This Activity already has an action bar supplied by the window decor.

最新推荐文章于 2022-12-16 18:45:05 发布

原创最新推荐文章于 2022-12-16 18:45:05 发布 · 154 阅读

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本文介绍了解决在Android应用中遇到的重复ActionBar问题的方法。通过在AndroidManifest.xml文件中为特定Activity设置NoActionBar主题样式，可以避免预览时显示两个ActionBar的情况。

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在给一个布局添加toolbar的时候出现一个错误

This Activity already has an action bar supplied by the window decor.

这样在preview里面的确可以看出有2个actionBar

于是只需要在声明这个Activity的时候说明一下NoActionBar就可以啦，具体操作是在AndroidManifest.xml中添加一行代码

 <activity android:name=".view.activity.TypeActivity"
            android:theme="@style/AppTheme.NoActionBar" ></activity>

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