an axios instance configured to use the Marvel API. The api.ts file has only one export, which hits the GET /comics endpoint and returns a collection of comics. You are limiting the results to only those that are available digitally. You will now proceed to use the API Service in your application.
Open the Tab1.tsx file and replace the contents with the following:
import React, { FC, useState, useEffect } from 'react'; import { IonContent, IonHeader, IonPage, IonTitle, IonToolbar, IonSpinner, IonGrid, IonRow, IonCol } from '@ionic/react'; import './Tab1.css'; import ComicCard from '../components/ComicCard'; import { Comic } from '../interfaces/comic'; import { getComics } from '../services/api'; const Tab1: FC = () => { const [comics, setComics] = useState(null as Comic[] | null); const [loading, setLoading] = useState(false); const fetchComics = () => { setLoading(true); getComics().then((response) => { if (response && response.results) { setComics(response.results); } }).finally(() => { setLoading(false); }); }; useEffect(() => { fetchComics(); }, []) return ( <IonPage> <IonHeader> <IonToolbar> <IonTitle>Home</IonTitle> </IonToolbar> </IonHeader> <IonContent> {(loading) && ( <div className="ion-text-center ion-padding"> <IonSpinner name="crescent" /> </div> )} {(comics) && ( <IonGrid> <IonRow> {comics.map((comic) => ( <IonCol key={comic.id} sizeXs="12" sizeSm="6" sizeMd="4" sizeLg="3" sizeXl="2"> <ComicCard comic={comic} /> </IonCol> ))} </IonRow> </IonGrid> )} </IonContent> </IonPage> ); }; export default Tab1;
The file above is an example of a page in Ionic. Pages are components that can be accessed with a route/URL. To ensure transitions between pages work properly, it is necessary to have the IonPage component be the root component in your page.
IonHeader is a component meant to exist at the top of a page. It’s not required for all pages, but it can contain useful components like the page title, the IonBackButton component for navigating between pages, or the IonSearchBar. IonContent is the main content area for your pages. It’s responsible for providing the scrollable content that users will interact with, plus any scroll events that could be used in your app.
Inside your component, you have a function called fetchComics() — called once inside the useEffect() hook — which makes a request to get comics from the Marvel API by calling the getComics() function you wrote earlier. It saves the results to your component’s state via the useState() hook. The IonSpinner component renders a spinning icon while your app is making a request to the API. When the request is completed, you pass the results to the ComicCard component you created earlier.
At this point your app should look like this:
App home page. (Large preview)
In the next step, you will learn how to use Capacitor plugins in your app by enabling offline storage.
Creating a Personal Collection of Marvel Comics
Your app looks good so far, but it isn’t very useful as a mobile app. In this step you will extend your app’s functionality by allowing users to ‘star’ comics, or save them as favorites. You will also make information about the saved favorites available to view offline by using the Capacitor Storage plugin.
I’m a big fan of The Collector. (Large preview)
First, create a file named util.ts in your src directory:
# ~/Desktop/marvel-client/src touch util.ts
Now, open the file and paste the following contents:
import { Plugins } from '@capacitor/core'; import { Comic } from './interfaces/comic'; const { Storage, Toast } = Plugins; export const updateFavourites = async (comic: Comic): Promise => { const saved = await Storage.get({ key: 'savedFavourites' }); const favourites: Comic[] | null = (saved && saved.value) ? JSON.parse(saved.value) : null; if (!favourites) { const comics = [comic]; await Storage.set({ key: 'savedFavourites', value: JSON.stringify(comics), }); return Toast.show({ text: 'Added to favourites', }); } const copyOfFavourites = favourites.slice(); const { id } = comic; const isSavedIndex = copyOfFavourites.findIndex((c) => c.id === id); if (isSavedIndex !== -1) { copyOfFavourites.splice(isSavedIndex, 1); await Storage.set({ key: 'savedFavourites', value: JSON.stringify(copyOfFavourites), }); return Toast.show({ text: 'Removed from favourites', }); } else { copyOfFavourites.unshift(comic); await Storage.set({ key: 'savedFavourites', value: JSON.stringify(copyOfFavourites), }); return Toast.show({ text: 'Added to favourites', }); } }; export const getFavourites = async (): Promise<Comic[] | null> => { const saved = await Storage.get({ key: 'savedFavourites', }); return (saved && saved.value) ? JSON.parse(saved.value) : null; }; export const checkFavourite = async (id: number): Promise<boolean> => { const saved = await Storage.get({ key: 'savedFavourites', }); const favourites: Comic[] | null = (saved && saved.value) ? JSON.parse(saved.value) : null; if (favourites) { const isSavedIndex = favourites.findIndex((c) => c.id === id); if (isSavedIndex !== -1) { return true; } } return false; };
The Storage plugin provides a key-value store for simple data, while the Toast plugin provides a notification pop-up for displaying important information to a user.
