Why changing GitHub repository language not workin

问题:

i have been made a repository in GitHub with as Xcode project with Objective-C language.
Beside .gitignore file in root of my project made .gitattributes file and set this code in it:

* linguist-vendored
*.objective-c linguist-vendored=false

But does not show any language in Github homepage.

回答1:

The first part of .gitattributes rules must match files in the repository. Unless your Objective-C files have .objective-c for file extension, the above will not work. The following should work:

* linguist-vendored
*.c linguist-vendored=false
*.h linguist-vendored=false
*.m linguist-vendored=false

回答2:

The GitHub language indicator cannot be manually set.

It shows a breakdown of the files in your repository and the languages it determines they are written in.

See about repository languages on GitHub.