AVPlayer可以自定义视屏播放器的样式
其中主要是理解CMTime的用法，CMTime是一个结构体，它有2个属性很重要，一个是value：表示总共有多少帧，一个是timeScale这个表示每秒钟多少帧
value/timeScale得到秒(我们想要的时间)
ps:支持手势双击暂停和开始播放，支持左右滑动
快进快退
note : 当横屏的时候屏幕的宽高要调换
//
// CustomAVPlayer.m
// PlayOnNet
//
// Created by ios on 16/9/3.
// Copyright © 2016年 fenglei. All rights reserved.
//
#import "CustomAVPlayer.h"
#import
#import
#define KScreenHeight [[UIScreen mainScreen]bounds].size.height
#define KScreenWidth [[UIScreen mainScreen]bounds].size.width
@interface CustomAVPlayer ()
@property (nonatomic, strong)AVPlayer *player;//播放对象
@property (nonatomic, strong)AVPlayerItem *playerItem;//播放资源对象
@property (nonatomic, strong)UIView *backView;//背景视图
@property (nonatomic, strong)UIButton *backButton;//返回按钮
@property (nonatomic, strong)UILabel *currentTimeLabel;//当前播放时间label;
@property (nonatomic, strong)UILabel *totalTimeLabel;//总时间
@property (nonatomic, strong)UISlider *currentSlider;//当前播放进度
@property (nonatomic, strong)UIProgressView *availableProgress;//已缓存的进度
@property (nonatomic, strong)UIButton *playButton;//播放和暂停
@property (nonatomic, strong)NSTimer *timer;//定时器
@end
@implementation CustomAVPlayer
- (void)viewDidLoad {
[super viewDidLoad];
[self createSubviews];
_timer = [NSTimer scheduledTimerWithTimeInterval:1.f target:self selector:@selector(moveSlider:) userInfo:nil repeats:YES];
}
#pragma mark - 创建子视图
- (void)createSubviews{
//初始化媒体播放对象
self.playerItem = [[AVPlayerItem alloc]initWithURL:[NSURL URLWithString:@"http://vf1.mtime.cn/Video/2012/04/23/mp4/120423212602431929.mp4"]];
self.player = [AVPlayer playerWithPlayerItem:self.playerItem];
//创建AVPlayerLayer
AVPlayerLayer *AVLayer = [AVPlayerLayer playerLayerWithPlayer:self.player];
AVLayer.frame = CGRectMake(0, 0, self.view.layer.bounds.size.height, self.view.layer.bounds.size.width);
AVLayer.videoGravity = AVLayerVideoGravityResize;
[self.view.layer addSublayer:AVLayer];
[_player play];
//创建背景视图
[self createbackView];
//播放完成时候的通知
[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(finishPlay:) name:AVPlayerItemDidPlayToEndTimeNotification object:_player.currentItem];
//kVO监听已经缓存的进度(是否达到播放要求)
[self.playerItem addObserver:self forKeyPath:@"loadedTimeRanges" options:NSKeyValueObservingOptionNew context:nil];
}
//创建背景视图
- (void)createbackView {
self.backView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, KScreenHeight, KScreenWidth)];
self.backView.backgroundColor = [UIColor clearColor];
[self.view addSubview:self.backView];
//返回按钮
self.backButton = [UIButton buttonWithType:UIButtonTypeCustom];
self.backButton.frame = CGRectMake(10, 20, 40, 40);
[_backButton setImage:[UIImage imageNamed:@"gobackBtn"] forState:UIControlStateNormal];
[_backButton addTarget:self action:@selector(backAction) forControlEvents:UIControlEventTouchUpInside];
[self.backView addSubview:_backButton];
//创建子视图
#pragma mark -创建子控件
[self createProgressView];
[self createSlider];
[self createLabel];
[self createPlayButton];
//添加手势
[self createGesture];
//当用户不在操作屏幕的时候自动隐藏背景视图
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(7 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[UIView animateWithDuration:0.5 animations:^{
_backView.alpha = 0;
}];
});
}
//当前时间进度
- (void)createSlider {
self.currentSlider = [[UISlider alloc]initWithFrame:CGRectMake(100, KScreenWidth - 60, KScreenHeight - 300, 31)];
_currentSlider.maximumValue = 1;
_currentSlider.minimumValue = 0;
[_currentSlider setThumbImage:[UIImage imageNamed:@"iconfont-yuan"] forState:UIControlStateNormal];
[_currentSlider addTarget:self action:@selector(sliderAction:) forControlEvents:UIControlEventValueChanged];
[_currentSlider setMaximumTrackTintColor:[UIColor clearColor]];
[_currentSlider setMinimumTrackTintColor:[UIColor orangeColor]];
[_backView addSubview:_currentSlider];
}
//时间的label
- (void)createLabel {
//当前的时间
self.currentTimeLabel = [[UILabel alloc]initWithFrame:CGRectMake(CGRectGetMaxX(_currentSlider.frame) + 10, CGRectGetMinY(_currentSlider.frame)+5, 60, 20)];
_currentTimeLabel.text = @"00:00/";
_currentTimeLabel.backgroundColor = [UIColor redColor];
_currentTimeLabel.textColor = [UIColor whiteColor];
_currentTimeLabel.font = [UIFont boldSystemFontOfSize:17];
[self.backView addSubview:_currentTimeLabel];
//总时间
self.totalTimeLabel = [[UILabel alloc]initWithFrame:CGRectMake(CGRectGetMaxX(_currentTimeLabel.frame)+10, _currentTimeLabel.frame.origin.y, 60, 20)];
_totalTimeLabel.text = @"00:00";
_totalTimeLabel.textColor = [UIColor whiteColor];
[_backView addSubview:_totalTimeLabel];
}
//创建一个已缓存的进度条
- (void)createProgressView {
self.availableProgress = [[UIProgressView alloc]initWithProgressViewStyle:UIProgressViewStyleDefault];
_availableProgress.frame = CGRectMake(102, KScreenWidth - 60 +15 , KScreenHeight - 300+2, 2);
//进度颜色
_availableProgress.progressTintColor = [UIColor colorWithRed:67/255.0 green:67/255.0 blue:67/255.0 alpha:1];
//进度条当前的颜色
_availableProgress.trackTintColor = [UIColor colorWithRed:154/255.0 green:154/255.0 blue:154/255.0 alpha:1];
[_backView addSubview:_availableProgress];
}
//播放和暂停的按钮
- (void)createPlayButton {
self.playButton = [UIButton buttonWithType:UIButtonTypeCustom];
_playButton.frame = CGRectMake(15, CGRectGetMinY(_currentSlider.frame), 30, 30);
[_playButton setImage:[UIImage imageNamed:@"pauseBtn@2x"] forState:UIControlStateNormal];
[_backView addSubview:_playButton];
[_playButton addTarget:self action:@selector(playAction:) forControlEvents:UIControlEventTouchUpInside];
}
#pragma mark - 定时器
//滑动滑块和计算当前时间
- (void)moveSlider:(NSTimer *)timer{
//帧数不为0(能播放的状态)
if (_playerItem.duration.timescale != 0) {
_currentSlider.value = CMTimeGetSeconds([_playerItem currentTime]) / (_playerItem.duration.value / _playerItem.duration.timescale);//当前进度
//当前时长进度progress
NSInteger proMin = (NSInteger)CMTimeGetSeconds([_player currentTime]) / 60;//当前秒
NSInteger proSec = (NSInteger)CMTimeGetSeconds([_player currentTime]) % 60;//当前分钟
NSInteger durMin = (NSInteger)_playerItem.duration.value / _playerItem.duration.timescale / 60;//总秒
NSInteger durSec = (NSInteger)_playerItem.duration.value / _playerItem.duration.timescale % 60;//总分钟
_totalTimeLabel.text = [NSString stringWithFormat:@"%02ld:%02ld",durMin, durSec];
_currentTimeLabel.text = [NSString stringWithFormat:@"%02ld:%02ld/",proMin, proSec];
}
}
#pragma mark - 响应事件
//返回按钮
- (void)backAction {
[self.player pause];
[self dismissViewControllerAnimated:YES completion:nil];
}
//播放按钮的响应事件
- (void)playAction :(UIButton *)button {
if (_player.rate == 0) {
[_player play];
[_playButton setImage:[UIImage imageNamed:@"pauseBtn@2x"] forState:UIControlStateNormal];
}else if(_player.rate == 1) {
[_player pause];
[_playButton setImage:[UIImage imageNamed:@"playBtn@2x"] forState:UIControlStateNormal];
}
button.selected = !button.selected;
}
//滑动条的响应事件
- (void)sliderAction:(UISlider *)slider {
//视频的总时间
CGFloat total = (CGFloat)_playerItem.duration.value / _playerItem.duration.timescale;
//当前的进度对应的播放时间
NSInteger time = floorf(total * slider.value);//求不大于传入值的最大整数
