ViewServer is a simple class you can use in your Android application to use the HierarchyViewer inspection tool.
ViewServer requires the Android SDK r12 or higher. http://developer.android.com/sdk/index.html
Android DebugPort allows you to write and execute code within your app's context, at runtime, and from the comfort of your desktop computer's terminal. Think of it as a window into your application through which you can both inspect and modify its state.
Circular Wheel type list that can be used as item picker of string items. Even with a small size it can handle infinite number of input items changes as you scroll means items will not overlap.