在iOS中不使用URL Scheme可以实现跨应用程序通信吗？

Question

I want to open App A from App B, but App A is already in the appstore without configuring a custom URL Scheme . From App B how can I communicate with App A?

Answer 1

No, It's not possible.

You need to re-upload your previous application with URL schema.

FYI, App Extension is another way, If that suits to your app requirement.

Refer this link for detail information.

Answer 2

This Apple doc lists two ways to do inter-app communication locally. One is through AirDrop and the other is through a custom URL scheme. Only the latter can launch another app.