Android: is using setContentView multiple times bad while changing layouts?

Question

is using setContentView multiple times bad while changing layouts?

Some people say that it\'s bad and they never say why.

and is there some other thing to ch

Answer 1

Yes this is bad, because it inflates your activity with your layout, and if your layout has a lot of views, it may take time.

To avoid that you should use a ViewAnimator, where you put all your layouts and you switch by showNext() and showPrevious(), i.e:

And in your code:

// Don't forget the setContentView
//
// Load the ViewAnimator and display the first layout
ViewAnimator va = (ViewAnimator) findViewById(R.id.ViewAnimator);
// Switch to the second layout
va.showNext();
// Add another layout at the third position
LinearLayout fooLayout = new LinearLayout(this);
va.addView(fooLayout, 3, new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));