Swift UITableViewController numberOfSections索引1超出边界[0 .. 0]使用静态单元格

时间:2017-03-18 13:59:40

标签: swift uitableview tableview nsrangeexception

我有一个UITableViewController,每个部分有一个静态的5个部分和2行,但是最后一个部分有1行。

我在故事板中创建了表格,并通过故事板设置了部分和行数。在协议功能中,我还设置了正确的行数和部分数:

override func numberOfSections(in tableView: UITableView) -> Int {
    return 5
}

override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    if (section == 4) {
        return 1
    } else {
        return 2
    }
}

然而,我收到此错误:

'NSRangeException', reason: '*** -[__NSSingleObjectArrayI objectAtIndex:]: index 1 beyond bounds [0 .. 0]'

我认为这个错误与numberOfSections函数有关,因为如果我将它从5更改为0,它运行正常。当我在故事板中将其定义为5时,我不明白这些部分的数组如何为零。是否有一个我没有看到的简单解决方案?

我也链接了委托源,我的数据源不是任何类型的数组,因为整个表是在故事板中创建的,并且包含标签等。

修改

整个视图控制器的代码:

import UIKit

class RideSummaryTableViewController: UITableViewController {

@IBOutlet var nameLabel: UILabel!
@IBOutlet var ratingLabel: UILabel!
@IBOutlet var originStreetLabel: UILabel!
@IBOutlet var originCityLabel: UILabel!
@IBOutlet var destStreetLabel: UILabel!
@IBOutlet var destCityLabel: UILabel!
@IBOutlet var rateLabel: UILabel!
@IBOutlet var paymentButton: UIButton!

var paymentText = "Request Payment"

override func viewDidLoad() {
    super.viewDidLoad()

    self.navigationController?.navigationBar.setBackgroundImage(UIImage(), for: .default)
    self.navigationController?.navigationBar.shadowImage = UIImage()
    self.navigationController?.navigationBar.isTranslucent = true

    self.paymentButton.setTitle(paymentText, for: .normal)

    // Uncomment the following line to preserve selection between presentations
    // self.clearsSelectionOnViewWillAppear = false

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
    // self.navigationItem.rightBarButtonItem = self.editButtonItem()
}

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

// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
    return 5
}

override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    if (section == 4) {
        return 1
    } else {
        return 2
    }
}

/*
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "reuseIdentifier", for: indexPath)

    // Configure the cell...

    return cell
}
*/

/*
// Override to support conditional editing of the table view.
override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
    // Return false if you do not want the specified item to be editable.
    return true
}
*/

/*
// Override to support editing the table view.
override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
    if editingStyle == .delete {
        // Delete the row from the data source
        tableView.deleteRows(at: [indexPath], with: .fade)
    } else if editingStyle == .insert {
        // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
    }    
}
*/

/*
// Override to support rearranging the table view.
override func tableView(_ tableView: UITableView, moveRowAt fromIndexPath: IndexPath, to: IndexPath) {

}
*/

/*
// Override to support conditional rearranging of the table view.
override func tableView(_ tableView: UITableView, canMoveRowAt indexPath: IndexPath) -> Bool {
    // Return false if you do not want the item to be re-orderable.
    return true
}
*/

/*
// MARK: - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    // Get the new view controller using segue.destinationViewController.
    // Pass the selected object to the new view controller.
}
*/

}

1 个答案:

答案 0 :(得分:0)

我遇到了同样的问题,我花了一些时间才发现错误。

我的错误是故事板上还有一个单元格。在我删除了单元格和相应的部分/组之后,它应该如何工作。