Android boot is simple, and android boot is simple.

Android boot is simple, and android boot is simple.

Today, we will mainly discuss how android can enable a service to automatically start upon startup. The Android mobile phone will trigger a Standard Broadcast Action during startup, called android. intent. action. BOOT_COMPLETED (remember to trigger only once). Here we can build a broadcast receiver to receive this action. below is a simple example of the following implementation steps:

Step 1: Create a broadcast receiver and reconstruct its abstract method onReceive (Context context, Intent intent) to start the Service or app you want to start.

Import android. content. BroadcastReceiver;

Import android. content. Context;

Import android. content. Intent;

Import android. util. Log;

Public class BootBroadcastReceiver extends BroadcastReceiver {

// Override the onReceive Method

@ Override public void onReceive (Context context, Intent intent ){

// The XXX. class at the end is the service to be started.

Intent service = new Intent (context, XXXclass );

Context. startService (service );

Log. v ("TAG", "automatic Service Startup .....");

// Start the application. The parameter is the package name of the application to be automatically started.

Intent intent2 = context. getPackageManager (). getLaunchIntentForPackage (packageName );

Context. startActivity (intent2 );

}

}

Step 2: configure the xml file and add the intent-filter configuration in the receiver.

<Cycler android: name = "BootBroadcastReceiver">

<Intent-filter>

<Action android: name = "android. intent. action. BOOT_COMPLETED"> </action>

<Category android: name = "android. intent. category. LAUNCHER"/>

</Intent-filter>

</Cycler>

Step 3: add permissions <uses-permission android: name = "android. permission. RECEIVE_BOOT_COMPLETED"/>

In this way, you can start the system on your own, but there is a problem that sometimes it may take several seconds to enable a certain latency. It may be that the system did not respond to the problem and the broadcast was not sent in time...