#ios app evelopment
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cybtekk · 1 year ago
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App Design and Development Services | Android | IOS
In today's mobile-driven world, a mobile app has become a powerful tool for businesses. It enables direct customer engagement, enhances brand visibility, boosts customer loyalty, and opens new revenue streams. With our well-designed and feature-rich mobile app services, you can stay connected with your audience anytime, anywhere, and offer a seamless user experience.
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whyte-creations · 4 years ago
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Based in Qatar since 2011, Whyte Creations offers premium services in Advertising, Web Design & Development, Graphic Design, Corporate Branding, Mobile Application Development, Internet Marketing & SEO, 3D Visualization, Corporate gifts, Event Management, Videography, Photography & Media Solutions.
For More Details:
Website: https://www.whytecreations.com/web-design-company-in-qatar
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digitalmarketernoida · 5 years ago
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Hire Us For Your Mobile Apps-We are the Best One
What GRENO MARK INDIA Do as a best Mobile App evelopment Company in Noida?
Greno Mark India is one of the best mobile app development company in Noida having R&D unit in the USA. We understand and transform your requirement into thoughtful, user-centric and fully fledged mobile apps which would be loved by intended customers. Check out our mobile apps development services.
We are best in different mobile technologies:-
Android Apps Development:-Greno Mark India provides full-fledged Android app development solution for your business ideas using latest Android technologies across multiple operating systems. As one of the top android apps development companies in India, we have developed numerous Android apps using the best technologies in the industry. We are fortunate to have such an experienced & awesome team they breath coding. We have developed applications ranging from location based apps using GPS to OCR to payment gateway integration & much more.
Ios Apps Devlopment:- GRENO MARK INDIA is an expert iOS/iPhone application development company in Noida.We are an end-to-end iOS application development company with an impeccable record for the delivering the agreed projects in time. We closely follow the Apple world for design and development trends and we apply our learnings to make sure our clients get the best. We offer services that include iOS specific UI/UX designs, REST API powered backend integrations, admin portal development and even consulting clients on Appstore guidelines for deployment.
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SDK & Backend Development:- Backend is what powers the most of mobile and web applications with useful data. For Backend development, we make use of Python, PHP and Node.js majorly to design for scalability and flexibility in supporting additional business use cases. We are proficient in making use of cloud services like Amazon AWS and Microsoft Azure and have helped clients with solutions like Docker and Kubernetes to make the deployments easy to maintain. If you are looking for serverless backend development, we can help you with amazon lambda and microservices as well.
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incubersvinita · 4 years ago
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TechsBiz IT Team is a small group of highly-skilled and experienced UI/UX Designers, Graphic Art Designers, Website Designers, Web Application Developers, iOS App evelopers, Android App Developers, Microsoft App Developers, Search Engine Marketers, Search Engine Optimizers, Social Media Marketing Experts, and Cloud Consultants.
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shivtechnolabs · 5 years ago
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Get Here Best Mobile App Development Services By Shiv Technolabs
Shiv Technolabs Pvt Ltd provides the best mobile app development services that convenient to your business needs, including enterprise-grade mobile apps for iOS and Android, and also offers end-to-end iOS & Android app development services for startups. We are prominent in android apps development, react native app development services, flutter app development, and iOS app development service at an affordable rate.
We will offer high-quality trendy mobile and android apps for any industry. We also collaborated on the creation of influential applications from a number of brands, organizations, start-ups, and individuals.
Visit our website to know more https://shivlab.com/mobile-application-development.
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pradaxdior · 6 years ago
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Main Advantages of Hiring A Custom App Developer Consultancy Firm
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Around two million mobile apps were accessible in both Google Play and Apple App stores starting at July to September 2018. Be that as it may, in an inexorably soaked app advertise, you'll need to emerge from the remainder of the challenge to make it out alive.
On the off chance that you make due with an instant mobile app for your business, you may in the long run lament the said choice, particularly on the off chance that it sometimes falls short for your needs just as those of your objective clients. You'll along these lines need a custom app.
Advantages Of Hiring a Custom App Developer Consultancy
As opposed to making sense of how to make your custom programming without anyone else, you should need to consider the accompanying preferences that enlisting an app manufacturer can bring to your business.
1. A custom app developer can set aside you time and cash.
You may at first feel that building a custom mobile app for your business without anyone else's input is quicker and less expensive. Yet, here are some rough approximations to consider upon that can cause you to stop creating it before you even began:
A standard app coded utilizing either Java or Objective C for Android and iOS mobile working frameworks, separately, takes around 18 weeks to assemble and discharge.
