Are you asking the question "How to set the animation in Little Red Book as a dynamic wallpaper"? The operation steps are as follows:

1. Open the Little Red Book APP, find your favorite dynamic wallpaper, and click "Share".

2. Click "Save to Album" in the pop-up option.

3. Open the mobile phone photo album and find the saved dynamic wallpaper. If it is an Apple phone, click "Share".

4. Click "Use as wallpaper" in the pop-up options.