如何知道手机正在充电 [英] How to know if the phone is charging

问题描述

我需要知道（throught我的应用程序），如果Android设备正在充电。有任何想法吗？谢谢

i need to know (throught my app) if the Android device is charging. Any ideas? thanks

推荐答案

有一件事我发现是，如果你的手机有100％的电量，你不会得到充电通知。有些人意味着充别人的意思，当有外部电源，无论是其100％与否。我集中到一条，如果任何条件为真，那么我返回true。

One thing I found out is that if your phone has 100% battery level you won't get the charging notification. Some people mean charging and others mean when it has external power, whether its 100% or not. I lumped these into one and if any condition is true then I return true.

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;
}

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