#sharedpreferences

[sruthypm]

Flutter Coaching Classes Near Me – Learn App Development with Techmindz

In the fast-growing world of mobile app development, Flutter has emerged as one of the most powerful frameworks for building cross-platform applications. Whether you’re a student, job seeker, or working professional looking to switch into app development, searching for Flutter coaching classes near me leads to one standout choice in Kerala — Techmindz.

Why Learn Flutter?

Flutter, developed by Google, allows you to build beautiful and fast apps for both Android and iOS using a single codebase. It’s open-source, in high demand, and backed by a strong developer community. Some major benefits include:

Faster development with hot reload

Native performance

Flexible and expressive UI designs

Excellent career opportunities in mobile development

Techmindz – The Ideal Choice for Flutter Coaching Classes Near You

Located in Infopark, Kochi, and offering both offline and online training, Techmindz is a trusted training institute known for real-world learning and career-building programs.

What You’ll Learn in Techmindz’s Flutter Coaching Program

The Flutter course at Techmindz is designed to take you from beginner to job-ready developer. Topics include:

Dart programming basics

Flutter widgets and UI design

State management (Provider, BLoC)

Navigation and routing

Integration with REST APIs & Firebase

Local storage (SQLite, SharedPreferences)

Real-time project development and app deployment

Key Features of Our Coaching Classes

✅ Hands-On Training

We focus on project-based learning so you can apply every concept by building real applications.

✅ Experienced Instructors

Learn from professional mobile developers with years of experience in Flutter and real-time project exposure.

✅ Live Projects & Portfolio Building

By the end of the course, you’ll build and deploy apps — ideal for showcasing to recruiters.

✅ Placement Assistance

Techmindz provides resume reviews, mock interviews, and connects students with hiring partners across Kerala and beyond.

✅ Flexible Batches

We offer both classroom-based sessions in Kochi and live interactive online classes, making it easy for you to find “Flutter coaching classes near me” — no matter where you are.

Conclusion

If you're searching for Flutter coaching classes near me, Techmindz offers the perfect blend of practical learning, expert mentoring, and career support. Whether you want to build your first app or transition into mobile development, our training will give you the tools and confidence to succeed.

Get started today with Techmindz — where your Flutter development journey begins!

https://www.techmindz.com/flutter-training/

[devnews]

How to Implement Preferences DataStore for Compose Multiplatform Mobile (Android and iOS)

What is Preferences Data Store?Preferences DataStore is a modern way to store small amounts of key-value data in Android, replacing SharedPreferences. It is more efficient because it uses Kotlin Flow for async data handling and ensures data consistency. By the end of this guide, you’ll have a working DataStore setup that allows you to store and retrieve key-value preferences across both…

[rakeshmahale]

Boost Your Flutter App’s Speed and Performance like a Pro

Flutter has gained immense popularity as one of the best frameworks for developing high-performance mobile applications. However, to ensure your Flutter app runs seamlessly, optimizing its speed and performance is crucial. Whether you’re a developer or a business owner, learning these expert strategies will help you deliver a top-notch user experience.

Why App Performance Matters

A slow app can drive users away, impact revenue and harm brand reputation. Users expect a smooth, fast and lag-free experience. Optimizing your Flutter app ensures quick load times, efficient resource utilization and better user retention rates.

Pro Tips to Enhance Your Flutter App’s Performance

1. Use the Latest Flutter Version:

Flutter is constantly evolving with performance enhancements and bug fixes. Ensure you are using the latest version to take advantage of new optimizations and features.

2. Minimize Widget Rebuilds:

Widgets are the core building blocks of Flutter apps. Excessive widget rebuilds can slow down performance. Use the const keyword for immutable widgets and implement the shouldRebuild method in ListView and GridView to avoid unnecessary builds.

3. Optimize Images and Assets:

Large image files can significantly impact your app’s speed. Optimize images by:

Using appropriate formats (WebP for high compression)

Compressing assets with tools like TinyPNG

Lazy loading images to reduce memory usage

4. Utilize Efficient State Management:

Efficient state management prevents unnecessary UI updates, improving performance. Popular state management solutions include:

Provider

Riverpod

Bloc

GetX

Choose the right approach based on your app’s complexity.

