Solve the problem that the system bar will turn blue at the moment Android starts APP

The system bar has been processed, but the system bar will still be blue for 1 moment when APP is started. The solution is very simple. In res/values/style, put the following code

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
  <!-- Customize your theme here. -->
  <item name="colorPrimary">@color/colorPrimary</item>
  <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
  <item name="colorAccent">@color/colorAccent</item>
</style>

In @color/colorPrimaryDark

Change to @color/white

Or any other color will do

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