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Pro Android 3 by Sayed Y. Hashimi, Dave MacLean, Satya Komatineni

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Chapter 31. Additional Topics in 3.0

After 30 chapters, there are still a few topics in Android 3.0 that we haven't had a chance to cover! In this final chapter we're going to discuss the enhancements to home screen widgets and the new Drag and Drop API.

There are significant enhancements to widget capabilities in 3.0. With these enhancements, you now can add list-based widgets to the home screen. The Drag and Drop API is entirely new in 3.0. With the Drag and Drop API, you can build rich user interfaces similar to those so common on desktops. We will address both topics in great detail.

List-Based Home Screen Widgets

In Chapter 22, we covered how widgets work in Android releases 2.3 and prior releases. There are robust enhancements to home screen ...

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