5. Reduce App Size:

A lightweight app loads faster and runs smoothly. Reduce your Flutter app size by:

Removing unused dependencies

Using ProGuard to shrink and optimize the APK/IPA file

Enabling code splitting for web applications

6. Optimize Network Requests:

Minimize API calls and implement caching mechanisms to enhance app responsiveness. You can use:

Dio for efficient HTTP requests

GraphQL for selective data fetching

SharedPreferences for local caching

7. Use Isolates for Heavy Computations:

Isolates allow Flutter to handle CPU-intensive tasks without blocking the main thread. Use them for background processing like file operations, image processing or real-time analytics.

8. Leverage Flutter’s Performance Tools:

Flutter provides built-in debugging and profiling tools to analyze app performance. Use:

Flutter DevTools for frame analysis and memory usage

flutter analyze for detecting inefficiencies

flutter doctor to identify potential issues

9. Enable Hardware Acceleration:

Enable Skia Shader Warm-up and leverage GPU acceleration to enhance UI rendering speed. This helps create smooth animations and transitions.

10. Test and Optimize Regularly:

Performance optimization is an ongoing process. Regularly test your app using:

Flutter Driver for automated testing

Firebase Performance Monitoring for real-time performance insights

Crashlytics to track and fix issues

Flutter App Development Services in India

India has become a hub for high-quality and cost-effective flutter app development services. Companies like Dignizant Technologies offer top-tier Flutter development solutions, ensuring seamless performance optimization, user-friendly interfaces and scalability.

Why Choose the Best Flutter App Development Company?

Expert Developers: Skilled professionals with years of experience in Flutter development.

Custom Solutions: Tailor-made apps to meet specific business requirements.

Cost-Effective Development: High-quality apps at competitive prices.

Timely Delivery: Agile development approach for faster time-to-market.

Conclusion

Optimizing the performance of your Flutter app makes the user experience seamless, increases engagement and improves retention. Whether you are developing a new app or improving an existing one, implementing these strategies will give you a competitive advantage. If you are looking for professional Flutter app development services in India, partnering with the best Flutter app development company like Dignizant Technologies can help you build high-performing apps tailored to your business needs.

FAQs

Q1. How do I improve the performance of my Flutter app?

A1. Optimize widget rebuilds, minimize network requests, use efficient state management and leverage Flutter’s performance tools for better speed and responsiveness.

Q2. Why is my Flutter app running slow?

A2. Common reasons include excessive widget rebuilds, large image files, inefficient network requests and lack of background processing. Implementing the right optimizations can significantly improve performance.

Q3. What is the best way to manage state in Flutter?

A3. There is no one-size-fits-all answer. Provider, Riverpod, Bloc and GetX are popular state management solutions, each suited for different app complexities.

Q4. How can I reduce my Flutter app size?

A4. Remove unused dependencies, compress assets, enable ProGuard and use code splitting techniques to reduce the APK/IPA size.

Q5. Which is the best Flutter app development company in India?

A5. Dignizant Technologies is a leading Flutter app development company in India, offering high-performance, scalable and feature-rich applications.

[intellisourcetechnology]

Must-Know Tips for Achieving Greater Android App Performance

In Android application development it is highly important for the responsiveness of the application. Intensive programs slow the machine down and even when they respond their response time is slow, which contributes to high uninstall rates and user turnover.

Hence, it is crucial to know how to enhance Android App performance. For instance, if you are an Android development expert, or you contracted Android App Development Company Florida, it is crucial to learn more about the appropriate measures of boosting the application’s performance.

Optimize Layouts and Views

Among the significant factors influencing the performance of the Android application, are the optimized layouts and views in the first place. Complicated designs always result in more time taken to load a page than simple ones given the low-capable devices present in the market today.

