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步驟一:在resource文件夾下找到該項目的info.plist添加一個

Required background modes 的數組

并在下面添加一個元素，其值為

App plays audio

步驟二：

需要導入相應的framework和頭文件

#import <AudioToolbox/AudioToolbox.h>

#import <AVFoundation/AVFoundation.h>

步驟三：

//禁止程序運行時自動鎖屏

[[UIApplicationsharedApplication]setIdleTimerDisabled:YES];

步驟四：

AVAudioSession *audioSession = [AVAudioSessionsharedInstance];

NSError *err =nil;

[audioSession setCategory :AVAudioSessionCategoryPlayAndRecorderror:&err];

if(err)

{

NSLog(@"audioSession: %@ %d %@", [errdomain], [errcode], [[erruserInfo]description]);

}

[audioSessionsetActive:YESerror:&err];

err =nil;

if(err)

{

NSLog(@"audioSession: %@ %d %@", [errdomain], [errcode], [[erruserInfo]description]);

}

NSString * musicFilePath = [[NSBundlemainBundle]pathForResource:@"初音ミク-World Is Mine" ofType:@"mp3"]; //創建音樂文件路徑

NSURL * musicURL= [[NSURLalloc]initFileURLWithPath:musicFilePath];

AVAudioPlayer * thePlayer = [[AVAudioPlayeralloc]initWithContentsOfURL:musicURLerror:nil];

[thePlayerplay];

[thePlayersetVolume:1]; //設置音量大小

thePlayer.numberOfLoops = -1;//設置音樂播放次數 -1為一直循環

[musicURLrelease];

[thePlayerrelease];

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