Battery status is always not charging
android, java, power-management, status
Solution
You cannot register for `ACTION_BATTERY_CHANGED` via the manifest, so you are not receiving those broadcasts. You are trying to get `BatteryManager` extras from `Intents` that do not have those extras (e.g., `ACTION_POWER_CONNECTED`). As a result, you are getting the default value of `BATTERY_STATUS_UNKNOWN`.
Problem
``` @Override public void onReceive(Context context, Intent intent) { int status = intent.getIntExtra(BatteryManager.EXTRA_STATUS, BatteryManager.BATTERY_STATUS_UNKNOWN); if (status == BatteryManager.BATTERY_STATUS_CHARGING || status == BatteryManager.BATTERY_STATUS_FULL) Toast.makeText(context, "Charging!", Toast.LENGTH_SHORT).show(); else Toast.makeText(context, "Not Charging!", Toast.LENGTH_SHORT).show(); } ``` Manifest: ``` <receiver android:name=".receiver.BatteryReceiver"> <intent-filter> <action android:name="android.intent.action.ACTION_POWER_CONNECTED"/> <action android:name="android.intent.action.ACTION_POWER_DISCONNECTED"/> <action android:name="android.intent.action.BATTERY_CHANGED" /> </intent-filter> </receiver> ``` In this code, the Toast always shows "Not Charging!". I tested this on an actual device, and when I plug it into AC or USB power, it still displays the "Not Charging!" Toast.