欢迎大家来到IT世界,在知识的湖畔探索吧!
最近在学习AVFoundation框架的相关知识,写了一个基于AVPlayer的视频播放器,相关功能如下图:
代码github:https://github.com/wzpziyi1/VideoPlayer
AVFoundation都是围绕AVPlayer展开的,AVPlayer是一个用来播放基于时间的视听媒体的控制器对象。但它与我们通常理解的”控制器”不同,它不是一个视图或者窗口控制器,而是一个对播放和资源时间相关信息进行管理的对象,具体的用户界面是需要开发者自己进行编写的。
AVPlayer是一个不可见的组件,如果需要有可视化的界面,那么需要使用AVPlayerLayer类。AVPlayerLayer构建于Core Animation之上,它扩展了Core Animation的CALayer类,并通过框架在屏幕上显示视频内容(它只是用作视频内容的渲染面,其他可视化界面需要自己编写)。创建AVPlayerLayer需要一个指向AVPlayer实例的指针,这就可以将图层和播放器绑定在一起了,保证了当播放器基于时间的方法出现时使二者保持同步。
AVPlayerItem
它会建立媒体资源动态视角的数据模型,并保存AVPlayer在播放时的呈现状态。 例如seekToTime:方法:
__weak typeof(self) tmp = self; [self.player seekToTime:CMTimeMakeWithSeconds(time, NSEC_PER_SEC) completionHandler:^(BOOL finished) { if (finished) { tmp.transport.isFinishedJump = YES; } }]; //跳转到哪个时间点进行播放
欢迎大家来到IT世界,在知识的湖畔探索吧!
AVPlayerItem有两个很重要的属性,一个是status,一个是loadedTimeRanges。使用kvo监听status属性值的改变,当status变为 AVPlayerStatusReadyToPlay的时候,表示可以开始播放了。而监听loadedTimeRanges属性,可以知道视频缓存到哪样一个时间点了:
欢迎大家来到IT世界,在知识的湖畔探索吧!//kvo - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSString *,id> *)change context:(void *)context { AVPlayerItem *item = (AVPlayerItem *)object; if ([keyPath isEqualToString:@"status"]) { NSLog(@"%d", (int)[item status]); if ([item status] == AVPlayerStatusReadyToPlay) { [self monitorPlayingStatusWithItem:item]; } } else if ([keyPath isEqualToString:@"loadedTimeRanges"]) //缓冲 { self.bufferTime = [self availableBufferTime]; if (!self.isFetchTotalDuration) { //获取视频总长度 NSTimeInterval totalDuration = CMTimeGetSeconds(item.duration); self.transport.durationTime = totalDuration; self.isFetchTotalDuration = YES; } if (self.transport.currentPlayTime <= self.transport.durationTime - 12) { //如果缓冲不够 if (self.bufferTime <= self.transport.currentPlayTime + 10) { self.transport.isBuffering = YES; } else { self.transport.isBuffering = NO; } } else { self.transport.isBuffering = NO; } self.transport.currentBufferTime = self.bufferTime; } else { [super observeValueForKeyPath:keyPath ofObject:object change:change context:context]; } }
在这段代码里面,我是设置了,如果当前播放时间+10s > 缓冲得到的总时间,那么就loading,直到缓冲时间总是大于当前播放时间10s,才开始播放。
CMTime
AVFoundation使用基于CMTime的数据结构来展示时间信息,它表现为分数值的方式,具体定义如下:
/*! @typedef CMTime @abstract Rational time value represented as int64/int32. */ typedef struct { CMTimeValue value; /*! @field value The value of the CMTime. value/timescale = seconds. */ CMTimeScale timescale; /*! @field timescale The timescale of the CMTime. value/timescale = seconds. */ CMTimeFlags flags; /*! @field flags The flags, eg. kCMTimeFlags_Valid, kCMTimeFlags_PositiveInfinity, etc. */ CMTimeEpoch epoch; /*! @field epoch Differentiates between equal timestamps that are actually different because of looping, multi-item sequencing, etc. Will be used during comparison: greater epochs happen after lesser ones. Additions/subtraction is only possible within a single epoch, however, since epoch length may be unknown/variable. */ } CMTime;
在这个结构中,主要关注value和timescale,它们在时间呈现中分别作为分子和分母。
欢迎大家来到IT世界,在知识的湖畔探索吧! CMTimeMake(1, 2); //0.5s CMTimeMake(4, 1); //4s CMTimeMakeWithSeconds(60, NSEC_PER_SEC); //表示将60秒转化为CMTime时间格式
在这个demo中,可视化界面的编写主要在ZYOverlayView.h类里面,它负责用户的绝大部分交互事件。ZYOverlayView遵守ZYTransport协议,这个协议提供了与ViewController里面的AVPlayer进行通信的接口,相应代码如下:
