public class ConnectBroadCastReceiver extends BroadcastReceiver {

    @Override

    public void onReceive(Context context, Intent intent) {

         if(intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)){

                Intent bootActivityIntent=new Intent(context,MainActivity.class);

                bootActivityIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

                context.startActivity(MainActivity);//要启动应用程序的首界面

            }

    }

}

<receiver android:name=".BootBroadcastReceiver">

    <intent-filter>

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

    </intent-filter>

</receiver>

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>