Our Android dev task: write a login/signup dialog. Shows that you have layout skills, networking skills, general Java skills, etc. Candidates either bomb it or

Our Android dev task: write a login/signup dialog. Shows that you have layout skills, networking skills, general Java skills, etc. Candidates either bomb it or nail it, no mis-hires yet after about two years. You get a real good sense of experience level, confidence, and "I like clean code" attitude.