In order to highly optimize layouts one should not nest layouts unless it is extremely necessary. Still, you are recommended to use ConstraintLayout and RelativeLayout as these layouts help to minimize the view hierarchy depth and, consequently, maximize performance.

Efficient Resource Management

This paper seeks to establish that, resource management is a critical factor that defines Android App Performance. When an app has high resource utilization it implies that your CPU, memory, or battery will be consumed thus the performance will drop, battery will drain faster.

Because the background processes and services consume battery life and if not managed properly might cause the app to become unresponsive, limit the background processes and services that your app launches. Use Android’s JobScheduler/ WorkManager to handle background operations more efficiently.

Implement Lazy Loading

This is a method of loading images or processes which where they are only loaded when required. The immediate loading of all data causes a greater load on system resources, hence, by only loading content as the user scrolls, utilizes system resources sparingly making the app more responsive with less initial loading time.

For instance, when using list view instead of loading the entire list it is possible to load only the current list and other lists as the user scrolls through the list.

Minimize Main Thread Operations

The thread that truly is in charge of the application, or the 'main thread,' is responsible for processing anything having to do with the user interface and updating view elements. If many heavy requests (network requests, complex mathematical calculations, and big file processing) are initiated in the main thread, the app hangs or freezes.

, AsyncTask, HandlerThread, and modern Kotlin Coroutines are some of the ways that can be used to perform other tasks in the background while making the UI thread remain unblocked.

Leverage Caching

Here, it is also important to take a look at Caching as an important measure of enhancing the performance of Android apps. Since the data that is frequently used can be temporarily stored in it, there are less frequent requests for the network or database.

Use DiskLruCache, SharedPreferences, or SQLite for data caching locally, although it is recommended that you combine DiskLruCache and SharedPreferences or SQLite. This not only increases the object's loading and speed but also decreases the probability of network traffic saturation.

For images, there are libraries called Glide and Picasso that will actually cache images so that the time is also saved on getting images from the network.

Optimize Network Requests

Network requests are one of the most troublesome sources of performance problems in the case of apps employing them. Another way is to think about how to decrease the number of requests sent to minimize the impact of the network latency By combining a number of requests to 'batch', or using a multiplexed TCP connection such as HTTP/2.

When it comes to such requests as network, the reader is advised to use Retrofit or OkHttp for request handling and you can also try using GZIP for the size of data.

Monitor and Reduce App Startup Time

The time taken by an application to start is among the few crucial factors that define user satisfaction. Long startup times also mean that users are discouraged from even launching your application in the first place. To enhance the Android App Performance, one should aim at reducing the work that is to be done during the initialization phase.

This means that one can delay certain operations until the time when the essential elements have been loaded to the app's main screen. To manage time in loading only the most important components and do it with the help of Android's Startup Library.

Reduce APK Size

The size of your app is heavily important because a bigger size may affect the download and installation time and after that the loading time of the overall application. This is important to the user who’ll be downloading the APK on slow networks or limited space on their devices.

There are three ways of reducing APK size these include, elimination of any resource that is not wanted, optimization of images, and finally shrinking and obfuscation of the code through the use of Proguard or R8.

Adopt Modern Android Development Tools

If the Android App Performance has to be optimized then techniques of modern development tools available help in doing this job much more efficiently. There are several other tools available that can be used to monitor the real time performances of an Android application.

These include the Android Profiler and LeakCanary for memory, CPU, and other usage metrics. They assist you to diagnose and eliminate performance issues promptly. You can also check top app development platform.

Regularly Test and Monitor Performance

Last but not least often it is pertinent to examine and assess Android App Performance on a frequent basis in the Development Cycle. Firebase has features such as Performance Monitoring, through which you can monitor how the application performs on real devices. Especially when the network connection is slow or non-existent and the device is not fully capable of meeting your application demands.

Android App Performance Optimization is one of the most important factors that dictate how an app will perform in order to enhance the interactive lifestyle of the user. If you follow the above guidelines — getting layouts right, managing resources to adopting the use of brand-new development tools, your app will perform well.