A standard app can take as long as 300 hours to make while a very multifaceted one can devour over 900 hours of development time.
A little measured app costs $3,000 to $8,000 to create while production of an unpredictable one can set you back $50,000 to $150,000.
You in all probability don't have 18 weeks, 300 hours, and $3,000 to construct a custom app, most particularly if your plate is now full with different activities like gathering with customers, supervising your business tasks, going to talking commitment, thus considerably more.
Rather than attempting to blindly go for it solo, you can contract a custom app manufacturer rather and let them do the filthy work of building up your bespoke mobile programming for you so you can concentrate on every single other part of your business.
2. A custom app developer can give your mobile programming tailor-fit answers for location every one of your information security needs.
Instead of construct a mobile app without any preparation, you may have picked to utilize one that is as of now accessible for you and your objective clients to download and introduce. Yet, since you know nothing about the organization that is created it, they probably won't have added any security highlights to it, along these lines putting any touchy data about its clients in danger.
For example, in the event that you chose to make due with an outsider shopping app, its designers probably won't have incorporated an alternative to veil the client's charge card data. A programmer may snoop at any of its clients entering their charge card information in it while in an open spot.
They probably won't see that somebody is stalking at their telephone while they're utilizing the said app. The programmer may then endeavor to enter the unfortunate casualty's charge card data in their duplicate of the equivalent app and make various buys. The awful unfortunate casualty may just understand that their charge card data was undermined after they get a few bundles at their doorstep that they didn't structure.
Then again, in the event that you employ an engineer to fabricate a custom shopping app for your business, they can incorporate highlights that cover its clients' Mastercard data just as secret word and contact subtleties as a major aspect of its security highlights. Your procured designer can even increase the security of your custom app further by giving its clients a chance to sign in utilizing just their fingerprints or a particular letter and number mix unique in relation to their secret word.
3. A custom app developer can give you introductory help even after they've wrapped up your mobile programming.
When you make due with an instant mobile app, there's no telling if its engineer still offers customer support for it, particularly on the off chance that they've officially stopped it.
However, when you let a custom app developer make unique mobile programming for your business, they can give outside customer backing to you and its clients as a feature of rendering their administrations to you – in any event at first. They can likewise prepare a portion of your staff to deal with the absolute most regular investigating demands that your custom app would get until such time that you would already be able to construct a customer administration group of your own for it.
Conclusion
In 2016, near three out of each four ventures have manufactured custom mobile apps which underlines the requirement for your business to have one too. Yet, in the event that you attempt to make a mobile app independent from anyone else in spite of having next to no information about it, you remain to put out an item that may miss the mark regarding your desires.
That is the reason you should need to benefit of the administrations of a developer working for a custom app development organization rather, particularly in the wake of remembering the above-recorded focal points of contracting one to make a conceivably fruitful item that can move your business towards monetary benefit.
For more mobile app related news, you can head over this website for the latest and most updated trends.
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alexcarson912 · 6 years ago
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Top Mobile App Development Trends To Keep an Eye On In 2019
The year 2018 draws to a close and 2019 looms on the horizon. Will the New Year bring something new and radical or will we be seeing just incremental advances in mobile app development? Here are a few mobile app development trends worth keeping on your radar.
Instant Applications and Progressive Web Apps to Gain Traction
It would not be an understatement to say that mobile users are fed up of installing apps, be disappointed and then trash it. 2019 holds something better for every android user. The concept is nothing new. It is being implemented but instant apps Mobile App Development could shift gears. Users can heave a sigh of relief. Now they can access apps in browsers and use it without downloading. Progressive apps make it even better. Once launched in the browser you can switch off internet and they will still work. Progressive web apps are even better in that they will work with slow speed internet and low specced devices. However, instant apps are better for playing games so both will run on twin tracks. So what will mobile phone users do with all that whopping storage space that new mobiles are being equipped with by their makers? That is another story.
IoTistic Mobile App Development
Iot is here and it is growing in numbers. We already have Amazon’s Echo and Google’s Home Brand as being symbolic of things to come in the Mobile- IoT combine. The possibilities of sensors driving mobile application development and mobile app developers fine honing IoT integration skills will make it a more connected world, possibly with Orwellian echoes.
