手动将委托和数据源添加到 xib 文件的 UICollectionView

Question

我把UICollectionView放到了xib文件的UIView上。
在xib文件中安装（GUI）UICollectionView，连接IBOutlet

这样的话，delegate和dataSource应该怎么写呢？
（猜想：也许，我得自己手动写成代码）

此外，我们无法将 Cell 附加到 xib 中的 UICollectionView。
这是否意味着我不必放它？

Collection.swift

//Collection.swift

import UIKit

class Home: UIView, UICollectionViewDelegate, UICollectionViewDataSource{
    
    @IBOutlet weak var propCollectionView: UICollectionView!
    
    let photos = ["sierra"] //Already put to AssetsFolder
    
    //Just instance. plz do not care about this.
    class func instance() -> Home {
        return UINib(nibName: "Home", bundle: nil).instantiate(withOwner: self, options: nil)[0] as! Home
    }
    
    func initValue(){
        propCollectionView.register(UINib(nibName: "PropCell", bundle: nil), forCellWithReuseIdentifier: "PropCell")
    }
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return 1
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell        = propCollectionView.dequeueReusableCell(withReuseIdentifier: "PropCell", for: indexPath) as! PropCell
        let propImage   = cell.contentView.viewWithTag(1) as! UIImageView
        let img         = UIImage(named: photos[indexPath.row])
        propImage.image = img
        return cell
    }
}

PropCell.swift

//PropCell.swift
//yeah, nothing. plz don't care this too.

import UIKit

class PropCell: UICollectionViewCell {

    override func awakeFromNib() {
        super.awakeFromNib()

    }
    
}

CollectionSwift 的 Xib

PropCell 的 Xib

（如有不明白题意，欢迎评论。）

Answer 1

import UIKit

class Home: UIView, UICollectionViewDelegate, UICollectionViewDataSource{

    @IBOutlet weak var propCollectionView: UICollectionView!

    let photos = ["sierra"] //Already put to AssetsFolder

    //Just instance. plz do not care about this.
    class func instance() -> Home {
        return UINib(nibName: "Home", bundle: nil).instantiate(withOwner: self, options: nil)[0] as! Home
    }
    func configureView() {
        propCollectionView.delagate = self
        propCollectionView.dataSource = self
    }

    func initValue(){
        propCollectionView.register(UINib(nibName: "PropCell", bundle: nil), forCellWithReuseIdentifier: "PropCell")
    }

    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return 1
    }

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell        = propCollectionView.dequeueReusableCell(withReuseIdentifier: "PropCell", for: indexPath) as! PropCell
        let propImage   = cell.contentView.viewWithTag(1) as! UIImageView
        let img         = UIImage(named: photos[indexPath.row])
        propImage.image = img
        return cell
    }
}

用途

let home = Home.instance()
home.configureView() //called configureView() with the home instance

手动将委托和数据源添加到 xib 文件的 UICollectionView

Manually add delegate & datasource to UICollectionView of xib file

xcode

ios

swift

swift4

xcode9