The tab navigation control uses the standard blue colouring. Here are the before-and-after shots on the tab navigation control: We can theme this element by overriding android:actionDropDownStyle with a custom style to implement our colour scheme: above uses a combination of state list drawables and 9 patch images to style the collapsed spinner, the top bar of the expanded list and sets the highlight colour when picking an item. This is evident when touching the collapsed control in both the top bar, and the selection highlight in the expanded list. The default styling in list navigation mode has a blue colour scheme.
To the left, a standard list drop-down to the right, the effect we want to achieve. The Action Bar’s standard navigation mode simply displays the title of the activity. Next up, the navigation section of the Action Bar operates in three different modes I’ll tackle each of these in turn. For extra credit, I’ll use this image as a starting point to create a more branded logo. This step is easy I’ll use the wonderful Android Asset Studio to create an icon in my chosen colour scheme.
I’ll demonstrate how to take Honeycomb’s Holo.Light theme and customise it to match this blog’s colour scheme. Just because Action Bars are familiar, doesn’t mean that they have to be identical! The following code samples and accompanying project demonstrate how to style the Action Bar to match your application’s branding.
Also, your app will be better prepared to scale across the range of Android devices that will be arriving starting in the Honeycomb era. By using the Action Bar in your Honeycomb-targeted apps, you'll give your users a familiar way to interact with your application.
In Android 3.0 (or Honeycomb to its friends) this pattern has been baked in as the default navigation paradigm and extended to take advantage of the extra real-estate available on tablets. Since the introduction of the Action Bar design pattern, many applications have adopted it as a way to provide easy access to common actions.
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