最近通過Avplayer自定義了一個(gè)視頻播放器.
項(xiàng)目框架#import <AVFoundation/AVFoundation.h>
1.首先播放網(wǎng)絡(luò)視頻.我需要獲取一個(gè)幀作為視頻簡(jiǎn)介圖片,還需要獲取視頻時(shí)長(zhǎng)來作為視頻的簡(jiǎn)介.
IMG_1047.PNG
這個(gè)時(shí)候我們需要
AVURLAsset幫助獲取.
由于
AVURLAsset是獲取數(shù)據(jù)是同步的,有時(shí)候會(huì)導(dǎo)致頁面卡頓,所以需要將上方法放到子線程.獲取完成在主線程更新視圖.
//子線程獲取數(shù)據(jù)
__weak typeof(self) weakSelf = self;
dispatch_async(dispatch_get_global_queue(0, 0), ^{
[weakSelf getThumbnailImageAndTotalTimeWithURL:weakSelf.videoURL];
});
- (void)getThumbnailImageAndTotalTimeWithURL:(NSString *)videoURL {
NSDictionary *opts = [NSDictionary dictionaryWithObject:[NSNumber numberWithBool:NO] forKey:AVURLAssetPreferPreciseDurationAndTimingKey];
AVURLAsset *urlAsset = [AVURLAsset URLAssetWithURL:[NSURL URLWithString:videoURL] options:opts];
//獲取image
AVAssetImageGenerator *assetImageGenerator =[[AVAssetImageGenerator alloc] initWithAsset:urlAsset];
assetImageGenerator.appliesPreferredTrackTransform = YES;
assetImageGenerator.maximumSize = CGSizeMake(self.videoImageView.frame.size.width, self.videoImageView.frame.size.height);
NSError *error = nil;
//獲取第一秒的幀
CGImageRef imgRef = [assetImageGenerator copyCGImageAtTime:CMTimeMake(1.0, 1.0) actualTime:NULL error:&error];
UIImage *image = [UIImage imageWithCGImage:imgRef];
//獲取時(shí)長(zhǎng)
self.totalTime = (CGFloat)(urlAsset.duration.value / urlAsset.duration.timescale);
//需要在主線程進(jìn)行UI更新
__weak typeof(self) weakSelf = self;
dispatch_async(dispatch_get_main_queue(), ^{
[weakSelf.videoImageView setImage:image];
weakSelf.totalTimeL.text = [self getVideoLengthFromTimeLength:weakSelf.totalTime];
});
}
2.播放器
IMG_1049.PNG
只是實(shí)現(xiàn)了一些基本的功能.大牛們就別噴我啦.
.h
#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>
@protocol VideoPlayerViewControllerDelegate <NSObject>
//點(diǎn)擊返回的回調(diào) time:觀看時(shí)間 isWatchFinish:是否觀看完成
- (void)moviePlayerVCCallbackWithTime:(CMTime)time isWatchFinish:(BOOL)isWatchFinish;
@end
@interface VideoPlayerViewController : UIViewController
@property (nonatomic, assign) id <VideoPlayerViewControllerDelegate> delegate;
@property (nonatomic, assign) CMTime watchCMTime;//觀看時(shí)間,外部傳入
@property (nonatomic, strong) NSURL *url;
@property (nonatomic, copy) NSString *titleStr;//title
@end
.m
#define TopViewHeight 50
#define BottomViewHeight 50
#define ViewWidth [UIScreen mainScreen].bounds.size.width
#define ViewHeight [UIScreen mainScreen].bounds.size.height
#import "VideoPlayerViewController.h"
@interface VideoPlayerViewController ()
//TopView
@property (nonatomic, strong) UIView *topView;
@property (nonatomic, strong) UIButton *backBtn;
@property (nonatomic, strong) UILabel *titleL;
//BottomView
@property (nonatomic, strong) UIView *bottomView;
@property (nonatomic, strong) UIButton *playBtn;
@property (nonatomic, strong) UILabel *timeL;
@property (nonatomic, strong) UISlider *videoSlider;
//Player
@property (nonatomic, strong) AVPlayer *player;
@property (nonatomic, strong) AVPlayerItem *playerItem;
//播放數(shù)據(jù)
@property (nonatomic, assign) CGFloat totalTime;
@property (nonatomic, assign) CMTime currentTime;
@property (nonatomic, assign) id timeObser;
@property (nonatomic, strong) NSTimer *avTimer;
//判斷狀態(tài)
@property (nonatomic, assign) BOOL isPlay;//是否播放
@property (nonatomic, assign) BOOL isShowToolView;//是否展示工具
@property (nonatomic, assign) BOOL isMoveSlider;//是否移動(dòng)滑竿
