#AsyncTask

[codingprolab]

CS 442: Mobile Applications Development Assignment 4 – Stock Watch (300 pts)

Uses: Internet, RecyclerView, Option-Menus, Multiple AsyncTasks, JSON Data, Swipe-Refresh, Dialogs, SQLite Database App Highlights: x This app allows the user to display a sorted list of selected stocks. List entries include the stock symbol (and company name), the current price, the daily price change amount and price percent change. x There is no need to use a different layout for landscape…

[codezup]

Android Background Tasks: A Guide to WorkManager

1. Introduction 1.1 Brief Explanation Android applications often require performing tasks in the background, such as syncing data, uploading files, or processing images. Historically, Android developers have used various APIs like AsyncTask, IntentService, and JobScheduler to handle these tasks. However, these APIs have limitations in terms of compatibility, simplicity, and…

[teguhteja]

Job Queues in Odoo 18 Tutorial

Discover how to seamlessly integrate queue job handling in Odoo 18. Our tutorial covers asynchronous tasks, job delays, and best practices. #QueueJob #Odoo18 #AsyncTasks

In this blog post, we explore Job Queues Queue_Job in Odoo 18 Tutorial with a focus on mastering asynchronous job queues. In our tutorial, we cover installation, configuration, and usage of the Job Queue module. We include key code examples and practical tips that demonstrate how to postpone method calls, delegate work to background jobs, and build robust delayable workflows. Throughout this…

[chimeraflowposter]

Kotlin in Mobile App Development: A Modern Approach to Building Robust Android Applications

In the realm of mobile app development, Kotlin has emerged as a game-changer, particularly for Android development. Since its official adoption by Google as a first-class language for Android in 2017, Kotlin has gained widespread popularity among developers due to its concise syntax, interoperability with Java, and robust features that enhance productivity and code safety. As the demand for high-quality mobile applications continues to grow, Kotlin has positioned itself as a modern, efficient, and future-proof choice for building Android apps.

One of the key advantages of Kotlin is its interoperability with Java, which allows developers to seamlessly integrate Kotlin code into existing Java projects. This feature has been instrumental in Kotlin's rapid adoption, as it enables teams to migrate gradually without the need for a complete rewrite. Kotlin's null safety feature is another standout aspect, addressing one of the most common pitfalls in Java development—null pointer exceptions. By distinguishing between nullable and non-nullable types at the language level, Kotlin significantly reduces the risk of runtime crashes, leading to more stable and reliable applications.

Kotlin's concise syntax is another major draw for developers. Compared to Java, Kotlin requires significantly less boilerplate code, making it easier to read and maintain. Features like data classes, extension functions, and lambda expressions allow developers to achieve more with fewer lines of code. For instance, a data class in Kotlin can replace an entire Java class with getters, setters, equals(), hashCode(), and toString() methods, all in a single line. This conciseness not only speeds up development but also reduces the likelihood of errors.

The rise of Kotlin Multiplatform Mobile (KMM) has further expanded the language's reach beyond Android development. KMM allows developers to share business logic between iOS and Android apps, reducing the need for platform-specific code. While the UI layer remains native to each platform, shared modules written in Kotlin can handle tasks such as networking, data storage, and business logic. This approach not only streamlines development but also ensures consistency across platforms, making it an attractive option for teams looking to optimize their workflows.

Kotlin's integration with modern development tools and frameworks has also contributed to its success. Libraries like Ktor for networking and Room for database management are designed to work seamlessly with Kotlin, offering a more idiomatic and efficient development experience. Additionally, Kotlin's support for coroutines has revolutionized asynchronous programming in Android development. Coroutines simplify the handling of background tasks, such as network requests or database operations, by allowing developers to write asynchronous code in a sequential manner. This eliminates the complexity of callbacks and AsyncTask, making the code more readable and maintainable.

In the context of mobile app architecture, Kotlin aligns well with modern patterns such as Model-View-ViewModel (MVVM) and Model-View-Intent (MVI). These architectures promote separation of concerns, making apps easier to test and maintain. Kotlin's sealed classes and inline functions are particularly useful in implementing these patterns, enabling developers to create more expressive and type-safe code. Furthermore, Kotlin's compatibility with Jetpack Compose, Google's modern toolkit for building native UIs, has opened up new possibilities for declarative UI development, further enhancing the developer experience.

