AVPlayer做的一个小视频播放器，包含快进快退音量调节等基本功能

用AVFoundation的AVPlayer做的一个小视频播放器，包含左滑快退，右滑快进，上滑音量加，下滑音量减等基本功能。
支持HLS协议和HTTP协议的视频。

#import "AppDelegate.h"
import "PlayViewController.h"
@interface AppDelegate ()
@end
@implementation AppDelegate

 (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 PlayViewController *player=[[PlayViewController alloc]init];
 //HLS协议视屏
 //http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8
 //HTTP视频
 //http://www.modrails.com/videos/passenger_nginx.mov
 player.urlString=@"http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8";
 player.title=@"播放测试";
 self.window.rootViewController=player;
 return YES;
 }
 

@end

#import "PlayViewController.h"
import 
import 
import "Tools.h"
import "FGGReachability.h"
@interface PlayViewController ()
 @property(nonatomic,strong)AVPlayer *player;
 @property(nonatomic,strong)AVPlayerItem *item;
 @property(nonatomic,strong)NSString *totalTime;
 @property(nonatomic,assign)BOOL isPlaying;
 @property(nonatomic,strong)id timeObserver;
 @property(nonatomic,strong)UIProgressView *progress;
@property(nonatomic,strong)UISlider *slider; //进度slider
 @property(nonatomic,strong)UISlider *volumeSlider;//音量slider
@property(nonatomic,strong)UIButton *playBtn;
 @property(nonatomic,strong)UILabel *timeLabel;
 @property(nonatomic,strong)id playbackTimeObserver;
//快进
 @property(nonatomic,strong)UIImageView *forward;
 //快退
 @property(nonatomic,strong)UIImageView *backward;
@property(nonatomic,strong)UILabel *volumeLabel;//调节音量时显示当前音量
 @property(nonatomic,strong)UIButton *shareBtn;//分享
//加载指示器
 @property(nonatomic,strong)UIActivityIndicatorView *indicator;
//判断网络
 @property(nonatomic,strong)Reachability *reach;
@end
define kWidth ([UIScreen mainScreen].bounds.size.width)
define kHeight ([UIScreen mainScreen].bounds.size.height)
@implementation PlayViewController
-(void)viewWillAppear:(BOOL)animated
 {
 [super viewWillAppear:animated];
 // 隐藏导航栏
 self.navigationController.navigationBarHidden=YES;
 }
 -(void)showIndicator
 {
 _indicator=[[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
 _indicator.center=CGPointMake(kHeight/2, kWidth/2);
 [self.view addSubview:_indicator];
 [_indicator startAnimating];
 }
 //隐藏状态栏

(BOOL)prefersStatusBarHidden
 {
 return YES;
 }
 (void)viewDidLoad
 {
 [super viewDidLoad];
 self.view.backgroundColor=[UIColor blackColor];
 //显示网络记载指示器
 [self showIndicator];
 NSLog(@"\n-->%@\n-->%@",self.urlString,self.videoTitle);
 //通知中心注册一条监听网络状态的通知
 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(estimateNetworkStatus) name:kReachabilityChangedNotification object:nil];
 _reach=[Reachability reachabilityForInternetConnection];
 [_reach startNotifier];
 [self estimateNetworkStatus];
 _item=[[AVPlayerItem alloc] initWithURL:[NSURL URLWithString:self.urlString]];
 _player=[[AVPlayer alloc]initWithPlayerItem:_item];
 [_item addObserver:self forKeyPath:@"status" options:NSKeyValueObservingOptionNew context:nil];// 监听status属性
 [_item addObserver:self forKeyPath:@"loadedTimeRanges" options:NSKeyValueObservingOptionNew context:nil];// 监听loadedTimeRanges属性
 [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(moviePlayDidEnd:) name:AVPlayerItemDidPlayToEndTimeNotification object:_item];
 AVPlayerLayer *layer=[AVPlayerLayer playerLayerWithPlayer:_player];
 layer.videoGravity=AVLayerVideoGravityResizeAspect;
 layer.frame=CGRectMake(0, 0, kHeight, kWidth);
 layer.backgroundColor=[UIColor clearColor].CGColor;
 [self.view.layer addSublayer:layer];
 // 标题
 [self createTitleView];
 // 界面
 [self createUI];
 //旋转视图
 //self.view.transform=CGAffineTransformMakeRotation(3*M_PI_2);
 //layer.transform=CATransform3DMakeRotation(M_PI/2, 0, 0, 1);
 self.view.layer.transform=CATransform3DMakeRotation(3*M_PI_2, 0, 0, 1);
 [self addGestures];
 

