The phone screen starts with going through basic Android questions, then we jump into the coding part where I was given two questions, the first is to find the kth smallest element in a array of integers, the other is to balance the parenthesis in a parenthesis sequence (can't remember the detail). During the onsite stage. I was given 4 coding questions in total, if you familiar with leetcode.com questions they are not too difficult to answer. I can't remember each one of them but there's buy and sell stock, merge k sorted list and etc. Remeber the questions may not be exactly the same as they appear on leetcome.com. If you use the website for your interview preparation be sure not to stick to the answer. You should always be able to solve a new problem in a given time slot. Make this your goal when you do your practice. I was also given a design question asking me to design a download manager. It won't be hard if know the SDK well.