Renaming an Activity

There are two steps to renaming an Activity

Rename the Java file
Rename the XML layout file

Because these filenames might be referenced in various other places of code throughout your entire app codebase, it is important to update all references. Android Studio has a method to automatically detect and update all references to the old filename. This feature is called Refactor.

Follow the below steps to successfully complete a Refactor.

Step 1/2: Rename the Java file

Right-click on the Java file, go to Refactor ⤇ Rename
Type the new name and click Enter
If your project is large and a "Do Refactor" button appears towards the bottom of your Android Studio screen, click that button to perform the rename
Click the gradle elephant icon on the top-right to Sync Project with Gradle Files

Image Not Showing Possible Reasons

The image file may be corrupted
The server hosting the image is unavailable
The image path is incorrect
The image format is not supported

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Step 2/2: Rename the XML layout file

Right-click on the corresponding XML file, go to Refactor ⤇ Rename
Type the new name and click Enter
If your project is large and a "Do Refactor" button appears towards the bottom of your Android Studio screen, click that button to perform the rename
Click the gradle elephant icon on the top-right to Sync Project with Gradle Files
Notice that all references to the old file have been automatically updated in all code files throughout your app

Image Not Showing Possible Reasons

The image file may be corrupted
The server hosting the image is unavailable
The image path is incorrect
The image format is not supported

Learn More →