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ios - 需要帮助设置数据模型以显示 tableView

转载 作者:行者123 更新时间:2023-11-30 13:50:32 24 4
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我让我的 tableView 按应有的方式填充了一段时间,但后来对如何从 Parse 获取数据进行了一些调整,从那时起我就无法让我的 tableView 显示而不崩溃 fatal error :数组索引超出范围这是我的代码:

class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
var vaccineEntry: Array<Array<Dictionary<String,String>>> = [[
["name" : "Rabies 1-yr", "detail": "None"],
["name" : "Rabies 3-yr", "detail": "None"],
["name" : "Distemper", "detail": "None"],
["name" : "Parvovirus", "detail": "None"],
["name" : "Adenovirus", "detail": "None"]],
[
["name" : "Parainfluenza", "detail": "None"],
["name" : "Bordetella", "detail": "None"],
["name" : "Lyme Disease", "detail": "None"],
["name" : "Leptospirosis", "detail": "None"],
["name" : "Canine Influenza", "detail": "None"]
]]

var sections = ["Core Vaccines", "Non-Core Vaccines"]
var titles = [["Rabies 1-yr", "Rabies 3-yr", "Distemper", "Parvovirus", "Adenovirus"], ["Parainfluenza", "Bordetella", "Lyme Disease", "Leptospirosis", "Canine Influenza"]]


var textCellIdenifier = "vaccineCell"

// Section Headers
func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {

return self.sections[section]
}

func numberOfSectionsInTableView(tableView: UITableView) -> Int {

return self.sections.count

}


func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

return self.titles[section].count
}




func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

let cell = tableView.dequeueReusableCellWithIdentifier(textCellIdenifier, forIndexPath: indexPath) as UITableViewCell

let object = vaccineEntry[indexPath.section][indexPath.row]

cell.textLabel?.text = object["name"]
cell.detailTextLabel?.text = object["detail"]


return cell
}
}

此行因 fatal error 而崩溃:

let object = vaccineEntry[indexPath.section][indexPath.row]

或者我不能创建一个对象变量,然后就可以了:

cell.textLabel?.text = vaccineEntry[indexPath.section][indexPath.row]["name"]
cell.textLabel?.text = vaccineEntry[indexPath.section][indexPath.row]["detail"]

但是同样的交易,只是在 ["name"] 行崩溃。我究竟做错了什么?非常感谢任何帮助!

最佳答案

对我来说工作得很好,没有任何错误或警告!PFB代码:

import UIKit

class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {

@IBOutlet weak var tableView: UITableView!

var vaccineEntry: Array<Array<Dictionary<String,String>>> = [[
["name" : "Rabies 1-yr", "detail": "None"],
["name" : "Rabies 3-yr", "detail": "None"],
["name" : "Distemper", "detail": "None"],
["name" : "Parvovirus", "detail": "None"],
["name" : "Adenovirus", "detail": "None"]],
[
["name" : "Parainfluenza", "detail": "None"],
["name" : "Bordetella", "detail": "None"],
["name" : "Lyme Disease", "detail": "None"],
["name" : "Leptospirosis", "detail": "None"],
["name" : "Canine Influenza", "detail": "None"]
]]

var sections = ["Core Vaccines", "Non-Core Vaccines"]
var titles = [["Rabies 1-yr", "Rabies 3-yr", "Distemper", "Parvovirus", "Adenovirus"], ["Parainfluenza", "Bordetella", "Lyme Disease", "Leptospirosis", "Canine Influenza"]]


var textCellIdenifier = "vaccineCell"

override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
self.tableView.delegate = self;
self.tableView.dataSource = self;
self.tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: self.textCellIdenifier)
}

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

func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return self.sections[section]
}

func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return self.sections.count
}


func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.titles[section].count
}

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

let cell = tableView.dequeueReusableCellWithIdentifier(textCellIdenifier, forIndexPath: indexPath) as UITableViewCell

let object = vaccineEntry[indexPath.section][indexPath.row]

cell.textLabel?.text = object["name"]
cell.detailTextLabel?.text = object["detail"]

return cell
}

}

模拟器上运行的代码:

your view

关于ios - 需要帮助设置数据模型以显示 tableView,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34343327/

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