@property (nonatomic, assign) BOOL isWatchFinish;//是否觀看結(jié)束
@end
@implementation VideoPlayerViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self prefersStatusBarHidden];
self.isShowToolView = YES;
self.isWatchFinish = NO;
self.view.backgroundColor = [UIColor blackColor];
[self layoutAVPlayer];
[self layoutTopView];
[self layoutBottomView];
if (0.0 != self.watchCMTime.value && 0.0 != self.watchCMTime.timescale) {
//已為您跳轉(zhuǎn)上次播放
[self.player seekToTime:self.watchCMTime];
}
[self playerSetPlay:YES];
//觸發(fā)計(jì)時(shí)
[self.avTimer setFireDate:[NSDate dateWithTimeIntervalSinceNow:5]];
}
#pragma mark - AVPlayer
- (void)layoutAVPlayer {
CGRect playerFrame = CGRectMake(0, 0, self.view.layer.bounds.size.height, self.view.layer.bounds.size.width);
AVURLAsset *asset = [AVURLAsset assetWithURL: _url];
//獲取視頻總時(shí)長(zhǎng)
_totalTime = (CGFloat)(asset.duration.value / asset.duration.timescale);
_playerItem = [AVPlayerItem playerItemWithAsset: asset];
_player = [[AVPlayer alloc]initWithPlayerItem:_playerItem];
AVPlayerLayer *playerLayer = [AVPlayerLayer playerLayerWithPlayer:_player];
playerLayer.frame = playerFrame;
playerLayer.videoGravity = AVLayerVideoGravityResizeAspect;
[self.view.layer addSublayer:playerLayer];
//Observer
[self addVideoTimerObserver];
[self addNotifications];
}
#pragma mark - TopView
- (void)layoutTopView {
self.topView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, self.view.bounds.size.height, TopViewHeight)];
_topView.backgroundColor = [UIColor blackColor];
_topView.alpha = 0.6;
self.backBtn = [[UIButton alloc]initWithFrame:CGRectMake(20, 10, 30, 30)];
[_backBtn setImage:[UIImage imageNamed:@"player_back"] forState:UIControlStateNormal];
[_backBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[_backBtn addTarget:self action:@selector(backClick) forControlEvents:UIControlEventTouchUpInside];
[_topView addSubview:_backBtn];
self.titleL = [[UILabel alloc]initWithFrame:CGRectMake(70, 10, self.view.bounds.size.width - 140, 30)];
_titleL.font = [UIFont fontWithName:@"STHeitiSC-Light" size:20];
_titleL.backgroundColor = [UIColor clearColor];
_titleL.text = self.titleStr;
_titleL.textColor = [UIColor whiteColor];
_titleL.textAlignment = NSTextAlignmentCenter;
[_topView addSubview:_titleL];
[self.view addSubview:_topView];
}
//返回Click
- (void)backClick {
[self.player pause];
if ([self.delegate respondsToSelector:@selector(moviePlayerVCCallbackWithTime:isWatchFinish:)]) {
[self.delegate moviePlayerVCCallbackWithTime:self.currentTime isWatchFinish:self.isWatchFinish];
}
[self dismissViewControllerAnimated:YES completion:nil];
}
//設(shè)置Click
- (void)settingsClick:(UIButton *)btn {
_isShowToolView = NO;
[UIView animateWithDuration:0.5 animations:^{
_topView.hidden = YES;
_bottomView.hidden = YES;
_videoSlider.hidden = YES;
}];
}
#pragma mark - BottomView
- (void)layoutBottomView {
_bottomView = [[UIView alloc]initWithFrame:CGRectMake(0, ViewWidth - BottomViewHeight, ViewHeight, BottomViewHeight)];
_bottomView.backgroundColor = [UIColor blackColor];
_bottomView.alpha = 0.6;
[self.view addSubview:_bottomView];
_playBtn = [[UIButton alloc]initWithFrame:CGRectMake(10, 10, 30, 30)];
[_playBtn setImage:[UIImage imageNamed:@"player_play"] forState:UIControlStateNormal];
