setContentView and Listeners

Question

I'm changing my ContentView of the Activity at some point. (to View2). After changing it back to View1, the listeners are not more working. I already tried putting the Listener in the onResume() method.

Is it common anyway to use setContentView() to display e.g. a Progress screen/please wait,...(while an asyncTask is running). Or should you only have ONE mainView for each Activity? (and replacing the content dynamically).

//EDIT: To be more specific: I am looking for something like

LinearLayout item = (LinearLayout) findViewById(R.id.mainView);
View child = getLayoutInflater().inflate(R.layout.progress, null);
item.addView(child);

but instead of adding the "progress.xml", it should remove the current layout and ONLY show "progress.xml". Do I need an "container" and show/hide mainView/progress? But that doesn't seem very proper to me...

See also code below (stripped)

public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.view1);

       button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                doSomething();
            }
        });
}

setContentView(R.layout.view2);
[...]
setContentView(R.layout.view1);

//Listener not more working

Answer 1

Thank you all, for your reply. You made me realize, the onClickListeners are getting lost when I remove or replace (using setContentView()) the main view. I ended up this way now:

onCreate:

setContentView(R.layout.parse);
LinearLayout container = (LinearLayout) findViewById(R.id.container);
container.addView(getLayoutInflater().inflate(R.layout.dialog, null));
container.addView(getLayoutInflater().inflate(R.layout.progress, null));

onStartDoingSomething:

findViewById(R.id.dialog).setVisibility(View.INVISIBLE);
findViewById(R.id.progress).setVisibility(View.VISIBLE);

onEndDoingSomehting:

findViewById(R.id.dialog).setVisibility(View.VISIBLE);
findViewById(R.id.progress).setVisibility(View.INVISIBLE);

I might change View.INVISIBLE to View.GONE, like nmr said, but since I have never used View.GONE, I have to check the Android doku first ;)

Answer 2

Assuming you use 'findViewById' to initialize 'button', you would need to do that every time that you do setContentView(R.layout.view1);