Android system disables touch screen

Requirement: Set the switch to turn on or off screen touch

accomplish:
 

1.Open the file

./frameworks/base/core/java/android/view/ViewGroup.java

2. Find the public boolean dispatchTouchEvent(MotionEvent ev) method and add the following code at the beginning

        if(SystemProperties.get("system.touchevent.disable").equals("1")){
            Slog.e(TAG,"system disable touch event.");
            return true;
        }

3. Package and re-burn, or adb push out/xxxx/framework/ /system/ and restart

4. Pass

adb shell setprop system.touchevent.disable 1 //Enable screen touch

adb shell setprop system.touchevent.disable 0 //Turn off screen touch

To enable/disable the touch function of the screen