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

Posted 2022-01-05 王睿丶

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++;
        
    ;