如何在UICollectionView中获取ID选定记录
如何在UICollectionView中获取ID选定记录
提问于 2018-06-04 16:14:37
我有这样的代码：
@IBOutlet weak var collectionView1: UICollectionView!
@IBOutlet weak var collectionView2: UICollectionView!
@IBAction func TipDetailBtnPressed(_ sender: Any) {
showSubViewInContainerView(view: "TipDetailsView", parm: 0)
}
@IBAction func TipDetailPDFBtnPressed(_ sender: Any) {
showSubViewInContainerView(view: "TipDetailsPDFView", parm: 0)
}
let tipObjectArray = [
TipObject(id: 1, description: "Jakość frytek nas nie zadawala", image: UIImage(named: "a1.jpg")),
TipObject(id: 2, description: "Kolor frytek jest niesatysfakcjonujący", image: UIImage(named: "a2.jpg")),
TipObject(id: 3, description: "LOT i reklamacja", image: UIImage(named: "a3.jpg")),
TipObject(id: 4, description: "Olej nie spełnia naszych oczekiwań", image: UIImage(named: "a4.jpg")),
TipObject(id: 5, description: "jakiś fajny", image: UIImage(named: "a5.jpg"))
]
let leafletsObjectArray = [
LeafletsObject(id: 1, description: "AV-AddedValueFries-Ulotka", image: UIImage(named: "d1.jpg")),
LeafletsObject(id: 2, description: "AV-AddedValueFries-Ulotka 23112", image: UIImage(named: "d2.jpg")),
LeafletsObject(id: 3, description: "Ulotka", image: UIImage(named: "d3.jpg")),
LeafletsObject(id: 4, description: "Fajna ulotka", image: UIImage(named: "d4.jpg")),
]
override func viewDidLoad() {
super.viewDidLoad()
collectionView1.dataSource = self
collectionView1.delegate = self
collectionView2.dataSource = self
collectionView2.delegate = self
}
func showSubViewInContainerView(view: String, parm: Int){
let viewController = self.parent as! MainViewControler
viewController.showSubViewInContainerView(view: view, parms: parm)
}
}
// MARK: - UI
extension TipViewController: UICollectionViewDelegate, UICollectionViewDataSource{
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
if collectionView == collectionView1 {
return tipObjectArray.count
}
else {
return leafletsObjectArray.count
}
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if collectionView == collectionView1 {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell1", for: indexPath) as! TipCollectionViewCellTips
cell.titleLabel.text = tipObjectArray[indexPath.item].description
cell.imgView.image = tipObjectArray[indexPath.item].image
return cell
}
else {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell2", for: indexPath) as! TipCollectionViewCellLeaflets
cell.titleLabel2.text = leafletsObjectArray[indexPath.item].description
cell.imgView2.image = leafletsObjectArray[indexPath.item].image
return cell
}
}
func showSubViewInContainerView(view: String, parms: Int){
let controller = storyboard!.instantiateViewController(withIdentifier: view)
systemContainerView.subviews.forEach { $0.removeFromSuperview() }
if view == "ConceptGalleryView" {
let con = controller as! ConceptGalleryViewController
con.idGallery = parms
}
systemContainerView.addSubview(controller.view)
addChildViewController(controller)
controller.view.translatesAutoresizingMaskIntoConstraints = false
systemContainerView.addSubview(controller.view)
NSLayoutConstraint.activate([
controller.view.leadingAnchor.constraint(equalTo: systemContainerView.leadingAnchor),
controller.view.trailingAnchor.constraint(equalTo: systemContainerView.trailingAnchor),
controller.view.topAnchor.constraint(equalTo: systemContainerView.topAnchor),
controller.view.bottomAnchor.constraint(equalTo: systemContainerView.bottomAnchor)
])
controller.didMove(toParentViewController: self)
self.actualVisibleView = view
}
}showSubViewInContainerView函数用于在containerView中显示视图。
我的故事板：https://i.stack.imgur.com/a39qB.png
在TipDetailBtnPressed和TipDetailPDFBtnPressed中，我有一个函数：
showSubViewInContainerView(view: "TipDetailsView", parm: 0)在parm中-我需要插入从collectionView项目中点击的记录(项目)的ID。我该怎么做呢？
回答 2
Stack Overflow用户
发布于 2018-06-04 16:25:55
在didselect的帮助下，我们可以找到所选的数据和两个要保存在类级别的变量
var lastTipId: Int!
var lastLeafId: Int!
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
if collectionView == collectionView1 {
lastTipId = tipObjectArray[indexPath.item].id
print(lastTipId)
}
else {
lastLeafId = leafletsObjectArray[indexPath.item].id
print(lastLeafId)
}
}Stack Overflow用户
发布于 2018-06-04 16:28:28
var lastTipId: Int?
var lastLeafId: Int?//
func collectionView(_ collectionView: UICollectionView,
didSelectItemAt indexPath: IndexPath) {
if collectionView == collectionView1 {
lastTipId = tipObjectArray[indexPath.row].id
}
else {
lastLeafId = leafletsObjectArray[indexPath.row].id
}
}//在为function参数设置var之前
if selectedTipId == nil {
// Alert the user to select a tip
return
}
showSubViewInContainerView(view: "TipDetailsView", parm: selectedTipId!)在其他按钮单击中也是如此
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/50676085
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