}
 /**
 * 添加手势
 */
 -(void)addGestures
 {
 //添加一个手势 隐藏与显示进度条
 UITapGestureRecognizer *tap=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(shiftStatus)];
 [self.view addGestureRecognizer:tap];
//增加音量的手势
UISwipeGestureRecognizer \*increaseGesture=[[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(increaseVolume:)];
increaseGesture.direction=UISwipeGestureRecognizerDirectionUp;
[self.view addGestureRecognizer:increaseGesture];

//减小音量的手势
UISwipeGestureRecognizer \*decreaseGesture=[[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(decreaseVolume:)];
decreaseGesture.direction=UISwipeGestureRecognizerDirectionDown;
[self.view addGestureRecognizer:decreaseGesture];

//快进
UISwipeGestureRecognizer \*stepForward=[[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(stepForward10Seconds)];
stepForward.direction=UISwipeGestureRecognizerDirectionRight;
//快退
UISwipeGestureRecognizer \*stepBackward=[[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(stepBackward10Senconds)];
stepBackward.direction=UISwipeGestureRecognizerDirectionLeft;
[self.view addGestureRecognizer:stepForward];
[self.view addGestureRecognizer:stepBackward];

}
 /**
 * 评估网络状态
 */
 -(void)estimateNetworkStatus
 {
 FGGNetWorkStatus status=[FGGReachability networkStatus];
 if(status==FGGNetWorkStatusNotReachable)
 {
 UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"提示"
 message:@"当前网络不可用"
 delegate:nil
 cancelButtonTitle:@"知道了"
 otherButtonTitles:nil, nil];
 [alert show];
 }
 else if(status!=FGGNetWorkStatusWifi)
 {
 UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"提示"
 message:@"非Wifi环境播放视屏会耗费流量！"
 delegate:nil
 cancelButtonTitle:@"知道了"
 otherButtonTitles:nil, nil];
 [alert show];
 }
 }
 /**
 * 向上滑动增加音量
 *
 * @param sender 滑动手势
 */
 -(void)increaseVolume:(UISwipeGestureRecognizer *)sender
 {
 if(sender.direction==UISwipeGestureRecognizerDirectionUp)
 {
 if(_player.volume>=1.0)
 return;
 _player.volume+=0.1;
 // NSLog(@"+++++音量:%f++++++",10*_player.volume);
    __weak PlayViewController \*weakSelf=self;
    _volumeLabel.text=[NSString stringWithFormat:@"音量:%d",(int)ceilf(_player.volume\*10)];
    [UIView animateWithDuration:0.2 animations:^{
        weakSelf.volumeLabel.alpha=1.0;
    } completion:^(BOOL finished) {
        [UIView animateWithDuration:0.2 animations:^{
            weakSelf.volumeLabel.alpha=0.0;
        }];
    }];
}

}
 /**
 * 向下滑动减小音量
 *
 * @param sender 滑动手势对象
 */
 -(void)decreaseVolume:(UISwipeGestureRecognizer *)sender
 {
 if(sender.direction==UISwipeGestureRecognizerDirectionDown)
 {
 if(_player.volume<=0.0)
 return;
 _player.volume-=0.1;
 // NSLog(@"------音量:%f------",10*_player.volume);
    __weak PlayViewController \*weakSelf=self;
    _volumeLabel.text=[NSString stringWithFormat:@"音量:%d",(int)ceilf(_player.volume\*10)];
    [UIView animateWithDuration:0.3 animations:^{
        weakSelf.volumeLabel.alpha=1.0;
    } completion:^(BOOL finished) {
        [UIView animateWithDuration:0.3 animations:^{
            weakSelf.volumeLabel.alpha=0.0;
        }];
    }];
}

