ios - AudioServicesPlaySystemSound 知道声音何时停止

Question

我正在使用

AudioServicesPlaySystemSound(soundID);

播放声音，但我需要知道声音何时停止播放，那么这个委托(delegate)是什么？

谢谢!

Answer 1

你读过documentation吗？ ？

AudioServicesPlaySystemSound

Plays a system sound object.

void AudioServicesPlaySystemSound (
   SystemSoundID inSystemSoundID
);

Discussion This function plays a short sound (30 seconds or less in duration). Because sound might play for several seconds, this function is executed asynchronously. To know when a sound has finished playing, call the AudioServicesAddSystemSoundCompletion function to register a callback function.

This stackoverflow 问题可能会帮助您了解如何使用此回调。