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copied!<p>Thanks to CommonsWare here is the code I wrote.</p> <pre><code>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)) { ... } </code></pre> <p>or the Kotlin version</p> <pre><code>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 } } </code></pre> <p>Note BatteryManager.BATTERY_PLUGGED_WIRELESS requires API Level 17 (Jelly Bean MR1). For backward compatibility change the last line to:</p> <pre><code>return plugged == BatteryManager.BATTERY_PLUGGED_AC || plugged == BatteryManager.BATTERY_PLUGGED_USB || (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1 && plugged == BatteryManager.BATTERY_PLUGGED_WIRELESS) </code></pre> <p><a href="http://developer.android.com/training/monitoring-device-state/battery-monitoring.html" rel="noreferrer">http://developer.android.com/training/monitoring-device-state/battery-monitoring.html</a></p>

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