很简单，在 Android Studio 中右键单击您的项目，然后单击应该可以工作的 Optimize Imports.

Simple, right click on your project in Android Studio, then click on the Optimize Imports that should work.

为了做我上面描述的同样的事情，你可以做同样的事情，只需按下 Ctrl+Alt+O，它会优化导入您当前的文件和整个项目取决于您在对话框中的选择.

To do same thing which I described above, you can do same just pressing Ctrl+Alt+O, it will optimize imports of your current file and your entire project depends on your selection in a dialog.