在 Swift 的 switch / case 函数中使用数组
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【中文标题】在 Swift 的 switch / case 函数中使用数组【英文标题】：Using an array within a switch / case function in Swift 【发布时间】：2016-07-03 08:57:51 【问题描述】：我正在尝试向我现有的应用程序添加一个选择器视图。然而，我遇到了一个障碍。我还是 Swift 的新手，我不知道如何描述这一点，但希望你能充分理解以下内容，以便提出适当的问题来解决这个问题。
我收到的错误消息是“致命错误：索引超出范围”：
cell.txtField_PickData.text = self.arrayTemprature[indexPath.row].valueForKey("tempValue") as? String
myTitleArry 等于两个输入“气温”或“水温”
这是围绕此错误的代码部分。如果需要更多代码来帮助识别问题，很乐意提供：
import UIKit
class DiveDetailsViewController: UITableViewController, LocationDelegate, ItemDataSelectedProtocol, UITextFieldDelegate , UIPickerViewDataSource , UIPickerViewDelegate
let numberOfComponents: Int = 2
let temperatureComponentRows: Int = 131
let temperatureSymbolComponentRows: Int = 2
let Fahrenheit: String = "F"
let Celsius: String = "C"
let minDegrees = -10
let maxDegrees = 120
private var degrees = [Int]()
var temperature: Int = 26 // our default temperature
var temperatureType: String = "C" // our default type is Farenheit
// let myTitleArray = ["Air temperature" , "Water temperature"]
var pickerView : UIPickerView!
var pickerViewFarCel : UIPickerView!
var dictTemprature = [String : String]()
var arrayTemprature = [AnyObject]()
var tempIndex = 0
var tempSymbolIndex = 0
var arraySymbol = ["C" , "F"]
var tempratureOfAir : String = ""
var tempratureOfWater : String = ""
private typealias ItemDefaults = [ItemTypes : String]
private let NumberOfSections: Int = 7
private let NumberOfRowsInSection0: Int = 2
private let NumberOfRowsInSection1: Int = 7
private let NumberOfRowsInSection2: Int = 4
private let NumberOfRowsInSection3: Int = 6
private let NumberOfRowsInSection4: Int = 3
private let NumberOfRowsInSection5: Int = 4
private let NumberOfRowsInSection6: Int = 1
//
// Section 0 Cells
//
private let DiveNumberIndex: NSIndexPath = NSIndexPath(forRow: 0, inSection: 0)
private let DiveNameIndex: NSIndexPath = NSIndexPath(forRow: 1, inSection: 0)
// Section 1 Cells
private let DiveWaterIndex: NSIndexPath = NSIndexPath(forRow: 0, inSection: 1)
private let DiveVisibilityIndex: NSIndexPath = NSIndexPath(forRow: 1, inSection: 1)
private let DiveCurrentsIndex: NSIndexPath = NSIndexPath(forRow: 2, inSection: 1)
private let AirTempPickerIndex: NSIndexPath = NSIndexPath(forRow: 3, inSection: 1)
private let WaterTempPickerIndex: NSIndexPath = NSIndexPath(forRow: 4, inSection: 1)
private let DiveWeatherIndex: NSIndexPath = NSIndexPath(forRow: 5, inSection: 1)
private let DiveSurfaceIndex: NSIndexPath = NSIndexPath(forRow: 6, inSection: 1)
// Section 2 Cells
private let DiveLocationIndex: NSIndexPath = NSIndexPath(forRow: 0, inSection: 2)
private let DiveBodyOfWaterIndex: NSIndexPath = NSIndexPath(forRow: 1, inSection: 2)
private let DiveCityIndex: NSIndexPath = NSIndexPath(forRow: 2, inSection: 2)
private let DiveCountryIndex: NSIndexPath = NSIndexPath(forRow: 3, inSection: 2)
// Section 3 Cells
private let DiveCircuitIndex: NSIndexPath = NSIndexPath(forRow: 0, inSection: 3)
private let DiveStartingPressureIndex: NSIndexPath = NSIndexPath(forRow: 1, inSection: 3)
private let DiveEndingPressureIndex: NSIndexPath = NSIndexPath(forRow: 2, inSection: 3)
private let DiveWeightIndex: NSIndexPath = NSIndexPath(forRow: 3, inSection: 3)
private let DiveDiveSuitIndex: NSIndexPath = NSIndexPath(forRow: 4, inSection: 3)
private let DiveEquipmentIndex: NSIndexPath = NSIndexPath(forRow: 5, inSection: 3)
// Section 4 Cells
private let DiveEntryTypeIndex: NSIndexPath = NSIndexPath(forRow: 0, inSection: 4)
private let DiveDiveTypeIndex: NSIndexPath = NSIndexPath(forRow: 1, inSection: 4)
