widget.tabs.* package contains collection of tab widgets,
similar to the Android TabWidget, but with more features such as scroll/fling gestures, etc.
| ScrollableTabHost.OnTabChangeListener | Interface definition for a callback to be invoked when tab changed |
| ScrollableTabHost.TabContentFactory | Makes the content of a tab when it is selected. |
| ScrollableTabWidget.OnTabSelectionChangedListener | Let TabHost know that the user clicked on a tab indicator. |
| ScrollableTabActivity | An activity that contains and runs multiple embedded activities or views. |
| ScrollableTabHost | This widget enhances the TabHost widget with scroll and fling gestures. |
| ScrollableTabHost.TabSpec | A tab has a tab indicator, content, and a tag that is used to keep track of it. |
| ScrollableTabWidget | This widget is an enhancement of the TabWidget that can contain more tabs than can fit on screen at once and scroll over them. |