Security is a critical consideration in mobile app development, and Kotlin provides several features to help developers build secure applications. For instance, Kotlin's immutable collections and read-only properties encourage the use of immutable data structures, reducing the risk of unintended side effects. Additionally, Kotlin's support for encryption libraries and secure storage APIs ensures that sensitive data, such as user credentials and payment information, is protected. Developers can also leverage Kotlin's type-safe builders to create secure configurations for network requests and other critical operations.

The future of Kotlin in mobile app development looks promising, with ongoing advancements in the language and its ecosystem. The introduction of Kotlin/Native has expanded its capabilities to include iOS and desktop development, while Kotlin/JS enables developers to target web applications. These developments, combined with the language's growing community and support from major tech companies, suggest that Kotlin will continue to play a pivotal role in the evolution of mobile and cross-platform development.

In conclusion, Kotlin has redefined the landscape of Android app development, offering a modern, efficient, and secure alternative to traditional languages like Java. Its concise syntax, robust features, and interoperability with existing tools have made it a favorite among developers. As the mobile ecosystem continues to evolve, Kotlin's versatility and adaptability ensure that it will remain at the forefront of innovation, empowering developers to build the next generation of mobile applications.

Make order Tg Bot or Mobile app from us: @ChimeraFlowAssistantBot

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[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.

[dmtechnolab]

Android AsyncTask is Deprecated: Here's another way - Android Coding by DMTechnolab

Android AsyncTask is Deprecated: Here’s another way – Android Coding by DMTechnolab

If you’re in Android development, I’m pretty sure you know about it Android AsyncTask. The AsyncTask class helped us execute some code in the background thread. With the help of AsyncTask we can execute something on the background thread and return the result to the UI thread. If you want to learn about AsyncTask you can see this Android MySQL tutorial, Where I used AsyncTask. But Android…

[jacob-cs]

android looper , handler, handlerthread

기본개념 정리와 실제 예제

my review point is 9 / 10

https://youtu.be/Yo3VT-fZr68     thread, handler, looper를 이용한 코드��시

https://youtu.be/dSb-K024A6U

https://youtu.be/E81yFwQ0NpI

https://youtu.be/b80LbWVERL4

https://youtu.be/998tPb10DFM

[learnvern]

Learn about different Android app development features like Asynctask Android and their functionalities with practical examples via free video tutorials in Hindi.

[meghanagrayripples]

RxJava For Android

Multithreading in Android has always been a huge task for engineers. RxJava has made life easy for all the Android developers using it. In this blog, we are going to discuss RxJava for Android specifically.

What is RxJava?

RxJava is a JVM library for doing asynchronous and executing event-based programs by using observable sequences. It's main building blocks are triple O's, Operator, Observer, and Observables. And using them we perform asynchronous tasks in our project. It makes multithreading very easy in our project. It helps us to decide on which thread we want to run the task.

What is RxAndroid?

RxAndroid is an extension of RxJava for Android which is used only in Android application.

RxAndroid introduced the Main Thread required for Android.

To work with the multithreading in Android, we will need the Looper and Handler for Main Thread execution.

RxAndroid provides AndroidSchedulers.mainThread() which returns a scheduler and that helps in performing the task on the main UI thread that is mainly used in the Android project. So, here AndroidSchedulers.mainThread() is used to provide us access to the main thread of the application to perform actions like updating the UI.

Use-Cases in Android

RxJava has the power of operators and as the saying goes by, "RxJava has an operator for almost everything".

Case 1:

Consider an example, where we want to do an API call and save it to some storage/file. It would be a long-running task and doing a long-running task on the main thread might lead to unexpected behavior like App Not Responding.

So, to do the above-mentioned task we might think to use AsyncTask as our goto solution. But with Android R, AsyncTask is going to be deprecated, and then libraries like RxJava will be the solution for it.

Using RxJava over AsyncTask helps us to write less code. It provides better management of the code as using AsyncTask might make the code lengthy and hard to manage.

Case 2:

Consider a use-case where we might want to fetch user details from an API and from the user's ID which we got from the previous API we will call another API and fetch the user's friend list.