private let DiveRatingIndex: NSIndexPath = NSIndexPath(forRow: 2, inSection: 4)
// Section 5 Cells
private let DiveDiveMasterIndex: NSIndexPath = NSIndexPath(forRow: 0, inSection: 5)
private let DiveDiveBoatOperatorIndex: NSIndexPath = NSIndexPath(forRow: 1, inSection: 5)
private let DiveDiveCenterIndex: NSIndexPath = NSIndexPath(forRow: 2, inSection: 5)
private let DiveTripOperatorIndex: NSIndexPath = NSIndexPath(forRow: 3, inSection: 5)
// Section 6 Cells
private let DiveNotesIndex: NSIndexPath = NSIndexPath(forRow: 0, inSection: 6)
private let location: Location = Location()
private var isSelected: Bool = false
private var defaultValues: ItemDefaults = ItemDefaults()
private var selectedItemType: ItemTypes = ItemTypes.None
private var longitude: Double = 0.0
private var latitude: Double = 0.0
var diveModel: DiveModel = DiveModel()
override func viewDidLoad()
super.viewDidLoad()
// Array of the Degree :
for i in self.minDegrees ..< self.maxDegrees+1
self.degrees.append(i)
print(self.degrees)
// Array of Table
self.dictTemprature = ["tempValue" : "" , "tempSymbol" : ""]
arrayTemprature = [self.dictTemprature , self.dictTemprature]
print(arrayTemprature)
print(self.arrayTemprature[0].valueForKey("tempValue"))
//
self.registerCustomTableViewCells()
self.defaultValues = self.getDefaultValues()
print(self.diveModel)
override func viewWillAppear(animated: Bool)
super.viewWillAppear(animated)
location.delegate = self
location.start()
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
var cell: UITableViewCell!
switch indexPath
case DiveNumberIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveNumberCell)
(cell as! DiveNumberTableViewCell).textField.placeholder = Strings.DiveNumber.localized
//I realize this will be autoentered, but needs to be displayed
case DiveNameIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveSiteCell)
(cell as! DiveSiteTableViewCell).textField.placeholder = Strings.Name.localized
//This will need to be the data entered from the previous screen and not editable
case AirTempPickerIndex:
let cell : AirTemperatureTableViewCell = tableView.dequeueReusableCellWithIdentifier("AirTemperatureCell", forIndexPath: indexPath) as! AirTemperatureTableViewCell
cell.txtField_PickData.tag = indexPath.row
cell.textField_TempSymbol.tag = indexPath.row
cell.txtField_PickData.placeholder = "Air"
cell.textField_TempSymbol.placeholder = ""
cell.txtField_PickData.text = self.arrayTemprature[indexPath.row].valueForKey("tempValue") as? String
cell.textField_TempSymbol.text = self.arrayTemprature[indexPath.row].valueForKey("tempSymbol") as? String
return cell
case WaterTempPickerIndex:
let cell : WaterTemperatureTableViewCell = tableView.dequeueReusableCellWithIdentifier("WaterTemperatureCell", forIndexPath: indexPath) as! WaterTemperatureTableViewCell
cell.txtField_PickData.tag = indexPath.row
cell.textField_TempSymbol.tag = indexPath.row
cell.txtField_PickData.placeholder = "Water"
cell.textField_TempSymbol.placeholder = ""
cell.txtField_PickData.text = self.arrayTemprature[indexPath.row].valueForKey("tempValue") as? String
cell.textField_TempSymbol.text = self.arrayTemprature[indexPath.row].valueForKey("tempSymbol") as? String
return cell
case DiveLocationIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.LocationCell)
cell.textLabel!.text = Strings.Location.localized
cell.detailTextLabel!.text = String(format: "%f, %f", self.latitude, self.longitude)
case DiveWeatherIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.Weather.localized
cell.detailTextLabel!.text = self.defaultValues[ItemTypes.Weather]
case DiveVisibilityIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.Visibility.localized
