There are two ways. The first method is to adjust the settings in the phone. Click to enter the setting option first, then click on the general interface, then click on the accessibility option, and finally turn on the AssistiveTouch option, so that you can brush Tik Tok while playing the game. The second method is to download a software to solve the problem. First, enter the App store of Apple's mobile phone, search split, download and install the software, and open the software. You can see that the address needs to be entered up and down the software. This is the website of iQiyi, and then enter it. Enter a tianqi.com below, and details of a weather network will appear. So you can split the screen up and down.