第iOS音樂后臺播放及鎖屏信息顯示

本文實例為大家分享了iOS實現(xiàn)音樂的后臺播放，以及播放時，可以控制其暫停，下一首等操作，以及鎖屏圖片歌曲名等的顯示

此實例需要真機調(diào)試，效果圖如下：

工程下載：github工程下載

實現(xiàn)步驟：

1、首先修改info.plist

2、其次引入兩個需要的框架

#importAVFoundation/AVFoundation.h

#importMediaPlayer/MediaPlayer.h

3、設(shè)置播放器及后臺播放

-(void)viewDidLoad{

[superviewDidLoad];

//設(shè)置后臺播放

[[AVAudioSessionsharedInstance]setCategory:AVAudioSessionCategoryPlaybackerror:nil];

//設(shè)置播放器

NSURL*url=[NSURLfileURLWithPath:[[NSBundlemainBundle]pathForResource:@那些花兒ofType:@mp3]];

_player=[[AVPlayeralloc]initWithURL:url];

[_playerplay];

_isPlayingNow=YES;

//后臺播放顯示信息設(shè)置

[selfsetPlayingInfo];

#pragmamark-接收方法的設(shè)置

-(void)remoteControlReceivedWithEvent:(UIEvent*)event{

if(event.type==UIEventTypeRemoteControl){//判斷是否為遠程控制

switch(event.subtype){

caseUIEventSubtypeRemoteControlPlay:

if(!_isPlayingNow){

[_playerplay];

_isPlayingNow=!_isPlayingNow;

break;

caseUIEventSubtypeRemoteControlPause:

if(_isPlayingNow){

[_playerpause];

_isPlayingNow=!_isPlayingNow;

break;

caseUIEventSubtypeRemoteControlNextTrack:

NSLog(@下一首

break;

caseUIEventSubtypeRemoteControlPreviousTrack:

NSLog(@上一首

break;

default:

break;

}

4、設(shè)置后臺播放時顯示的東西，例如歌曲名字，圖片等

-(void)setPlayingInfo{

//MediaPlayer/MediaPlayer.h

MPMediaItemArtwork*artWork=[[MPMediaItemArtworkalloc]initWithImage:[UIImageimageNamed:@pushu.jpg]];

NSDictionary*dic=@{MPMediaItemPropertyTitle:@那些花兒,

MPMediaItemPropertyArtist:@樸樹,

MPMediaItemPropertyArtwork:artWork

[[MPNowPlayingInfoCenterdefaultCenter]setNowPlayingInfo:dic];

}

5、遠程控制設(shè)置

-(void)viewDidAppear:(BOOL)animated{

//接受遠程控制

[selfbecomeFirstResponder];

[[UIApplicationsharedApplication]beginReceivingRemoteControlEvents];

-(void)viewDidDisappear:(BOOL)animated{

//取消遠程控制

[selfresignFirstResponder];

[[UIApplicat