iOS系列(LJ)iOS iOS

AVPlayer做的一个小视频播放器，包含快进快退音量调节等基本

2015-12-08  本文已影响2432人  CGPointZero

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。
<pre>#import "AppDelegate.h"

import "PlayViewController.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

@end</pre>
<pre>#import "PlayViewController.h"

import <AVFoundation/AVFoundation.h>

import <MediaPlayer/MediaPlayer.h>

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

}
/**
* 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
*/

// 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
*/

@end</pre>
<pre>附上GitHub代码地址：AVFoundationPlayer</pre>

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