The updateFavourites() function in this file takes a single argument, a Comic object, and adds it to the device storage if it doesn’t exist, or removes it from the device storage if it was already saved. getFavourites() returns the user’s saved comics, while checkFavourites() accepts a single argument, a Comic resource ID, and looks it up in the saved comics, returning true if it exists, or false otherwise.
Next, open the ComicCard.tsx file and make the following changes to allow your app’s users to save their favorite comics:
import { star, starOutline } from 'ionicons/icons'; import * as utils from '../util'; type Props = { comic: Comic; } const ComicCard: FC<Props> = (props): JSX.Element => { const { comic } = props; const [isFavourite, setIsFavourite] = useState(false); const checkFavourite = (): void => { utils.checkFavourite(comic.id).then((value: boolean) => { setIsFavourite(value); }); } useEffect(() => { checkFavourite(); }); return ( <IonCard> ... <IonCardHeader> ... </IonCardHeader> <IonCardContent> <IonButton onClick={(): void => { utils.updateFavourites(comic).finally(() => { checkFavourite(); }); }} > <IonIcon icon={(isFavourite) ? star : starOutline} color="light" /> {(isFavourite) ? 'Remove' : 'Add' } </IonButton> </IonCardContent> </IonCard> ); }
Your ComicCard component now has a IonButton component that, when clicked, calls the updateFavourites() function you wrote earlier. Remember that the function acts like a toggle, removing the comic if it was already saved, or else saving it. Don’t forget to add the imports for the new Ionic components, IonButton, IonCardContent and IonIcon, just added to this component.
Now for the final part of this step, where you will be rendering saved comics in their own page. Replace the contents of the Tab2.tsx file with the following:
import React, { useState } from 'react'; import { IonContent, IonHeader, IonPage, IonTitle, IonToolbar, IonGrid, IonRow, IonCol, useIonViewWillEnter } from '@ionic/react'; import './Tab2.css'; import { Comic } from '../interfaces/comic'; import { getFavourites } from '../util'; import ComicCard from '../components/ComicCard'; const Tab2: React.FC = () => { const [comics, setComics] = useState(null as Comic[] | null); const loadComics = (): void => { getFavourites().then((result) => { if (result) { setComics(result); } }) }; useIonViewWillEnter(() => { loadComics(); }); return ( <IonPage> <IonHeader> <IonToolbar> <IonTitle>Favourites</IonTitle> </IonToolbar> </IonHeader> <IonContent> {(comics) && ( <IonGrid> <IonRow> {comics.map((comic) => ( <IonCol key={comic.id} sizeXs="12" sizeSm="6" sizeMd="4" sizeLg="3" sizeXl="2"> <ComicCard comic={comic} /> </IonCol> ))} </IonRow> </IonGrid> )} </IonContent> </IonPage> ); }; export default Tab2;
This page is quite similar to the Tab1 page but, instead of making an API request to get comics, you are accessing locally saved data. You are also using the Ionic life cycle hook, useIonViewWillEnter(), instead of a useEffect() hook, to make a call to the function that reads saved comics and updates the component’s state. The useIonViewWillEnter() hook gets called just as the page being navigated to enters into view.
Your application now makes use of a few native plugins to improve its functionality. In the next step, you will learn how to generate a native project for Android and create a native app using Android Studio.
Note: You can delete the files related to *Tab3* and remove the import and related *IonTab* component in the *App.tsx* file.
Generating A Native Project
Ionic comes with support for cross-platform app runtimes such as Capacitor and Cordova. These frameworks help you to build and run apps developed using Ionic on a native device or emulator. For the purpose of this guide, you will be using Capacitor to generate native project files.
Before proceeding to adding a platform, you will need to generate a production build of your application. Run the following command in your project’s root directory to do so:
ionic build
Now let’s add Capacitor to your project and generate the assets required to build a native application. Capacitor provides a CLI which can be accessed in your project by using npx or from the ionic CLI as shown below:
Using npx
npx cap add android
This command adds the android platform to your project. Other possible platform values are ios and electron.
Using ionic
Since you initialized your project using the --capacitor flag earlier, Capacitor has already been initialized with your project’s information. You can proceed to adding a platform by running the following command:
ionic capacitor add android
This command will install the required dependencies for the android platform. It will also generate files required for a native Android project and copy over the assets you built earlier when running ionic build.
If you have installed Android Studio, you can now open your project in Android Studio by running:
ionic capacitor open android
Finally, build your project:
Generate an APK. (Large preview)
Conclusion
In this guide, you have learned how to develop hybrid mobile applications using Ionic Framework’s React integration. You also learned how to use Capacitor for building native apps, specifically for the Android platform. Check out the API docs as there are a lot more UI components available to be used in Ionic apps that we didn’t explore. You can find the code on GitHub.
