public class LayoutWechselnTestActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
       
        
        setContentView(R.layout.main2);
        final Button buttonMain2 = (Button) findViewById(R.id.button2);
        
        buttonMain2.setOnClickListener(new View.OnClickListener()
        {
            public void onClick(View v)
            {
                setContentView(R.layout.main);
            }
        });
        
        setContentView(R.layout.main);
        final Button buttonMain1 = (Button) findViewById(R.id.button1);
        
        buttonMain1.setOnClickListener(new View.OnClickListener()
        {
            public void onClick(View v)
            {
                setContentView(R.layout.main2);
                
            }
        });
        

    }
}