cell.detailTextLabel!.text = self.defaultValues[ItemTypes.Visibility]
case DiveEntryTypeIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.EntryType.localized
cell.detailTextLabel!.text = self.defaultValues[ItemTypes.EntryType]
case DiveWaterIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.Water.localized
cell.detailTextLabel!.text = self.defaultValues[ItemTypes.Water]
case DiveDiveSuitIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.DiveSuit.localized
cell.detailTextLabel!.text = self.defaultValues[ItemTypes.DiveSuit]
case DiveNotesIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveNoteCell)
case DiveRatingIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.Rating.localized
cell.detailTextLabel!.text = ""
case DiveCurrentsIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.Currents.localized
cell.detailTextLabel!.text = self.defaultValues[ItemTypes.Currents]
case DiveSurfaceIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.Surface.localized
cell.detailTextLabel!.text = self.defaultValues[ItemTypes.Surface]
case DiveBodyOfWaterIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.BodyOfWater.localized
cell.detailTextLabel!.text = ""
case DiveCityIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.City.localized
cell.detailTextLabel!.text = ""
case DiveCountryIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.Country.localized
cell.detailTextLabel!.text = ""
case DiveCircuitIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.Circuit.localized
cell.detailTextLabel!.text = self.defaultValues[ItemTypes.Circuit]
case DiveStartingPressureIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.StartingTankUsageCell)
(cell as! StartingTankUsageCell).startingPressureTextField.placeholder = Strings.Start.localized
case DiveEndingPressureIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.EndingTankUsageCell)
(cell as! EndingTankUsageCell).textField.placeholder = Strings.Finish.localized
case DiveDiveMasterIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.DiveMaster.localized
cell.detailTextLabel!.text = ""
case DiveWeightIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.WeightsCell)
(cell as! WeightsTableViewCell).textField.placeholder = Strings.Weight.localized
case DiveEquipmentIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.Equipment.localized
cell.detailTextLabel!.text = ""
case DiveDiveTypeIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.DiveType.localized
cell.detailTextLabel!.text = self.defaultValues[ItemTypes.DiveType]
case DiveDiveBoatOperatorIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.BoatOperator.localized
cell.detailTextLabel!.text = ""
case DiveDiveCenterIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.DiveCenter.localized
cell.detailTextLabel!.text = ""
case DiveTripOperatorIndex:
cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveItemCell)
cell.textLabel!.text = Strings.TripOperator.localized
cell.detailTextLabel!.text = ""
default:
cell = nil
return cell
override func numberOfSectionsInTableView(tableView: UITableView) -> Int
return self.NumberOfSections
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
if section == 0
return self.NumberOfRowsInSection0
else if section == 1
return self.NumberOfRowsInSection1
else if section == 2
return self.NumberOfRowsInSection2
else if section == 3
return self.NumberOfRowsInSection3
else if section == 4
return self.NumberOfRowsInSection4
else if section == 5
return self.NumberOfRowsInSection5
else if section == 6
return self.NumberOfRowsInSection6
else
return 0
override func tableView(tableView: UITableView, willSelectRowAtIndexPath indexPath: NSIndexPath) -> NSIndexPath?
