Get battery level using BroadcastReceiver in Android service
I have the code I need to get the battery level of my Android device, but I have a big problem! I have an Android service where I get the charge level and send UDP.
This is my Service Code:
public class Servico extends Service {
String bateria = "Nada";
/*
* Recupera nรญvel 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: I can't get the level! I put BreakPoint in the onReceive method in BatInfoReceiver, but this code is only executed after the onStartCommand is executed, and e NEED uses the battery level value in the onStartCommand.
How can i do this?
obs: I apologize for possible mistakes in English. But I try not to use google translator.
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take a look at this, it will give you the battery level you need to start servicing. Just use BatteryManager.EXTRA_LEVEL
as a key to gain level from intent
http://developer.android.com/training/monitoring-device-state/battery-monitoring.html
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You have added the following permission to your main file:
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
and change the 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 battle level use this line of code:
registerReceiver( batteryReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED) );
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The solution to my problem was tyczj's answer ... I just adjusted to my problem.
My new code:
public void onCreate() {
super.onCreate();
//registerReceiver(BatInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
IntentFilter ifilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
Intent batteryStatus = getApplicationContext().registerReceiver(null, ifilter);
// Are we charging / charged?
int status = batteryStatus.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
bateria = String.valueOf(status);
}
I am very grateful to everyone for their help! Stay of God! Thank!!
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