How to add a. pch to a project

A. PCH is a header file that loads global variables, which can be used to put variables, fields, or import fields that are frequently used in the entire project, and so on.

The. PCH is added to the project in two main steps:

1. Create a. pch file

Select a folder, then create a file Popup page, select ios-"other-"-"PCH file"

2. Then you need to set the prefix header in the Apple LLVM 7.9-language in the build settings in targets, the path where the project is located,

This will be OK.

How to add a. pch to a project