//
// It the row that is going to be selected is of an item type, then we save off the
// selectedItemType so it can be used during the segue.
//
switch indexPath
case DiveWeatherIndex:
self.selectedItemType = ItemTypes.Weather
case DiveVisibilityIndex:
self.selectedItemType = ItemTypes.Visibility
case DiveEntryTypeIndex:
self.selectedItemType = ItemTypes.EntryType
case DiveWaterIndex:
self.selectedItemType = ItemTypes.Water
case DiveDiveSuitIndex:
self.selectedItemType = ItemTypes.DiveSuit
case DiveDiveTypeIndex:
self.selectedItemType = ItemTypes.DiveType
case DiveCurrentsIndex:
self.selectedItemType = ItemTypes.Currents
case DiveSurfaceIndex:
self.selectedItemType = ItemTypes.Surface
case DiveCircuitIndex:
self.selectedItemType = ItemTypes.Circuit
default:
self.selectedItemType = ItemTypes.None
return indexPath
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath)
let cell = tableView.cellForRowAtIndexPath(indexPath)
if cell is DiveEditTableViewCell
(cell as! DiveEditTableViewCell).textField.userInteractionEnabled = true
(cell as! DiveEditTableViewCell).textField.becomeFirstResponder()
else if cell is DiveNoteTableViewCell
(cell as! DiveNoteTableViewCell).textView.userInteractionEnabled = true
(cell as! DiveNoteTableViewCell).textView.becomeFirstResponder()
else if cell is StartingTankUsageCell
(cell as! StartingTankUsageCell).startingPressureTextField.userInteractionEnabled = true
(cell as! StartingTankUsageCell).startingPressureTextField.becomeFirstResponder()
else if cell is EndingTankUsageCell
(cell as! EndingTankUsageCell).textField.userInteractionEnabled = true
(cell as! EndingTankUsageCell).textField.becomeFirstResponder()
else if cell is WeightsTableViewCell
(cell as! WeightsTableViewCell).textField.userInteractionEnabled = true
(cell as! WeightsTableViewCell).textField.becomeFirstResponder()
override func tableView(tableView: UITableView, didDeselectRowAtIndexPath indexPath: NSIndexPath)
let cell = tableView.cellForRowAtIndexPath(indexPath)
if cell is DiveEditTableViewCell
(cell as! DiveEditTableViewCell).textField.userInteractionEnabled = false
(cell as! DiveEditTableViewCell).textField.resignFirstResponder()
else if cell is DiveNoteTableViewCell
(cell as! DiveNoteTableViewCell).textView.userInteractionEnabled = false
(cell as! DiveNoteTableViewCell).textView.resignFirstResponder()
else if cell is StartingTankUsageCell
(cell as! StartingTankUsageCell).startingPressureTextField.userInteractionEnabled = false
(cell as! StartingTankUsageCell).startingPressureTextField.becomeFirstResponder()
else if cell is EndingTankUsageCell
(cell as! EndingTankUsageCell).textField.userInteractionEnabled = false
(cell as! EndingTankUsageCell).textField.becomeFirstResponder()
else if cell is WeightsTableViewCell
(cell as! WeightsTableViewCell).textField.userInteractionEnabled = false
(cell as! WeightsTableViewCell).textField.becomeFirstResponder()
override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat
var height = tableView.rowHeight
if indexPath == self.DiveNotesIndex
let cell = tableView.dequeueReusableCellWithIdentifier(Resource.DiveNoteCell)
height = CGFloat((cell?.bounds.size.height)!)