#import <UIKit/UIKit.h> #import <AVFoundation/AVFoundation.h> @protocol ZYTransportDelegate <NSObject> - (void)play; - (void)pause; - (void)stop; /** * 跳转到某个时间点播放 * */ - (void)jumpedToTime:(NSTimeInterval)time; /** * 视频横屏 * * @param flag YES为是 */ - (void)fullScreenOrNormalSizeWithFlag:(BOOL)flag; @end @protocol ZYTransport <NSObject> /** * 是否正在缓冲 */ @property (nonatomic, assign) BOOL isBuffering; /** * 是否完成跳转 */ @property (nonatomic, assign) BOOL isFinishedJump; @property (nonatomic, assign) NSTimeInterval durationTime; @property (nonatomic, weak) id<ZYTransportDelegate>delegate; /** * 设置当前播放的时间点 */ @property (nonatomic, assign) NSTimeInterval currentPlayTime; /** * 设置当前缓冲的时间点 */ @property (nonatomic, assign) NSTimeInterval currentBufferTime; /** * 视频播放完毕 */ - (void)playbackComplete; @end
如果要视频可以显示,那么一定需要AVPlayeLayer来做视频内容的渲染面,上面提到了可视化界面的编写是在ZYPlayerView类里面实现的,所在我在这个类里面加载ZYOverlayView,以便实现相关功能的封装。
#import <UIKit/UIKit.h> #import <AVFoundation/AVFoundation.h> #import "ZYTransport.h" @interface ZYPlayerView : UIView @property (nonatomic, strong) AVPlayer *player; @property (nonatomic, weak) id<ZYTransport>transport; @end #import "ZYPlayerView.h" #import "ZYOverlayView.h" @interface ZYPlayerView @property (nonatomic, strong) ZYOverlayView *overlayView; @end @implementation ZYPlayerView + (Class)layerClass { return [AVPlayerLayer class]; } - (instancetype)init { if (self = [super init]) { [self commitInit]; } return self; } - (void)awakeFromNib { [super awakeFromNib]; [self commitInit]; } - (void)commitInit { self.overlayView = [ZYOverlayView overlayView]; [self addSubview:self.overlayView]; [self.overlayView autoPinEdgesToSuperviewEdgesWithInsets:UIEdgeInsetsZero]; } - (AVPlayer *)player { return [(AVPlayerLayer *)[self layer] player]; } - (void)setPlayer:(AVPlayer *)player { [(AVPlayerLayer *)[self layer] setPlayer:player]; } - (id<ZYTransport>)transport { return self.overlayView; } @end
ViewController主要是在做监听播放状态、缓冲状态,与可视化界面之间的通信,将监听到的当前播放时间、当前缓冲时间、播放结束等传递给遵守了ZYTransport协议的ZYOverlayView实例,在OverlayView实例里面进行相关操作。与可视化界面之间的通信主要表现为,暂停、播放、停止、全屏等,这些在ZYTransport协议里面都有相关的代理方法。
#import "ZYPlayerVc.h" #import "ZYPlayerView.h" #import <AVFoundation/AVFoundation.h> #import "ZYTransport.h" @interface ZYPlayerVc <ZYTransportDelegate> @property (strong, nonatomic) ZYPlayerView *playerView; @property (nonatomic, strong) AVPlayer *player; @property (nonatomic, strong) AVPlayerItem *playerItem; @property (nonatomic, weak) id<ZYTransport>transport; @property (nonatomic, assign) CGFloat scale; /** * 是否获取了视频长度 */ @property (nonatomic, assign) BOOL isFetchTotalDuration; @property (nonatomic, strong) id timeObserver; @property (nonatomic, assign) NSTimeInterval bufferTime; @end @implementation ZYPlayerVc - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view from its nib. self.isFetchTotalDuration = NO; NSURL *url = [NSURL URLWithString:@"http://v.jxvdy.com/sendfile/w5bgP3A8JgiQQo5l0hvoNGE2H16WbN09X-ONHPq3P3C1BISgf7C-qVs6_c8oaw3zKScO78I--b0BGFBRxlpw13sf2e54QA"]; self.playerItem = [[AVPlayerItem alloc] initWithURL:url]; //监听status属性 [self.playerItem addObserver:self forKeyPath:@"status" options:NSKeyValueObservingOptionNew context:nil]; [self.playerItem addObserver:self forKeyPath:@"loadedTimeRanges" options:NSKeyValueObservingOptionNew context:nil]; self.player = [[AVPlayer alloc] initWithPlayerItem:self.playerItem]; self.playerView.player = self.player; self.playerView.frame = CGRectMake(0, 30, kScreenW, kScreenW * kScreenW / kScreenH); self.scale = kScreenW / self.playerView.height; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayDidEnd:) name:AVPlayerItemDidPlayToEndTimeNotification object:nil]; } - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; [[UIApplication sharedApplication] setStatusBarHidden:YES]; } - (ZYPlayerView *)playerView { if (_playerView == nil) { _playerView = [[ZYPlayerView alloc] init]; _playerView.backgroundColor = [UIColor blackColor]; self.transport = _playerView.transport; self.transport.isBuffering = YES; self.transport.delegate = self; [self.view addSubview:_playerView]; } return _playerView; } - (void)moviePlayDidEnd:(NSNotification *)note { self.isFetchTotalDuration = NO; __weak typeof(self) tmp = self; [self.player seekToTime:kCMTimeZero completionHandler:^(BOOL finished) { tmp.transport.currentPlayTime = 0; tmp.transport.currentBufferTime = 0; tmp.transport.durationTime = 0; }]; } //kvo - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSString *,id> *)change context:(void *)context { AVPlayerItem *item = (AVPlayerItem *)object; if ([keyPath isEqualToString:@"status"]) { NSLog(@"%d", (int)[item status]); if ([item status] == AVPlayerStatusReadyToPlay) { [self monitorPlayingStatusWithItem:item]; } } else if ([keyPath isEqualToString:@"loadedTimeRanges"]) //缓冲 { self.bufferTime = [self availableBufferTime]; if (!self.isFetchTotalDuration) { //获取视频总长度 NSTimeInterval totalDuration = CMTimeGetSeconds(item.duration); self.transport.durationTime = totalDuration; self.isFetchTotalDuration = YES; } if (self.transport.currentPlayTime <= self.transport.durationTime - 7) { //如果缓冲不够 if (self.bufferTime <= self.transport.currentPlayTime + 5) { self.transport.isBuffering = YES; } else { self.transport.isBuffering = NO; } } else { self.transport.isBuffering = NO; } self.transport.currentBufferTime = self.bufferTime; } else { [super observeValueForKeyPath:keyPath ofObject:object change:change context:context]; } } /** * 监听播放状态 * */ - (void)monitorPlayingStatusWithItem:(AVPlayerItem *)item { __weak typeof(self) tmp = self; self.timeObserver = [self.playerView.player addPeriodicTimeObserverForInterval:CMTimeMake(1, 1) queue:dispatch_get_main_queue usingBlock:^(CMTime time) { NSTimeInterval currentTime = CMTimeGetSeconds(time); tmp.transport.currentPlayTime = currentTime; }]; } /** * 可用的播放时长(缓冲的时长) * */ - (NSTimeInterval)availableBufferTime { NSArray *loadTimeRanges = [[self.player currentItem] loadedTimeRanges]; //获取缓冲区域 CMTimeRange range = [loadTimeRanges.firstObject CMTimeRangeValue]; NSTimeInterval startTime = CMTimeGetSeconds(range.start); NSTimeInterval duration = CMTimeGetSeconds(range.duration); return startTime + duration; } #pragma mark ----ZYTransportDelegate - (void)play { [self.playerView.player play]; } - (void)pause { [self.playerView.player pause]; } - (void)stop { self.isFetchTotalDuration = NO; [self moviePlayDidEnd:nil]; } /** * 跳转到某个时间点播放 * */ - (void)jumpedToTime:(NSTimeInterval)time { __weak typeof(self) tmp = self; [self.player seekToTime:CMTimeMakeWithSeconds(time, NSEC_PER_SEC) completionHandler:^(BOOL finished) { if (finished) { tmp.transport.isFinishedJump = YES; } }]; } /** * 视频横竖屏 * * @param flag YES为是 */ - (void)fullScreenOrNormalSizeWithFlag:(BOOL)flag { if (flag) { CGFloat moveY = self.view.center.y - self.playerView.center.y; CGAffineTransform tmpTransform = CGAffineTransformScale(CGAffineTransformMakeTranslation(0, moveY), self.scale, self.scale); CGAffineTransform transform = CGAffineTransformRotate(tmpTransform, - M_PI_2); [UIView animateWithDuration:0.25 animations:^{ self.playerView.transform = transform; }]; } else { [UIView animateWithDuration:0.25 animations:^{ self.playerView.transform = CGAffineTransformIdentity; }]; } } - (void)dealloc { [self.playerItem removeObserver:self forKeyPath:@"status"]; [self.playerItem removeObserver:self forKeyPath:@"loadedTimeRanges"]; [self.playerView.player removeTimeObserver:self.timeObserver]; [[NSNotificationCenter defaultCenter] removeObserver:self]; }
ZYOverlayView里面最主要处理的是一个拖动滑块的事件和5秒后如果没有接到触碰事件隐藏Tool。拖动滑块的话,我是弄了一个pan手势,然后在里面计算相关位置的问题。这里有一个巨坑,一开始我并没有给滑块设置layout,只是想通过改变滑块的center来做到位置随着拖动长度的改变而改变,却发现它在上下两个Tool View隐藏的时候,回到了它的初始位置,后来给它加上layout,这个bug消失,暂时没找到bug产生原因。
基于这样一个bug,我本来是想把所有的布局改成frame布局的,但是改完之后发现,底部的Tool View根本不显示,又是一个未知原因的bug。找了很久,没明白导致这个bug产生的原因……所有我就都改成layout布局,并且未了防止总是刷新layout,在改变const的同时,将它们的frame也相应的改变了。
没有接到触碰事件隐藏Tool,是基于定时器实现的。每隔五秒,如果在五秒内有接受到任意触碰事件,就让定时器先invalidate,在resetTimer,这样确保定时器时间可以实时处于更新状态。相应代码:
#import <UIKit/UIKit.h> #import "ZYTransport.h" @interface ZYOverlayView : UIView <ZYTransport> @property (nonatomic, assign) NSTimeInterval durationTime; @property (nonatomic, weak) id<ZYTransportDelegate>delegate; /** * 是否正在缓冲 */ @property (nonatomic, assign) BOOL isBuffering; @property (nonatomic, assign) BOOL isFinishedJump; @property (nonatomic, assign) NSTimeInterval currentPlayTime; @property (nonatomic, assign) NSTimeInterval currentBufferTime; + (instancetype)overlayView; @end #import "ZYOverlayView.h" @interface ZYOverlayView /** * 总进度 */ @property (weak, nonatomic) IBOutlet UIView *totalProgressView; @property (weak, nonatomic) IBOutlet UIView *bufferProgressView; /** * 进度上面的显示时间 */ @property (weak, nonatomic) IBOutlet UIButton *progressTimeBtn; /** * 当前播放时间VIew */ @property (weak, nonatomic) IBOutlet UILabel *currentTimeLabel; /** * 总进度View */ @property (weak, nonatomic) IBOutlet UILabel *totalTimeLabel; /** * 滑块 */ @property (weak, nonatomic) IBOutlet UIImageView *sliderView; /** * 当前缓冲进度的宽度 */ @property (weak, nonatomic) IBOutlet NSLayoutConstraint *currentProgressConW; @property (weak, nonatomic) IBOutlet UIView *topView; @property (weak, nonatomic) IBOutlet UIView *bottomView; @property (weak, nonatomic) IBOutlet UIButton *playOrPauseBtn; @property (weak, nonatomic) IBOutlet UIActivityIndicatorView *indicatorView; @property (weak, nonatomic) IBOutlet NSLayoutConstraint *topViewConTop; @property (weak, nonatomic) IBOutlet NSLayoutConstraint *bottomViewConBottom; @property (weak, nonatomic) IBOutlet NSLayoutConstraint *sliderConLeft; @property (weak, nonatomic) IBOutlet NSLayoutConstraint *progressTimeConLeft; /** * 是否为横屏 */ @property (nonatomic, assign) BOOL isfullScreen; /** * 控制top\bottom View的隐藏定时器 */ @property (nonatomic, strong) NSTimer *timer; /** * 判断是否需要控制top/bottom View隐藏 */ @property (nonatomic, assign) BOOL isControlHidden; /** * top\bottom View是否正在展示 */ @property (nonatomic, assign) BOOL isShowing; /** * 不是由于缓冲或者拖动滑块导致的暂停(也就是必然的暂停,交互时的暂停) */ @property (nonatomic, assign) BOOL isCertainPause; /** * 是否正在拖动滑块 */ @property (nonatomic, assign) BOOL