HTML5 Canvas for Dummies
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    HTML5 Canvas For Dummies
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    « Dealing with Android Fragmentation | Main | New Android Design Guidelines »

    Android Action Bar Backward Compatibility

    The Action Bar is a consistently formatted navigation and option selection area at the top of a screen with an overflow area at the bottom.
    Key aspects of the Action Bar include:
    • It's a replacement for the menu feature.
    • It was introduced in Android 3.0 and refined in Android 4.0.
    • It's included in activities that use the Holo theme family.

    Elements of the Action Bar graphic include:

    • Application icon.
    • Application name.
    • Up navigation to a parent screen.
    • Built-in tab navigation for switching between fragments.
    • Drop-down list for alternative navigation such as sort by a different criteria.
    • Important actions for a given app such as search and share.

    Google has recently developed a set of classes to give the Action Bar backward compatibility for pre Android 3.0 devices.  These classes invoke the action bar design pattern on pre-API 11 devices and the built-in Action Bar on devices supporting API 11 or greater.

    This is part of a larger set of capabilities for supporting application compatibility with multiple device environments including tablets and handsets and various screen sizes.

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    Reader Comments (1)

    So as far as I've understood now it's compatible with Android OSes 2.2 and 2.3, right?

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