CMTime currentTime = CMTimeMake(time, 1);
//暂停
[_player pause];
//当前视屏滑到指定位置播放
[_player seekToTime:currentTime completionHandler:^(BOOL finished) {
[_player play];
}];
}
//手势(双击)响应事件
-(void)tapAction {
//暂停的状态
if (_player.rate == 0) {
[_player play];
[_playButton setImage:[UIImage imageNamed:@"pauseBtn@2x"] forState:UIControlStateNormal];
}else if (_player.rate == 1){//播放的状态
[_player pause];
[_playButton setImage:[UIImage imageNamed:@"playBtn@2x"] forState:UIControlStateNormal];
}
}
#pragma mark - 通知
//结束播放时候的通知
- (void)finishPlay:(id)sender {
}
#pragma mark - KVO监听
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if ([keyPath isEqualToString:@"loadedTimeRanges"]) {
//总缓存
NSTimeInterval totalCashe = [self availabelDuration];
//视屏总时长
CMTime duration = _playerItem.duration;
CGFloat totalDuration = CMTimeGetSeconds(duration);
//求缓存进度条
_availableProgress.progress = totalCashe / totalDuration;
}
}
//获取缓存区域
- (NSTimeInterval)availabelDuration {
NSArray *loadedTimeRanges = [[_player currentItem] loadedTimeRanges];
//获取缓存区域
CMTimeRange range = [loadedTimeRanges.firstObject CMTimeRangeValue];
float startSeconds = CMTimeGetSeconds(range.start);
float durationSeconds = CMTimeGetSeconds(range.duration);
NSTimeInterval total = startSeconds + durationSeconds;//计算缓存总进度
return total;
}
#pragma mark - 手势
- (void)createGesture {
//双击
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapAction)];
tap.numberOfTapsRequired = 2;
[_backView addGestureRecognizer:tap];
}
#pragma mark - 屏幕旋转
- (BOOL)shouldAutorotate {
return YES;
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskLandscape;//只支持横屏
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
return UIInterfaceOrientationLandscapeRight;//默认横屏向右
}
- (BOOL)prefersStatusBarHidden {
return NO;//不隐藏状态栏
}
#pragma mark - 点击屏幕的响应事件
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
if (_backView.alpha != 1) {
[UIView animateWithDuration:0.5 animations:^{
_backView.alpha = 1;
}];
}
}
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
//获取滑动后的x轴偏移量
//1>获取最先点击的点
CGPoint prePoint = [[touches anyObject] previousLocationInView:_backView];
//2>最后手指离开屏幕的那个点
CGPoint lastPoint = [[touches anyObject]locationInView:_backView];
//x轴偏移量
CGFloat offsetX = lastPoint.x - prePoint.x;
if (offsetX >= 20 || offsetX <= -20) {
//滑动的百分比
CGFloat percent = offsetX / KScreenHeight;
//视频的总时间
CGFloat totalTime = (_playerItem.duration.value / _playerItem.duration.timescale);
CGFloat currentTime = CMTimeGetSeconds([_playerItem currentTime]);
currentTime = totalTime * percent + currentTime;
if (currentTime >= totalTime) {
[_player pause];
return;
}
CMTime time = CMTimeMake(currentTime, 1);
[_player pause];
[_player seekToTime:time completionHandler:^(BOOL finished) {
[_player play];
}];
}
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
CGFloat currentTime = CMTimeGetSeconds([_playerItem currentTime]);
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)((currentTime+7) * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[UIView animateWithDuration:0.5 animations:^{
_backView.alpha = 0;
}];
});
// [_backView performSelector:@selector(setAlpha:) withObject:[NSNumber numberWithInt:0] afterDelay:currentTime + 7];
}
#pragma mark - 销毁通知和KVO
- (void)dealloc {
[_timer invalidate];
_timer = nil;
[[NSNotificationCenter defaultCenter]removeObserver:self];
[_playerItem removeObserver:self forKeyPath:@"loadedTimeRanges"];
}
@end
//
// CustomAVPlayer.m
// PlayOnNet
//
// Created by ios on 16/9/3.
