Use a ViewSwitcher to put two widgets where only one can fit. This is useful if you want to save space in your UI but don't want to give up multiple features.

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <ViewSwitcher
        android:id="@+id/viewSwitcher"
        android:layout_width="fill_parent"
        android:layout_height="100dp" >

        <Button
            android:id="@+id/button"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:text="@string/btnText1" />

        <ListView
            android:id="@+id/listView"
            android:layout_width="match_parent"
            android:layout_height="fill_parent" >
        </ListView>
    </ViewSwitcher>
    
    <Button
            android:id="@+id/button1"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="@string/commutateViewSwitcherButton" />

</LinearLayout>

OnClickListenerActivity.java

public class OnClickListenerActivity extends Activity {
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		commutateViewSwitcherButton.setOnClickListener(new OnClickListener() {
			public void onClick(View view) {
				final ViewSwitcher viewSwitcher = (ViewSwitcher) findViewById(R.id.viewSwitcher);
				// Create and Animations on the ViewSwitcher to make it beautifully slide
				Animation animationOut = AnimationUtils.loadAnimation(
						getApplicationContext(),android.R.anim.slide_out_right);
				Animation animationIn = AnimationUtils.loadAnimation(
						getApplicationContext(), android.R.anim.slide_in_left);
				
				//set Animations
				viewSwitcher.getNextView().startAnimation(animationIn);
				viewSwitcher.setOutAnimation(animationOut);

				// Show next widget
				viewSwitcher.showNext();
			}
		});
	}
}