iOS configuring PCH files and using

Using PCH files, you can implement macro definitions that store shared information and enable developers to develop projects efficiently and quickly. Here is the configuration process for PCH files.

1, first create a project

2. Create PCH file in Project (here's a little pit!)

3, on the basis of 2 new file ...----->other----->pch File Click Next and you need to be aware that targets must be checked!!!

4, after clicking Creat, in the project targets inside select build settings after search prefix Header. (Project_dir)/$ (PROJECT_NAME)/(PCH filename) is entered after double-clicking. pch this format)

5, the PCH file is configured successfully, then you can set up and use the PCH file

(if there are deficiencies or the wrong, thank you for correcting.) I hope everyone is getting better!!)

iOS configuring PCH files and using