Hi everyone. So i’m following the tutorial in this chapter and for some reason after entering the code as followed on listing 7.7 page 140 the widgets are all in top of the others. I know at the time of the release of this book, the API was 21 and now i’m using version 29. How can i take care of this issue. Thanks in advance. By the way i purchased four edition but i would like to finish this one which is written in java.