如何知道手机是否正在充电

Question

我需要知道(通过我的应用程序)Android设备是否正在充电.有任何想法吗？谢谢

Answer 1

我发现的一件事是,如果您的手机具有100%的电池电量,您将无法收到充电通知.有些人意味着充电,而其他人则意味着有外部能力,无论是100%.我把它们混为一体,如果有任何条件,那我就归于真.

public static boolean isPhonePluggedIn(Context context){
    boolean charging = false;

    final Intent batteryIntent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
    int status = batteryIntent.getIntExtra(BatteryManager.EXTRA_STATUS, -1);
    boolean batteryCharge = status==BatteryManager.BATTERY_STATUS_CHARGING;

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

    if (batteryCharge) charging=true;
    if (usbCharge) charging=true;
    if (acCharge) charging=true; 

    return charging;
}

Answer 2

这是有效的代码:

Intent bat = loader.registerReceiver(null, new
        IntentFilter(Intent.ACTION_BATTERY_CHANGED));
int level = bat.getIntExtra("level", 0);
int scale = bat.getIntExtra("scale", 100);
return level * 100 / scale;