}
pragma mark -
pragma mark - 快退快进
//@qustion:seekToTime和seekToTime:toleranceBefore:toleranceAfter的区别是什么？
 //快进10秒
 -(void)stepForward10Seconds
 {
 if(_isPlaying)
 {
 [_item seekToTime:CMTimeMakeWithSeconds(_item.currentTime.value/_item.currentTime.timescale+10, _item.currentTime.timescale) toleranceBefore:CMTimeMake(1, _item.currentTime.timescale) toleranceAfter:CMTimeMake(1, _item.currentTime.timescale)];
 __weak typeof(self) weakSelf=self;
 [UIView animateWithDuration:0.3 animations:^{
 weakSelf.forward.alpha=1.0;
 }completion:^(BOOL finished) {
 [UIView animateWithDuration:0.3 animations:^{
 weakSelf.forward.alpha=0.0;
 }];
 }];
 }
 }
 //快退10秒
 -(void)stepBackward10Senconds
 {
 if(_isPlaying)
 {
 [_item seekToTime:CMTimeMakeWithSeconds(_item.currentTime.value/_item.currentTime.timescale-10, _item.currentTime.timescale)];
 __weak typeof(self) weakSelf=self;
 [UIView animateWithDuration:0.3 animations:^{
 weakSelf.backward.alpha=1.0;
 }completion:^(BOOL finished) {
 [UIView animateWithDuration:0.3 animations:^{
 weakSelf.backward.alpha=0.0;
 }];
 }];
 }
 }
 //界面
 -(void)createUI
 {
 _playBtn=[[UIButton alloc]initWithFrame:CGRectMake(50, 20, 60, 40)];
 [_playBtn setTitle:@"Play" forState:UIControlStateNormal];
 [_playBtn setTitle:@"Pause" forState:UIControlStateSelected];
 [_playBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
 _playBtn.titleLabel.font=[UIFont boldSystemFontOfSize:16];
 [_playBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];
 [_playBtn addTarget:self action:@selector(playAction:) forControlEvents:UIControlEventTouchUpInside];
 _playBtn.backgroundColor=[UIColor clearColor];
 [self.view addSubview:_playBtn];
 _progress=[[UIProgressView alloc]initWithFrame:CGRectMake(110, 41, kHeight-230, 2)];
 // 设置轨道颜色，将要走到的路径的颜色
 _progress.trackTintColor=[UIColor whiteColor];
 // 设置进度颜色,已经走过的路径
 _progress.progressTintColor=[UIColor blueColor];
_slider=[[UISlider alloc]initWithFrame:CGRectMake(110, 26,kHeight-230, 31)];
[_slider setThumbImage:[UIImage imageNamed:@"thumb"] forState:UIControlStateNormal];
_slider.minimumTrackTintColor=[UIColor blueColor];//设置左边颜色
_slider.maximumTrackTintColor=[UIColor clearColor];//设置右边颜色
_slider.continuous=NO;
[_slider addTarget:self action:@selector(sliderDidSlided:) forControlEvents:UIControlEventValueChanged];


[self.view addSubview:_progress];
[self.view addSubview:_slider];

_timeLabel=[Tools createLabelWithFrame:CGRectMake(kHeight-130, 30, 110, 20) text:nil textColor:[UIColor whiteColor] textAligment:NSTextAlignmentRight andBgColor:[UIColor clearColor] font:[UIFont systemFontOfSize:14]];
_timeLabel.text=@"--:--/--:--";
[self.view addSubview:_timeLabel];

//    音量label
_volumeLabel=[[UILabel alloc]initWithFrame:CGRectMake(kHeight-100, kWidth/2-20, 80, 40)];
_volumeLabel.text=[NSString stringWithFormat:@"音量:%d",(int)ceil(_player.volume)\*10];
_volumeLabel.alpha=0.0;
_volumeLabel.backgroundColor=[UIColor clearColor];
_volumeLabel.font=[UIFont boldSystemFontOfSize:22];
_volumeLabel.textColor=[UIColor whiteColor];
[self.view addSubview:_volumeLabel];

//快进
_forward=[[UIImageView alloc]initWithFrame:CGRectMake(kHeight-164, kWidth/2-32, 64, 64)];
_forward.image=[UIImage imageNamed:@"stepforward"];
[self.view addSubview:_forward];
_forward.alpha=0.0;

//快退
_backward=[[UIImageView alloc]initWithFrame:CGRectMake(100, kWidth/2-32, 64, 64)];
_backward.image=[UIImage imageNamed:@"stepbackward"];
[self.view addSubview:_backward];
_backward.alpha=0.0;

}
//标题视图
 -(void)createTitleView
 {
 UILabel *titleLabel=[Tools createLabelWithFrame:CGRectMake(50, 10, kHeight-100, 20) text:self.videoTitle textColor:[UIColor whiteColor] textAligment:NSTextAlignmentCenter andBgColor:[UIColor clearColor] font:[UIFont boldSystemFontOfSize:12]];
 [self.view addSubview:titleLabel];
 titleLabel.tag=111;
//    返回按钮
UIButton \*backBtn=[[UIButton alloc]initWithFrame:CGRectMake(10, 20, 40, 40)];
[backBtn setBackgroundImage:[UIImage imageNamed:@"back"] forState:UIControlStateNormal];
[backBtn addTarget:self action:@selector(backAction) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:backBtn];

