相关疑难解决方法(0)

我正试图TabLayout从Android设计库中设计新款.

<style name="NavigationTab" parent="Widget.Design.TabLayout">
    <item name="tabBackground">@drawable/background_tab</item>
    <item name="tabIndicatorColor">@color/blue</item>
    <item name="tabTextAppearance">@style/NavigationTabTextAppeareance</item>
</style>

文本就在这里定义了

<style name="NavigationTabTextAppeareance" parent="TextAppearance.Design.Tab">
      <item name="android:textColor">@color/primary_light</item>
      <item name="android:textSize">12sp</item>
</style>

但是选中的标签总是黑色的,我该怎么改呢？