The Final Challenge
We have one last challenge for you: Become a good Android developer. Good developers are each good in their own way, so you must find your own path from here on out.
Where might you start? Here are some places we recommend:
Write code. Now. You will quickly forget what you have learned here if you do not apply it. Contribute to a project or write a simple application of your own. Whatever you do, waste no time: Write code.
Learn. You have learned a little bit about a lot of things in this book. Did any of them spark your imagination? Write some code to play around with your favorite thing. Find and read more documentation about it – or an entire book, if there is one. Also, check out the Android Developers YouTube ...