Wearables
Wearables will be on the rise, further deepening the Orwellian apprehensions and big brother always watching if governments should choose to use wearables tech to keep track of all citizens or employers outfit employees with trackable wearables. Anyway, the brighter side of wearables is that doctors can better monitor patient health and render timely assistance and service providers can know whereabouts of employees and optimize their movements, such as in courier or food delivery.
Cross-Platform Apps
Google and Apple have always locked horns in the matter of safeguarding their app ecosystem much to the woe of users and enterprises that wish to build and deploy apps. They must build an app for iOS and another for Android or a hybrid one that has its own glitches. Would it not be nice if mobile app developers could come up with one app that works on both platforms? It is good and heartening to know that they are indeed going the cross platform way. It is not because they have developed a sudden fondness for users. It is the insistence of companies that wish to retain fickle customers who keep jumping ship all the time. Whatever the reason, it is all to the good.
Augmented Reality
It is AR and not VR that is likely to forge ahead in 2019 and beyond given that augmented reality has practical uses. Apple has shown just how serious it is by releasing a new ARKit platform. Google has followed suit with its ARCore. AR makes shopping fun as IKEA has shown but it will many different real world uses and that is what will spur mobile app developers to give AR a thrust, aided by AI and ML.
AI and ML
Smartphones are supposed to be smart but till now they are just not that smart enough to deserve the label. This could, hopefully, change as mobile app developers with expertise in machine learning and AI find ways to make apps smarter. A phone, could, for example, sense its owner’s mood or even health when it has a measure of AI. If it has that capability, then the phone naturally will have apps that recognize commands and carry out actions or are even smart enough to talk back and advise their owners.
Chatbots Get Smarter
AI will have a great influence and one area where it will show is in chatbots. We see them as nasty intrusions on websites. Ask them a question and you are likely to find out just how dumb it is. AI infusion into chatbots by capable mobile app developers will make them smarter and well, almost human in responses.
AMP it up
AMP has nothing to do with audio. In mobile tech world it means application performance management, integrated in Google search engines in 2016 and well up to speed. It should take off in 2019 to deliver faster and better user experience. Couple that with 5G becoming commonplace and one may expect instantaneous page loads. Let’s hope it is not a pipe dream.
2019 is an exciting time for mobile app developers with capabilities of advanced development incorporating IoT, AI and ML. This is what companies will want and the right developers will prove immensely useful.
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maxtratechnologies · 6 years ago
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Mobile Development Services | App Development Services
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Mobile Development Services - We, Maxtra Technologies provide innovative mobile app solutions to expand your business. We specialize in apps for iOS and Android at the affordable budget.
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cybtekk · 1 year ago
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When creating mobile apps, the Android operating system is the main focus of all mobile app development. The Android app development solution is evolving to include the newest trends and technology in response to the rising demand for goods and services.
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thewebdevelopmentcompany · 5 years ago
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Hire IOS App Development San Diego - AIS Technolabs
AIS Technology offers a wide assortment of android and Best iOS App Development San Diego. Recruit our Dedicated app designer that transform your thoughts into the real world.
 For more go to: https://www.aistechnolabs.com/app-development-san-diego/
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riichardwilson · 5 years ago
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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://scpie.tumblr.com/post/617303473044799488
0 notes
scpie · 5 years ago
Text
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/
0 notes
laurelkrugerr · 5 years ago
Text
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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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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androidmaniaco · 5 years ago
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China contra Google: 5 desafíos clave en el futuro de Android
China contra Google: 5 desafíos clave en el futuro de Android
Durante esta mañana pudimos contaros una de las noticias más importantes del año, como es la alianza entre Huawei, Xiaomi y Oppo para construir un ecosistema de software común. Esta noticia ha causado mucho ruido, ya que se trata de tres de los cinco mayores fabricantes a nivel mundial, junto a Apple y Samsung.
Durante años hemos vivido con un duopolio del Android de Google, con sus capas de personalización, y iOS. Esta alianza rompería esta posición dominante de estados unidos, formando la primera alternativa real de un Android sin Google, una situación como la que ya existía en China, pero a nivel global.
Un movimiento tan ambicioso genera muchas dudas, y plantea múltiples escenarios posibles que podrían decidir el futuro de Android tal y como lo conocemos.
¿Será abierta a todo el mundo la alianza de China contra Google?
Tal y como afirmó Reuters, la asociación entre Huawei, Xiaomi y Oppo sería conocida como Global Developer Service Alliance. Esta asociación tendría como objetivo crear un ecosistema en varios mercados fuera de China, donde convencerían a desarrolladores para publicar sus aplicaciones en un ecosistema no controlado por Google.