}
 //返回
 -(void)backAction
 {
 [self.navigationController popViewControllerAnimated:YES];
 [self dismissViewControllerAnimated:YES completion:nil];
 }
/**
 * 滑动进度条时执行该方法
 *
 * @param sender slider对象
 */
 -(void)sliderDidSlided:(UISlider *)sender
 {
 if(_player.status==AVPlayerStatusReadyToPlay)
 {
 CGFloat value=sender.value;
 [_item seekToTime:CMTimeMake(value, 1)];
 }
 }
 //隐藏上方的条条
 -(void)hideStatusLabels
 {
 __weak PlayViewController *weakSelf=self;
if(!_isPlaying)
    return;
UILabel \*label=(UILabel \*)[self.view viewWithTag:111];
[UIView animateWithDuration:0.5 animations:^{

// 自动播放视频
 [weakSelf.player play];
 weakSelf.isPlaying=YES;
    label.alpha=0;
    weakSelf.timeLabel.alpha=0;
    weakSelf.slider.alpha=0;
    weakSelf.progress.alpha=0;
    weakSelf.playBtn.alpha=0;
} completion:^(BOOL finished) {
    
}];

}
 //显示上方的条条
 -(void)showStatusLabels
 {
 __weak PlayViewController *weakSelf=self;
UILabel \*label=(UILabel \*)[self.view viewWithTag:111];

[UIView animateWithDuration:0.5 animations:^{
    
    weakSelf.timeLabel.alpha=1;
    weakSelf.slider.alpha=1;
    weakSelf.progress.alpha=1;
    weakSelf.playBtn.alpha=1;
    label.alpha=1;
} completion:^(BOOL finished) {

}];

}
 //手势点击屏幕触发的方法
 -(void)shiftStatus
 {
 if(_playBtn.alpha==0)
 {
 // 显示上方条条
 [self performSelector:@selector(showStatusLabels) withObject:nil];
 // 6秒后 自动隐藏上方条条
 [self performSelector:@selector(hideStatusLabels) withObject:nil afterDelay:6];
 }
 else
 // 隐藏条条
 [self performSelector:@selector(hideStatusLabels) withObject:nil];
}
 /**
 * 点击播放按钮时执行的方法
 *
 * @param sender 播放按钮
 */
 -(void)playAction:(UIButton *)sender
 {
 sender.selected=!sender.isSelected;
 if(_isPlaying)
 {
 [_player pause];
 }
 else
 {
 [_player play];
 }
 _isPlaying=!_isPlaying;
 }
 /**
 * 收到播放完毕的通知时执行该方法
 *
 * @param notification 通知
 */

(void)moviePlayDidEnd:(NSNotification *)notification
 {
 NSLog(@"Play end");
 [_player seekToTime:kCMTimeZero completionHandler:^(BOOL finished)
 {
 [self updateVideoSlider:0.0];
 [_playBtn setTitle:@"Play" forState:UIControlStateNormal];
 }];
 }
 (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
 {
 AVPlayerItem *playerItem = (AVPlayerItem *)object;
 if ([keyPath isEqualToString:@"status"])
 {
   if ([playerItem status] == AVPlayerStatusReadyToPlay)
  {
    
      NSLog(@"AVPlayerStatusReadyToPlay");
 

// 开始播放视频
 [_player play];
 // 播放状态置为YES
 _isPlaying=YES;
 _playBtn.selected=YES;
 // 隐藏上方的条条
 [self hideStatusLabels];
 // 隐藏加载指示器
 [_indicator stopAnimating];
 [_indicator removeFromSuperview];
        CMTime duration = _item.duration;// 获取视频总长度

        CGFloat totalSecond = playerItem.duration.value / playerItem.duration.timescale;// 转换成秒
      
        _totalTime = [self convertTime:totalSecond];// 转换成播放时间
      
        [self customVideoSlider:duration];
      
        NSLog(@"movie total duration:%f",CMTimeGetSeconds(duration));
     
        [self monitoringPlayback:_item];// 监听播放状态
    
    }
    else if ([playerItem status] == AVPlayerStatusFailed)
    {
        //移除网络加载指示器
        [_indicator stopAnimating];
        [_indicator removeFromSuperview];
        //NSLog(@"AVPlayerStatusFailed");
        UIAlertView \*alert=[[UIAlertView alloc]initWithTitle:@"提示" message:@"加载失败" delegate:nil cancelButtonTitle:nil otherButtonTitles:nil, nil];
        [alert show];
        [alert dismissWithClickedButtonIndex:0 animated:YES];
    }

