iOS_视频后台播放+远程控制

来源：互联网发布：润和软件同花顺编辑：程序博客网时间：2024/05/14 23:44

1、Plist加入

对于长时间运行的任务，需要在Info.plist添加一行，键为UIBackgroundModes，值为一个数组，可以包含如下几个字符串：

audio
location
voip
newsstand-content
external-accessory
bluetooth-central

第2步，导入音频播放框架

引用库：

AudioToolBox.framework

MediaPlayer.framework

CoreMedia.framework

AVFoundation.framework

第3步，

在appdelegate导入

#import <AVFoundation/AVFoundation.h>

第4步，

didfinishlaunch执行自定义方法

[selfinitBackGroundPlay];

/** @programmer beyond@xsism.com *  @brief  后台播放第1步 *  @param  <#无#> *  @return <#无#> */- (void)initBackGroundPlay{    AVAudioSession *session = [AVAudioSession sharedInstance];    NSError *setCategoryError = nil;    [session setCategory:AVAudioSessionCategoryPlayback error:&setCategoryError];    NSError *activationError = nil;    [session setActive:YES error:&activationError];            //告诉系统，我们要接受远程控制事件，并在播放控制器直接进行响应    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];        }

第5步，在播放控制器中，直接响应即可

在viewDidLoad中,执行自定义方法

[selfconfigNowPlayingInfoCenter];

#pragma mark - 锁屏播放-(void)configNowPlayingInfoCenter{        if (NSClassFromString(@"MPNowPlayingInfoCenter")) {                NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];        [dict setObject:@"name" forKey:MPMediaItemPropertyTitle];        NSString *singer = [NSString stringWithFormat:@"【%@】",kAppName];        [dict setObject:singer forKey:MPMediaItemPropertyArtist];//        [dict setObject:@"beyond" forKey:MPMediaItemPropertyAlbumTitle];                UIImage *image = [UIImage imageNamed:@"ok01.jpg"];        MPMediaItemArtwork *artwork = [[MPMediaItemArtwork alloc] initWithImage:image];        [dict setObject:artwork forKey:MPMediaItemPropertyArtwork];                [[MPNowPlayingInfoCenter defaultCenter] setNowPlayingInfo:dict];            }    }#pragma mark - 直接响应远程控制// 响应远程音乐播放控制消息- (void)remoteControlReceivedWithEvent:(UIEvent *)receivedEvent{        if (receivedEvent.type == UIEventTypeRemoteControl) {                switch (receivedEvent.subtype) {            case UIEventSubtypeRemoteControlPlay:            {                NSLog(@"RemoteControlEvents: play");                [self pauseAndPlayBtnClicked:_operationView.xib_btn_pauseAndPlay];            }                break;            case UIEventSubtypeRemoteControlPause:            {                NSLog(@"RemoteControlEvents: pause");                [self pauseAndPlayBtnClicked:_operationView.xib_btn_pauseAndPlay];            }                break;            case UIEventSubtypeRemoteControlTogglePlayPause:                //                [[PlayController sharedInstance] pause];                NSLog(@"无效，RemoteControlEvents: pause");                break;            case UIEventSubtypeRemoteControlNextTrack:                //                [[PlayController sharedInstance] playModeNext];            {                NSLog(@"RemoteControlEvents: playModeNext");                [self rewindBtnClicked:_operationView.xib_btn_forward];            }                break;            case UIEventSubtypeRemoteControlPreviousTrack:                //                [[PlayController sharedInstance] playPrev];            {                NSLog(@"RemoteControlEvents: playPrev");                [self rewindBtnClicked:_operationView.xib_btn_rewind];            }                break;            default:                break;        }    }}

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