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1. The menu folder is not seen in the Android Studio project.
2. If I want to add a menu layout file to the Android Studio project, my initial approach is: right-click on the res folder and select the xml file to add.
3. However, you will find that the newly created layout file seems strange. You cannot add menu and item, as shown in the following figure:
2. Processing method
1. After going through it, I learned that the menu layout file must be created under the menu folder. The correct method is as follows. First, right-click on the res folder, and then as shown in the figure below:
2. Then the following page will appear. Select menu in the Resource type drop-down bar.
3. Finally, click OK, and the menu folder will come out.
4. Right-click on the menu folder and select as shown below:
5. Enter the file name and click OK.
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