Ios xcode 7.0存在序列问题

我是Xcode的新手。 当我点击按钮导航table view应用程序刚挂起并将其导航到AppDelegate页面时， 这是我的密码

import UIKit

class ViewController: UIViewController {

let bookPicker = ["Book 1","Book 2","Book 3","Book 4" ]

@IBOutlet private weak var tableView: UITableView?

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

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

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell =
    tableView.dequeueReusableCellWithIdentifier("customcell") as UITableViewCell!

    if (indexPath.item % 2 == 0){
        cell.backgroundColor = UIColor.clearColor()
    }
    else{
        cell.backgroundColor = UIColor.whiteColor().colorWithAlphaComponent(0.2)
        cell.textLabel!.backgroundColor = UIColor.whiteColor().colorWithAlphaComponent(0.0)
    }
        cell.textLabel!.textColor = UIColor.whiteColor()
        cell.textLabel!.text = bookPicker[indexPath.item]

        return cell
    }
}

附加故事板图片

当我运行应用程序并点击按钮时，它会带我进入下一页

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您的numberOfRowsInSection:方法在哪里？您忘了添加numberOfRowsInSection方法您能解释一下怎么做吗？看一下这个谢谢我做了完全相同但仍然相同的任何其他建议请