References
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An Introduction To React With Ionic
About The Author
I love building software for the web, writing about web technologies, and playing video games. More about Jerry …
Mobile app development using hybrid frameworks has come a long way since initial release in 2008. With the improvements being made to the JavaScript engine and improved processing power available to mobile phones, the major concern people had when they considered developing their apps using the hybrid approach — namely, performance — has all but been eliminated, and cross-platform frameworks have seen a surge in popularity.
We’re going to build a mobile application that pulls data from the Marvel Comics API; the data will show Marvel comics and you’ll be able to choose your favorites. At the end, we’ll create a native build of the project on Android.
The Ionic Framework is an open-source UI toolkit for building fast, high-quality applications using web technologies with integrations for popular frameworks like Angular and React. Ionic enables cross-platform development using either Cordova or Capacitor, with the latter featuring support for desktop application development using Electron.
In this article, we will explore Ionic with the React integration by building an app that displays comics using the Marvel Comics API and allows users to create a collection of their favorites. We’ll also learn how to integrate native capabilities into our app with Capacitor and generate builds for a native platform.
If you have not worked with Ionic in the past, or you’re curious to find out how Ionic works with React, this tutorial is for you.
Prerequisites
Before you can start building apps with the Ionic Framework, you will need the following:
Node.js (at least v10) installed on your computer
working knowledge of React
familiarity with the Hooks API
some experience with TypeScript
a native IDE, Android Studio for Android, or XCode for iOS
a Marvel developer account with an API key. You can get one here
Here’s a picture of what we’ll be building:
Marvel comics client app (Large preview)
Installing Ionic CLI
Ionic apps are created and developed primarily through the Ionic command line interface (CLI). The CLI offers a wide range of dev tools and help options as you develop your hybrid app. To proceed with this guide, you will need to make sure the CLI is installed and accessible from your terminal.
Open a new terminal window and run the following command:
npm install -g @ionic/cli
This will install the latest version of the Ionic CLI and make it accessible from anywhere on your computer. If you want to confirm that the install was successful, you can run the following command:
ionic --version
This command will output the installed Ionic version on your computer and it should be similar to this:
6.4.1
You can now bootstrap Ionic apps for the officially supported framework integrations — Angular and React — using any of the prebuilt templates available.
Starting An Ionic React Application
Creating an Ionic React application is easy using the CLI. It provides a command named start that generates files for a new project based on the JavaScript framework you select. You can also choose to start off with a prebuilt UI template instead of the default blank “Hello world” app.
To get started, run the following command:
ionic start marvel-client tabs --type=react --capacitor
This command will create a new Ionic React app using the tabs template. It also adds a Capacitor integration to your app. Capacitor is a cross-platform app runtime that makes running web apps natively on iOS, Android, and desktop easy.
Navigate your terminal to the newly created directory and run start the server.
cd marvel-client ionic serve
Now point your browser to http://localhost:8100 to see your app running.
Note: If you have used create-react-app (CRA) before, your current project’s directory structure should feel very familiar. That’s because, in order to keep the development experience familiar, Ionic React projects are created using a setup similar to that found in a CRA app. React Router is also used to power app navigation under the hood.
Creating A React Component
You are going to create a reusable React component in this step. This component will receive data and display information about a comic. This step also aims to help demonstrate that Ionic React is still just React.
Delete the files for the ExploreContainer component from src/components and remove its imports from the .tsx files in the src/pages directory.
import React from 'react'; import { IonContent, IonHeader, IonPage, IonTitle, IonToolbar } from '@ionic/react'; import ExploreContainer from '../components/ExploreContainer'; import './Tab1.css'; const Tab1: React.FC = () => { return ( <IonPage> ... <IonContent> <IonHeader collapse="condense"> <IonToolbar> <IonTitle size="large">Tab 1</IonTitle> </IonToolbar> </IonHeader> <ExploreContainer name="Tab 1 page" /> </IonContent> </IonPage> ); }; export default Tab1;
In your Tab1.tsx file, also remove the content within the <IonContent></IonContent> tag.
Next, create a file named ComicCard.tsx in your src/components directory. Then, open the file in your editor and add the following contents:
import React, { FC } from 'react'; import { Comic } from '../interfaces/comic'; import { IonImg, IonCard, IonCardTitle, IonCardSubtitle, IonCardHeader } from '@ionic/react'; type Props = { comic: Comic; } const ComicCard: FC = (props): JSX.Element => { const { comic } = props; return ( <IonCard> <div style= > <IonImg src={`${comic.thumbnail.path}.${comic.thumbnail.extension}`} /> </div> <IonCardHeader> <IonCardSubtitle> {comic.title} </IonCardSubtitle> <IonCardTitle> <h3> {comic.series.name} </h3> </IonCardTitle> </IonCardHeader> </IonCard> ); } export default ComicCard;
Your ComicCard component receives props containing details of a comic and renders the information using an IonCard component. Cards in Ionic are usually composed using other subcomponents. In this file, you are using the IonCardTitle and IonCardSubtitle components to render the comic title and series information within a IonCardHeader component.
