Android ViewStub manage replace inner Views

Question

i am testing with the ViewStub Android component. I am able to inflate a View and replace by a new one, but when i perform a replace of the existing View by a new one, i suspect that the destroyer is never called at the old replaced Views. Here is an example code of my logic:

protected void testInflateReplaceViewStub(){
    //case inflating a View...
    View viewInflated = View.inflate(getContext(), R.layout.container_view, this); //container View
    ViewStub viewStub = (ViewStub) findViewById(R.id.view_stub_impl); //view inside layout
    viewStub.setLayoutResource(R.layout.container_view); //fill with some content
    View viewStubInflated = viewStub.inflate();
    //end inflating the first ViewStub

    //case replacing above View by a new one...
    viewStubInflated.invalidate(); //this should destroy old inner Views??
    viewInflated = View.inflate(getContext(), R.layout.container_view, this);
    viewStub.setLayoutResource(R.layout.new_content);//fill new content
    viewStubInflated = viewStub.inflate();
    //end replacing inflating
}

I'd like to force destroying all the old replaced Views.

score 1 · Answer 1 · answered Oct 16 '17 at 13:56

One you inflate the ViewStub it disappears of the hierarchy and you cannot use it again:

After inflation of the layout resource "mySubTree," the ViewStub is removed from its parent.

See ViewStub documentation.

Try using include or even FrameLayout, depend on your needs.

Android ViewStub manage replace inner Views

1 Answers1