Doing it using AsyncTask we might have to do use multiple Asynctask and manage the results in was way where we want to combine all the AsyncTask to return the result as a single response.

But using RxJava we can use the power of zip operator to combine the result of multiple different API calls and return a single response.

Case 3:

Consider an example of doing an API call and getting a list of users and from that, we want only the data which matches the given current condition.

A general approach is to do the API call, and from the Collection, we can then filter the content of that specific user based on the condition and then return the data.

But using RxJava we can directly filter out the data while returning the API response by using the filter operator and we do all of this by doing the thread management.

These are a few use cases to understand RxJava for Android and why we need RxAndroid in our project.

[codezup]

Build an Android Weather App in Kotlin: Data Fetching Tutorial

Okay, so the user wants me to write a comprehensive technical tutorial on building an Android weather app in Kotlin that fetches real-world data. Let me think through how to approach this. First, I’ll start with the introduction. I should explain why this is important—maybe touch on how users can learn practical skills. Then, outline what they’ll learn, like using APIs and AsyncTask.…

[thetopprogrammer]

Android Processes, Threads Slidenerd Style Learn Android From null to stackoverflow, processes, threads, handlers, asynctask, xml parsing What you’ll discover Usage Threads, Handlers as well as AsycnTask efficiently in your applications Develop Full asynchronous applications that improve User Experience Carry out network procedures, download documents such as photos as well as videos in your application […]

[draegerit]

Android Programmierung: AsyncTask mit ProgressDialog (Lösung mit einem Callback)

In diesem Tutorial möchte ich beschreiben wie man eine asynchrone Aufgabe auslagert und parallel dazu einen Dialog anzeigt. Den ProgressDialog habe ich bereits im Tutorial Android, ProgressDialog für lange Operationen erläutert. Es gibt bereits einige Beispiele dazu im Internet und die Lösungen sind zumeist praktikabel und funktionell. Jedoch sind diese zumeist mit einer inneren Klasse (wie in der offiziellen Dokumentation https://developer.android.com/reference/android/os/AsyncTask) und blähen dadurch den Quellcode unnötig auf. Ich möchte gerne einen anderen Weg gehen und den AsyncTask auslagern und mit einem Callback versehen so halten wir unseren Quellcode schlank und haben immer das Wesentliche im blick.

Projekt erstellen

Für die nachfolgenden Schritte benötigen wir ein einfaches, leeres Android Projekt mit einer Activity (EmptyActivity).  Gerne möchte ich dir der einfachheithalber ein Download für ein Projekt anbieten welches du dir in Android Studio importieren kannst.   Layout erstellen Für das Ausführen des asynchronen Task benötigen wir eine Schaltfläche und für die Anzeige der Daten  TextView Elemente. Diese Elemente fügen wir über den Designer auf das Layout "activity_main.xml".

Interface ICallback erzeugen

Für die Verarbeitung des Ergebnisses unseres asynchronen Tasks benötigen wir ein Interfaces. Dieses ermöglicht es uns späterer mehrere Implementationen für eventuelle verschiedene Ausführungen zu implementieren. package de.draegerit.asynctaskcallbackapp; public interface ICallback { void handleResult(Result result); } Nun müssen wir uns eine innere Klasse schreiben welche das Interface "ICallback" implementiert. Mit dem implementieren des Interfaces müssen wir zusätzlich die Methode "handleResult" implementieren. class CallbackImpl implements ICallback { @Override public void handleResult(Result result) { } } package de.draegerit.asynctaskcallbackapp; public class Result { private int size; private String filename; private String message; public int getSize() { return size; } public void setSize(int size) { this.size = size; } public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } public String getFilename() { return filename; } public void setFilename(String filename) { this.filename = filename; } }