Consuming The Marvel API
To use your newly created component you would have to fetch some data from the Marvel API. For the purpose of this guide, you are going to use the axios package to make your HTTP Requests. You can install it by running the following command:
yarn add axios
Next, add the following folder to your src directory:
# ~/Desktop/marvel-client/src mkdir -p services
Then, cd into the services directory and create a file named api.ts:
# ~/Desktop/marvel-client/src/services touch api.ts
Finally, open the file and add the following contents:
import axios from 'axios'; import { DataContainer } from '../interfaces/data-container'; import { Comic } from '../interfaces/comic'; const API_KEY = '813xxxxxxxxxxxxxxxxxx'; const api = axios.create({ baseURL: 'https://gateway.marvel.com:443/v1/public', headers: { 'Content-Type': 'application/json', }, }); api.interceptors.response.use((response) => { if (response.status === 200) { return response.data.data; } }); export function getComics(): Promise<DataContainer<Comic>> { return api.get('/comics', { params: { apikey: API_KEY, limit: 10, hasDigitalIssue: true, }, }); }
Be sure to replace the value of API_KEY with your own API key. If you don’t have one, you can request one by signing up at the Marvel developer website. You also need to set up your account to allow requests from your local development server by adding localhost* to your Marvel authorized referrers list (see the image below):
Marvel Account. (Large preview)
You now have an axios instance configured to use the Marvel API. The api.ts file has only one export, which hits the GET /comics endpoint and returns a collection of comics. You are limiting the results to only those that are available digitally. You will now proceed to use the API Service in your application.
Open the Tab1.tsx file and replace the contents with the following:
import React, { FC, useState, useEffect } from 'react'; import { IonContent, IonHeader, IonPage, IonTitle, IonToolbar, IonSpinner, IonGrid, IonRow, IonCol } from '@ionic/react'; import './Tab1.css'; import ComicCard from '../components/ComicCard'; import { Comic } from '../interfaces/comic'; import { getComics } from '../services/api'; const Tab1: FC = () => { const [comics, setComics] = useState(null as Comic[] | null); const [loading, setLoading] = useState(false); const fetchComics = () => { setLoading(true); getComics().then((response) => { if (response && response.results) { setComics(response.results); } }).finally(() => { setLoading(false); }); }; useEffect(() => { fetchComics(); }, []) return ( <IonPage> <IonHeader> <IonToolbar> <IonTitle>Home</IonTitle> </IonToolbar> </IonHeader> <IonContent> {(loading) && ( <div className="ion-text-center ion-padding"> <IonSpinner name="crescent" /> </div> )} {(comics) && ( <IonGrid> <IonRow> {comics.map((comic) => ( <IonCol key={comic.id} sizeXs="12" sizeSm="6" sizeMd="4" sizeLg="3" sizeXl="2"> <ComicCard comic={comic} /> </IonCol> ))} </IonRow> </IonGrid> )} </IonContent> </IonPage> ); }; export default Tab1;
The file above is an example of a page in Ionic. Pages are components that can be accessed with a route/URL. To ensure transitions between pages work properly, it is necessary to have the IonPage component be the root component in your page.
IonHeader is a component meant to exist at the top of a page. It’s not required for all pages, but it can contain useful components like the page title, the IonBackButton component for navigating between pages, or the IonSearchBar. IonContent is the main content area for your pages. It’s responsible for providing the scrollable content that users will interact with, plus any scroll events that could be used in your app.
Inside your component, you have a function called fetchComics() — called once inside the useEffect() hook — which makes a request to get comics from the Marvel API by calling the getComics() function you wrote earlier. It saves the results to your component’s state via the useState() hook. The IonSpinner component renders a spinning icon while your app is making a request to the API. When the request is completed, you pass the results to the ComicCard component you created earlier.
At this point your app should look like this:
App home page. (Large preview)
In the next step, you will learn how to use Capacitor plugins in your app by enabling offline storage.
Creating a Personal Collection of Marvel Comics
Your app looks good so far, but it isn’t very useful as a mobile app. In this step you will extend your app’s functionality by allowing users to ‘star’ comics, or save them as favorites. You will also make information about the saved favorites available to view offline by using the Capacitor Storage plugin.