For any firm that is interested in enhancing the performance of the app, or any organization that requires the services, it is advisable to hire the services of the best Android App Development Company Florida.

[codezup]

Android Data Storage: A Comprehensive Guide to Using Room, SharedPreferences, and More

Introduction Android Data Storage: A Comprehensive Guide to Using Room, SharedPreferences, and More is a crucial aspect of building robust and efficient Android applications. In this tutorial, we will delve into the world of Android data storage, exploring the best practices, common pitfalls, and hands-on implementation of Room, SharedPreferences, and other essential tools. What Readers Will…

[zerosecurity]

LianSpy: New Android Spyware Targeting Russian Users

Cybersecurity researchers at Kaspersky have uncovered a previously unknown Android spyware called LianSpy. This sophisticated malware has been actively targeting Russian users since July 2021. LianSpy's primary functions include capturing screencasts, exfiltrating user files, and harvesting call logs and app lists.

Evasion Techniques

LianSpy employs various evasion techniques to avoid detection: - Using Yandex Disk, a Russian cloud service, for command and control (C2) communications - Avoiding dedicated infrastructure to remain undetected - Disguising itself as a legitimate app like Alipay or system services - Bypassing Android 12's privacy indicators by modifying settings - Hiding notifications from background services - Suppressing status bar notifications with specific phrases

Deployment and Initialization

The exact deployment method for LianSpy remains unclear, but researchers suspect it involves either an unknown vulnerability or direct physical access to the victim's device. Upon installation, the spyware: - Checks for system app status to obtain necessary permissions automatically - Requests permissions for screen overlay, notifications, background activity, contacts, and call logs if not a system app - Verifies it's not being executed in a controlled environment - Sets up its configuration with predefined values - Stores configuration in SharedPreferences for persistence across reboots

Operational Mechanisms

Once activated, LianSpy: - Hides its icon - Registers a built-in broadcast receiver to receive system intents - Triggers various malicious activities, including screen capturing and data exfiltration - Updates its configuration by searching for specific files on the threat actor's Yandex Disk every 30 seconds

Data Collection and Encryption

LianSpy stores collected data in an SQL table called Con001, which includes the data type and its SHA-256 hash. The encryption process involves: - Generating an AES key using a secure pseudorandom number generator - Encrypting the AES key with a hardcoded public RSA key This approach ensures that only someone with the corresponding private RSA key can decrypt the stolen data.

Advanced Evasion and Exfiltration

LianSpy demonstrates advanced capabilities for evading detection and exfiltrating data: - Capturing screenshots stealthily using the screencap command with root access - Utilizing cloud and Pastebin services to obscure malicious activity - Encrypting exfiltrated data to prevent victim identification - Gaining root access through a modified su binary

Command and Control Infrastructure

Instead of using its infrastructure, LianSpy relies on Yandex Disk for data exfiltration and storing configuration commands. The communication with its C2 server is unidirectional, with the malware handling update checks and data exfiltration independently. Yandex Disk credentials can be updated via a hardcoded Pastebin URL, which may vary among malware variants. Read the full article

[inestwebnoida]

Choose the Right Data Storage Option .NET MAUI

In today’s digital age, mobile apps have become an integral part of our lives. Whether it’s for productivity, entertainment, or socializing, we rely on apps for various tasks. .NET MAUI (Multi-platform App UI) is a powerful framework for building cross-platform apps, allowing developers to create apps that run seamlessly on Android, iOS, and other platforms. When developing .NET MAUI apps, effective data handling and storage are crucial for a smooth user experience. In this article, we’ll explore best practices for data handling and storage in .NET MAUI apps, ensuring that your app performs efficiently and securely.

Choose the Right Data Storage Option

.NET MAUI apps often need to store and manage data, ranging from user preferences to application-specific content. Choosing the appropriate data storage option is the first step in ensuring efficient data handling. Here are some common options:

UserDefaults (iOS) and SharedPreferences (Android): Suitable for storing small amounts of data like user settings and preferences.

SQLite: Ideal for structured data and complex querying.

