步骤一:在resource文件夹下找到该项目的info.plist添加一个
Required background modes 的数组
并在下面添加一个元素，其值为
App plays audio
步骤二：
需要导入相应的framework和头文件
#import <AudioToolbox/AudioToolbox.h>
#import <AVFoundation/AVFoundation.h>
步骤三：
//禁止程序运行时自动锁屏
[[UIApplicationsharedApplication]setIdleTimerDisabled:YES];
步骤四：
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"]; //创建音乐文件路径
NSURL * musicURL= [[NSURLalloc]initFileURLWithPath:musicFilePath];
AVAudioPlayer * thePlayer = [[AVAudioPlayeralloc]initWithContentsOfURL:musicURLerror:nil];
[thePlayerplay];
[thePlayersetVolume:1]; //设置音量大小
thePlayer.numberOfLoops = -1;//设置音乐播放次数 -1为一直循环
[musicURLrelease];
[thePlayerrelease];
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