音频播放初步认识

最新推荐文章于 2025-07-03 21:48:07 发布

原创最新推荐文章于 2025-07-03 21:48:07 发布 · 538 阅读

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本文介绍了一个简单的iOS应用中音效的加载与播放方法。通过Objective-C实现，文章展示了如何使用AudioServices加载并播放指定资源文件夹内的.wav格式音效文件，并在触摸事件结束时触发播放。

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//
//  ViewController.m


#import "ViewController.h"
#import <AVFoundation/AVFoundation.h>

@interface ViewController ()
@property(nonatomic,assign) SystemSoundID soundID;
@end

@implementation ViewController

- (SystemSoundID)soundID
{
    if (!_soundID) {
        NSURL *url = [[NSBundle mainBundle] URLForResource:@"m_03.wav" withExtension:nil];
        AudioServicesCreateSystemSoundID((__bridge CFURLRef _Nonnull)(url), &_soundID);
    }
    return _soundID;
}

- (void)viewDidLoad {
    [super viewDidLoad];

}

- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    //1.加载音效文件(短音频)
    //1个音效文件 对应一个 soundID
//    SystemSoundID soundID;
//    NSURL *url = [[NSBundle mainBundle] URLForResource:@"m_03.wav" withExtension:nil];
//    AudioServicesCreateSystemSoundID((__bridge CFURLRef _Nonnull)(url), &soundID);
    
    //2.拿到音效ID播放
    AudioServicesPlaySystemSound(self.soundID);
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    
    //销毁音频ID
    AudioServicesDisposeSystemSoundID(self.soundID);
    self.soundID = 0;
}

@end

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