效果图:
看了一些githup上star比较多的一些播放器,比如ZFPlayer,CLPlayer。关于全屏切换以及切换播放源的实现基本一样,但是在全屏切换ZFPlayer实现不是很好。
ZFPlayer关闭了当前控制器的旋转属性才可以旋转。代码片段:
// 返回值要必须为NO - (BOOL)shouldAutorotate { return NO; } - (UIStatusBarStyle)preferredStatusBarStyle { // 这里设置横竖屏不同颜色的statusbar // if (ZFPlayerShared.isLandscape) { // return UIStatusBarStyleDefault; // } return UIStatusBarStyleLightContent; } - (BOOL)prefersStatusBarHidden { return ZFPlayerShared.isStatusBarHidden; }
如果shouldAutorotate返回为YES,全屏切换就会出问题。
CLPlayer的作者提供了一种思路,当页面可以进行旋转的时候,直接利用KVC设置旋转即可.
[[UIDevice currentDevice] setValue:[NSNumber numberWithInteger:UIInterfaceOrientationLandscapeRight] forKey:@"orientation"];
当页面不可以旋转的时候,可以旋转当前视图。
//播放器所在控制器不支持旋转,采用旋转view的方式实现 if (oriention == UIInterfaceOrientationLandscapeLeft){ [UIView animateWithDuration:0.25 animations:^{ self.transform = CGAffineTransformMakeRotation(M_PI / 2); }]; [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeRight animated:NO]; }else if (oriention == UIInterfaceOrientationLandscapeRight) { [UIView animateWithDuration:0.25 animations:^{ self.transform = CGAffineTransformMakeRotation( - M_PI / 2); }]; [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeLeft animated:NO]; }
补充一点:当前页面旋转以及不可旋转有一个区别:旋转的方向是相反的,需要我们做个判断:
if (orientation == UIDeviceOrientationLandscapeLeft) { if (self.isLandScape) { //因为受控制器的影响是反的 [self setOrientationLandscapeConstraint:UIInterfaceOrientationLandscapeRight]; }else{ [self setOrientationLandscapeConstraint:UIInterfaceOrientationLandscapeLeft]; } }else if (orientation == UIDeviceOrientationLandscapeRight){ if (self.isLandScape) { [self setOrientationLandscapeConstraint:UIInterfaceOrientationLandscapeLeft]; }else{ [self setOrientationLandscapeConstraint:UIInterfaceOrientationLandscapeRight]; }
之前都是使用使用私有的API进行旋转,可以了解一下,尽管可以上架,当时有一定的风险:
if ([[UIDevice currentDevice] respondsToSelector:@selector(setOrientation:)]) { SEL selector = NSSelectorFromString(@"setOrientation:"); NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[UIDevice instanceMethodSignatureForSelector:selector]]; [invocation setSelector:selector]; [invocation setTarget:[UIDevice currentDevice]]; int val = UIInterfaceOrientationLandscapeRight; [invocation setArgument:&val atIndex:2]; [invocation invoke]; }
因为私有API的风险,所以基本上在切换横屏的时候,当前播放器是加在keyWindow上的。
关于切换播放源,我们只需要移除当前playerItem的通知、观察者,重置播放器即可。
-(void)setCurrentModel:(LXPlayModel *)currentModel{ _currentModel = currentModel; self.contollView.playTitle = _currentModel.videoTitle; [self addPlayerToFatherView:_currentModel.fatherView]; //播放前准备 [self readyToPlay]; } #pragma mark---播放前的准备-- -(void)readyToPlay{ self.backgroundColor = [UIColor blackColor]; self.playerItem =[AVPlayerItem playerItemWithAsset:[AVAsset assetWithURL:[NSURL URLWithString:self.currentModel.playUrl]]]; [self.contollView showLoadingAnimation:YES]; } -(void)setPlayerItem:(AVPlayerItem *)playerItem{ if (_playerItem) { //移除观察者 [self removeObserver]; //重置播放器 [self resetPlayer]; self.panRecognizer.enabled = NO; } _playerItem = playerItem; self.player =[AVPlayer playerWithPlayerItem:_playerItem]; self.playerLayer = [AVPlayerLayer playerLayerWithPlayer:self.player]; self.playerLayer.videoGravity = AVLayerVideoGravityResizeAspect; //设置静音模式播放声音 // AVAudioSession * session = [AVAudioSession sharedInstance]; // [session setCategory:AVAudioSessionCategoryPlayback error:nil]; // [session setActive:YES error:nil]; [self addNotificationAndObserver]; } #pragma mark--重置播放器--- -(void)resetPlayer{ self.playState = LXPlayerStateStopped; self.isEnd = NO; [self.playerLayer removeFromSuperlayer]; self.player = nil; [self.contollView resetPlayState]; [self recoveryHideSelector]; }
关于单击显示以及双击暂停播放,处理如下:
// 解决点击当前view时候响应其他控件事件 [self.singleTap setDelaysTouchesBegan:YES]; [self.doubleTap setDelaysTouchesBegan:YES]; // 双击失败响应单击事件 [self.singleTap requireGestureRecognizerToFail:self.doubleTap];
我们需要开启定时器显示以及隐藏控制层,但是当有手势或者触摸作用在播放器的时候,会和定时器冲突。我们需要的是在当前屏幕接收事件的时候定时器不起作用,所有需要在接收手势的地方做处理,5秒后用户没有操作恢复定时器,时间可以自己设定:
-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{ if (touch.view) { [self cancelHideSelector]; [self recoveryHideSelector]; } return YES; }
#pragma mark--恢复定时器-- -(void)recoveryHideSelector{ [self performSelector:@selector(hideControllView) withObject:nil afterDelay:5]; } #pragma mark---取消定时器 -(void)cancelHideSelector{ [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(hideControllView) object:nil]; }
关于全屏处理屏幕亮度和音量还是借鉴上面两个播放器,代码几乎都一样,就不多说了。
还有一点:ZFPlayer,CLPlayer 并没有对slider做处理。我们经常会看到播放器,点击slider会快进到某个进度,或者slider会有一个平移手势,以此来快进快退。所以我也对slider做了处理。
//slide平移手势的回调 self.contollView.panBegin = ^{ weakSelf.isDragged = YES; if (!weakSelf.contollView) { weakSelf.contollView.isShow = YES; } [weakSelf cancelHideSelector]; }; self.contollView.getSlideValue = ^(CGFloat value) { // 当前frame宽度 * 总时长 / 总frame长度 = 当前时间 CGFloat duration = CMTimeGetSeconds([weakSelf.player.currentItem duration]); int time = duration * value; // 更新时间 weakSelf.contollView.startTime = [LXAVPlayView durationStringWithTime:(NSInteger) time]; }; self.contollView.panEnd = ^(CGFloat value) { CGFloat duration = CMTimeGetSeconds([weakSelf.player.currentItem duration]); int time = duration * value; weakSelf.isDragged = YES; [weakSelf seekToTime:time completionHandler:nil]; }; self.contollView.tapSlider = ^(CGFloat value) { // 当前frame宽度 * 总时长 / 总frame长度 = 当前时间 weakSelf.isDragged = YES; CGFloat duration = CMTimeGetSeconds([weakSelf.player.currentItem duration]); int time = duration * value; // 更新时间 weakSelf.contollView.startTime = [LXAVPlayView durationStringWithTime:(NSInteger) time]; [weakSelf seekToTime:time completionHandler:nil]; };
关于播放器的释放,本来是打算移除通知,置空player全部放在dellloc中,结果发现返回的时候播放器会延迟销毁。所以就把销毁播放器放在当前页面即将消失的时候。
-(void)viewWillDisappear:(BOOL)animated{ [super viewWillDisappear:animated]; [self.playerview destroyPlayer]; }
最后
注意点基本上已经介绍完了,因为不太喜欢delegate的冗余,所以代码中基本上都使用了block回调,本意是希望代码简洁一点,结果发现代码量依旧不少。
demo 地址: LXPlayer
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