Wire In the Tabs | Android Tutorial pdf

Wire In the Tabs

Next, we need to modify the LunchList itself, so it is a TabActivity (rather than a plain Activity) and teaches the TabHost how to use our FrameLayout contents for the individual tab panes.To do this:
1. Add imports to LunchList for android.app.TabActivity and android.widget.TabHost
2. Make LunchList extend TabActivity
3. Obtain 32px high icons from some source to use for the list and details tab icons, place them in LunchList/res/drawable as list.png and restaurant.png, respectively
4. Add the following code to the end of your onCreate() method:
TabHost.TabSpec spec=getTabHost().newTabSpec("tag1");
spec.setContent(R.id.restaurants);
spec.setIndicator("List", getResources()
.getDrawable(R.drawable.list));
getTabHost().addTab(spec);
spec=getTabHost().newTabSpec("tag2");
spec.setContent(R.id.details);
spec.setIndicator("Details", getResources()
.getDrawable(R.drawable.restaurant));
getTabHost().addTab(spec);
getTabHost().setCurrentTab(0);
At this point, you can recompile and reinstall the application and try it out. You should see a two-tab UI like this:

                                               The first tab of the two-tab LunchList

 The second tab of the two-tab LunchList