Aunque no conocemos detalles sobre la plataforma (a fin de cuentas, el lanzamiento parece estar planificado para marzo), si que encontramos el primer desafío clave de China para convencer a los desarrolladores.
Huawei, Xiaomi, Vivo y OPPO se unen para enfrentarse a Google
La situación actual entre Huawei y Google ha llevado a esta firma a unierse a Xiaomi, Vivo y OPPO para enfrentarse a Google.
La traducción literal sería Alianza global de servicios para desarrolladores, palabras que si estas compañías deciden cumplir al pie de la letra tiene muy buena pinta. Con ese nombre nos deberíamos esperar:
Una plataforma que ayude a desarrolladores con herramientas de creación y distribución.
Alianza: Unión de cosas que concurren a un mismo fin.
Global: aquí habría que discutir si por global es que aceptarían a cualquier miembro en la alianza o si simplemente persiguen un ámbito global. La primera es más razonable, ya que cualquier aliado es bien recibido en semejante empresa.
¿Puede Google vetar a quien apoye esta alianza?
La situación de Google para bloquear a esta alianza parece muy complicada. Cuando Huawei decidió montárselo por su cuenta nadie vio un conflicto, pero Oppo y Huawei siguen utilizando la Play Store. ¿Puede Google forzar a cualquier miembro de la alianza dejándole sin servicios de Google Play?
Se trata de una situación muy compleja, y es que en un primer momento no parece que Google pueda obligar a otro fabricante a que incluya aplicaciones que representen una competencia directa. El mejor ejemplo es Samsung, compañía que tiene su propia tienda de aplicaciones de Google Play, servicios para desarrolladores propios (como el kit de desarrollo para aprovechar el SPen de los Galaxy Note) y aplicaciones que son competencia directa de Google (como la Suite de Microsoft).
Google no puede vetar con tanta libertad ni a Samsung, ni a Xiaomi, ni a Oppo. Es cierto que Google tiene el control absoluto de Android, pero finalmente son los grandes fabricantes quienes sustentan los pilares del éxito de Android. Sin Samsung ni las marcas chinas, Android tendría un 11% de cuota de mercado.
El desafío de la tienda de apps y el monopolio estadounidense
Donde si que podría apretar Google es en los desarrolladores, los cuales son el corazón de Google Play.
Y lo cierto es que Google ha estrechado muchos lazos con aquellos que hacen aplicaciones para la Play Store. Durante años han añadido un gran conjunto de herramientas que hacen que crear una aplicación avanzada sea mucho más fácil, pero a su vez hace que estas aplicaciones sean dependientes de los servicios de Google Play.
Este será el gran reto para la GDSA, el crear unas herramientas que faciliten los recursos para desarrolladores al mismo nivel de Google para que puedan crear sus aplicaciones para ambas plataformas sin tener que diseñar dos versiones específicas.
Una oportunidad para aquellos que fueron derribados por Google
Otro aspecto en la batalla por los desarrolladores está en el aspecto monetario, y es que durante los últimos años ha habido mucha crítica hacia los sistemas de gestión de la Play Store, siendo el más destacado la tasa que Google impone a los desarrolladores, quedándose un 30% de los ingresos de cada aplicación.
Google en este aspecto ha comenzado ya a hacer presión, y es que en el último ejercicio trimestral anunciaron que habían repartido 80.000 millones de dólares a los desarrolladores. Lejos de celebrar un hito, parece una forma de recordarle a estos gracias a quien están recibiendo dinero.
Pero del mismo modo que Google reparte dinero entre los usuarios, también castiga a otros desarrolladores. Las aplicaciones de Google son tan buenas, geniales, y excelentes que cualquier desarrollador que sea competencia de estos juega en desventaja. Aplicaciones como Gmail o Google Maps son el ejemplo perfecto.
El nuevo frente abierto puede suponer una oportunidad para desarrolladores que busquen mejores condiciones en sus facturas o que quieran un ecosistema que en el que el propietario compite contra ti. Por ejemplo, la alianza de TomTom para crear los mapas de Huawei.
Huawei creará su alternativa a Google Maps con la ayuda de Tom Tom
Huawei ha firmado un acuerdo con la alemana Tom Tom para crear una aplicación de mapas que sirva como alternativa a Google Maps.
