Using PCH files in Xcode

The version behind Xcode is not recommended for use with PCH files at development time, but it can be configured if you still need to use a PCH file:

1, with the shortcut key [CMD] + N new file, select the iOS other->pch file

2. pch file named prefixheader.pch

3. Once created, you can see this in the project

4. Then find prefix Header in build Settings

5. Prescompile Prefix header is set to YES to add PCH file path in Prefix header

Note: Paths are recommended for use

The PCH file can now be used normally.

Using PCH files in Xcode