Swift 从UICollectionView将图像名称打印到控制台
我正在使用UICollectionView,其中我有一个带有轻触手势识别器的UIImage作为我的CollectionView的单元模型。我也有57个不同名称的图像,我想打印到控制台上,这取决于我点击的图像 这是我的密码:Swift 从UICollectionView将图像名称打印到控制台,swift,xcode,swift5,Swift,Xcode,Swift5,我正在使用UICollectionView,其中我有一个带有轻触手势识别器的UIImage作为我的CollectionView的单元模型。我也有57个不同名称的图像,我想打印到控制台上,这取决于我点击的图像 这是我的密码: import UIKit class ViewController: UIViewController { let OLLData = OLLCases() // MARK: - Outlets @IBOutlet weak var
import UIKit
class ViewController: UIViewController {
let OLLData = OLLCases()
// MARK: - Outlets
@IBOutlet weak var collectionView: UICollectionView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
// MARK: - Navigation
@IBAction func isSelected(_ sender: Any) {
print("selected \(caseName)")
}
}
//MARK: - Data source
extension ViewController: UICollectionViewDataSource {
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return OLLData.list.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "PhotoCell", for: indexPath) as! PhotoCell
let image = OLLData.list[indexPath.item].image
let caseName = OLLData.list[indexPath.item].image
cell.label.text = caseName
cell.imageView.image = UIImage(named: image)
return cell
}
}
然后我有另一个swift文件光电管,在那里我有标签和图像视图的IBOutlets
有什么方法可以做到这一点
谢谢。您应该实现didSelectItemAt方法,然后按如下方式获取您选择的单元格:
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let cell = collectionView.cellForItem(at: indexPath) as! PhotoCell
print(cell.imageView)
print(cell.label)
}
希望获得此帮助您应该实现didSelectItemAt方法,然后按如下方式获取您选择的单元格:
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let cell = collectionView.cellForItem(at: indexPath) as! PhotoCell
print(cell.imageView)
print(cell.label)
}
希望此帮助在ViewController中的最后一个扩展名下面添加UICollectionViewDelegate的扩展名:
extension ViewController: UICollectionViewDelegate {
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
print(OLLData.list[indexPath.item].image)
}
}
在ViewController中的最后一个扩展名下面添加UICollectionViewDelegate的扩展名:
extension ViewController: UICollectionViewDelegate {
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
print(OLLData.list[indexPath.item].image)
}
}
您可以使用UICollectionViewDelegate方法来检测单元格上的点击,但要使用该方法,首先,您的UICollectionView需要使用UIViewController确认该委托,如:
在viewDidLoad方法中
那么你需要换一个
extension ViewController: UICollectionViewDataSource {
与
并使用委托方法
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
}
您可以使用
let caseName = OLLData.list[indexPath.item].image
print(caseName)
didSelectItemAt看起来像:
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let caseName = OLLData.list[indexPath.item].image
print(caseName)
}
extension ViewController: UICollectionViewDataSource, UICollectionViewDelegate {
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return OLLData.list.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "PhotoCell", for: indexPath) as! PhotoCell
let image = OLLData.list[indexPath.item].image
let caseName = OLLData.list[indexPath.item].image
cell.label.text = caseName
cell.imageView.image = UIImage(named: image)
return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let caseName = OLLData.list[indexPath.item].image
print(caseName)
}
}
编辑:
您的扩展将如下所示:
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let caseName = OLLData.list[indexPath.item].image
print(caseName)
}
extension ViewController: UICollectionViewDataSource, UICollectionViewDelegate {
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return OLLData.list.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "PhotoCell", for: indexPath) as! PhotoCell
let image = OLLData.list[indexPath.item].image
let caseName = OLLData.list[indexPath.item].image
cell.label.text = caseName
cell.imageView.image = UIImage(named: image)
return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let caseName = OLLData.list[indexPath.item].image
print(caseName)
}
}
您可以使用UICollectionViewDelegate方法来检测单元格上的点击,但要使用该方法,首先,您的UICollectionView需要使用UIViewController确认该委托,如:
在viewDidLoad方法中
那么你需要换一个
extension ViewController: UICollectionViewDataSource {
与
并使用委托方法
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
}
您可以使用
let caseName = OLLData.list[indexPath.item].image
print(caseName)
didSelectItemAt看起来像:
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let caseName = OLLData.list[indexPath.item].image
print(caseName)
}
extension ViewController: UICollectionViewDataSource, UICollectionViewDelegate {
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return OLLData.list.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "PhotoCell", for: indexPath) as! PhotoCell
let image = OLLData.list[indexPath.item].image
let caseName = OLLData.list[indexPath.item].image
cell.label.text = caseName
cell.imageView.image = UIImage(named: image)
return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let caseName = OLLData.list[indexPath.item].image
print(caseName)
}
}
编辑:
您的扩展将如下所示:
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let caseName = OLLData.list[indexPath.item].image
print(caseName)
}
extension ViewController: UICollectionViewDataSource, UICollectionViewDelegate {
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return OLLData.list.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "PhotoCell", for: indexPath) as! PhotoCell
let image = OLLData.list[indexPath.item].image
let caseName = OLLData.list[indexPath.item].image
cell.label.text = caseName
cell.imageView.image = UIImage(named: image)
return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let caseName = OLLData.list[indexPath.item].image
print(caseName)
}
}
所以你想检测点击图像或整个单元格?最好是图像,但不太重要。那么你想检测点击图像或整个单元格?最好是图像,但不太重要。谢谢,但我很困惑-我是否将DIDSelectItems与NumberOfItems选择功能放在同一级别?是的,您需要将其与NumberOfItems选择功能放在一起好的,谢谢。但是,我想我需要移除轻触手势识别器才能使其工作?如果轻触图像对您不重要,则可以。很乐意帮助..:谢谢,但我很困惑-我是否将DIDSelectItems设置为与NumberOfItems选择功能相同的级别?是的,您需要将其与NumberOfItems选择功能一起设置好的,谢谢。但是,我想我需要移除轻触手势识别器才能使其工作?如果轻触图像对您不重要,则可以。很乐意帮助..: