ios 8.1：類型“ViewController”不符合協議“UICollectionViewDataSource”

Question

編譯 swift 應用程序（iOS 8.1）時出現以下錯誤

類型“ViewController”不符合協議“UICollectionViewDataSource”

在“class ViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate”行

我剛剛在這里查看了幾篇帖子，但沒有人幫我解決這個問題。

這是 ViewController.swift 文件的代碼：

import UIKit

class ViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {
var tableDescription: [String] = []
var tableNumbers: [String] = []

override func viewDidLoad() {
    super.viewDidLoad()
    self.populateView()
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

func collectionView(collectionView: UICollectionView, numberOfItemInSection section: Int) -> Int{
    return tableDescription.count
}

func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell{
    let cell: CollViewCell = collectionView.dequeueReusableCellWithReuseIdentifier("Cell", forIndexPath: indexPath) as CollViewCell
    
    cell.lblDescription.text = tableDescription[indexPath.row]
    cell.lblNumber.text = tableNumbers[indexPath.row]
    
    return cell
}

func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
    println("Cell \(indexPath.row) selected")
}
 }

Answer 1

檢查代碼中的拼寫錯誤，例如 - 使用“numberOfItemsInSection”而不是 numberOfItemInSection。