Xamarin.Essentials Preferences: Cross-platform key-value pairs storage.

Cloud-Based Storage: For remote data storage and synchronization.

The choice of storage depends on your app’s requirements. For complex data structures and queries, SQLite is often the best choice, while UserDefaults and SharedPreferences are suitable for lightweight storage.

Implement Data Access Layer (DAL)

To maintain a clean and organized codebase, it’s essential to implement a Data Access Layer (DAL). The DAL abstracts the underlying data storage, making it easier to switch between different storage options without affecting the rest of the application. It also promotes code reusability.

Asynchronous Data Operations

In .NET MAUI apps, data operations should be performed asynchronously to prevent blocking the UI thread. This ensures a responsive user interface, even when dealing with large datasets or slow network requests. Utilize async and await keywords when working with data operations.

Secure Data Storage

Security is a top priority when handling user data. When dealing with sensitive information, such as user credentials or personal data, follow these best practices:

Encryption: Encrypt sensitive data before storing it.

Secure Communication: Ensure data transmission is done securely using HTTPS.

Authentication and Authorization: Implement proper mechanisms to restrict access to sensitive data.

Data Caching and Offline Support

Implement data caching strategies to store previously fetched data locally, allowing the app to provide a seamless user experience even without a network connection. Consider using libraries like Akavache or MonkeyCache to simplify data caching in your app.

Data Synchronization

Implement synchronization mechanisms to keep local and remote data in sync, handling conflicts and managing data updates intelligently.

Proper Error Handling

Ensure your app gracefully handles errors, providing clear and user-friendly error messages. Log errors for debugging purposes but avoid exposing sensitive information to end-users.

Testing and Optimization

Thoroughly test your data handling and storage components and profile your app to identify performance bottlenecks. Optimize data access for improved responsiveness.

User Data Privacy

Respect user data privacy by adhering to data protection regulations and clearly communicating your app’s data collection and usage policies to users.

Regular Updates and Maintenance

Regularly update and maintain your data management strategies to accommodate new features and changing requirements, ensuring your app remains secure and efficient.

In conclusion, data handling and storage are fundamental aspects of building .NET MAUI apps. By following these best practices, you can create reliable and user-friendly apps that users can trust and enjoy.

[brassaikao]

Flutter Web Service Client Sample 範例 (續) – 自動儲存和載入最後一次查詢條件

承前一天的查詢方塊功能，透過 SharedPreferences 套件儲存和載入查詢的條件。讓 App開啟時自動載入最後一次的查詢條件。(此機制常用於儲存使用者的登入帳號密碼並自動登入) daos/shared_preferences_dao.dart import 'package:shared_preferences/shared_preferences.dart';class SharedPreferencesDao { static SharedPreferences? _prefs; static void initialize() async { _prefs ??= await SharedPreferences.getInstance(); } static String getSearchKey() { String? searchKey; if(_prefs !=…

[shipon2004]

Delete kore dite hbe

cardView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) {

proge.setVisibility(View.VISIBLE);