[_playBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[_playBtn addTarget:self action:@selector(playBtnClick:) forControlEvents:UIControlEventTouchUpInside];
[_bottomView addSubview:_playBtn];
_timeL = [[UILabel alloc]initWithFrame:CGRectMake(50, 10, self.view.bounds.size.height - 70, 30)];
_timeL.backgroundColor = [UIColor clearColor];
_timeL.textColor = [UIColor whiteColor];
_timeL.textAlignment = NSTextAlignmentRight;
[_bottomView addSubview:_timeL];
//在totalTimeLabel上顯示總時(shí)間
_timeL.text = [NSString stringWithFormat:@"00:00/%@", [self getVideoLengthFromTimeLength:_totalTime]];
//進(jìn)度條
self.videoSlider = [[UISlider alloc]initWithFrame:CGRectMake(0, _bottomView.frame.origin.y - 10, _bottomView.frame.size.width, 20)];
[_videoSlider setMinimumTrackTintColor:[UIColor whiteColor]];
[_videoSlider setMaximumTrackTintColor:[UIColor colorWithRed:0.49f green:0.48f blue:0.49f alpha:1.00f]];
[_videoSlider setThumbImage:[UIImage imageNamed:@"video_slider_progressbar"] forState:UIControlStateNormal];
[_videoSlider addTarget:self action:@selector(scrubbingDidBegin) forControlEvents:UIControlEventTouchDown];
[_videoSlider addTarget:self action:@selector(sliderValueChanged) forControlEvents:UIControlEventValueChanged];
[_videoSlider addTarget:self action:@selector(scrubbingDidEnd) forControlEvents:(UIControlEventTouchUpInside | UIControlEventTouchCancel)];
[self.view addSubview:_videoSlider];
}
//按住滑塊
- (void)scrubbingDidBegin {
//暫停播放
[self playerSetPlay:NO];
//停止計(jì)時(shí)
[self.avTimer setFireDate:[NSDate distantFuture]];
self.isMoveSlider = YES;
}
//滑動(dòng)值變化
- (void)sliderValueChanged {
//設(shè)置滑動(dòng)的時(shí)間
float dragedSeconds = floorf(self.totalTime * _videoSlider.value);
CMTime newCMTime = CMTimeMake(dragedSeconds, 1.0);
self.timeL.text = [NSString stringWithFormat:@"%@/%@", [self getStringFromCMTime:newCMTime], [self getVideoLengthFromTimeLength:self.totalTime]];
}
//釋放滑塊
- (void)scrubbingDidEnd {
//1.通過實(shí)際百分比獲取秒數(shù)桐磁。
float dragedSeconds = floorf(self.totalTime * _videoSlider.value);
CMTime newCMTime = CMTimeMake(dragedSeconds, 1.0);
//2.更新電影到實(shí)際秒數(shù)。
[_player seekToTime:newCMTime];
//3.重新開始播放
[self playerSetPlay:YES];
//重新開始計(jì)時(shí)
[self.avTimer setFireDate:[NSDate dateWithTimeIntervalSinceNow:5]];
self.isMoveSlider = NO;
}
//播放/暫停
- (void)playBtnClick:(UIButton *)btn{
if (!_isPlay) {
[self playerSetPlay:YES];
} else {
[self playerSetPlay:NO];
}
}
#pragma mark - Set Play
- (void)playerSetPlay:(BOOL)isPlay{
if (isPlay) {
[_player play];
_isPlay = YES;
[_playBtn setImage:[UIImage imageNamed:@"player_pause"] forState:UIControlStateNormal];
} else {
[_player pause];
_isPlay = NO;
[_playBtn setImage:[UIImage imageNamed:@"player_play"] forState:UIControlStateNormal];
}
}
#pragma mark - Touch
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
CGPoint point = [[touches anyObject] locationInView:self.view];
if (_isShowToolView) {
//上下View為顯示狀態(tài)票渠，此時(shí)點(diǎn)擊上下View直接return
if ((point.y > CGRectGetMinY(self.topView.frame) && point.y < CGRectGetMaxY(self.topView.frame)) || (point.y < CGRectGetMaxY(self.bottomView.frame) && point.y > CGRectGetMinY(self.bottomView.frame))) {
return;
}
_isShowToolView = NO;
[UIView animateWithDuration:0.5 animations:^{
_topView.hidden = YES;
_bottomView.hidden = YES;
_videoSlider.hidden = YES;
}];
//上下視圖消失,關(guān)閉計(jì)時(shí)
[self.avTimer setFireDate:[NSDate distantFuture]];
