Monitor the Battery Level and Charging State

Get Battery Percentage

private float getBattery_percentage() { IntentFilter ifilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED); Intent batteryStatus = getApplicationContext().registerReceiver(null, ifilter); int level = batteryStatus.getIntExtra(BatteryManager.EXTRA_LEVEL, -1); int scale = batteryStatus.getIntExtra(BatteryManager.EXTRA_SCALE, -1); float batteryPct = level / (float) scale; float p = batteryPct * 100; Log.d("Battery percentage", String.valueOf(Math.round(p))); return p; }

Get Phone is charging /charged

private boolean getIsCharging() { IntentFilter ifilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED); Intent batteryStatus = this.registerReceiver(null, ifilter); int status = batteryStatus.getIntExtra(BatteryManager.EXTRA_STATUS, -1); boolean isCharging = status == BatteryManager.BATTERY_STATUS_CHARGING || status == BatteryManager.BATTERY_STATUS_FULL; int chargePlug = batteryStatus.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1); // How are we charging? boolean usbCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_USB; boolean acCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_AC; return isCharging; }