// Copyright © 2016年 fenglei. All rights reserved.
//
#import "CustomAVPlayer.h"
#import
#import
#define KScreenHeight [[UIScreen mainScreen]bounds].size.height
#define KScreenWidth [[UIScreen mainScreen]bounds].size.width
@interface CustomAVPlayer ()
@property (nonatomic, strong)AVPlayer *player;//播放对象
@property (nonatomic, strong)AVPlayerItem *playerItem;//播放资源对象
@property (nonatomic, strong)UIView *backView;//背景视图
@property (nonatomic, strong)UIButton *backButton;//返回按钮
@property (nonatomic, strong)UILabel *currentTimeLabel;//当前播放时间label;
@property (nonatomic, strong)UILabel *totalTimeLabel;//总时间
@property (nonatomic, strong)UISlider *currentSlider;//当前播放进度
@property (nonatomic, strong)UIProgressView *availableProgress;//已缓存的进度
@property (nonatomic, strong)UIButton *playButton;//播放和暂停
@property (nonatomic, strong)NSTimer *timer;//定时器
@end
@implementation CustomAVPlayer
- (void)viewDidLoad {
[super viewDidLoad];
[self createSubviews];
_timer = [NSTimer scheduledTimerWithTimeInterval:1.f target:self selector:@selector(moveSlider:) userInfo:nil repeats:YES];
}
#pragma mark - 创建子视图
- (void)createSubviews{
//初始化媒体播放对象
self.playerItem = [[AVPlayerItem alloc]initWithURL:[NSURL URLWithString:@"http://vf1.mtime.cn/Video/2012/04/23/mp4/120423212602431929.mp4"]];
self.player = [AVPlayer playerWithPlayerItem:self.playerItem];
//创建AVPlayerLayer
AVPlayerLayer *AVLayer = [AVPlayerLayer playerLayerWithPlayer:self.player];
AVLayer.frame = CGRectMake(0, 0, self.view.layer.bounds.size.height, self.view.layer.bounds.size.width);
AVLayer.videoGravity = AVLayerVideoGravityResize;
[self.view.layer addSublayer:AVLayer];
[_player play];
//创建背景视图
[self createbackView];
//播放完成时候的通知
[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(finishPlay:) name:AVPlayerItemDidPlayToEndTimeNotification object:_player.currentItem];
//kVO监听已经缓存的进度(是否达到播放要求)
[self.playerItem addObserver:self forKeyPath:@"loadedTimeRanges" options:NSKeyValueObservingOptionNew context:nil];
}
//创建背景视图
- (void)createbackView {
self.backView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, KScreenHeight, KScreenWidth)];
self.backView.backgroundColor = [UIColor clearColor];
[self.view addSubview:self.backView];
//返回按钮
self.backButton = [UIButton buttonWithType:UIButtonTypeCustom];
self.backButton.frame = CGRectMake(10, 20, 40, 40);
[_backButton setImage:[UIImage imageNamed:@"gobackBtn"] forState:UIControlStateNormal];
[_backButton addTarget:self action:@selector(backAction) forControlEvents:UIControlEventTouchUpInside];
[self.backView addSubview:_backButton];
//创建子视图
#pragma mark -创建子控件
[self createProgressView];
[self createSlider];
[self createLabel];
[self createPlayButton];
//添加手势
[self createGesture];
//当用户不在操作屏幕的时候自动隐藏背景视图
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(7 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[UIView animateWithDuration:0.5 animations:^{
_backView.alpha = 0;
}];
});
}
//当前时间进度
- (void)createSlider {
self.currentSlider = [[UISlider alloc]initWithFrame:CGRectMake(100, KScreenWidth - 60, KScreenHeight - 300, 31)];
_currentSlider.maximumValue = 1;
_currentSlider.minimumValue = 0;
[_currentSlider setThumbImage:[UIImage imageNamed:@"iconfont-yuan"] forState:UIControlStateNormal];
[_currentSlider addTarget:self action:@selector(sliderAction:) forControlEvents:UIControlEventValueChanged];
[_currentSlider setMaximumTrackTintColor:[UIColor clearColor]];
[_currentSlider setMinimumTrackTintColor:[UIColor orangeColor]];
