摘要： 错误：can't toast on a thread that has not called looper.prepare()https://stackoverflow.com/questions/3875184/cant-create-handler-inside-thread-that-has- 阅读全文

摘要： https://stackoverflow.com/questions/13001363/using-mediaplayer-to-play-the-same-file-multiple-times-with-overlap https://www.geeksforgeeks.org/soundpo 阅读全文