asynchronen Task erstellen

Nun können wir uns eine öffentliche Klasse für den asynchronen Task erstellen welchen wir mit der Schaltfläche starten wollen. In diesem Beispiel möchte ich eine einfache Datei aus dem Internet laden. Da ich in diesem Tutorial beschreiben möchte wie ein asynchroner Task mit einem Callback ausgestattet werden kann überspringe ich die Erläuterungen für das herunterladen von Dateien. In dem Kontruktors des asynchronen Task wird der Context und zusätzlich ein Callback übergeben. package de.draegerit.asynctaskcallbackapp; import android.app.ProgressDialog; import android.content.Context; import android.content.DialogInterface; import android.os.AsyncTask; import android.util.Log; import java.io.DataInputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.lang.ref.WeakReference; import java.net.URL; import java.net.URLConnection; public class RequestAsyncTask extends AsyncTask { //TAG für den Logger private static final String TAG = "RequestAsyncTask"; //Zieldatei private static final String ADDRESS = "http://progs.draeger-it.blog/example.file"; //Schwache Referenz auf den Context private WeakReference contextRef; //ProgressDialog für die Fortschrittsanzeige private ProgressDialog progressDialog; //Das Ergebniss des asynchronen Tasks private Result result; //Der Callback welcher zum schluss ausgeführt werden soll. private ICallback callback; //Variable welche gesetzt wird wenn die Schaltfläche "Abbrechen" im ProgressDialog betätigt wird. private boolean abortDownload; /** * Konstruktor * @param ctx - der Context * @param callback - der Callback welcher zum Schluss ausgeführt werden soll */ public RequestAsyncTask(Context ctx, ICallback callback) { contextRef = new WeakReference(ctx); this.callback = callback; } @Override protected Result doInBackground(Void... voids) { result = new Result(); try { //Die Progressbar soll den Fortschritt in Prozent anzeigen. progressDialog.setMax(100); DataInputStream stream = null; //Dateiname generieren String filename = String.valueOf(System.currentTimeMillis()).concat(".file"); result.setFilename(filename); //Referenz des Context laden Context ctx = contextRef.get(); try (FileOutputStream outputStream = ctx.openFileOutput(filename, Context.MODE_PRIVATE);){ File privateFileDirectory = ctx.getFilesDir(); Log.i(TAG, privateFileDirectory.getAbsolutePath()); //Aufbau der Verbindung URL u = new URL(ADDRESS); URLConnection conn = u.openConnection(); //ermitteln der Dateigröße int contentLength = conn.getContentLength(); //ablegen der Dateigröße in unseren Result result.setSize(contentLength); //Datenstream öffnen stream = new DataInputStream(u.openStream()); byte buffer = new byte; int count; int total = 0; int percent; //Solange der Stream noch Daten hat und die Variable abortDownload nicht Boolean.True ist, mache... while (((count = stream.read(buffer)) != -1) && !abortDownload) { outputStream.write(buffer, 0, count); total += count; percent = (total * 100) / contentLength; progressDialog.setProgress(percent); } } catch (Exception e) { //Wenn ein Fehler auftritt so soll dieser in unser Result gespeichert werden. result.setMessage(e.getMessage()); e.printStackTrace(); } finally { //Zum Schluss den Datenstream schließen if (stream != null) { try { stream.close(); } catch (IOException e) { //Wenn ein Fehler auftritt so soll dieser in unser Result gespeichert werden. result.setMessage(e.getMessage()); e.printStackTrace(); } } } } catch (Exception e) { //Wenn ein Fehler auftritt so soll dieser in unser Result gespeichert werden. result.setMessage(e.getMessage()); e.printStackTrace(); } //Rückgabe unseres Ergebnisses. return result; } @Override protected void onPreExecute() { super.onPreExecute(); //Anzeigen des ProgressDialoges, //dieses geschieht noch bevor der Download gestartet wird. progressDialog = getWaitDialog(); progressDialog.show(); } @Override protected void onPostExecute(Result result) { super.onPostExecute(result); //nach dem Download (erfolgreich oder nicht) //soll der ProgressDialog geschlossen werden. progressDialog.dismiss(); //Ausführen des Callbacks callback.handleResult(result); } /** * Liefert einen ProgressDialog * @return ein ProgressDialog */ private ProgressDialog getWaitDialog() { Context context = contextRef.get(); String titel = context.getResources().getString(R.string.msg_loaddialog_titel); String message = context.getResources().getString(R.string.msg_loaddialog_message); ProgressDialog progressDialog = new ProgressDialog(context); progressDialog.setTitle(titel); progressDialog.setMessage(message); progressDialog.setCancelable(false); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); progressDialog.setButton(ProgressDialog.BUTTON_POSITIVE, context.getResources().getString(R.string.abort), new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { abortDownload = true; } }); return progressDialog; } } Für dieses Beispiel habe ich eine Datei mit ca. 30MB auf eine Subdomain (http://progs.draeger-it.blog/example.file) geladen. Ich kann & möchte nicht garantieren das diese Datei auf ewig bereitgestellt wird. Die Datei selbst habe ich mit dem Befehl "fsutil file createnew example.file 3000000" unter Microsoft Windows 10 erstellt.

