计时器触发后唤醒Android屏幕 [英] Wake the Android Screen after a timer fires

问题描述

我如何让计时器触发一种方法来唤醒Android设备的屏幕?

How can I have a timer fire a method to wake up the screen of an Android device?

我插入了这个

final Window win = getWindow();
win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
          | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD); 
win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
          | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);

进入

@Override
protected void onCreate(Bundle savedInstanceState) {

方法.

此外，我在用户单击运行以下程序的按钮后设置了计时器:

Additionally, I made a timer after a user clicks a button which runs the following program:

final int interval = 3000; // 3 Seconds
Handler handler = new Handler();
Runnable runnable = new Runnable(){
      public void run() {
           Toast.makeText(getApplicationContext(), "Here", Toast.LENGTH_SHORT).show();


                }
            };
handler.postAtTime(runnable, System.currentTimeMillis()+interval);
handler.postDelayed(runnable, interval);

我希望能够单击我的Android设备的电源按钮使其在3秒的间隔内进入睡眠状态，并在run()触发后将其唤醒. 我叫什么来触发屏幕打开?

I want to be able to click the power button of my Android device to sleep it within the 3 second interval and have it wake up after the run() gets fired. What do I call to trigger the screen to turn on?

推荐答案

此方法也会立即在屏幕上打开:

This method also instantly turns on the screen:

PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock TempWakeLock = powerManager.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK|PowerManager.ACQUIRE_CAUSES_WAKEUP, "TempWakeLock");
TempWakeLock.acquire();
TempWakeLock.release();

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