} else if ([keyPath isEqualToString:@"loadedTimeRanges"])
{
 
    NSTimeInterval timeInterval = [self availableDuration];// 计算缓冲进度

// NSLog(@"Time Interval:%f",timeInterval);
    CMTime duration = _item.duration;
 
    CGFloat totalDuration = CMTimeGetSeconds(duration);

// 设置进度处理器的进度值
 [_progress setProgress:timeInterval / totalDuration animated:YES];
}

}
 /**
 * 获取缓冲总进度
 *
 * @return 缓冲总进度
 */

 (NSTimeInterval)availableDuration
 {
 NSArray *loadedTimeRanges = [[_player currentItem] loadedTimeRanges];
 CMTimeRange timeRange = [loadedTimeRanges.firstObject CMTimeRangeValue];// 获取缓冲区域
 float startSeconds = CMTimeGetSeconds(timeRange.start);
 float durationSeconds = CMTimeGetSeconds(timeRange.duration);
 NSTimeInterval result = startSeconds + durationSeconds;// 计算缓冲总进度
 return result;
 }
 /**
 * 将视频播放的当前时间和总时间，格式化显示在界面上
 *
 * @param second 播放器的当前时间
 *
 * @return 格式化后的显示时间
 */
 
 (NSString *)convertTime:(CGFloat)second
 {
 NSDate *d = [NSDate dateWithTimeIntervalSince1970:second];
 NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
 if (second/3600 >= 1)
 {
   [formatter setDateFormat:@"HH:mm:ss"];
 }
 else
 {
   [formatter setDateFormat:@"mm:ss"];
 }
 NSString *showtimeNew = [formatter stringFromDate:d];
 return showtimeNew;
 }
 
 (void)monitoringPlayback:(AVPlayerItem *)playerItem
 {
 __weak PlayViewController *weakSelf=self;
 self.playbackTimeObserver = [_player addPeriodicTimeObserverForInterval:CMTimeMake(1, 1) queue:NULL usingBlock:^(CMTime time)
 {
 CGFloat currentSecond = playerItem.currentTime.value/playerItem.currentTime.timescale;// 计算当前在第几秒
 [weakSelf updateVideoSlider:currentSecond];
 NSString *timeString = [weakSelf convertTime:currentSecond];
 weakSelf.timeLabel.text = [NSString stringWithFormat:@"%@/%@",timeString,weakSelf.totalTime];
 }];
 }
 
 (void)customVideoSlider:(CMTime)duration
 {
 _slider.maximumValue = CMTimeGetSeconds(duration);
 UIGraphicsBeginImageContextWithOptions((CGSize){ 1, 1 }, NO, 0.0f);
 UIImage *transparentImage = UIGraphicsGetImageFromCurrentImageContext();
 UIGraphicsEndImageContext();
 [_slider setMinimumTrackImage:transparentImage forState:UIControlStateNormal];
 [_slider setMaximumTrackImage:transparentImage forState:UIControlStateNormal];
 }
 /**
 * 更新滑块的值
 *
 * @param currentSecond 当前的播放时间
 */
 
(void)updateVideoSlider:(CGFloat)currentSecond
 {
 [_slider setValue:currentSecond animated:YES];
 }
 /**
 * 视图即将消失时移除观察者对象，注销通知，如果播放器在播放，让其暂停，让播放器指向nil
 *
 * @param animated 动画效果
 */
 (void)viewWillDisappear:(BOOL)animated
 {
 [super viewWillDisappear:animated];
 [_item removeObserver:self forKeyPath:@"status" context:nil];
 [_item removeObserver:self forKeyPath:@"loadedTimeRanges" context:nil];
 [[NSNotificationCenter defaultCenter] removeObserver:self name:AVPlayerItemDidPlayToEndTimeNotification object:_item];
 [_player removeTimeObserver:self.playbackTimeObserver];
 if(_isPlaying)
 {
 [_player pause];
 _player=nil;
 }
 }
 

@end

附上GitHub代码地址：AVFoundationPlayer

AVPlayer做的一个小视频播放器，包含快进快退音量调节等基本功能_第1张图片

AVPlayer做的一个小视频播放器，包含快进快退音量调节等基本功能

import "PlayViewController.h"

import

import

import "Tools.h"

import "FGGReachability.h"

define kWidth ([UIScreen mainScreen].bounds.size.width)

define kHeight ([UIScreen mainScreen].bounds.size.height)

pragma mark -

pragma mark - 快退快进

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