ProgressDialog - Download im Vorgang Wichtig ist hier die Methode "onPostExecute", diese Methode wird zum Schluss ausgeführt und in diesem Beispiel werde ich hier den Callback aufrufen. @Override protected void onPostExecute(Result result) { super.onPostExecute(result); //nach dem Download (erfolgreich oder nicht) //soll der ProgressDialog geschlossen werden. progressDialog.dismiss(); //Ausführen des Callbacks callback.handleResult(result); }

Ausführen des asynchronen Task

Für das Ausführen des asynchronen Task haben wir im ersten Schritt eine Schaltfläche erzeugt. Nun wollen wir an diese Schaltfläche einen Listener hängen und in diesem den Task starten. public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button startBtn = findViewById(R.id.startBtn); startBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { RequestAsyncTask requestAsyncTask = new RequestAsyncTask(MainActivity.this, new CallbackImpl()); requestAsyncTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); } }); } Nun müssen wir noch ein Callback implementieren. In diesem Callback werde ich 2 Textfelder (jeweils mit Dateiname, Dateigröße) und / oder ein Feld mit der Fehlermeldung einer Exception befüllen. class CallbackImpl implements ICallback { @Override public void handleResult(Result result) { //Wenn das Feld "message" leer bzw. NULL ist dann ist kein Fehler aufgetreten. boolean showErrorMessage = result.getMessage() == null; TextView errorMsgTextView = findViewById(R.id.errorMsgTextView); //Wenn keine Fehlermeldung aufgetreten ist dann soll das TextView Element ausgeblendet werden. errorMsgTextView.setVisibility(showErrorMessage ? View.VISIBLE : View.INVISIBLE); if(showErrorMessage){ errorMsgTextView.setText(result.getMessage()); } TextView dateinameTextView = findViewById(R.id.dateinameTextView); dateinameTextView.setText(result.getFilename()); TextView dateigroesseTextView = findViewById(R.id.dateigroesseTextView); dateigroesseTextView.setText(String.valueOf(result.getSize()).concat(" byte")); } }

Download

Fazit

Das auslagern des asynchronen Task hat mir geholfen ein bereits bestehendes Projekt deutlich zu verschlanken. Man könnte nun statt einem Callback auch ein funktionales Interface nutzen jedoch geht dieses erst ab Java 8.      Read the full article

[qualityenthusiastcreation-blog]

Android AsyncTask Example in Kotlin for background processing of task

The AsyncTask help us to perform some operation in background and update the results or status of the work to main thread. Here in this tutorial of  “Android AsyncTask Example in Kotlin”  we will learn about how to implement the AsyncTask using Kotlin code in Android for performing the background operation.

Prerequisite

We required AndroidStudio 3.0 or later

At the time of wiring this tutorial we…

[georgioupanayiotis]

Android AsyncTask explained

Android AsyncTask explained is an abstract class that it is performing heavy tasks in the background, check out the post below to get more in depth about Android Async Task. (more…)

[shailsingh2007-blog]

Android - loading images from SD Card in ListView

Android – loading images from SD Card in ListView

ListView is a very common widget in Android to show list. Now to show a list with images from web url can be done using several libraries like Fresco, Glide, Volley etc but loading images from SD Card or local storage is little tricky as it takes longer time to load and which results jerk in scroll of the listview. To solve this issue you need to load the images asynchronously within the listview…

[101now]

Android Background Processing [SUBSCRIBER]

Android Background Processing [SUBSCRIBER]

<p>Learn about all the cool concepts from background processing in Android! Use the WorkManager, JobScheduler, Services, AsyncTasks and the AlarmManager.</p> <p>Learn what each concept brings to the table, and how they affect your app’s performance!</p>