Check if device is plugged in

Question

My app has a broadcast receiver to listen for changes to ACTION_POWER_CONNECTED, and in turn flag the screen to stay on.

What I am missing is the ability for the app to check the charging status when it first runs. Can anyone please help me with code to manually check charging status?

Answer 1

Thanks to CommonsWare here is the code I wrote.

public class Power {     public static boolean isConnected(Context context) {         Intent intent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));         int plugged = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);         return plugged == BatteryManager.BATTERY_PLUGGED_AC || plugged == BatteryManager.BATTERY_PLUGGED_USB || plugged == BatteryManager.BATTERY_PLUGGED_WIRELESS;     } }  if (Power.isConnected(context)) {     ... } 

or the Kotlin version

object Power {     fun isConnected(context: Context): Boolean {         val intent = context.registerReceiver(null, IntentFilter(Intent.ACTION_BATTERY_CHANGED))         val plugged = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1)         return plugged == BatteryManager.BATTERY_PLUGGED_AC || plugged == BatteryManager.BATTERY_PLUGGED_USB || plugged == BatteryManager.BATTERY_PLUGGED_WIRELESS     } } 

http://developer.android.com/training/monitoring-device-state/battery-monitoring.html