This week's book giveaway is in the Java in General forum. We're giving away four copies of Think Java: How to Think Like a Computer Scientist and have Allen B. Downey & Chris Mayfield on-line! See this thread for details.
It is not clear what you mean. Could you restate the problem in more detail:
- Include specifically what you did that did not work
- Include the message you get from LogCat
- Include example source code
The first thing to do would be to clean your project and rebuild it to make sure all classes are using the most up to date versions of things.