/* if (position == 0) { RequestQueue queue = Volley.newRequestQueue(Bank_Home_Activity.this); String url = "https://mydataapp.000webhostapp.com/app/me_lernerning/allData.php?id=" + ids; JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, url, null, new Response.Listener<JSONArray>() { @Override public void onResponse(JSONArray jsonArray) { sharedPreferences = getSharedPreferences(getString(R.string.app_name), MODE_PRIVATE); editor = sharedPreferences.edit(); for (int x = 0; x < jsonArray.length(); x++) { try { JSONObject jsonObject = jsonArray.getJSONObject(x); String id = jsonObject.getString("id"); String name = jsonObject.getString("name"); String mobail = jsonObject.getString("mobail"); String gmail = jsonObject.getString("email"); String pasword = jsonObject.getString("uspasword"); String iba1 = jsonObject.getString("iba1"); String iba2 = jsonObject.getString("iba2"); if (iba1.contains("paid")) { proge.setVisibility(View.GONE); Toast.makeText(getApplicationContext(), "BD Success", Toast.LENGTH_LONG).show(); startActivity(new Intent(Bank_Home_Activity.this, Couse_Video_Class.class)); } else if (iba2.contains("")) { proge.setVisibility(View.GONE); startActivity(new Intent(Bank_Home_Activity.this, Paid_Activity.class)); Toast.makeText(getApplicationContext(), "BD Success01", Toast.LENGTH_LONG).show(); } } catch (JSONException e) { Toast.makeText(getApplicationContext(), "Error", Toast.LENGTH_LONG).show(); }//------------- } } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError volleyError) { Toast.makeText(getApplicationContext(), "Sagor sarker shipon", Toast.LENGTH_LONG).show(); } }); queue.add(jsonArrayRequest); } else if (position == 1) { RequestQueue queue = Volley.newRequestQueue(Bank_Home_Activity.this); String url = "https://mydataapp.000webhostapp.com/app/me_lernerning/allData.php?id=" + ids; JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, url, null, new Response.Listener<JSONArray>() { @Override public void onResponse(JSONArray jsonArray) { sharedPreferences = getSharedPreferences(getString(R.string.app_name), MODE_PRIVATE); editor = sharedPreferences.edit(); for (int x = 0; x < jsonArray.length(); x++) { try { JSONObject jsonObject = jsonArray.getJSONObject(x); String id = jsonObject.getString("id"); String name = jsonObject.getString("name"); String mobail = jsonObject.getString("mobail"); String gmail = jsonObject.getString("email"); String pasword = jsonObject.getString("uspasword"); String iba2 = jsonObject.getString("iba2"); if (iba2.contains("paid")) { proge.setVisibility(View.GONE); Toast.makeText(getApplicationContext(), "BD Success", Toast.LENGTH_LONG).show(); startActivity(new Intent(Bank_Home_Activity.this, Couse_Video_Class.class)); } else if (iba2.contains("")) { Bitmap bitmap = ((BitmapDrawable) ibaMain_imge.getDrawable()).getBitmap(); Paid_Activity.MY_BITMAP1 = bitmap; Paid_Activity.title = cTitle; Paid_Activity.visize = videoSize; Paid_Activity.des = desc; Paid_Activity.totalpriceActivity = totalprice; Paid_Activity.despriceActivity = desprice; Paid_Activity.BKASH = bkash; Paid_Activity.NOGAT = ngod; Paid_Activity.ROKET = roket; proge.setVisibility(View.GONE); startActivity(new Intent(Bank_Home_Activity.this, Paid_Activity.class)); Toast.makeText(getApplicationContext(), "BD Success01", Toast.LENGTH_LONG).show(); } Toast.makeText(getApplicationContext(), "BD Success02", Toast.LENGTH_LONG).show(); } catch (JSONException e) { Toast.makeText(getApplicationContext(), "Error", Toast.LENGTH_LONG).show(); }//------------- } } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError volleyError) { Toast.makeText(getApplicationContext(), "Sagor sarker shipon", Toast.LENGTH_LONG).show(); } }); queue.add(jsonArrayRequest); } */ }//----------------------------------------------------------- });

[kumpulanjurnalmakalah-blog]

[solved] How to save List to SharedPreferences in Flutter?

[solved] How to save List to SharedPreferences in Flutter?

In Flutter, it is common to need to save a List of Objects to the device’s SharedPreferences, which is a key-value store for simple data. This can be useful for storing user settings, small amounts of data, or caching data locally. Storing a List of Objects in SharedPreferences requires some extra steps compared to storing a single value, as SharedPreferences only allows for simple data types…

[appkingts]

Web app maintenance and support services

Introduction: The most widely used mobile software in today's technologically advanced world is Android, which makes developing Android apps a profitable and much-demand expertise. By utilizing the full power of the Samsung platform, native app design offers a smooth and optimized user experience. We'll go over key ideas, resources, and suggested methods to get you started as we examine the Android-native mobile app creation procedure throughout this blog post.