} else {
_isShowToolView = YES;
[UIView animateWithDuration:0.5 animations:^{
_topView.hidden = NO;
_bottomView.hidden = NO;
_videoSlider.hidden = NO;
}];
//上下視圖出現(xiàn),開啟計(jì)時(shí)
[self.avTimer setFireDate:[NSDate dateWithTimeIntervalSinceNow:5]];
}
}
#pragma mark - Timer
//計(jì)時(shí) 5秒Hide Bar
- (NSTimer *)avTimer {
if (!_avTimer) {
self.avTimer = [NSTimer scheduledTimerWithTimeInterval:0 target:self selector:@selector(handleHideBar) userInfo:nil repeats:YES];
}
return _avTimer;
}
- (void)handleHideBar {
_isShowToolView = NO;
[UIView animateWithDuration:0.5 animations:^{
_topView.hidden = YES;
_bottomView.hidden = YES;
_videoSlider.hidden = YES;
}];
[self.avTimer setFireDate:[NSDate distantFuture]];
}
#pragma mark - 狀態(tài)欄與橫屏設(shè)置
//隱藏狀態(tài)欄
- (BOOL)prefersStatusBarHidden{
return YES;
}
//默認(rèn)為右旋轉(zhuǎn)
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
return UIInterfaceOrientationLandscapeRight;
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - TimerObserver
//檢測(cè)觀看時(shí)間
- (void)addVideoTimerObserver {
__weak typeof(self) weakSelf = self;
_timeObser = [_player addPeriodicTimeObserverForInterval:CMTimeMake(1, 1) queue:NULL usingBlock:^(CMTime time) {
weakSelf.currentTime = time;
if (!weakSelf.isMoveSlider) {
weakSelf.timeL.text = [NSString stringWithFormat:@"%@/%@", [weakSelf getStringFromCMTime:time], [weakSelf getVideoLengthFromTimeLength:weakSelf.totalTime]];
CGFloat watchTime = time.value / time.timescale;
CGFloat progress = watchTime / self.totalTime * 1.0f;
[weakSelf.videoSlider setValue:progress animated:NO];
}
}];
}
- (void)removeVideoTimerObserver {
[_player removeTimeObserver:_timeObser];
}
#pragma mark - Notifications
- (void)addNotifications {
/*
* Video
*/
//監(jiān)聽status屬性
[self.playerItem addObserver:self forKeyPath:@"status"options:NSKeyValueObservingOptionNew context:nil];
//視頻播放完成
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playerItemDidReachEnd:) name:AVPlayerItemDidPlayToEndTimeNotification object:nil];
/*
* Application
*/
//進(jìn)入后臺(tái)
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(appDidEnterBackground) name:UIApplicationWillResignActiveNotification object:nil];
//進(jìn)入前臺(tái)
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(appDidEnterPlayground) name:UIApplicationDidBecomeActiveNotification object:nil];
//監(jiān)聽耳機(jī)狀態(tài)
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(audioRouteChangeListenerCallback:) name:UIApplicationDidBecomeActiveNotification object:nil];
}
- (void)removeNotifications {
[self.playerItem removeObserver:self forKeyPath:@"status"];
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
#pragma mark - KVO
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if (object == self.playerItem) {
if ([keyPath isEqualToString:@"status"]) {
AVPlayerStatus status = [[change objectForKey:NSKeyValueChangeNewKey] integerValue];
switch (status) {
case AVPlayerStatusUnknown:
{
NSLog(@"未知錯(cuò)誤:%@", self.playerItem.error);
}
break;
case AVPlayerStatusReadyToPlay:
{
NSLog(@"準(zhǔn)備播放");
}
break;
case AVPlayerStatusFailed:
{
NSLog(@"播放失敗:%@", self.playerItem.error);
}
break;
default:
break;
}
}
}
}
//觀看結(jié)束
- (void)playerItemDidReachEnd:(NSNotification *)notification {
self.isWatchFinish = YES;
[self backClick];
}
//進(jìn)入后臺(tái)
- (void)appDidEnterBackground {