I’m a big fan of The Collector. (Large preview)
First, create a file named util.ts in your src directory:
# ~/Desktop/marvel-client/src touch util.ts
Now, open the file and paste the following contents:
import { Plugins } from '@capacitor/core'; import { Comic } from './interfaces/comic'; const { Storage, Toast } = Plugins; export const updateFavourites = async (comic: Comic): Promise => { const saved = await Storage.get({ key: 'savedFavourites' }); const favourites: Comic[] | null = (saved && saved.value) ? JSON.parse(saved.value) : null; if (!favourites) { const comics = [comic]; await Storage.set({ key: 'savedFavourites', value: JSON.stringify(comics), }); return Toast.show({ text: 'Added to favourites', }); } const copyOfFavourites = favourites.slice(); const { id } = comic; const isSavedIndex = copyOfFavourites.findIndex((c) => c.id === id); if (isSavedIndex !== -1) { copyOfFavourites.splice(isSavedIndex, 1); await Storage.set({ key: 'savedFavourites', value: JSON.stringify(copyOfFavourites), }); return Toast.show({ text: 'Removed from favourites', }); } else { copyOfFavourites.unshift(comic); await Storage.set({ key: 'savedFavourites', value: JSON.stringify(copyOfFavourites), }); return Toast.show({ text: 'Added to favourites', }); } }; export const getFavourites = async (): Promise<Comic[] | null> => { const saved = await Storage.get({ key: 'savedFavourites', }); return (saved && saved.value) ? JSON.parse(saved.value) : null; }; export const checkFavourite = async (id: number): Promise<boolean> => { const saved = await Storage.get({ key: 'savedFavourites', }); const favourites: Comic[] | null = (saved && saved.value) ? JSON.parse(saved.value) : null; if (favourites) { const isSavedIndex = favourites.findIndex((c) => c.id === id); if (isSavedIndex !== -1) { return true; } } return false; };
The Storage plugin provides a key-value store for simple data, while the Toast plugin provides a notification pop-up for displaying important information to a user.
The updateFavourites() function in this file takes a single argument, a Comic object, and adds it to the device storage if it doesn’t exist, or removes it from the device storage if it was already saved. getFavourites() returns the user’s saved comics, while checkFavourites() accepts a single argument, a Comic resource ID, and looks it up in the saved comics, returning true if it exists, or false otherwise.
Next, open the ComicCard.tsx file and make the following changes to allow your app’s users to save their favorite comics:
import { star, starOutline } from 'ionicons/icons'; import * as utils from '../util'; type Props = { comic: Comic; } const ComicCard: FC<Props> = (props): JSX.Element => { const { comic } = props; const [isFavourite, setIsFavourite] = useState(false); const checkFavourite = (): void => { utils.checkFavourite(comic.id).then((value: boolean) => { setIsFavourite(value); }); } useEffect(() => { checkFavourite(); }); return ( <IonCard> ... <IonCardHeader> ... </IonCardHeader> <IonCardContent> <IonButton onClick={(): void => { utils.updateFavourites(comic).finally(() => { checkFavourite(); }); }} > <IonIcon icon={(isFavourite) ? star : starOutline} color="light" /> {(isFavourite) ? 'Remove' : 'Add' } </IonButton> </IonCardContent> </IonCard> ); }
Your ComicCard component now has a IonButton component that, when clicked, calls the updateFavourites() function you wrote earlier. Remember that the function acts like a toggle, removing the comic if it was already saved, or else saving it. Don’t forget to add the imports for the new Ionic components, IonButton, IonCardContent and IonIcon, just added to this component.
Now for the final part of this step, where you will be rendering saved comics in their own page. Replace the contents of the Tab2.tsx file with the following:
import React, { useState } from 'react'; import { IonContent, IonHeader, IonPage, IonTitle, IonToolbar, IonGrid, IonRow, IonCol, useIonViewWillEnter } from '@ionic/react'; import './Tab2.css'; import { Comic } from '../interfaces/comic'; import { getFavourites } from '../util'; import ComicCard from '../components/ComicCard'; const Tab2: React.FC = () => { const [comics, setComics] = useState(null as Comic[] | null); const loadComics = (): void => { getFavourites().then((result) => { if (result) { setComics(result); } }) }; useIonViewWillEnter(() => { loadComics(); }); return ( <IonPage> <IonHeader> <IonToolbar> <IonTitle>Favourites</IonTitle> </IonToolbar> </IonHeader> <IonContent> {(comics) && ( <IonGrid> <IonRow> {comics.map((comic) => ( <IonCol key={comic.id} sizeXs="12" sizeSm="6" sizeMd="4" sizeLg="3" sizeXl="2"> <ComicCard comic={comic} /> </IonCol> ))} </IonRow> </IonGrid> )} </IonContent> </IonPage> ); }; export default Tab2;
This page is quite similar to the Tab1 page but, instead of making an API request to get comics, you are accessing locally saved data. You are also using the Ionic life cycle hook, useIonViewWillEnter(), instead of a useEffect() hook, to make a call to the function that reads saved comics and updates the component’s state. The useIonViewWillEnter() hook gets called just as the page being navigated to enters into view.
Your application now makes use of a few native plugins to improve its functionality. In the next step, you will learn how to generate a native project for Android and create a native app using Android Studio.
Note: You can delete the files related to *Tab3* and remove the import and related *IonTab* component in the *App.tsx* file.
Generating A Native Project
Ionic comes with support for cross-platform app runtimes such as Capacitor and Cordova. These frameworks help you to build and run apps developed using Ionic on a native device or emulator. For the purpose of this guide, you will be using Capacitor to generate native project files.
