How to get information when battery status sets full

Question

my question is... how to get information when battery status sets full. I've tried do this by receiver on ACTION_BATTERY_CHANGED, but this isn't working, I'm almost sure that receiver not even get this broadcast. Maybe i don't understand this properly, action_battery_changed means that is signalized when our battery get another % ? Or only in particular events like disconnected or connected, because this actions works in my application(in another class receiver).

<receiver android:name="com.lily.chargingscheduler.ChangingBatteryStatsOnReceiver"   >
      <intent-filter>
          <action android:name="android.intent.action.ACTION_BATTERY_CHANGED" />
      </intent-filter>
</receiver>

And class :

 public class ChangingBatteryStatsOnReceiver  extends BroadcastReceiver {
    static BDHelper db_helper;
    private String data;
    String level_;
    String answer;

@Override
public void onReceive(Context context, Intent intent) {
    db_helper = new BDHelper(context);
    data = (new SimpleDateFormat("MM/dd/yyyy HH:mm")).format(new Date());
    level_ = batteryLevel(context);

    if(db_helper.getLastRow().get_TO_D().equals("")){
        if(level_ == "100%"){// level return % as a String
            answer = calculate();//calculate returns date and other things
            ending_charging(context);//adding to table and notification of this event   
        }
    }
}

[edit]

Maybe i wasn't specific enough, i don't have problem with getting information about battery level, I've problem with getting information when my battery is full.

Answer 1

public void onReceive(Context context, Intent intent) {
             context.unregisterReceiver(this);
             int currentLevel = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
             int scale = intent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
             int level = -1;
             if (currentLevel >= 0 && scale > 0) {
                 level = (currentLevel * 100) / scale; // level will returns 99 or 100 when battery is full
             }
             batteryPercent.setText("Battery Level Remaining: " + level + "%");
         }
     }; 
     IntentFilter batteryLevelFilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
     registerReceiver(batteryLevelReceiver, batteryLevelFilter);
}

As additional, if you want to listen the battery on low status, add this <intent-filter/>:

<receiver android:name=".ChangingBatteryStatsOnReceiver">
<intent-filter>
  <action android:name="android.intent.action.ACTION_BATTERY_LOW"/>
  <action android:name="android.intent.action.ACTION_BATTERY_OKAY"/>
  </intent-filter>
</receiver>