I have a code, that I need get the Battery Level of my Android device, but I have a big problem. I have an Android Service where I go get battery level and send by UDP.
This is my Service code:
public class Servico extends Service {
String bateria = "Nada";
/*
* Recupera nível de bateria
*/
private BroadcastReceiver BatInfoReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context arg0, Intent intent) {
int level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0);
bateria = String.valueOf(level);
}
};
public void onCreate() {
super.onCreate();
this.registerReceiver(this.BatInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Toast.makeText(getApplicationContext(), "Command=" + bateria + "%", Toast.LENGTH_LONG).show();
stopSelf();
return START_STICKY;
}
@Override
public void onDestroy() {
super.onDestroy();
unregisterReceiver(BatInfoReceiver);
}
@Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return null;
}
}
My problem is: I cannot get the level! I put a BreakPoint into onReceive method in BatInfoReceiver, but this code only is executed after the execute onStartCommand, and e NEED use the value of battery level into onStartCommand.
How can I do it?
Did you add the following permission to your mainfiest file:
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
and change your onReceived Method to:
private BroadcastReceiver batteryReceiver = new BroadcastReceiver() {
@Override
public void onReceive( Context context, Intent intent )
{
int level = intent.getIntExtra( "level", 0 );
bat= String.valueOf(level) + "%" ;
}
};
and to Get the battrey level use this line of code:
registerReceiver( batteryReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED) );