return height
func fahToCel(tempInF:Double) ->Double
let celsius = (tempInF - 32.0) * (5.0/9.0)
return celsius as Double
func celToFah(tempInC:Double) ->Double
let fahrenheit = (tempInC * 9.0/5.0) + 32.0
return fahrenheit as Double
func pickerFarCal(textField : UITextField)
self.tempSymbolIndex = 0
pickerViewFarCel = UIPickerView(frame:CGRectMake(0, 0, self.view.frame.size.width, 216))
pickerViewFarCel.delegate = self
pickerViewFarCel.dataSource = self
pickerViewFarCel.backgroundColor = UIColor.whiteColor()
textField.inputView = pickerViewFarCel
pickerViewFarCel.tag = textField.tag
let toolBar = UIToolbar()
toolBar.barStyle = .Default
toolBar.translucent = true
toolBar.tintColor = UIColor(red: 92/255, green: 216/255, blue: 255/255, alpha: 1)
toolBar.sizeToFit()
// Adds the buttons
let doneButton = UIBarButtonItem(title: "Done", style: .Plain, target: self, action: #selector(DiveDetailsViewController.doneClickSymbol))
let spaceButton = UIBarButtonItem(barButtonSystemItem: .FlexibleSpace, target: nil, action: nil)
let cancelButton = UIBarButtonItem(title: "Cancel", style: .Plain, target: self, action: #selector(DiveDetailsViewController.cancelClickSymbol))
toolBar.setItems([cancelButton, spaceButton, doneButton], animated: false)
toolBar.userInteractionEnabled = true
textField.inputAccessoryView = toolBar
func doneClickSymbol()
self.view.endEditing(true)
print(self.arraySymbol[tempSymbolIndex])
if self.arrayTemprature[pickerViewFarCel.tag].valueForKey("tempValue") as! String == ""
print("Not Convert")
else if self.arrayTemprature[pickerViewFarCel.tag].valueForKey("tempSymbol") as! String == self.arraySymbol[tempSymbolIndex]
print("Not Convert")
else
print("Convert")
if self.arraySymbol[tempSymbolIndex] == "C"
let value = Double(self.arrayTemprature[pickerViewFarCel.tag].valueForKey("tempValue") as! String)
let convertedValue = self.fahToCel(value!)
let myValue = String(format: "%.1f", convertedValue)
self.dictTemprature["tempValue"] = myValue
self.dictTemprature["tempSymbol"] = self.arraySymbol[tempSymbolIndex]
else
let value = Double(self.arrayTemprature[pickerViewFarCel.tag].valueForKey("tempValue") as! String)
let convertedValue = self.celToFah(value!)
let myValue = String(format: "%.1f", convertedValue)
self.dictTemprature["tempValue"] = myValue
self.dictTemprature["tempSymbol"] = self.arraySymbol[tempSymbolIndex]
self.arrayTemprature[pickerViewFarCel.tag] = self.dictTemprature
tableView.reloadData()
func cancelClickSymbol()
self.view.endEditing(true)
// PickerView
func pickerViewTemprature(textField : UITextField)
// Index
self.tempSymbolIndex = 0
self.tempIndex = 276
pickerView = UIPickerView(frame:CGRectMake(0, 0, self.view.frame.size.width, 216))
pickerView.delegate = self
pickerView.dataSource = self
pickerView.backgroundColor = UIColor.whiteColor()
textField.inputView = pickerView
pickerView.tag = textField.tag
pickerView.selectRow(276, inComponent: 0, animated: true)
let toolBar = UIToolbar()
toolBar.barStyle = .Default
toolBar.translucent = true
toolBar.tintColor = UIColor(red: 92/255, green: 216/255, blue: 255/255, alpha: 1)
toolBar.sizeToFit()
// Adds the buttons
let doneButton = UIBarButtonItem(title: "Done", style: .Plain, target: self, action: #selector(DiveDetailsViewController.doneClickMaterial))
let spaceButton = UIBarButtonItem(barButtonSystemItem: .FlexibleSpace, target: nil, action: nil)
let cancelButton = UIBarButtonItem(title: "Cancel", style: .Plain, target: self, action: #selector(DiveDetailsViewController.cancelClickMaterial))
toolBar.setItems([cancelButton, spaceButton, doneButton], animated: false)
toolBar.userInteractionEnabled = true
textField.inputAccessoryView = toolBar
func doneClickMaterial()
self.view.endEditing(true)
self.dictTemprature["tempValue"] = "\(self.degrees[tempIndex])"
self.dictTemprature["tempSymbol"] = self.arraySymbol[tempSymbolIndex]
self.arrayTemprature[pickerView.tag] = self.dictTemprature
self.tableView.reloadData()
func cancelClickMaterial()
self.view.endEditing(true)
// MARK: delegate
func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int
if (pickerViewFarCel != nil)
return 1
else
return 2
func pickerView(pickerView: UIPickerView, widthForComponent component: Int) -> CGFloat
return 100
func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int
if (pickerViewFarCel != nil)
return self.temperatureSymbolComponentRows
else
if component == 0
return self.degrees.count
else
return self.temperatureSymbolComponentRows
func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String?
