delete "don't use bottom tab bars" anti-pattern, because it's out of date,

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<h4>Don't use bottom tab bars</h4>

<p>Other platforms use the bottom tab bar to switch between the app's views. Per platform convention,

Android's tabs for view control are shown in action bars at the top of the screen instead. In

addition, Android apps may use a bottom bar to display actions on a split action bar.</p>

<p>You should follow this guideline to create a consistent experience with other apps on the Android

platform and to avoid confusion between actions and view switching on Android.</p>

<p>For more information on how to properly use action bars for view control, see

<a href="{@docRoot}design/patterns/actionbar.html">Action Bars</a>.</p>

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    <img src="{@docRoot}design/media/migrating_ios_dialers.png">

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      Android dialer with tabs in an action bar vs. bottom tabs in iOS.

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