在iOS应用中播放mp3文件

问题描述：

我无法弄清楚如何在iPhone游戏中播放音乐文件。在iOS应用中播放mp3文件

我创建一个游戏，我试图找出如何在应用程序启动时播放音乐。

我尝试这样做：

- (void)awakeFromNib { 

    NSString *path = [[NSBundle mainBundle] pathForResource:@"musicamenu" ofType:@"mp3"]; 

    AVAudioPlayer *theAudio = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL]; 

    [theAudio play]; 


}

你可能想看看这个前面的问题。 http://stackoverflow.com/questions/1296786/how-do-i-programmatically-play-an-mp3-on-an-iphone – dotToString

答

这就是你是如何做到的。在您的v1AppDelegate.h文件中添加

#import <UIKit/UIKit.h> 
#import <AVFoundation/AVFoundation.h> 
#import <AudioToolbox/AudioToolbox.h> 

@interface v1AppDelegate : UIResponder <UIApplicationDelegate> 
{ 
    AVAudioPlayer *myAudioPlayer; 
} 

@property (nonatomic, retain) AVAudioPlayer *myAudioPlayer; 

@property (strong, nonatomic) UIWindow *window; 

@end

现在，在您v1AppDelegate.m文件中添加此

#import "v1AppDelegate.h" 
#import <AVFoundation/AVFoundation.h> 
#import <AudioToolbox/AudioToolbox.h> 

@implementation v1AppDelegate 

@synthesize window = _window; 

@synthesize myAudioPlayer; 


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{ 

    //start a background sound 
    NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:@"Soothing_Music2_Long" ofType: @"mp3"]; 
    NSURL *fileURL = [[NSURL alloc] initFileURLWithPath:soundFilePath ];  
    myAudioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:fileURL error:nil]; 
    myAudioPlayer.numberOfLoops = -1; //infinite loop 
    [myAudioPlayer play]; 


    // Override point for customization after application launch. 
    return YES; 
}

如果你想停止或从代码中的任何地方启动这个音乐，那么只需添加本

#import "v1AppDelegate.h"  
- (IBAction)stopMusic 
    { 
     v1AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate]; 
     [appDelegate.myAudioPlayer stop]; 
    } 


    - (IBAction)startMusic 
    { 
     v1AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate]; 
     [appDelegate.myAudioPlayer play]; 
    }

我很喜欢工作！谢谢大家！ – user2444410

答

我建议加播放音乐方法applicationDidBecomeActive:方法。因为您希望每次启动应用时播放音乐。请注意，您应该持有对玩家的参考。否则音乐将不会播放。

- (void)applicationDidBecomeActive:(UIApplication *)application 
{ 
    // Play music on another queue so that the main queue is not blocked. 
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ 
     [self playMusic]; 
    }); 
} 

- (void)playMusic 
{ 
    NSString *path = [[NSBundle mainBundle] pathForResource:@"done" ofType:@"mp3"]; 
    NSError *error = nil; 
    NSURL *url = [NSURL fileURLWithPath:path]; 
    self.player = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error]; 
    [self.player play]; 
}

“请注意，你应该持有一个参考，否则音乐将不会播放“。救了我 –

答

对于雨燕3.1：

使用该两名外援：

0为发挥

private var mAudioPlayer : AVAudioPlayer?

使用此功能你是存储在您的应用程序一个声音：

import AVFoundation 
import AudioToolbox

为您AVAudioPlayer参考

func onTapSound(){ 
     let soundFile = Bundle.main.path(forResource: "slap_placeholder.wav", ofType: nil) 
     let url = URL(fileURLWithPath: soundFile!) 
     self.mAudioPlayer = try! AVAudioPlayer(contentsOf: url as URL) 
     self.mAudioPlayer?.play() 
}

在iOS应用中播放mp3文件

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