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Android app services download background

Android app services download background
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Guide to background processing | Android Developers


Jan 31,  · Creating a never ending background service in Android is simple but not obvious. Android has two ways of working: foreground (the app that you use and manipulate) and background (the services that you do not see but that provide data to the apps). The latest version of Android has great power management features that place limits on background apps and therefore extend the battery life of your phone. One of them is called Adaptive Battery. Starting in Android (API level 26), an Android application no longer have the ability to run freely in the background. When in the foreground, an app can start and run services without restriction. When an application moves into the background, Android will grant the app a certain amount of time to start and use services.




android app services download background


Android app services download background


Every Android app has a main thread which is in charge of handling UI including measuring and drawing viewscoordinating user interactions, and receiving lifecycle events. If there is too much work happening on this thread, the app appears to hang or slow down, leading to an undesirable user experience. Any long-running computations and operations such as decoding a bitmap, accessing the disk, or android app services download background network requests should be done on a separate background thread.


In general, anything that takes more than a few milliseconds should be delegated to a background thread. Some of these tasks may be required to be performed while the user is actively interacting with the app.


To learn how you can run tasks on background threads and off the main UI thread while the app is actively being used, please take a look at the threading solutions guide.


Applications may also require some tasks to run even when the user is not actively using the app such as syncing periodically with a backend server or fetching new content within an app on a periodic basis.


Applications may also require services to run immediately to completion even after the user has completed interacting with the app. This guide will help you learn which solution best meets your needs for these use cases. Background tasks consume a device's limited resources, like RAM and battery. This may result in a poor experience for the user if not handled correctly.


In order to maximize battery and enforce good app behavior, Android restricts background work when the app or a foreground service notification is not visible to the user. It is important to understand your task needs and choose the right solution adhering to system best practices in scheduling your background job. Can the work be deferred, or does it need to happen right away?


For example, if you need to fetch some data from the network in response to the user clicking a button, that work must be done right away. Is the work dependent on system conditions? You might want your job to run only when the device meets certain conditions, such as being connected to power, android app services download background, having internet connectivity, and so on.


For example, your app might periodically need to compress its stored data. To avoid affecting the user, you would want this job to happen only when the device is charging and idle.


Does the work involve the collection or use of sensitive user data? For example, if you need to provide directions in a navigation app, you can use a foreground service to continue the user-initiated action of starting navigation, android app services download background.


Does the job need to run at a precise time? A calendar app might let a user set up android app services download background reminder for an event at a specific time. The user expects to see the reminder notification at the correct time.


In other cases, the app may not care precisely when the job runs. The app might have general requirements—like, "Job A must run first, then Job B, then Job C"—but it doesn't require jobs to run at a specific time. For work that is deferrable and expected to run even if your device or application restarts, use WorkManager. WorkManager is an Android library that gracefully runs deferrable background work when the work's conditions like network availability and power are satisfied.


For user-initiated work that need to run immediately and must execute to completion, use a foreground service. Foreground services are visible to users via a non-dismissible notification in the notification tray, android app services download background. If you need to run a job at a precise time, android app services download background, use AlarmManager.


AlarmManager launches your app, if necessary, to do the job at the time you specify. However, if your job does not need to run at a precise time, WorkManager is a better option; WorkManager is better able to balance system resources. For example, if you need to run a job every hour or so, but don't need the job to run at a specific time, you should use WorkManager to set up a recurring job. Clients may request that a URI be downloaded to a particular destination file that may be android app services download background of the app process.


The download manager will conduct the download in the background, taking care of HTTP interactions and retrying downloads after failures or across connectivity changes and system reboots. Content and code samples on this page are subject to the licenses described in the Content License.


App Basics. Build your first app. App resources. Resource types. App manifest file. App permissions. Device compatibility. Multiple APK support. Adding wearable features to notifications. Creating wearable apps.


Creating custom UIs. Sending and android app services download background data. Creating data providers. Creating watch android app services download background. Android TV.


Build TV Apps. Build TV playback apps. Help users find content on TV. Recommend TV content. Watch Next. Build TV input services. Android for Cars. Build media apps for cars. Android Things. Developer kits. Advanced setup. Build apps. Create a Things app. Communicate with wireless devices. Configure devices. Interact with peripherals. Build user-space drivers. Manage devices. Create a build. Push an update.


Chrome OS devices. Core topics. Interact with other apps. Handling app links. App shortcuts. App widgets. Architecture Components. Data Binding Library. Paging Library, android app services download background. How-To Guides. Advanced Concepts. Threading in WorkManager. Navigation component. Intents and intent filters.


User interface. Add motion to your layout with MotionLayout. MotionLayout XML reference, android app services download background. Improving layout performance. Custom view components. Look and feel. Add the app bar. Control the system UI visibility.


Supporting swipe-to-refresh. Pop-up messages overview. Adding search functionality. Creating backward-compatible UIs. Media app architecture.


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Android app services download background


android app services download background

Dec 30,  · What is Android Service? Service is a process, but the special thing is about the service is it doesn’t need user interaction and it runs on background. I hope you can imagine some Android Services Examples now. Like Playing music in background. It is a long running process and it does not need user interaction. The latest version of Android has great power management features that place limits on background apps and therefore extend the battery life of your phone. One of them is called Adaptive Battery. Jan 31,  · Creating a never ending background service in Android is simple but not obvious. Android has two ways of working: foreground (the app that you use and manipulate) and background (the services that you do not see but that provide data to the apps).






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