How to get the battery level And the phone number of the phone

For the bettery level of the phone we need to write the following code.

private void batteryLevel() {
             BroadcastReceiver batteryLevelReceiver = new BroadcastReceiver() {
                       public void onReceive(Context context, Intent intent) {
                                    context.unregisterReceiver(this);
                                    int rawlevel = intent.getIntExtra("level", -1);
                                    int scale = intent.getIntExtra("scale", -1);
                                    int level = -1;
                                    if (rawlevel >= 0 && scale > 0) {
                                                       level = (rawlevel * 100) / scale;
                                    }
             batterLevel.setText("Battery Level Remaining: " + level + "%");
         }
        };
   IntentFilter batteryLevelFilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
   registerReceiver(batteryLevelReceiver, batteryLevelFilter);
}


Here level indicates the bettery level of the phone.


For getting the phone number of the phone we have to insert the following code...


TelephonyManager phoneManager = (TelephonyManager) getApplicationContext()                            

                                                                     .getSystemService(Context.TELEPHONY_SERVICE);

String phoneNumber = phoneManager.getLine1Number();

Here phoneNumber indicates the number of the current phone.