I made realized an application that make a button but my emulator only shows my TextViews..It doesn't show anything else and the program is correct (and all console messagges are correct too)...
..I don't know why...
maybe is beacause of in the string.xml there is only:
<?xml version="1.0" encoding="utf-8"?>
<string name="hello">Hello World, Pillole!</string>
Plese help me!