以编程方式在Android中断开电源电缆（USB或AC充电器）时检测到

Question

  BroadcastReceiver mBatteryReceiver = new BroadcastReceiver() { 
      @Override 
      public void onReceive(Context context, Intent intent) { 
       int status = intent.getIntExtra(BatteryManager.EXTRA_STATUS, -1); 
       int level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0); 
       String batteryPercentage = String.valueOf(level); 
       Log.d("battery",batteryPercentage); 
       boolean isCharging = status == BatteryManager.BATTERY_STATUS_CHARGING; 
       Log.d("ischarging", String.valueOf(isCharging)); 

       int chargePlug = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1); 
       boolean usbCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_USB; 
       boolean acCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_AC; 

       String action = intent.getAction(); 


       int plugged = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1); 
       if (plugged == BatteryManager.BATTERY_PLUGGED_AC && DefaultManager.acChargeConnect && level >= DefaultManager.batteryPercentageTriggerValue) { 
        //do something 
       } else if (plugged == BatteryManager.BATTERY_PLUGGED_USB && DefaultManager.usbConnect){ 
        //do something 
       } else if (plugged == 0) { 
        // on battery power 
       } else { 
        // intent didnt include extra info 
       } 
      } 

     }; 

因此，我想要检测何时断开电源线或USB线并在事件发生时执行某些操作。 我已经通过BatteryManager文档，并尝试了几个常量提到那里，但似乎没有工作。我想捕获充电器断开的事件来做一些事情。任何指针赞赏。感谢

Answer 1

看到这里回答正确的行动来听： How to detect power connected state?

另外，不要创建匿名广播接收器，因为它在你的AndroidManifest.xml中注册

Answer 2

你可以这样做就是这样。

Intent intent = getApplicationContext().registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED)); 

     int plugged = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1); 

     if (plugged == BatteryManager.BATTERY_PLUGGED_AC || plugged == BatteryManager.BATTERY_PLUGGED_USB) { 
      Toast.makeText(getApplicationContext(), "Device is Charging", Toast.LENGTH_SHORT).show(); 
     } else { 
      Toast.makeText(getApplicationContext(), "Device not charging", Toast.LENGTH_SHORT).show(); 
     }