This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE

This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE

报错Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme

This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead.

报错如图

 解决方法：

打开l,把 android：theme="@style/Theme.MyApplication" 里面的Theme.MyApplication换成Themes文件里的Theme.MyApplication.NoActionBar

android：theme="@style/Theme.MyApplication.NoActionBar"

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