Before proceeding to adding a platform, you will need to generate a production build of your application. Run the following command in your project’s root directory to do so:
ionic build
Now let’s add Capacitor to your project and generate the assets required to build a native application. Capacitor provides a CLI which can be accessed in your project by using npx or from the ionic CLI as shown below:
Using npx
npx cap add android
This command adds the android platform to your project. Other possible platform values are ios and electron.
Using ionic
Since you initialized your project using the --capacitor flag earlier, Capacitor has already been initialized with your project’s information. You can proceed to adding a platform by running the following command:
ionic capacitor add android
This command will install the required dependencies for the android platform. It will also generate files required for a native Android project and copy over the assets you built earlier when running ionic build.
If you have installed Android Studio, you can now open your project in Android Studio by running:
ionic capacitor open android
Finally, build your project:
Generate an APK. (Large preview)
Conclusion
In this guide, you have learned how to develop hybrid mobile applications using Ionic Framework’s React integration. You also learned how to use Capacitor for building native apps, specifically for the Android platform. Check out the API docs as there are a lot more UI components available to be used in Ionic apps that we didn’t explore. You can find the code on GitHub.
References
(ks, ra, yk, il, og)
Website Design & SEO Delray Beach by DBL07.co
Delray Beach SEO
source http://www.scpie.org/an-introduction-to-react-with-ionic/ source https://scpie1.blogspot.com/2020/05/an-introduction-to-react-with-ionic.html
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kindle ebook creator software https://dson87423263675.tumblr.com/post/189941742262/sqribble-review-ebook-creator-for-android Satisfy inspect the Sigil Wiki for necessary Sigil help web links, added information downloads, and platform-specific trouble-shooting tips/requirements. Mac users must still download and install Active State's Active Tcl Area Edition to take advantage of plugins that utilize Tk/Tcl GUIs. Even More here . Mac users must likewise take a look at the wiki entry on the New Release Documents Format The most up to date Sigil consumer guide can easily constantly be installed from its personal repository . Web page Edit-0.9.5 is is mostly a brand new functions launch. Some of the significant new functions of the launch is the potential to pass all xhtml documents in the spinal column in Analysis Order to Web page Edit by means of opening up the OPF. Make certain to take a look at the New Features Reviews and the New Features Video clip in the downloads part of the Github launch web page.
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Allow simple data navigation by means of navigation menu and nextand previous arrowheads keys. add a Edit vs Sneak peek mode button image that are going to make it possible for web links amongst xhtmls documents in the spineto be energetic and job (in Method: Sneak peek) mounted a Qt Information user to develop a debug record data managed by means of a PAGEEDIT_DEBUG_LOGFILE atmosphere setup, to streamline consumer bug problem comments fix mac computer OS particular launch bugs because of bug in approved documents and timing of Apple activities see to it j Question is loaded just before attempting to maneuver a documents through imporving web tons series usage Acquire Atmosphere Var to consistently gain access to Atmosphere Vars in a cross system fashion turn off prev and following navigation buttons when a single input xhtml data exists For the impatient, the binary documents (and source) could be found as properties at the end of the Web Page Edit Github Release web page . The significant new functions feature the addition of Find and Spellchecking. In addition, the consumer currently can easily prepare Preferences to calculate exactly how they would such as to manage exactly how Web page Edit handles patterns of whitespace through either injecting non-breaking spaces (the default) or even establishing types to utilize white-space: pre-wap. In addition through establishing the environment variable "PAGEEDIT_ENABLE_WORD_PASTE_CLEANUP" to 1 are going to enable additional cleaning code during the course of Save that are going to take out considerably of the cruft remaining when inserting formatted message from Microsoft Phrase right into Web Page Edit. Right here is a much more full listing of the modifications: add consumer preferences to control use of white-space: pre-wrap vs nbsp chars add consumer preferences to prepare spellchecking dictionary add Spell Inspect capacity for QWeb Motor Dictionaries(. bdic changed variation of Hunspell dictionaries) add Find capacity (no replace equally in Manual Sight) make it possible for cleaning after mix from Phrase during the course of Save usingenvironment variable: PAGEEDIT_ENABLE_WORD_PASTE_CLEANUPNote: risky given that it eliminates style tags that are actually in the body system plus all xhtml remarks take out unwarranted newlines in injected consumer stylesheets and controls (Thanks Becky DTP!) actually compare source to discover all modifications correct mac computer OS particular bug that allowed various Dockwidget Main Windows to become buttons For the impatient, the installer documents (and source) could be found as properties at the bottom of the Sigil Github Release web page . fix skipping python 3 network qualifications on mac computer OS carry out not apply called entities in Preserve Entities to epub 3 epubs correct construct docs for mac computer OS prevent Flow Tab destructor race system crash when opening up a brand new