A recent test of the applet found that the WeChat applet on Huawei Android 10 phones could not be activated. I searched online and there are many people with similar situation. So I started to check myself and found that there was no problem with my small program, which was a system feature of Huawei mobile phones.
Solution:
1. Check whether the floating window permission of WeChat is enabled. Turning on the floating window permission can solve the problem
2. Check whether WeChat has the permission to be displayed on the upper layer of other applications, which needs to be turned on