isDraggingSlider; @end @implementation ZYOverlayView + (instancetype)overlayView { return [[self alloc] init]; } - (instancetype)init { if (self = [super init]) { self = [[[NSBundle mainBundle] loadNibNamed:@"ZYOverlayView" owner:nil options:nil] lastObject]; [self commitInit]; } return self; } - (void)commitInit { self.isfullScreen = NO; self.isControlHidden = YES; self.isShowing = YES; self.indicatorView.hidden = YES; self.isCertainPause = NO; self.isDraggingSlider = NO; self.progressTimeBtn.hidden = YES; [self.indicatorView startAnimating]; self.layer.masksToBounds = YES; self.sliderView.userInteractionEnabled = YES; UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(draggingSlider:)]; [self.sliderView addGestureRecognizer:panRecognizer]; [self resetTimer]; } - (void)setDurationTime:(NSTimeInterval)durationTime { _durationTime = durationTime; self.totalTimeLabel.text = [self converTimeToStringWithTime:durationTime]; } - (void)setIsBuffering:(BOOL)isBuffering { _isBuffering = isBuffering; if (self.isCertainPause) return; self.isCertainPause = NO; //由btn的tag来判断此次事件是交互的暂停,还是缓冲导致的暂停 self.playOrPauseBtn.tag = 1; if (isBuffering) { self.indicatorView.hidden = NO; self.playOrPauseBtn.enabled = NO; if (self.playOrPauseBtn.selected) { [self clickPlayOrPauseBtn:self.playOrPauseBtn]; } } else { self.indicatorView.hidden = YES; self.playOrPauseBtn.enabled = YES; if (!self.playOrPauseBtn.selected) { [self clickPlayOrPauseBtn:self.playOrPauseBtn]; } } self.playOrPauseBtn.tag = 0; } - (void)setCurrentPlayTime:(NSTimeInterval)currentPlayTime { _currentPlayTime = currentPlayTime; if (!self.isDraggingSlider) { self.currentTimeLabel.text = [self converTimeToStringWithTime:currentPlayTime]; self.sliderView.centerX = (currentPlayTime / _durationTime) * self.totalProgressView.width; _sliderConLeft.constant = self.totalProgressView.x + self.sliderView.centerX - self.sliderView.width / 2; } } - (void)setCurrentBufferTime:(NSTimeInterval)currentBufferTime { _currentBufferTime = currentBufferTime; self.bufferProgressView.width = self.totalProgressView.width * currentBufferTime / _durationTime; self.currentProgressConW.constant = self.totalProgressView.width * currentBufferTime / _durationTime; } - (void)setIsFinishedJump:(BOOL)isFinishedJump { _isFinishedJump = isFinishedJump; if (isFinishedJump) { self.isDraggingSlider = NO; } _isFinishedJump = NO; } - (IBAction)clickFinishBtn:(id)sender { [self.timer invalidate]; if ([self.delegate respondsToSelector:@selector(stop)]) { [self.delegate stop]; } [self resetTimer]; } - (IBAction)clickFillScreenBtn:(id)sender { [self.timer invalidate]; self.isfullScreen = !self.isfullScreen; if ([self.delegate respondsToSelector:@selector(fullScreenOrNormalSizeWithFlag:)]) { [self.delegate fullScreenOrNormalSizeWithFlag:self.isfullScreen]; } [self resetTimer]; } - (IBAction)clickPlayOrPauseBtn:(UIButton *)sender { [self.timer invalidate]; [self resetTimer]; if (!sender.tag && sender.selected) { self.isCertainPause = YES; } else { self.isCertainPause = NO; } sender.selected = !sender.selected; if (sender.selected) { if ([self.delegate respondsToSelector:@selector(play)]) { [self.delegate play]; } } else { if ([self.delegate respondsToSelector:@selector(pause)]) { [self.delegate pause]; } } } /** * 拖动滑块的时候 * */ - (void)draggingSlider:(UIPanGestureRecognizer *)recognizer { [self.timer invalidate]; CGPoint point = [recognizer translationInView:self.bottomView]; [recognizer setTranslation:CGPointZero inView:self.bottomView]; CGFloat x = point.x; self.isDraggingSlider = YES; if (recognizer.state == UIGestureRecognizerStateEnded) { [self resetTimer]; self.progressTimeBtn.hidden = YES; CGFloat jumpedTime = self.durationTime * (self.sliderView.centerX - self.totalProgressView.x) / self.totalProgressView.width; if ([self.delegate respondsToSelector:@selector(jumpedToTime:)]) { [self.delegate jumpedToTime:jumpedTime]; } } else { self.progressTimeBtn.hidden = NO; self.sliderView.centerX += x; CGPoint point = [self.bottomView convertPoint:self.sliderView.center toView:self]; self.progressTimeBtn.centerY = point.y - 40; self.progressTimeBtn.centerX = point.x; if (self.sliderView.centerX > self.totalProgressView.x + self.totalProgressView.width) { self.sliderView.centerX = self.totalProgressView.x + self.totalProgressView.width; } if (self.sliderView.centerX < self.totalProgressView.x) { self.sliderView.centerX = self.totalProgressView.x; } //取消一切动画效果(一般来说,用来禁止隐式动画) [UIView setAnimationsEnabled:NO]; CGFloat jumpedTime = self.durationTime * (self.sliderView.centerX - self.totalProgressView.x) / self.totalProgressView.width; NSString *timeStr = [self converTimeToStringWithTime:jumpedTime]; self.progressTimeBtn.titleLabel.text = timeStr; [self.progressTimeBtn setTitle:timeStr forState:UIControlStateNormal]; [UIView setAnimationsEnabled:YES]; self.progressTimeConLeft.constant = self.sliderView.centerX - self.progressTimeBtn.width / 2; _sliderConLeft.constant = self.sliderView.centerX - self.sliderView.width / 2; } } #pragma mark ----NSTimer相关操作 - (void)resetTimer { [self.timer invalidate]; self.timer = nil; self.timer = [NSTimer scheduledTimerWithTimeInterval:5 target:self selector:@selector(updateTimer) userInfo:nil repeats:NO]; } - (void)updateTimer { if (!self.timer.isValid || !self.timer || !self.isControlHidden) return; [self hideTopAndBottomView]; } #pragma mark ----控制top\bottom 隐藏or显示相关逻辑 - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { [self showTopAndBottomView]; } - (void)showTopAndBottomView { [self.timer invalidate]; if (!self.isShowing) { self.topView.hidden = NO; self.bottomView.hidden = NO; self.topViewConTop.constant = 0; self.bottomViewConBottom.constant = 0; [UIView animateWithDuration:0.3 animations:^{ [self layoutIfNeeded]; }completion:^(BOOL finished) { self.isShowing = YES; self.isControlHidden = YES; }]; } [self resetTimer]; } - (void)hideTopAndBottomView { [self.timer invalidate]; if (self.isShowing) { self.topViewConTop.constant = -50; self.bottomViewConBottom.constant = -50; [UIView animateWithDuration:0.3 animations:^{ [self layoutIfNeeded]; } completion:^(BOOL finished) { self.topView.hidden = YES; self.bottomView.hidden = YES; self.isShowing = NO; self.isControlHidden = NO; }]; } } #pragma mark ----other - (NSString *)converTimeToStringWithTime:(NSTimeInterval)time { int hour = time / 60 / 60; int minute = (time - hour * 60 * 60) / 60; int second = (int)time % 60; return [NSString stringWithFormat:@"%02d:%02d:%02d", hour, minute, second]; } - (void)layoutSubviews { [super layoutSubviews]; } @end
代码github地址:https://github.com/wzpziyi1/VideoPlayer
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