How does Apple modify the background of SMS interface?

Open the SMS icon on the home page of the mobile phone desktop.

Enter the SMS contact list.

Click the menu button on the phone, and then select Settings from the pop-up menu.

Enter the settings page and click the basic settings option above.

In the basic settings page that opens, select the wallpaper option.

At this time, the menu for selecting pictures will pop up, including wallpaper, mobile phone gallery, taking photos and default pictures. If you have a favorite picture in your phone, just click on the gallery.

Select a picture that you want to use as wallpaper, click Open Successful Settings, and then exit.

When we return to the original SMS window, we can see that the background picture has changed.

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