如何在目标C iPhone编码播放声音 [英] How to play a sound in objective C iphone coding

问题描述

我有一个应用程序我的工作，它使用了一些硬件传感器来提供在屏幕上的数据，也就是用数字更新标签。我想要一个播放声音时的数量是超过100什么的。例如，假设它是阅读数字，那么所有的突然找到一个好去处（或其他），那么我想一个声音播放或一盏灯，照亮了。我是一个绝对的初学者，这将是很好，如果答案是容易让初学者绝对理解。

I have an app I am working on and It uses some of the hardware sensors to provide data on screen, there is a Label that updates with the number. I want a sound to play whenever the number is above 100 or something. For example, say it was reading numbers then all of the sudden it finds a good spot (or whatever), then I would like a sound to play or a light to light up. I am an absolute beginner and it would be nice if the answer would be easy for a absolute beginner to understand.

推荐答案

我使用的系统AudioToolbox.framework在我简单的玩游戏的声音。我说这个静态函数共同MyGame类：

I am using the system AudioToolbox.framework for playing sounds in my simple game. I added this static function to common MyGame class:

+ (SystemSoundID) createSoundID: (NSString*)name
{
  NSString *path = [NSString stringWithFormat: @"%@/%@",
                     [[NSBundle mainBundle] resourcePath], name];


  NSURL* filePath = [NSURL fileURLWithPath: path isDirectory: NO];
  SystemSoundID soundID;
  AudioServicesCreateSystemSoundID((__bridge CFURLRef)filePath, &soundID);
  return soundID;
} 

我添加了Morse.aiff文件，项目资源和（任何）类的初始化有以下初始化它：

I added the "Morse.aiff" file to project Resources and initialized it in (any) class initialization with the following:

self.mySound = [MyGame createSoundID: @"Morse.aiff"];

然后我打的声音，这个调用：

And then I played sound with this call:

AudioServicesPlaySystemSound(mySound);

另外，不要忘记导入AudioServices.h文件。

Also, don't forget to import AudioServices.h file.

这声音工具箱也能起到不同的声音格式。

This audio toolbox can play also different sound formats.

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