我正在实现 iCarousel(使用 Coverflow 类型)来显示我的应用程序中可用的一些视频的一堆图像。(2个单独的轮播,同样的问题)
我使用 numberOfItemsInCarousel(当前为 60)和 viewForItemAtIndex 的视频数组来使用我的数组中的对象来构建视图。
但是,只有 5 个视频被使用。因此,轮播中显示了 60 个项目,但重复的只是相同的 5 个项目。当我在“viewForItemAtIndex”中记录索引时,它只被调用 5 次(0,1,...5 是日志结果)。经过一些测试,似乎唯一被调用的索引是默认情况下在轮播中可见的任何内容。
是什么赋予了?*阵列已经过测试,以确保它们填充了所有独特的视频。数组很好,它与 iCarousel 方法有关。
- (NSUInteger)numberOfItemsInCarousel:(iCarousel *)carousel{
if(carousel==freeCarousel){
NSLog(@"Free: %i",freeVideos.count);
return freeVideos.count;
}
if(carousel==feeCarousel){
NSLog(@"Fee: %i",feeVideos.count);
return feeVideos.count;
}
return 0;
}
- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(UIView *)view{
NSLog(@"TESTING");
if (view == nil){
//Copy array for easier use of global Video / File object
NSArray *copy = [[NSArray alloc] init];
if(carousel==freeCarousel){
copy = [NSArray arrayWithArray:freeVideos];
}
else if(carousel==feeCarousel){
copy = [NSArray arrayWithArray:feeVideos];
}
Videos *currentVideo = [copy objectAtIndex:index];
Files *file = [currentVideo valueForKey:@"files"];
NSLog(@"TITLE TEST: %@",currentVideo.title);
//Video Button
UIButton *buttonVideo = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 465, 310)];
[buttonVideo setTag:[currentVideo.videoID intValue]];
[buttonVideo addTarget:self action:@selector(showVideoDetails:) forControlEvents:UIControlEventTouchUpInside];
//Thumbnail
UIImageView *videoThumbnail = [[UIImageView alloc] initWithFrame:buttonVideo.bounds];
//Border
[videoThumbnail setBackgroundColor:[UIColor whiteColor]];
//Caption
UIImage *captionImage = [UIImage imageNamed:@"video-box-caption"];
UILabel *caption = [[UILabel alloc] initWithFrame:CGRectMake(0, videoThumbnail.frame.size.height-captionImage.size.height, videoThumbnail.frame.size.width, captionImage.size.height)];
[caption setBackgroundColor:[UIColor colorWithPatternImage:captionImage]];
[caption setTextAlignment:NSTextAlignmentCenter];
[caption setFont:[UIFont fontWithName:@"Open Sans Condensed" size:16]];
[caption setTextColor:[UIColor whiteColor]];
[caption setText:currentVideo.title];
[videoThumbnail addSubview:caption];
if(file.thumbnailPath!=(id)[NSNull null] || ![file.thumbnailPath isEqualToString:@"missing_image.png"]){
UIImage *thumbnailImage = [[DataManager sharedManager] generateThumbnailImage:currentVideo];
[videoThumbnail setImage:thumbnailImage];
[buttonVideo addSubview:videoThumbnail];
}else{
UIImage *thumbnailImage = [UIImage imageNamed:@"video-details-thumbnail"];
[videoThumbnail setImage:thumbnailImage];
[buttonVideo addSubview:videoThumbnail];
}
view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, buttonVideo.frame.size.width, buttonVideo.frame.size.height)];
[view addSubview:buttonVideo];
}
return view;
}