android - 如何在运行时获取 Android 中的电池统计信息？

Question

我想在我的应用中显示电池电量统计信息。如何获取电池电量、电池电压等信息？

Answer 1

   BroadcastReceiver batteryLevelReceiver = new BroadcastReceiver() {
        public void onReceive(Context context, Intent intent) {
            context.unregisterReceiver(this);
            int rawlevel = intent.getIntExtra("level", -1);
            int scale = intent.getIntExtra("scale", -1);
            int level = -1;
            if (rawlevel >= 0 && scale > 0) {
                level = (rawlevel * 100) / scale; /* This is your battery level */ 
            }
         }
    };
    IntentFilter batteryLevelFilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
    registerReceiver(batteryLevelReceiver, batteryLevelFilter);
}

或者看看这个人(我发布的代码就是他写的):http://mihaifonoage.blogspot.com/2010/02/getting-battery-level-in-android-using.html