Understanding Native App Development:

Differentiating native apps from hybrid and web apps.

Advantages of native app development: performance, access to device features, and enhanced user experience.

Setting Up the Development Environment:

Installing Java Development Kit (JDK) and Android Studio.

Configuring Android Virtual Devices (AVD) for testing.

Key Components of Android Native Apps:

Activities, Fragments, and Intents.

User Interface (UI) elements: Layouts, Views, and Widgets.

Working with Resources: Strings, Images, and Styles.

Fundamentals of Android App Development:

Activities: Creating, managing, and navigating between activities.

User Interface Design: Layouts, Views, and XML.

Handling User Input: Event listeners and input validation.

Interacting with Device Functionality:

Working with permissions to access device features (e.g., camera, geolocation).

Utilizing Sensors: Accelerometer, GPS, and gyroscope.

Integrating with APIs and web services.

Data Persistence:

Storing data using SQLite databases.

Implementing Content Providers for data sharing.

Exploring SharedPreferences for simple data storage.

Enhancing App Functionality:

Implementing background services and notifications.

Utilizing threading and asynchronous programming.

Integrating third-party libraries and SDKs.

Testing and Debugging:

Testing app behavior using unit tests and instrumentation tests.

Debugging techniques: Logging, breakpoints, and Android Studio debugging tools.

Optimizing app performance and handling crashes.

Publishing Your App:

Preparing your app for release.

Generating signed APKs.

Uploading to the Google Play Store.

Best Practices and Resources:

Following Android development best practices.

Staying updated with the latest Android versions and features.

Recommended resources, forums, and communities for further learning.

Conclusion: The potential of creating strong and compelling mobile applications is enormous with Android native app development. You may make an enormous difference in the smartphone development community and realize your app ideas by grasping the essential principles, using the appropriate tools, and adhering to best practices. Investigate the many options provided by the Android platform, try out new functions, and keep learning to remain ahead in this captivating and fast-paced industry.

[vijaycreations]

Check out how to use SharedPreferences in the Flutter app https://youtu.be/nIbo5dTdJvM

Visit my channel to know more about Flutter: https://www.youtube.com/channel/UCBC_Z7jla1GSITcqLKAtPxQ

[expertappdevs]

User Session Management In Android

Overview:-

The session helps you when you need to store client information outside your application, with the goal that when the following client utilizes your application, you can undoubtedly get back his subtleties and perform in a like manner.

This should be possible in numerous ways. Be that as it may, the simplest and most pleasant method of doing this is through Shared Preferences.

Shared Preferences:-

Shared Preferences permit you to save and recover information as key, value pairs. To utilize shared preference, you need to call a strategy getSharedPreferences() that profits a SharedPreference case highlighting the record that contains the upsides of preferences.

Sharedpreferences = getSharedPreferences(CONFIG_PREF, Context.MODE_PRIVATE);

You can save something in the shared preferences by utilizing the SharedPreferences.Editor class. You will call the alter technique for the SharedPreference example and will get it in a proofreader object. Its grammar is −

Editor editor = sharedpreferences.edit();

editor.putString("key", "esteem");

editor.commit();

Aside from the putString technique, there are strategies accessible in the proofreader class that permits control of information inside shared preferences. They are recorded as follows −

Sr.No  Mode & Description

apply()  It is a theoretical strategy. It will submit your progressions back from proofreader to the sharedPreference object you are calling

clear()  It will eliminate all qualities from the editorial manager

remove(String key)  It will eliminate the worth whose key has been passed as a boundary

putLong(String key, long worth) It will save a long worth in an inclination editorial manager

putInt(String key, int esteem)  It will save a number worth in an inclination proofreader

putFloat(String key, float esteem) It will save a float esteem in an inclination proofreader

Session Management through Shared Preferences

To perform meeting the board from shared preferences, we really want to check the qualities or information put away in shared preferences in the onResume strategy. In case we don't have the information, we will begin the application from the start as it is recently introduced. In any case, assuming we got the information, we will begin from where the client left it. It is shown in the model beneath −

