[pegitha]

Another issue with the code, each case is supposed to always have "break;" as the last liine.
case 1: canvas = new mostrarfotos(fotos[5]);
canvas.addCommand(exit);
canvas.addCommand(back);
canvas.setCommandListener(this) ;
pantalla.setCurrent(canvas);
break;
I have never used curley braces with the case either as you seem to have in your code. Mine look like this:

Code:

switch(i){
case o:
  doThis();
  break;
case 1:
  doThat();
  break;
}

curley braces only around the switch