How does the ipad screen clock become wallpaper?

Taking the iPadmini, iPadOS 13 system as an example, the specific method of turning the iPad information screen into a clock is as follows:

1. First open the iPad, click to enter the system settings, find and click to enter the "Display and Brightness" interface, and turn off the "automatic screen lock" function;

2. Then return to the main interface, click AppStore, search for "Full Screen Clock" in the search bar after entering, and click "Get" in the result to install the software on the iPad;

3. Close all background programs, turn on the full-screen clock and set the clock style.

Due to the interface limitation of apple system, the clock software in the AppStore cannot lock the screen, which means that the app can only be opened and kept in the front display, and the automatic screen locking function must be turned off, unlike the screen locking clock plug-in in Android phones, even if you quit the application, it can also be displayed on the mobile phone desktop or screen locking interface.

Apple doesn't actually have the same function as the information screen clock on Android. In essence, it is still running the program. Only turn off the background as much as possible and deepen the background to reduce power consumption.