What will if i pass in a null as 2 parameter and true as 3 parameter in inflate method in Android? I know that if i do something like this:

LayoutInflater.from(this).inflate(R.layout.children, parent)

R.layout.children will appear as a children of parent. Did i got it right? But if i pass like this

LayoutInflater.from(this).inflate(R.layout.children, null, false)

It will return me a R.layout.children, without parent, because parent passed as null. But what will if i pass like this?

LayoutInflater.from(this).inflate(R.layout.children, null)

What should R.layout.children as children join? The parents are null, and the third parameter is true by default. That is, there will be an addView implicitly. But to what?

CodePudding user response：

This is the source code for inflate:

    public View inflate(@LayoutRes int resource, @Nullable ViewGroup root) {
        return inflate(resource, root, root != null);
    }

you can see that root is optional and if null the third parameter is false and then no View attached to the parent ViewGroup.