We all know that the APP in Apple's mobile phone has a sandbox, and the APP is an information island, which cannot communicate with each other. But iOS apps can register their own URL Scheme, which is designed to facilitate mutual calls between apps. We can open the app through the system's OpenURL and pass some parameters.
Design it like this in your app:
Then you can enter in the browser in the iphone event: WXTest:// or QQTest:// to open the APP
And you can receive parameters in the -(BOOL)application: openURL: options: method