book (Linux, Mac Computer, Windows) fix recommendations for built-in en_US dictionary through including "x" to the TRY listing fix plugins including and erasing ncx under epub 3 toss exception in plugins when epub 2 attempts to add or even remove the ncx fix bad Caution information concerning skipping nav.xhtml data that was not skipping fix Regulation Sight to Preview sync damage because of minimize/restore fix Regulation Sight to Preview sync damage because of seeking to fill the Sneak peek just before itfinished filling the last improve fix sigil_bs 4 to partner with newest python lxml 4.4.X in a backwards appropriate fashion fix skipping Sneak peek to Regulation Sight sync on Qt variations 5.9.X and 5.10.X fix segfault on application close associated to the Sneak peek Window improve timer firing at a bad opportunity fix Regulation Sight to Preview syncing loss dued to unwarranted tons completed signs correct mac computer OS particular bug that allowed various Main Windows to become buttons add a python 3 plugin element navprocessor.py for plugin devs show Sneak peek through default (tabified with TOC) for new setups of Sigil Know that Sigil-0.9.17 no longer enforces the need for epub 3 to possess and assist an NCX for the purposes of in reverse being compatible with epub 2 analysis systems. https://lopez46777244.tumblr.com/post/189942877684/the-best-ebook-software-creator-kindle-ebook
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The Best eBook Software Creator ebook creator app for android
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New Launch Documents Layout The latest Sigil individual guide can regularly be actually downloaded from its personal repository . PGP Finger Print Sigil-1.0.0 Github Launch web page and downloads . Web page Edit-1.0. is mainly a brand-new functions discharge to add the ability to generate hyperlinks. incorporated ability to place "i.d." attibutes into current xhtml data incorporated ability to place hyperlinks to other existing xhtml files (just when opened up along with OPF) incorporated ability to place hyperlinks to existing graphics, audio, and video recording (open when opened up along with OPF) tweaked Qt code to fix the profit after an h 6 moving insect whitespace is currently maintained in code tags The binary downloads (and resource) may be located as assets at the bottom of the Page Edit Github Launch web page . Web page Edit-0.9.6 is mainly a bug-fix release. an installer for the Windows system properly handle javascript location.href type hyperlinks make an effort to prevent accidents when files erased out from under Web page Edit fix the longest typical pathway routine to in fact work clear away the tons text filter as it was not supported collection default paragraph separator to 'p' not 'div' when editing and enhancing The binary downloads (and resource) may be located as assets at the base of the Page Edit Github Launch web page . Sigil-0.9.18 stands for a mix of brand-new functions and infection remedies. fix bug in mac Operating System that resulted in unwarranted cautions regarding skipping data in the reveal ideally fix mac Operating System bug regarding releasing files using open-with from Desktop computer see to it JQuery receives filled before starting to use Sneak peek javascript functions repair neighborhood hyperlinks during crack that improperly used intended filename for inner hyperlink generate Get Atmosphere Var to create access to environment variables more cross-platform repair mac Operating System bug when attacking close on the label pub of Key Home window inducing unusual home window behaviour ideally fix mac Operating System segfault on close through turning off Sneak peek timer quickly fix Windows 7 concerns when managing set (. baseball bat) submits through Open Externally (open along with) all mistake information are actually currently properly logged repair improperly handicapped open-with food selection in Graphic Tabs popup context food selection took out use of Qt obsolete approaches in Approximately and Inaccuracy Dialogs enable use of SIGIL_DEBUG_LOGFILE environment var to regulate saving debug outcome to a file properly upgrade the ncx after merging xhtml files properly warn customers if a several performance epub (numerous OPF files) has been actually filled create Sigil's exterior XHtml publisher work to pass an OPF data (see Web page Edit brand-new functions) Permit epub 3 metadata publisher to modify primary meta tags Replace buggy cssutils module used in plugins along with our personal drop-in substitute fork: css-parser Improved Mac, Microsoft Window, and Linux build paperwork Understand that Sigil-0.9.18 no longer applies the requirement for epub 3 to possess and support an NCX for the objectives of in reverse being compatible along with epub 2 reading systems.
ebook creator app for android https://catalan34715366.tumblr.com/post/189941861680/sqribble-review-3d-ebook-covers-and-cd-creator Please check the Sigil Wiki for necessary Sigil help hyperlinks, additional information downloads, and platform-specific trouble-shooting tips/requirements. Mac customers should still install and install Active Condition's Active Tcl Neighborhood Edition to utilize plugins that use Tk/Tcl GUIs. Additional below . Mac customers should additionally browse through the wiki entrance on the New Launch Documents Layout The latest Sigil individual guide can regularly be actually downloaded from its personal repository . Web page Edit-0.9.5 is is mainly a brand-new functions release. One of the significant brand-new functions of this release is the ability to pass all xhtml files in the vertebrae in Reading Purchase to Web page Edit through opening up the OPF. See to it to browse through the New Specs Summaries and the New Specs Video recording in the downloads section of the Github release web page.
