java - 在应用程序启动时播放声音

Question

如何让我的应用程序在启动时播放 mp3(在我的资源中)？或者，如果我希望在单击按钮时发生这种情况呢？

Answer 1

来自 Dev Guide 的音频和视频部分:

Perhaps the most common thing to want to do is play back media (notably sound) within your own applications. Doing this is easy:

1. Put the sound (or other media resource) file into the res/raw folder of your project, where the Eclipse plugin (or aapt) will find it and make it into a resource that can be referenced from your R class

2. Create an instance of MediaPlayer, referencing that resource using MediaPlayer.create, > and then call start() on the instance:

MediaPlayer mp = MediaPlayer.create(context, R.raw.sound_file_1);
mp.start();

To stop playback, call stop(). If you wish to later replay the media, then you must reset() and prepare() the MediaPlayer object before calling start() again. (create() calls prepare() the first time.)

To pause playback, call pause(). Resume playback from where you paused with start().

所以将上面的代码示例放在启动器 Activity 的 onCreate() 或 onStart() 中，让它在启动时播放，并将它放在按钮的 onClick() 方法中以响应按钮按下。