好久没有写东西了，最近加班太严重，今天抽空把用到的音乐播放器DOUAudioStreamer整理一下，由于项目之前用的是AVPlayer，这个也可以，但是就是要先缓存一段时间再播放，老板看了之后要求，要变缓存变播放（有网时，点击播放按钮就立刻播放），怎么不早说！怎么不早说！怎么不早说！还能怎样？只能原谅他，继续敲代码。。。。。。（还是直接上代码吧）
一、导入三方库
pod 'DOUAudioStreamer'
或者GitHup下载地址：https://www.easck.com/p>
//音乐播放
#import "DOUAudioStreamer.h"
#import "NAKPlaybackIndicatorView.h"
#import "MusicIndicator.h"
#import "Track.h"
如图：
2.创建一个Track类，用于音乐播放的URL存放
3.需要的界面.h中，添加DOUAudioStreamer，并用单利来初始化
+ (instancetype)sharedInstance ;
@property (nonatomic, strong) DOUAudioStreamer *streamer;
如图：
在.m中实现：
static void *kStatusKVOKey = &kStatusKVOKey;
static void *kDurationKVOKey = &kDurationKVOKey;
static void *kBufferingRatioKVOKey = &kBufferingRatioKVOKey;
@property (strong, nonatomic) MusicIndicator *musicIndicator;
@property (nonatomic, strong) Track *audioTrack;
+ (instancetype)sharedInstance {
static HYNEntertainmentController *_sharedMusicVC = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
_sharedMusicVC = [[HYNEntertainmentController alloc] init];
_sharedMusicVC.streamer = [[DOUAudioStreamer alloc] init];
});
return _sharedMusicVC;
}
播放按钮事件
#pragma mark ---音乐播放按钮
-(void)playMusicStart:(UIButton *)sender
{
//通过按钮获取cell
MusicCollectionViewCell *musicCell = (MusicCollectionViewCell *)[[sender superview] superview];
if(_playFirst == 0){//_playFirst == 0首次播放，其他为暂停
NSURL *url = [NSURL URLWithString:HttpImgUrl(musicCell.model.musicUrl)];
_audioTrack.audioFileURL = url;
@try {
[self removeStreamerObserver];
} @catch(id anException){
}
//在DOUAudioStreamer进行播放时，必须先置为nil
_streamer = nil;
_streamer = [DOUAudioStreamer streamerWithAudioFile:_audioTrack];
[self addStreamerObserver];
[_streamer play];
}
if([_streamer status] == DOUAudioStreamerPaused ||
[_streamer status] == DOUAudioStreamerIdle){
[sender setBackgroundImage:[UIImage imageNamed:@"music_play_icon"] forState:UIControlStateNormal];
[_streamer play];
}else{
[sender setBackgroundImage:[UIImage imageNamed:@"music_stop_icon"] forState:UIControlStateNormal];
[_streamer pause];
}
_playFirst++;
}
