Based on the existing WeChat API, how to implement payment on the app side?

The current situation is that according to the existing WeChat API, the data is returned to the app side, and there is a problem that the payment page cannot be adjusted?
How to break it?

Reply content:

The current situation is that according to the existing WeChat API, the data is returned to the app side, and there is a problem that the payment page cannot be adjusted?
How to break it?

Finally found out:
As long as the program you write is consistent with the official documentation. Whether it's parameters or order and others.

Check whether each parameter is correct. If you can’t afford it, there will naturally be an error. Analyze the error message. Just saying that you can’t afford it will cause many problems. Talking for three days is not enough.

APP WeChat payment and WeChat official account payment are different, right? APP WeChat payment needs to be applied on the WeChat open platform