La lucha de China contra Google puede beneficiar a todos los demás
Por mucho que Android se vea amenazada, el futuro puede ser positivo para aquellos que no parecían tener grandes esperanzas. A fin de cuentas debemos considerar que la competencia siempre va a beneficiar a los usuarios.
Something exciting is just around the corner. See you at Unpacked, @SamsungMobile: https://t.co/FU3iJCnf77 pic.twitter.com/M9pGlfRQ26
— Android (@Android) February 6, 2020
Google ha pasado varios años en una posición privilegiada con Android, siendo, como dijo mi compañero Fernando, «un dictador benevolente». Pero a fin de cuentas, un dictador.
Quizás, incluso si esta alianza representa una amenaza real, termine siendo positivo para las marcas que tienen que seguir todas las directrices de Google. Quizás ahora acceder a los servicios móviles de Google no exija que tengamos que tener apps repetidas en el móvil, o quizás permita que los desarrolladores puedan obtener mejores beneficios.
Esta situación es una oportunidad para que Google se plantee su relación con todos los que mantienen su status quo.
El día que Huawei pudo liberar Android de Google y no quiso
Con la pérdida del acceso a los servicios de Google, Huawei ha tenido la oportunidad de liberar a Android, pero finalmente no ha querido.
La entrada China contra Google: 5 desafíos clave en el futuro de Android aparece primero en El Androide Libre.
El Androide Libre https://ift.tt/37510cT
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The All You Need to Know About the Plus and Minus of Xamarin
Even though it's a human or any other living being, a thing or a technology, everything has its own pros and cons, likewise the trendiest ongoing native app development platform also has multiple numbers of pros and cons, which are described as below.
List out the Pluses of the Xamarin App Development
Reuse and sharing of a once created code
Xamarin is the firstmost multi-platform app development environment that was introduced in the web app development industry of about 5 years back along with the most enticing and time savvy facility for the developer's group. As now with the presence of the Xamarin technology the developer's community is now granted to share, reuse and compile the same code in the other app development stage they once created.
Xamarin Provides the full technical Support
Likewise, the widest range of well-doing web app development technology platforms the Xamarin framework is also believing to provide the complete technical support by being working under the Microsoft tech platform.
Lesser time and cost requirements
Just due to the facility of reuse of the code, the Xamarin becomes the technology which requires lesser time and the lowest possible cost in the development of a properly built and multi-functional business mobile application. While the other app development platforms need much time and capital investment for the creation of an application as compared to Xamarin technology.
Enhance business performance and easy to integrate
With having the application developed under Xamarin technology, a business empire of every status itself becomes the witness of its awesome growth by providing the amazing user experience to the app users. Also, an app developed using the Xamarin technology can be easily integrated into the business.
Know all the crest and troughs of your business
The Xamarin app development platform has come along with an in-built analytics a feature through which a business individual can easily optimize all the ups, downs, and revenue of their business.
Code Maintenance
As the Xamarin tech stage allows the developers to share the code in other apps than it requires to write the code in a proper manner. Hence this technology supports the code maintenance feature so that a similar code be easily implemented on the different app development platforms.
List out the Minus of the Xamarin App Development
Platform-specific nature
Definitely the Xamarin is a multi-platform app development environment that is on the other side behaving like a platform-specific too. As it creates platform limitations for the app development for both iOS and Android:
Limitations for Xamarin iOS
A few amounts of generic support
Did not allow remote work
Disabled runtime features
Did not allow dynamic code integration
Limitations for Xamarin Android
Limited language support
Limited access and support for Java components
Did not support game development
These days the development of gaming applications is getting high claps in the entertainment industry there a lot of business individuals are looking to try their luck in the gaming industry but still, the Xamarin App Development Technology did not allow a facility to the development of a gaming application.
So, after having a list of few minus points still, the Xamarin technology has a bright future?
With the multiple numbers of plus points, along with all its flaws and limitations, the Xamarin is considered as a robust and highly productive app development platform, which also has a strong and powerful update and baking support which helps the developers to build a classy application with some elegant looks and multiple advanced features.
Hire Affordable Xamarin Developer from our firm and leverage our services towards the empowering of your business with the development of a cross-platform application under the Xamatin tech stage.
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aistechnolabs1234-blog · 6 years ago
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iOS 10 app developer – Hire iOS 10 Developer
Looking for iOS 10 Development for your new app? Hire our iOS 10 App Developer at a most reasonable rate and get most cost-effective work.
 For more info:
https://www.aistechnolabs.com/ios-10-app-development/
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