我想在 uitableviewcell 内的 uicollectionviewcell 中检测对 imageview 的点击
我正在使用 api 响应在我的 tableview 中构建数据
我有这个 API 响应:
{"status":1,"data":{"blocks":[{"name":"CustomBlock","description":"CustomDescription","itemsType":"game","items":[510234,78188,15719,37630]}], "items":[{"id:"1", name: "testgame"}]}
BlocksViewController.swift
class BlocksViewController: UIViewController, UITableViewDataSource, UICollectionViewDataSource, UICollectionViewDelegate, UITableViewDelegate {
var blocks = [Block]() // I'm getting blocks in this controller
var items : BlockItem! // and items
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return blocks[collectionView.tag].items.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
guard let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "GameCollectionCell", for: indexPath) as? GameCollectionCell else { return
UICollectionViewCell() }
if let found = items.game.first(where: {$0.id == String(blocks[collectionView.tag].items[indexPath.row])}) {
cell.gameName.text = found.name
cell.gameImage.kf.indicatorType = .activity
let processor = DownsamplingImageProcessor(size: CGSize(width: 225, height: 300))
cell.gameImage.kf.setImage(
with: URL(string: found.background_image ?? ""),
options: [
.processor(processor),
.scaleFactor(UIScreen.main.scale),
.transition(.fade(0.2)),
.cacheOriginalImage
])
}
else {
cell.gameName.text = ""
cell.gameImage.image = nil
}
return cell
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return blocks.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
guard let cell = tableView.dequeueReusableCell(withIdentifier: "BlockCell") as? BlockCell else { return UITableViewCell() }
cell.blockName.text = blocks[indexPath.row].name
cell.blockDescription.text = blocks[indexPath.row].description
cell.setScrollPosition(x: offsets[indexPath] ?? 0)
cell.gameCollectionCell.delegate = self
cell.gameCollectionCell.dataSource = self
cell.gameCollectionCell.tag = indexPath.row
cell.gameCollectionCell.reloadData()
return cell
}
我正在这个 Controller 中获取方 block 和元素。现在我想在 gamecollectionCell(BlockCell(TableviewCell)内的 UIcollectionViewCell)中的图像上使用 LongTapGestureRecognizer 检测点击。我该怎么做?或者可能有任何建议如何改进这里的逻辑?
好的,我在 cellForItemAt 中添加了这样的手势识别器:
cell.addGestureRecognizer(UILongPressGestureRecognizer.init(target: self, action: #selector(addGamePopUp)))
然后我需要在长按时为 uiimageview 设置动画。
var selectedGameCell : GameCollectionCell?
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
self.selectedGameCell = collectionView.dequeueReusableCell(withReuseIdentifier: "GameCollectionCell", for: indexPath) as? GameCollectionCell
}
和
@IBAction func addGamePopUp(_ sender: UILongPressGestureRecognizer) {
if (sender.state == UIGestureRecognizer.State.began){
UIView.animate(withDuration: 0.3, animations: {
self.selectedGameCell?.gameImage.transform = CGAffineTransform(scaleX: 0.95,y: 0.95);
}) { (Bool) in
UIView.animate(withDuration: 0.3, animations: {
self.selectedGameCell?.gameImage.transform = CGAffineTransform(scaleX: 1,y: 1);
});
}
}
}
但是还是不行。我错过了什么吗?
最佳答案
如果您想使用长 TapGestureRecognizer,只需将一个添加到 collectionView 的 cellForItemAtIndexPath 方法中的单元格中,如下所示:
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "SubjectCellId", for: indexPath) as? SubjectCell {
cell.addGestureRecognizer(UILongPressGestureRecognizer.init(target: self, action: #selector(someMethod)))
return cell
}
return UICollectionViewCell()
}
关于ios - 检测点击 UITableViewCell 中的 UIViewCollectionCell,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/55732683/