[self playerSetPlay:NO];
}
//進(jìn)入前臺(tái)
- (void)appDidEnterPlayground {
}
//檢測(cè)耳機(jī)狀態(tài)
- (void)audioRouteChangeListenerCallback:(NSNotification *)notification {
NSDictionary *interuptionDict = notification.userInfo;
NSInteger routeChangeReason = [[interuptionDict valueForKey:AVAudioSessionRouteChangeReasonKey] integerValue];
switch (routeChangeReason) {
case AVAudioSessionRouteChangeReasonNewDeviceAvailable:
NSLog(@"耳機(jī)插入");
break;
case AVAudioSessionRouteChangeReasonOldDeviceUnavailable:
{
NSLog(@"耳機(jī)拔出");
[self playerSetPlay:NO];
}
break;
default:
break;
}
}
#pragma mark - Utils
- (NSString *)getStringFromCMTime:(CMTime)time {
float currentTimeValue = (CGFloat)time.value/time.timescale;//得到當(dāng)前的播放時(shí)
NSDate * currentDate = [NSDate dateWithTimeIntervalSince1970:currentTimeValue];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSInteger unitFlags = NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond ;
NSDateComponents *components = [calendar components:unitFlags fromDate:currentDate];
if (currentTimeValue >= 3600 ) {
return [NSString stringWithFormat:@"%@:%@:%@",components.hour < 10 ? [NSString stringWithFormat:@"0%ld", (long)components.hour] : [NSString stringWithFormat:@"%ld", (long)components.hour], components.minute < 10 ? [NSString stringWithFormat:@"0%ld", (long)components.minute] : [NSString stringWithFormat:@"%ld", (long)components.minute], components.second < 10 ? [NSString stringWithFormat:@"0%ld", (long)components.second] : [NSString stringWithFormat:@"%ld", (long)components.second]];
} else {
return [NSString stringWithFormat:@"%@:%@",components.minute < 10 ? [NSString stringWithFormat:@"0%ld", (long)components.minute] : [NSString stringWithFormat:@"%ld", (long)components.minute], components.second < 10 ? [NSString stringWithFormat:@"0%ld", (long)components.second] : [NSString stringWithFormat:@"%ld", (long)components.second]];
}
}
- (NSString *)getVideoLengthFromTimeLength:(CGFloat)timeLength {
NSDate *date = [NSDate dateWithTimeIntervalSince1970:timeLength];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSInteger unitFlags = NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond ;
NSDateComponents *components = [calendar components:unitFlags fromDate:date];
if (timeLength >= 3600 ) {
return [NSString stringWithFormat:@"%@:%@:%@",components.hour < 10 ? [NSString stringWithFormat:@"0%ld", (long)components.hour] : [NSString stringWithFormat:@"%ld", (long)components.hour], components.minute < 10 ? [NSString stringWithFormat:@"0%ld", (long)components.minute] : [NSString stringWithFormat:@"%ld", (long)components.minute], components.second < 10 ? [NSString stringWithFormat:@"0%ld", (long)components.second] : [NSString stringWithFormat:@"%ld", (long)components.second]];
} else {
return [NSString stringWithFormat:@"%@:%@",components.minute < 10 ? [NSString stringWithFormat:@"0%ld", (long)components.minute] : [NSString stringWithFormat:@"%ld", (long)components.minute], components.second < 10 ? [NSString stringWithFormat:@"0%ld", (long)components.second] : [NSString stringWithFormat:@"%ld", (long)components.second]];
}
}
#pragma mark - dealloc
//回收
- (void)dealloc {
[self removeVideoTimerObserver];
[self removeNotifications];
[self.avTimer invalidate];
self.avTimer = nil;
self.player = nil;
self.playerItem = nil;
}
@end
