滚动播放视频 播放完毕自动滚动播放下一个视频

项目介绍：

基于XLVideoPlayer的自动滚动视频播放

核心代码判断显示中的cell哪个是最佳的显示位置- (void)filterShouldPlayCellWithScrollDirection:(BOOL)isScrollDownward { //顶部 if (self.tableView.contentOffset.y<=0) { //其他的已经暂停播放 if (self.lastOrCurrentPlayIndex==-1) { [self playVideoWithShouldToPlayIndex:0]; }else{ //第一个正在播放 if (self.lastOrCurrentPlayIndex==0) { return; } //其他的没有暂停播放,先暂停其他的再播放第一个 [self stopVideoWithShouldToStopIndex:self.lastOrCurrentPlayIndex]; [self playVideoWithShouldToPlayIndex:0]; } return; } //底部 if (self.tableView.contentOffset.y+self.tableView.frame.size.height+1>=self.tableView.contentSize.height) { //其他的已经暂停播放 if (self.lastOrCurrentPlayIndex==-1) { [self playVideoWithShouldToPlayIndex:self.dataArray.count-1]; }else{ //最后一个正在播放 if (self.lastOrCurrentPlayIndex==self.dataArray.count-1) { return; } //其他的没有暂停播放,先暂停其他的再播放最后一个 [self stopVideoWithShouldToStopIndex:self.lastOrCurrentPlayIndex]; [self playVideoWithShouldToPlayIndex:self.dataArray.count-1]; } return; } [self stopVideoWithShouldToStopIndex:self.lastPlayCell]; //中部(找出可见cell中最合适的一个进行播放) NSArray *cellsArray = [self.tableView visibleCells]; NSArray *newArray = nil; if (!isScrollDownward) { newArray = [cellsArray reverseObjectEnumerator].allObjects; }else{ newArray = cellsArray; } [newArray enumerateObjectsUsingBlock:^(ScrollPlayVideoCell *cell, NSUInteger idx, BOOL * _Nonnull stop) { NSLog(@'播放视频 %ld',(long)cell.row); CGRect rect = [cell.videoFirstImageView convertRect:cell.videoFirstImageView.bounds toView:self]; CGFloat topSpacing = rect.origin.y; CGFloat bottomSpacing = self.frame.size.height-rect.origin.y-rect.size.height; if (topSpacing>=-rect.size.height/3&&bottomSpacing>=-rect.size.height/3) { if (self.lastOrCurrentPlayIndex==-1) { if (self.lastOrCurrentPlayIndex!=cell.row) { [self cellPlay:cell]; } } *stop = YES; }else{ [self stopVideoWithShouldToStopIndex:cell.row]; } }]; } 让指定的cell播放视频 -(void)cellPlay:(ScrollPlayVideoCell *)cell{ if(self.dataArray.count<=0){ return; } NSIndexPath *path = [NSIndexPath indexPathForRow:cell.row inSection:0]; __weak typeof(self) weakSelf = self; __weak XLVideoPlayer *beplayer = _player; if (_player && cell.row == self.lastPlayCell) { return; } [_player removeFromSuperview]; _player = [[XLVideoPlayer alloc] init]; _player.completedPlayingBlock = ^(XLVideoPlayer *player) { if (weakSelf.lastPlayCell != weakSelf.dataArray.count-1) { if(weakSelf.tableView.contentOffset.y + cellHeigh + weakSelf.tableView.frame.size.height > weakSelf.tableView.contentSize.height){ [weakSelf.tableView setContentOffset:CGPointMake(0, weakSelf.tableView.contentSize.height -weakSelf.tableView.frame.size.height) animated:YES]; NSLog(@'滑动到最后一个视频 %f',weakSelf.tableView.contentSize.height -weakSelf.tableView.frame.size.height); }else if(weakSelf.tableView.contentOffset.y + cellHeigh + weakSelf.tableView.frame.size.height < weakSelf.tableView.contentSize.height){ [weakSelf.tableView setContentOffset:CGPointMake(0, weakSelf.tableView.contentOffset.y + cellHeigh) animated:YES]; NSLog(@'滑动到下一个视频 %f',weakSelf.tableView.contentOffset.y + cellHeigh); }else{ //直接播放下一个 因为当前位置正好等于播放最后一条的位置 所以不再执行设置contentOffset的方法 [weakSelf playNext]; } } [beplayer setStatusBarHidden:NO]; }; _player.slider.value = 0; _player.videoUrl = cell.model.mp4_url;// item.mp4_url; [_player playerBindTableView:self.tableView currentIndexPath:path]; _player.frame = cell.videoBackView.bounds; [_player.player play]; //在cell上加载播放器 [cell.contentView addSubview:_player]; self.lastOrCurrentPlayIndex = cell.row; self.lastPlayCell = cell.row; cell.topblackView.hidden = YES; } 调用时机:滚动停止的时候;- (void)scrollViewDidScroll:(UIScrollView *)scrollView{ //判断滚动方向 if (scrollView.contentOffset.y>self.lastScrollViewContentOffsetY) { self.isScrollDownward = YES; }else{ self.isScrollDownward = NO; } self.lastScrollViewContentOffsetY = scrollView.contentOffset.y; //停止当前播放的 [self stopCurrentPlayingCell]; //找出适合播放的并点亮 [self filterShouldLightCellWithScrollDirection:self.isScrollDownward]; } -(void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset{ if (velocity.y >0 || velocity.y < 0) { rate = YES; }else{ rate = NO; } } - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{ if (rate == YES) { //停止的时候找出最合适的播放 NSLog(@'滑动停止时播放1'); [self filterShouldPlayCellWithScrollDirection:self.isScrollDownward]; } } - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{ if(decelerate == NO){ //停止的时候找出最合适的播放 NSLog(@'滑动停止时播放2'); [self filterShouldPlayCellWithScrollDirection:self.isScrollDownward]; } } //setContentOffset: animation: -(void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView{ [self playNext]; }播放下一个视频-(void)playNext{ //中部(找出可见cell中最合适的一个进行播放) NSArray *cellsArray = [self.tableView visibleCells]; [self stopVideoWithShouldToStopIndex:self.lastPlayCell]; for (ScrollPlayVideoCell *cell in cellsArray) { if (cell.row == self.lastPlayCell + 1) { NSLog(@'播放下一个视频： %ld',(long)cell.row); [self cellPlay:cell]; break; } } }

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