Android 11.0 机器息屏瞬间立即按power键，机器亮屏并直接进入系统，不再锁屏

frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java

public long interceptKeyBeforeDispatching(IBinder focusedToken, KeyEvent event,int policyFlags) {
     case KeyEvent.KEYCODE_POWER: {
                //发送广播给 KeyguardViewMediator.java
                    Intent mIntent = new Intent("xxx.delayLockScreen");
                    mContext.sendBroadcast(mIntent);
          }
}

frameworks/base/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java

private int LockScreenNum = 0;  //锁屏计数器

private void setupLocked() {
    //注册广播
        IntentFilter filter1 = new IntentFilter();
        filter1.addAction("xxx.delayLockScreen");
        mBroadcastDispatcher.registerReceiver(myDelayLockScreenBroadcastReceiver, filter1);
  }

public void onFinishedGoingToSleep(int why, boolean cameraGestureTriggered) {
if (mPendingLock) {
                //start
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            Thread.sleep(500);
                            //根据计数器判断睡眠模式是否为深度睡眠
                            if (LockScreenNum==0){
                                doKeyguardLocked(null);
                            }
                            mPendingLock = false;
                            LockScreenNum = 0;
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                }).start();
                //end
            }
  }

private final BroadcastReceiver myDelayLockScreenBroadcastReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            //如果屏幕仍然被立即点击，计数器将+1
            if (mPendingLock)
                LockScreenNum++;
        }
    };