How to set the full screen if the information sent by Apple 7 WeChat is not displayed?

In Apple's mobile phone, you can enter the settings page, click the WeChat incoming call option, and set the WeChat incoming call to full screen display.

1. First click to enter the settings page, and click the WeChat option on the page, as shown in the figure below.

2. Then in the jump page, click the call option, as shown in the figure below.

3. In the settings page, select the full screen option, as shown in the figure below.

4. Finally, in the jump page, check the full-screen display option, as shown in the figure below.