Code quality check service

[at15]

I didn't find code quality check service for android, but I knew some for java

• https://codecov.io/guide
• https://docs.codacy.com/docs/supported-languages

You can setup one using travis, as for the code coverage, I guess there are tools listed in #3

Besides, Android has command line tools for lint, you can run it in travis

• http://developer.android.com/tools/help/lint.html

you can know more about travis here https://travis-ci.org/ and remember to add the badges in README, like this one https://github.com/at15/forum-search

[at15]

@gaocegege do you know other services for code quality and coverage that have java/android support? thx