Question

我很想知道能否具体确定一个安乐器是否被装入计算机或公正的电力。

主要原因是,我用电话打上“Stay Awake”的电话,当它被拖入计算机,而我却正在开发,但不是当它被拖到一个夜里的电网。

我认为,如果我能够告诉我与我有什么关系的话,我可以利用行动——POWER_CONNECTED来开始服务并检查与Uw Im有关的内容。

Answer 1

我实际上找到了确切的方法,来选择是否将 screen锁定在ACC、USB,或者通过在。

申请许可:android.permission。页: 1



Settings.System.putInt(getContentResolver(), Settings.System.STAY_ON_WHILE_PLUGGED_IN,
                mKeepScreenOn.isChecked() ?
                (BatteryManager.BATTERY_PLUGGED_AC | BatteryManager.BATTERY_PLUGGED_USB) : 0);


AC:BatteryManager.BATTERY_PLUGGED_AC

关于USB:BatteryManager.BATTERY_PLUGGED_USB

For Either: (BatteryManager.BATTERY_PLUGGED_AC | BatteryManager.BATTERY_PLUGGED_USB)

Answer 2

首先,需要登记接收器以听取<代码> 编号:<0> 电池组.BATTERY_PLUGGED_USB。下面是:


BroadcastReceiver receiver = new BroadcastReceiver() {
    public void onReceive(Context context, Intent intent) {
        int plugged = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
        if (plugged == BatteryManager.BATTERY_PLUGGED_USB) {
            Toast.makeText(getApplicationContext(), "Connected to USB, Stay Awake", Toast.LENGTH_LONG).show();
            PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
            PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, "WakeLock");
            wl.acquire();
        } 
    }
};

// register the receiver to listen to battery change
IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
registerReceiver(receiver, filter);

您也需要得到您的安妮斯·汉内尔的许可,以便能够保持觉醒。

<uses-permission android:name="android.permission.WAKE_LOCK" />

One other note, at some point you will need to unregister the receiver. You could provide that via settings page to call unregisterReceiver

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