java - 关于android的整个屏幕的点击事件

Question

想给整个屏幕设置一个点击事件 当在屏幕上点击的时候 产生一个Onclick事件 但是我给一个

RelativeLayout relativeLayout = (RelativeLayout) findViewById(R.id.rela);
relativeLayout.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                
            }
        });
        

但是这样貌似不行啊 在整个屏幕上设置Touch事件的监听用这个方法可以实现 但是单机事件好像不行啊

Answer 1

RelativeLayout is essentially a view, so it’s no problem to set a listener for it. You didn’t set it to match_parent?

Answer 2

Points to note are:
1. Whether the RelativeLayout you set fills the entire screen can be determined by setting the background color.
2. Is there any event coverage? For example, if there is a button on RelativeLayout and the button you click, the button event will conflict with your RelativeLayout
event. In this case, the button will cover the event of RelativeLayout# 🎜🎜#

Answer 3

There are no 点击事件的，点击事件是有View模拟出来的，模拟的过程在View的touch处理的几个方法中完成。触摸事件会由父View传递给子View，再由子View冒泡到父View，这个过程中，子View是可能吃掉事件的，也就是说，触摸事件无法冒泡回父View，既然收不到事件，父View也就无法完成点击事件的模拟。
解决方法是继承重写View的touch processing methods in the underlying touch events, in which you can complete the simulation of click events by yourself.

Answer 4

relativeLayout.setClickable(true);

Answer 5

FrameLayout rootview=(FrameLayout)findViewById(android.R.id.content);
rootview.setClickable(true);

Answer 6

I suggest you take a look at the Android event distribution mechanism to understand why it doesn’t work.
If you must implement this function, set the OnClickListener of all views to the same object.