Introduction - If you have any usage issues, please Google them yourself
Music track music player source code can be perfect to run, you can use the progress bar and drag and drop to control the progress of music. Support the background play, but not in the notification bar to display the background to play the message. There are lyrics and album pictures to download some of the functional code, online music because of API changes in the failure. But still can be regarded as a good project that can draw lessons from. Because the project has very rich annotation, directory structure is also very simple, analysis would be easier, slightly modified can as my graduate work or a personal player design, but is not recommended for commercial use.