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public class BootCompleteReceiver extends BroadcastReceiver {private static final String TAG = "MyReceiver";@Overridepublic void onReceive(Context context, Intent intent) {Intent service =new Intent(context,MsgPushService.class);context.startService(service);Log.i(TAG, "Boot Complete. Starting MsgPushService...");  }}

public class MsgPushService extends Service{private static final String TAG = "MyReceiver";@Overridepublic IBinder onBind(Intent arg0) {return null;}@Overridepublic void onCreate() {super.onCreate();Log.i(TAG, "onCreate called.");  }@Overridepublic int onStartCommand(Intent intent, int flags, int startId) {Log.i(TAG, "onStartCommand called.");  return super.onStartCommand(intent, flags, startId);}}

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public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}}

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public class BatteryChangedReceiver extends BroadcastReceiver {private static final String TAG = "MyReceiver";@Overridepublic void onReceive(Context context, Intent intent) {int currLevel = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0); // µ±Ç°µçÁ¿int total = intent.getIntExtra(BatteryManager.EXTRA_SCALE, 1); // ×ܵçÁ¿int percent = currLevel * 100 / total;Log.i(TAG, "battery: " + percent + "%");}}

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public class BatteryChangedReceiver extends BroadcastReceiver {private static final String TAG = "MyReceiver";@Overridepublic void onReceive(Context context, Intent intent) {Intent batteryIntent = getApplicationContext().registerReceiver(null,          new IntentFilter(Intent.ACTION_BATTERY_CHANGED));  int currLevel = batteryIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0);  int total = batteryIntent.getIntExtra(BatteryManager.EXTRA_SCALE, 1);  int percent = currLevel * 100 / total;  Log.i("battery", "battery: " + percent + "%");  }private Context getApplicationContext() {// TODO Auto-generated method stubreturn null;}}

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