Android5.1 bootable app

1. 
Android Manifest file to add self-starting permission: <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>

2. Define a receiver

Manifest文件注册receiver
<receiver
    android:name=".MyReceiver"
    android:enabled="true"
    android:exported="true">
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED" />

        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</receiver>

Java code:

public class MyReceiver extends BroadcastReceiver {
    
    @Override
    public void onReceive(Context context, Intent intent) {
        
        if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED")){
            Intent newIntent = context.getPackageManager()
                    .getLaunchIntentForPackage("com.example.demo");  //apk包名
            context.startActivity(newIntent);
        }
    }
    
}

3. The self-starting App should be built-in as much as possible, and the reason why it cannot be self-started

(1) The device does not allow self-starting, such as mobile phones of various brands

(2) The self-starting App is installed on the SD card