ebook creator app for android https://docs.google.com/spreadsheets/d/17O-GVuG6cv-UVlO5w8LR0HRjhFlU_ABpmnBqfvoxJr0
Permit fast data navigation through navigation food selection and nextand previous arrowheads keys. add a Edit vs Sneak peek mode toggle symbol that will enable hyperlinks amongst xhtmls files in the spineto be actually energetic and work (in Mode: Sneak peek) mounted a Qt Notification trainer to generate a debug record data managed through a PAGEEDIT_DEBUG_LOGFILE atmosphere setting, to streamline individual insect issue comments repair mac Operating System particular launch bugs because of insect in canonical files and timing of Apple activities are sure j Question is filled before making an effort to adjust a file through imporving internet tons series usage Get Atmosphere Var to evenly gain access to Atmosphere Vars in a cross system method turn off prev and next navigation switches when a single input xhtml data exists For the impatient, the binary files (and resource) may be located as assets at the base of the Page Edit Github Launch web page . The significant brand-new functions feature the add-on of Find and Spellchecking. Furthermore, the individual currently can prepare Preferences to find out just how they want to handle just how Web page Edit deals with patterns of whitespace through either injecting non-breaking rooms (the default) or establishing types to use white-space: pre-wap. Furthermore through establishing the environment variable "PAGEEDIT_ENABLE_WORD_PASTE_CLEANUP" to 1 will enable extra clean-up code during Save that will clear away a lot of the cruft leftover when mixing formatted text from Microsoft Term into Page Edit. Here is an even more complete listing of the changes: add individual choices to regulate use of white-space: pre-wrap vs nbsp chars add individual choices to prepare spellchecking thesaurus add Incantation Checking capability for QWeb Engine Dictionaries(. bdic tweaked model of Hunspell dictionaries) add Find capability (no replace just like in Book Sight) enable clean-up after mix from Term during Save usingenvironment variable: PAGEEDIT_ENABLE_WORD_PASTE_CLEANUPNote: unsafe due to the fact that it eliminates type tags that remain in the body system plus all xhtml opinions clear away unwarranted newlines in infused individual stylesheets and managements (Thanks Becky DTP!) in fact match up resource to recognize all changes fix mac Operating System particular insect that enabled numerous Dockwidget Key Windows to end up being tabs For the impatient, the installer files (and resource) may be located as assets at the bottom of the Sigil Github Launch web page . repair skipping python 3 network licenses on mac Operating System do not administer named entities in Preserve Entities to epub 3 epubs fix build doctors for mac Operating System prevent Flow Button destructor ethnicity system crash when opening up a brand-new book (Linux, Mac, Windows) repair pointers for built-in en_US thesaurus through adding "x" to the GO listing repair plugins adding and removing ncx under epub 3 toss exception in plugins when epub 2 tries to add or remove the ncx repair bad Alert notification regarding skipping nav.xhtml data that was not skipping repair Regulation Sight to Preview sync breakage because of minimize/restore repair Regulation Sight to Preview sync breakage because of seeking to fill the Sneak peek before itfinished filling the last upgrade repair sigil_bs 4 to team up with latest python lxml 4.4.X in a backwards compatible method repair skipping Sneak peek to Regulation Sight sync on Qt models 5.9.X and 5.10.X repair segfault on application close pertaining to the Sneak peek Home window upgrade timer shooting at a hard time repair Regulation Sight to Preview syncing loss brought on by unwarranted tons ended up signals fix mac Operating System particular insect that enabled numerous Key Windows to end up being tabs add a python 3 plugin module navprocessor.py for plugin devs show Sneak peek through default (tabified along with TOC) for brand-new installments of Sigil Understand that Sigil-0.9.17 no longer applies the requirement for epub 3 to possess and support an NCX for the objectives of in reverse being compatible along with epub 2 reading systems. https://ramirez47260114.tumblr.com/post/189942825519/the-best-ebook-software-creator-ebook-creator-apk
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Google lays down the law on notches so OEMs can’t screw them up
Google lays down the law on notches so OEMs can’t screw them up
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Google has produced some guidelines to help manufacturers develop notched smartphones.
The company has also given app creators Android SDK tools to help them develop for notches of various sizes and locations.
The guidelines appear in the Android P Dev Preview 5 and are expected to be part of the final version of the software.
Google has rolled out guidelines to help OEMs and app…
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Google lays down the law on notches so OEMs can’t screw them up
Google lays down the law on notches so OEMs can’t screw them up
Google has produced some guidelines to help manufacturers develop notched smartphones.
The company has also given app creators Android SDK tools to help them develop for notches of various sizes and locations.
The guidelines appear in the Android P Dev Preview 5 and are expected to be part of the final version of the software.
Google has rolled out guidelines to help OEMs and app creators…
View On WordPress
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