This is there to simulate delay in processing heavy duty stuff that you may want to offload from the main activity and display the queue process as I fire three subsequent request. In the example below, IntentService class has a delay of 10 seconds added to the processing which you must remove in you real application. Define the BroadcastReceiver as subclass within the main activity and register the receiver.You need to send a broadcast from the onHandleIntent() method of the IntentService class after the processing is complete to let the BroadcastReceiver know results of the process.The main user interface remains responsive throughout the processing, allowing the user to continue to interact with the application. The service takes over from here, catching each intent request, processing it, and shutting itself down when it’s all done. You can pass any data to the intent using the extras. In your Activity start the Service with a call to startService() for an Intent instance.You will need to implement just one other method called onHandleIntent(). You should add a constructor with the name of your new service. Create a class file that extends the IntentService class and add stubs for the methods you need to implement.Steps involved in implementing an Android IntentService example using BroadcastReceiver

AsyncTask is limited to a single execution. If you need parallel asynchronous processing then you need to look at the AsyncTask Tutorial. IntentService will receive the Intents, launch a worker thread, and stop the service as appropriate.Īll requests are handled on a single worker thread - they may take as long as necessary (and will not block the application's main loop), but only one request will be processed at a time. To use it, extend IntentService and implement onHandleIntent(Intent). The IntentService class exists to simplify this pattern and take care of the mechanics. This 'work queue processor' pattern is commonly used to offload tasks from an application's main thread.

Clients send requests through startService(Intent) calls the service is started as needed, handles each Intent in turn using a worker thread, and stops itself when it runs out of work. Each intent is added to the IntentService’s queue and handled sequentially. IntentService is a a base class for Service that can be used to handle asynchronous work off the main thread by way of Intent requests on demand.

Android studio intent service