Putting away Data

You can save information into shared preferences utilizing the manager. Every one of the crude information types like booleans, floats, ints, aches, and strings are upheld. Call editor.commit() to save changes to shared preferences.

editor.putBoolean("key_name", valid);        /Storing boolean - valid/bogus

editor.putString("key_name", "string esteem");    /Storing string

editor.putInt("key_name", "int esteem");        /Storing number

editor.putFloat("key_name", "float esteem");        /Storing float

editor.putLong("key_name", "long worth");        /Storing long  editor.commit();                    /submit changes

Recovering Data

Information can be retrieved from saved preferences by calling the getString() (For string) technique. Recall this technique ought to be approached by Shared Preferences, not on Editor.

# returns put away inclination esteem  # If esteem is absent return second param esteem - For this situation invalid

pref.getString("key_name", invalid);            /getting String

pref.getInt("key_name", invalid);            /getting Integer

pref.getFloat("key_name", invalid);            /getting Float

pref.getLong("key_name", invalid);            /getting Long

pref.getBoolean("key_name", invalid);        /getting boolean

Clearing/Deleting Data

Assuming you need to erase from shared preferences you can call remove("key_name") to erase that specific value. Assuming you need to erase every one of the information, call clear()

editor.remove("name");        /will erase key name

editor.remove("email");        /will erase key email

editor.commit();            /submit changes

Following will clean every one of the information off of shared preferences  editor.clear();

Contact Us for Android App Development Services!

[dmtechnolab]

Android SharedPreferences Example - Writing and Reading Values - Android Coding by DMTechnolab

Android SharedPreferences Example – Writing and Reading Values – Android Coding by DMTechnolab

The package The trap.Simplified coding.Shared; Import Android.Content.Sharing; Import Android.Support.v7.App.AppCompatActivity; Import Android.The.Bundle; Import Android.Opinion.Opinion; Import Android.Widget.Change in writing; Import Android.Widget.text view; public class Main activity Is spread AppCompatActivity {{ Private Fixed The last String SHARED_PREF_NAME = “mysaredpref”; Private Fixed…

[davidem986]

Sul mio Blog nuovo articolo su Android Studio - SharedPreferences tra due o più Activity. Link https://davidetech.blogspot.com/2020/08/android-studio-sharedpreferences2.html On my Blog new article on Android Studio - SharedPreferences between two or more Activities. links https://davidetech.blogspot.com/2020/08/android-studio-sharedpreferences2.html #programming #appdeveloper #developer #computerscience #programminglife #programminglanguage #google #android #androidstudio #app #kotlin #sharedpreferences #activity https://www.instagram.com/p/CDrRpyiARs2/?igshid=aakwx6ovfwz

[jacob-cs]

android SharedPreferences , Preferences, settings

original source : https://youtu.be/M15PEeHXM64 

33분량

select list형태의 경우 아래와 같이 array를 만들어 사용한다.

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preference activity 나 preference fragment에 사용할 화면 구성하기 

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preference activity 나 preference fragment의 형태 이경우에는 preference activity 안에 preference fragment를 포함 하는 형태로 만들었는데 반드시 포함해야 하는 것은 아니다.

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저장된 Preferences를 통해 저장된 SharedPreferences값을 불러오는 방법과 일반 SharedPreferences사용방법

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SharedPreferences와 Preferences 차이

https://stackoverflow.com/a/23223316/3151712

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https://youtu.be/M15PEeHXM64

30분 분량

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https://youtu.be/SfeRakSWWbk

16분분량

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SharedPreferences Preferences setOnPreferenceChangeListener onPreferenceChange alert alertdialog

https://stackoverflow.com/a/21857176/3151712

https://stackoverflow.com/a/11531922/3151712

dialogpreference

https://developer.android.com/reference/android/preference/DialogPreference?hl=en

extend 

https://stackoverflow.com/a/40058062/3151712

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Preference EditTextPreference 속성 attributes 바꾸기

https://stackoverflow.com/a/55461028/3151712