if (pickerViewFarCel != nil)
return self.arraySymbol[row]
else
if component == 0
return "\(self.degrees[row])"
else
return self.arraySymbol[row]
func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int)
if (pickerViewFarCel != nil)
tempSymbolIndex = row
else
if component == 0
tempIndex = row
else
tempSymbolIndex = row
更新： 我删除了标题数组并简单地添加了另一个动态单元格并将驱动两者的数据分开。
标题的索引超出范围会消失，但现在会为该行创建相同的错误： cell.txtField_PickData.text = self.arrayTemprature[indexPath.row].valueForKey("tempValue") as?字符串
此功能不需要额外的行，所以现在我想知道错误是否在于数组收集数据的方式。
我已经添加了大部分代码。必须减少一些才能达到 30k 的限制。
【问题讨论】：
问题只是myTitleArray 没有与indexPath.row 值关联的项目。所以看看行号是多少，然后看看你在那个数组中有多少项。如果该数组只有两项，则行号只能是零或一（无论如何，考虑到该行当前的写入方式）。
再次，为了诊断，您必须分享 (a) indexPath.row 的值是什么； (b) arrayTemprature [原文如此] 包含的内容。 row 似乎超出了该数组中的项目数。
【参考方案1】：
您的问题是由错误的numberOfRowsInSection 实现引起的。
根据official documentation：
告诉数据源返回给定节中的行数 表格视图。
注意此方法并进行所需的所有更改，以使您的数据源发生所有可能的变化。
这里你可以看到一个例子：
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
if let count = self. myTitleArray?.count as Int
return (count)
else
//myTitleArray is nil, so just return 0
return 0
更新：（在您对主要问题进行新的编辑之后）
似乎有一个错误： 第 1 节单元格有 6 个元素，但您已声明：
private let NumberOfRowsInSection1: Int = 5
更多详情关于您的问题：
您的问题很典型：“索引超出范围”，这是什么意思？您的数组，在这种情况下 self.arrayTemprature 没有语句期间所需的索引，例如，如果您有一个包含 3 个元素的数组并且您请求第 4 个元素，这就是您将看到的错误。但是，当您不初始化数组并假装请求不存在的元素（您的数组为 nil 并且您始终希望第 4 个元素：索引超出范围）时，也会发生此错误。因此，请从声明、初始化、使用断点开始检查您的 self.arrayTemprature 并检查出现此错误的原因。
【讨论】：
亚历山德罗，现在我有以下内容。由于本节有 7 行，不知道如何实现上述内容。我目前有： else if section == 1 return self.NumberOfRowsInSection1 您能否在您的问题中添加 numberOfRowInSection 和 numberOfSections 方法？ 是的，我尝试了不同的数字。没有 tempPicker，有 5 行。我的想法（就在粘贴代码之前）是设置 5 并将 myTitleArray.count 添加到部分中的行数中。 原来的数字是6，我试过6+1； 5 + myTitleArray.count。 .仅供参考，我已将其分配给单个动态单元格 让我们continue this discussion in chat.以上是关于在 Swift 的 switch / case 函数中使用数组的主要内容，如果未能解决你的问题，请参考以下文章
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