[_backView addSubview:_currentSlider];
}
//时间的label
- (void)createLabel {
//当前的时间
self.currentTimeLabel = [[UILabel alloc]initWithFrame:CGRectMake(CGRectGetMaxX(_currentSlider.frame) + 10, CGRectGetMinY(_currentSlider.frame)+5, 60, 20)];
_currentTimeLabel.text = @"00:00/";
_currentTimeLabel.backgroundColor = [UIColor redColor];
_currentTimeLabel.textColor = [UIColor whiteColor];
_currentTimeLabel.font = [UIFont boldSystemFontOfSize:17];
[self.backView addSubview:_currentTimeLabel];
//总时间
self.totalTimeLabel = [[UILabel alloc]initWithFrame:CGRectMake(CGRectGetMaxX(_currentTimeLabel.frame)+10, _currentTimeLabel.frame.origin.y, 60, 20)];
_totalTimeLabel.text = @"00:00";
_totalTimeLabel.textColor = [UIColor whiteColor];
[_backView addSubview:_totalTimeLabel];
}
//创建一个已缓存的进度条
- (void)createProgressView {
self.availableProgress = [[UIProgressView alloc]initWithProgressViewStyle:UIProgressViewStyleDefault];
_availableProgress.frame = CGRectMake(102, KScreenWidth - 60 +15 , KScreenHeight - 300+2, 2);
//进度颜色
_availableProgress.progressTintColor = [UIColor colorWithRed:67/255.0 green:67/255.0 blue:67/255.0 alpha:1];
//进度条当前的颜色
_availableProgress.trackTintColor = [UIColor colorWithRed:154/255.0 green:154/255.0 blue:154/255.0 alpha:1];
[_backView addSubview:_availableProgress];
}
//播放和暂停的按钮
- (void)createPlayButton {
self.playButton = [UIButton buttonWithType:UIButtonTypeCustom];
_playButton.frame = CGRectMake(15, CGRectGetMinY(_currentSlider.frame), 30, 30);
[_playButton setImage:[UIImage imageNamed:@"pauseBtn@2x"] forState:UIControlStateNormal];
[_backView addSubview:_playButton];
[_playButton addTarget:self action:@selector(playAction:) forControlEvents:UIControlEventTouchUpInside];
}
#pragma mark - 定时器
//滑动滑块和计算当前时间
- (void)moveSlider:(NSTimer *)timer{
//帧数不为0(能播放的状态)
if (_playerItem.duration.timescale != 0) {
_currentSlider.value = CMTimeGetSeconds([_playerItem currentTime]) / (_playerItem.duration.value / _playerItem.duration.timescale);//当前进度
//当前时长进度progress
NSInteger proMin = (NSInteger)CMTimeGetSeconds([_player currentTime]) / 60;//当前秒
NSInteger proSec = (NSInteger)CMTimeGetSeconds([_player currentTime]) % 60;//当前分钟
NSInteger durMin = (NSInteger)_playerItem.duration.value / _playerItem.duration.timescale / 60;//总秒
NSInteger durSec = (NSInteger)_playerItem.duration.value / _playerItem.duration.timescale % 60;//总分钟
_totalTimeLabel.text = [NSString stringWithFormat:@"%02ld:%02ld",durMin, durSec];
_currentTimeLabel.text = [NSString stringWithFormat:@"%02ld:%02ld/",proMin, proSec];
}
}
#pragma mark - 响应事件
//返回按钮
- (void)backAction {
[self.player pause];
[self dismissViewControllerAnimated:YES completion:nil];
}
//播放按钮的响应事件
- (void)playAction :(UIButton *)button {
if (_player.rate == 0) {
[_player play];
[_playButton setImage:[UIImage imageNamed:@"pauseBtn@2x"] forState:UIControlStateNormal];
}else if(_player.rate == 1) {
[_player pause];
[_playButton setImage:[UIImage imageNamed:@"playBtn@2x"] forState:UIControlStateNormal];
}
button.selected = !button.selected;
}
//滑动条的响应事件
- (void)sliderAction:(UISlider *)slider {
//视频的总时间
CGFloat total = (CGFloat)_playerItem.duration.value / _playerItem.duration.timescale;
//当前的进度对应的播放时间
NSInteger time = floorf(total * slider.value);//求不大于传入值的最大整数
CMTime currentTime = CMTimeMake(time, 1);
//暂停
[_player pause];
//当前视屏滑到指定位置播放
[_player seekToTime:currentTime completionHandler:^(BOOL finished) {
[_player play];
}];
}
//手势(双击)响应事件
-(void)tapAction {
//暂停的状态
if (_player.rate == 0) {
[_player play];
