Android   Summary of implementation methods for setting full-screen, untitled

Android ActionBarActivity Setting Full Screen Untitled Implementation Method Summary

Preface:

The newly created Activity inherits from ActionBarActivity. It is easy to set full screen without titles, but I didn’t expect that the app would hang for no reason, either with a white screen or a black screen. I've cheated on me for more than an hour! ! !

The reason is when ActionBarActivity is setOnly use themes starting with *** in v7 package, so if you set the full screen without title, you need to customize a style:

<style name="ActionBarFullScreen" parent="">
  <item name="android:windowFullscreen">true</item>
  <item name="android:windowNoTitle">true</item>
  <item name="android:windowContentOverlay">@null</item>
</style>

Then in: Set android:theme="@style/ActionBarFullScreen" and it's OK!

Another solution is to change the inherited ActionBarActivity to FragmentActivity or Activity, and then set the theme directly

Android:theme="@android:style/"

Finish!

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