Best Android Book :
In this part of my Android Development Tutorial, I will build an Android user interface.
I cover how to do numerous things:
1. How to use the Android Visual Layout Editor
2. How to edit the GUI layout by editing the XML
3. How to use TextView, EditText and the SeekBar
4. How to catch events
5. How to save the apps state with onSaveInstanceState()
6. How to get values from components and how to change the values
The video and code will teach you all you need to start making apps.