Removing the default toolbar in an activity android

问题

Before upgrading to android 3.1.I usually just change the theme to a theme. app compact. NoTitleBar but the new version of android studio is having errors recognizing it.I solved this problem by adding base to the beginning. But I can seem to find any answer regarding a style theme that supports removing the custom bar.

回答1:

Add this style in style file . where other styles are mentioned . 


<!-- Base application theme. -->
<style name="AppThemeNoActionBar" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="colorPrimary">@color/colorPrimaryDark</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorPrimaryDark</item>
    <item name="android:statusBarColor">@color/lightgreycolor</item>
</style>

回答2:

In your res/values/styles.xml you have this similar block of code. Ensure that you use Theme.AppCompat.Light.NoActionBar as parent of your theme

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

来源：https://stackoverflow.com/questions/52358998/removing-the-default-toolbar-in-an-activity-android