我有一个 UICollectionView 显示图像缩略图。网格中的每个 ImageView 都有一个点击手势。我的问题是,我怎样才能捕获被窃听的确切单元格?例如。 “点击索引 #43”。
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这是我最接近的:
UICollectionViewController
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView
cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
int row = [indexPath row];
CollectionViewCell *Cell = [collectionView
dequeueReusableCellWithReuseIdentifier:@"Cell"
forIndexPath:indexPath];
// Enable tap gesture on each ImageView
[Cell.ImageView setUserInteractionEnabled:YES];
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapGesture)];
[tapGesture setNumberOfTouchesRequired:1];
[tapGesture setNumberOfTapsRequired:1];
[tapGesture setDelegate:self];
[Cell.ImageView addGestureRecognizer:tapGesture];
Cell.ImageView.tag = row; // This tags correctly
}
- (void)tapShowImage // Also, for some reason,
// - (void)handleTapGesture:(UITapGestureRecognizer *)sender
// doesn't work. I get an invalid selector error.
{
NSLog(@"%i", Cell.ImageView.tag);
// Doesn't work because I can't call Cell.ImageView.tag here.
// Might be because I"m using SDWebImage to load the image
// into the ImageView above but not sure.
}
最佳答案
您无需为每个单元格添加点击识别器。您可以在 collectionView:didSelectItemAtIndexPath: 方法中获取被点击单元格的 indexPath。
关于ios - 从 Tap Gesture 中获取特定的 Collection View 单元格,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/14078060/