Question

我正在UITableViewCell播放视频。为此，我使用以下代码：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *VideoCellIdentifier = @"VideoCell";

    NSDictionary *_response_data = [self.response objectAtIndex:indexPath.row];

    VideoCustomCell *cell = (VideoCustomCell *) [tableView dequeueReusableCellWithIdentifier:VideoCellIdentifier];

    if (cell == nil) {
        NSArray *topLevelObjects;
        topLevelObjects = [[NSBundle mainBundle] loadNibNamed:@"VideoCustomCell" owner:self options:nil];
        for (id currentObject in topLevelObjects){
            if ([currentObject isKindOfClass:[UITableViewCell class]]){
                cell =  (VideoCustomCell *) currentObject;
                cell.delegate  = self;
                break;
            }
        }
    }

    avPlayer = [[AVPlayer playerWithURL:[NSURL URLWithString:[_response_data valueForKey:@"media_id"]]] retain];
    avPlayerLayer = [AVPlayerLayer playerLayerWithPlayer:avPlayer];
    avPlayerLayer.frame = cell.video_player_view.layer.bounds;
    avPlayerLayer.videoGravity = AVLayerVideoGravityResize;
    [cell.video_player_view.layer addSublayer: avPlayerLayer];
    [avPlayer play];

    return cell;
}

视频正常播放，但我想一次只播放一个视频。播放完全可见的单元格视频。

Answer 1

使用这两种滚动和处理播放视频的方法。当tableview停止滚动时，这两种方法将以任一方式调用

-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
    if(![scrollView isDecelerating] && ![scrollView isDragging]){

        [self playVideo];
    }
}

- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
    if(!decelerate){

        [self playVideo];
    }
}


-(void)playVideo
{
    if(aryTableData.count==0){
        return;
    }

    for(UITableViewCell *cell in [tblView visibleCells])
    {
        VideoCell *ccell = (VideoCell*)cell;

        CGRect ccellRect = [APP_DEL.window convertRect:ccell.bounds fromView:ccell];

        // NSLog(@"--Cell frame %f",ccellRect.origin.y);

        //Set Condition of cell visible within some range
        if(ccellRect.origin.y>-200)
        {
            // Handle Video Play

            int row = [[tblView indexPathForCell:ccell] row];
            NSString *strUrl = [[aryTableData objectAtIndex:row] valueForKey:@"video_url"] ;
            [ccell startVideoFromURL:strUrl]; //You can handle video play in cell or table view
        }
    }
}

Answer 2

<强> VideoTableCell.h

#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>

@interface VideoTableCell : UITableViewCell

@property (strong, nonatomic) IBOutlet UIView *viewForVideo;
@property (strong, nonatomic) IBOutlet UIImageView *imgThumb;
@property (strong, nonatomic) IBOutlet UIButton *btnPlay;
@property (strong, nonatomic) AVPlayerItem* videoItem;
@property (strong, nonatomic) AVPlayer* videoPlayer;
@property (strong, nonatomic) AVPlayerLayer* avLayer;

@end

<强> VideoTableCell.m

#import "VideoTableCell.h"

@implementation VideoTableCell

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];

    return self;
}
- (void)layoutSubviews
{
    [super layoutSubviews];
    [self.avLayer setFrame:CGRectMake(self.viewForVideo.frame.origin.x, self.viewForVideo.frame.origin.y, self.viewForVideo.frame.size.width,  self.viewForVideo.frame.size.height)];
}

@end

<强> VideoVC.h

#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>

@interface VideoVC : UIViewController <UITableViewDataSource, UITableViewDelegate>

@property (strong, nonatomic) IBOutlet UITableView *tblData;

@end

<强> VideoVC.m

#import "VideoVC.h"
#import "VideoTableCell.h"

@interface VideoVC ()
{
    NSArray *arrVideo ;
    bool isScrolling;
    int index;
    BOOL fullvisible ;
}
@end  

@implementation VideoVC

- (void)viewDidLoad
{
    [super viewDidLoad];    

    arrVideo = [[NSArray alloc]initWithObjects:@"http://video/1.mp4",@"http://video/2.mp4", @"http://video/3.mp4", @"http://video/4.mp4", @"http://video/5.mp4", nil];
    fullvisible = YES;   
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return arrVideo.count;
}

- (UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    VideoTableCell *cell = [tableView dequeueReusableCellWithIdentifier:@"VideoTableCell"];
    if (cell == nil)
    {
        cell = [[[NSBundle mainBundle] loadNibNamed:@"VideoTableCell" owner:self options:nil]objectAtIndex:0];
    }

    int temp =  [self getVisibleIndex];
    if (temp == indexPath.row && fullvisible)
    {
        cell.imgThumb.hidden = YES ;
        //NSLog(@"fullvisible == 1");
        NSURL *url = [NSURL URLWithString:[arrVideo objectAtIndex:indexPath.row]];

        cell.videoItem = [AVPlayerItem playerItemWithURL:url];
        cell.videoPlayer = [AVPlayer playerWithPlayerItem:cell.videoItem];
        cell.avLayer = [AVPlayerLayer playerLayerWithPlayer:cell.videoPlayer];

        [cell.avLayer setBackgroundColor:[UIColor whiteColor].CGColor];
        // [cell.avLayer setVideoGravity:AVLayerVideoGravityResizeAspectFill];
        [cell.contentView.layer addSublayer:cell.avLayer];
        [cell.videoPlayer play];

        [cell setSelectionStyle:UITableViewCellSelectionStyleNone];
    }
    else
    {
        cell.imgThumb.hidden = NO ;
        cell.videoPlayer = nil;
        [cell.avLayer removeFromSuperlayer];
        cell.videoItem = nil;
        [cell.videoPlayer pause];
    }
    return cell ;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 393 ;
}

- (int)getVisibleIndex
{   
    for (NSIndexPath *indexPath in _tblData.indexPathsForVisibleRows)                                     
    {
        CGRect cellRect = [_tblData rectForRowAtIndexPath:indexPath];
        BOOL isVisible = CGRectContainsRect(_tblData.bounds, cellRect);
        if (isVisible)
        {
            index = (int)indexPath.row ;
        }
    }
    return index ;
}

- (void)scrollViewDidScroll:(UIScrollView *)aScrollView
{

    NSArray* cells = _tblData.visibleCells;
    for (VideoTableCell* cell in cells)
    {
            NSIndexPath *path = [_tblData indexPathForCell:cell];
            index = (int) path.row;
            fullvisible = YES;
            [_tblData reloadData];
    }
}

如何在iOS中的UITableViewCell中播放视频（自动播放）

2 个答案: