iPhone背景音樂播放器

Question

任何人都可以指導我的教程，或演示我播放背景音樂的實際代碼。我需要它能夠開始和停止。這不是一個任務，所以你知道。我的任務已經完成，我只是想添加音樂，我不知道如何。謝謝！

Answer 1

您可以使用AVAudioPlayer

//You have to import AvFoundation to use AVAudioPlayer 
#import <AVFoundation/AVFoundation.h> 

-(void) playMusicFile:(NSString *) songName 
{ 
    NSString *musicFile = [[NSBundle mainBundle] pathForResource:songName ofType:@"mp3"]; 

    NSError *soundError = nil; 
    self.audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:musicFile] error:&soundError]; 
    if(self.audioPlayer == nil) 
    { 
     NSLog(@"%@",soundError); 
    } 
    else 
    { 
     //Delegation is optional but it helps you do stuff after song finished playing etc 
     [self.audioPlayer setDelegate:self]; 
     //Set number of repeats, 0 is default plays once, negative values makes it play infinitely 
     [self.audioPlayer setNumberOfLoops:0]; 
     //Prepare to play is not always necessary, but otherwise it can take time to play 
     [self.audioPlayer prepareToPlay]; 
     [self.audioPlayer play]; 
    } 
} 

//This is the delegate called after the song finished playing, you can use it to play other songs, or do other stuff 
-(void) audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag 
{ 
    ... 
} 

停止和暫停：

//You can easily stop and pause using: 
[self.audioPlayer stop]; //Stop doesn't work as you would expect. It doesn't set the current time to 0 but only undoes the setup you had with the audioplayer. 
[self.audioPlayer pause]; 

//It is possible to call [self.audioPlayer play] after each method and playback will continue from where it left off. 

欲瞭解更多信息請訪問參考：http://developer.apple.com/library/ios/#DOCUMENTATION/AVFoundation/Reference/AVAudioPlayerClassReference/Reference/Reference.html

Answer 2

AVPlayer和AVAudioPlayer應該工作。