public class Activitybla extends Activity{


boolean attribut;
     public void onCreate(Bundle savedInstanceState){
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main) // HIER UNBEDINGT DIE VERWENDETE LAYOUT-Datei ANGEBEN!! (XML)
            }

            public void programmname(View v){
                     attribut = true;
                     goOn();
             }

            public void goOn(){
                  if(attribut != null){
                       if(attribut){
                          // mach irgendwas
                       }
                   }
             }

}