Question

I want something like setContentView but for a FrameLayout inside of my current layout means that I have some bunch of controls in my main_activity layout and one of them is pageHolder which is a FrameLayout. I added an android layout in res/layout which is also FrameLayout called page1 and another one called page 2. I want to change the content of pageHolder to the content of page1 or page2 when application is running.

I do the following code but it gives me error:

    FrameLayout pageHolder = (FrameLayout)findViewById(R.id.pageHolder);

    FrameLayout page1 = (FrameLayout)findViewById(R.layout.page1);

    pageHolder.removeAllViews();
    pageHolder.addView(page1);

and it says page1 is null and I have checked it myself and it was null. Can you help me please?

Answer 1

It seems to me that you should use LayoutInflater to inflate that page1 layout. It should look something like this:

LayoutInflater inflater = (LayoutInflater)context.getSystemService
  (Context.LAYOUT_INFLATER_SERVICE);
View v = inflater.inflate(R.layout.page1, null);