The setting method of Jiugongge is as follows (take Huawei Glory v8 series mobile phones as an example):

1. Turn on the phone and click the camera icon on the desktop.

2. Click the "Settings" button at the top of the subsequent interface to enter the camera settings.

3. Click the "Reference Line" button in the subsequent interface.

4. Click the "Jiugongge" button in the drop-down menu that opens automatically.