[_playButton setImage:[UIImage imageNamed:@"pauseBtn@2x"] forState:UIControlStateNormal];
}else if (_player.rate == 1){//播放的状态
[_player pause];
[_playButton setImage:[UIImage imageNamed:@"playBtn@2x"] forState:UIControlStateNormal];
}
}
#pragma mark - 通知
//结束播放时候的通知
- (void)finishPlay:(id)sender {
}
#pragma mark - KVO监听
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if ([keyPath isEqualToString:@"loadedTimeRanges"]) {
//总缓存
NSTimeInterval totalCashe = [self availabelDuration];
//视屏总时长
CMTime duration = _playerItem.duration;
CGFloat totalDuration = CMTimeGetSeconds(duration);
//求缓存进度条
_availableProgress.progress = totalCashe / totalDuration;
}
}
//获取缓存区域
- (NSTimeInterval)availabelDuration {
NSArray *loadedTimeRanges = [[_player currentItem] loadedTimeRanges];
//获取缓存区域
CMTimeRange range = [loadedTimeRanges.firstObject CMTimeRangeValue];
float startSeconds = CMTimeGetSeconds(range.start);
float durationSeconds = CMTimeGetSeconds(range.duration);
NSTimeInterval total = startSeconds + durationSeconds;//计算缓存总进度
return total;
}
#pragma mark - 手势
- (void)createGesture {
//双击
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapAction)];
tap.numberOfTapsRequired = 2;
[_backView addGestureRecognizer:tap];
}
#pragma mark - 屏幕旋转
- (BOOL)shouldAutorotate {
return YES;
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskLandscape;//只支持横屏
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
return UIInterfaceOrientationLandscapeRight;//默认横屏向右
}
- (BOOL)prefersStatusBarHidden {
return NO;//不隐藏状态栏
}
#pragma mark - 点击屏幕的响应事件
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
if (_backView.alpha != 1) {
[UIView animateWithDuration:0.5 animations:^{
_backView.alpha = 1;
}];
}
}
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
//获取滑动后的x轴偏移量
//1>获取最先点击的点
CGPoint prePoint = [[touches anyObject] previousLocationInView:_backView];
//2>最后手指离开屏幕的那个点
CGPoint lastPoint = [[touches anyObject]locationInView:_backView];
//x轴偏移量
CGFloat offsetX = lastPoint.x - prePoint.x;
if (offsetX >= 20 || offsetX <= -20) {
//滑动的百分比
CGFloat percent = offsetX / KScreenHeight;
//视频的总时间
CGFloat totalTime = (_playerItem.duration.value / _playerItem.duration.timescale);
CGFloat currentTime = CMTimeGetSeconds([_playerItem currentTime]);
currentTime = totalTime * percent + currentTime;
if (currentTime >= totalTime) {
[_player pause];
return;
}
CMTime time = CMTimeMake(currentTime, 1);
[_player pause];
[_player seekToTime:time completionHandler:^(BOOL finished) {
[_player play];
}];
}
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
CGFloat currentTime = CMTimeGetSeconds([_playerItem currentTime]);
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)((currentTime+7) * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[UIView animateWithDuration:0.5 animations:^{
_backView.alpha = 0;
}];
});
// [_backView performSelector:@selector(setAlpha:) withObject:[NSNumber numberWithInt:0] afterDelay:currentTime + 7];
}
#pragma mark - 销毁通知和KVO
- (void)dealloc {
[_timer invalidate];
_timer = nil;
[[NSNotificationCenter defaultCenter]removeObserver:self];
[_playerItem removeObserver:self forKeyPath:@"loadedTimeRanges"];
}
@end
其中很重要的一个是loadedTimeRanges属性，它是一个数组。
//获取缓存区域
CMTimeRange range = [loadedTimeRanges.firstObject CMTimeRangeValue];
//获取缓存的开始
float startSeconds = CMTimeGetSeconds(range.start);
float durationSeconds = CMTimeGetSeconds(range.duration);
NSTimeInterval total = startSeconds + durationSeconds;//计算缓存总进度
有些地方写的不好，各位看官随意，多多体谅