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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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