Question

我有一个非常奇怪的问题，重新渲染NSTableView时的单元格似乎会随机着色并显示文本。这是 MacOS 而不是iPhone。

我在变量数据中使用字典将结果显示在表格中。

最简单的展示它应该如何......

当我再次运行模拟并删除所有表格列并重新创建它们以匹配“年”而不是数月时，它看起来就像这样。

这是一个非常奇怪的错误。我不确定我做错了什么可能导致这种情况，但我怀疑我正在做的事情存在内存问题。

这是我的控制器代码。

import Cocoa

class ViewController: NSViewController, NSTableViewDelegate, NSTableViewDataSource {

    //@JA - Simulation Settings Tab
    @IBOutlet weak var theTableview: NSTableView!
    @IBOutlet weak var reportTypePopUpButton: NSPopUpButton!
    @IBOutlet weak var businessPopUpButton: NSPopUpButton!
    @IBOutlet weak var numberOfDaysToSimulateTextField: NSTextField!
    @IBOutlet weak var startDateTextField: NSTextField!
    @IBOutlet weak var startingBudgetTextField: NSTextField!

    //Default Multidimensional Dictionary
    var data = [
        [
            "name":"Click Start to Begin",
            "columninfo" :["0"]
        ]
    ]

    override func viewDidLoad() {
        super.viewDidLoad()

        //First remove all columns
        let columns = self.theTableview.tableColumns
        columns.forEach {
            self.theTableview.removeTableColumn($0)
        }

        //@JA - This fixes the last column not being shown correctly
        self.theTableview?.columnAutoresizingStyle = .noColumnAutoresizing

        for index in 0...1 {
            let column = NSTableColumn(identifier: "defaultheader")
            if(index != 0){
                column.title = "Month \(index)"
            }else{
                column.title = "Factors"
            }

            self.theTableview.addTableColumn(column)
        }


        let date = NSDate()
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd"
        let dateString = dateFormatter.string(from:date as Date)

        startDateTextField.stringValue = dateString

        // Do any additional setup after loading the view.

        self.theTableview.reloadData()
    }

    override var representedObject: Any? {
        didSet {
        // Update the view, if already loaded.
        }
    }

    //@JA - Tableview Delegate & Datasource Functions
    func numberOfRows(in tableView: NSTableView) -> Int {
        return data.count
    }

    func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? {

        let currentColumnIndex = tableView.tableColumns.index(of: tableColumn!)

        if let cell = tableView.make(withIdentifier: "defaultcell", owner: nil) as? NSTableCellView {
        //if let cell = tableView.reuse {
            if tableColumn == tableView.tableColumns[0]{ //@JA - If this is the first column then show the row names corespondingly
                cell.textField?.stringValue = data[row]["name"] as! String
            }else{
                let columnInfo = data[row]["columninfo"] as! [String]

                let isIndexValid = columnInfo.indices.contains(currentColumnIndex!-1)
                if(isIndexValid){
                    cell.textField?.stringValue = columnInfo[currentColumnIndex!-1]
                }
            }

            //Highlight Rows with rule to do so
            if data[row]["highlightrow"] != nil{
                let bghighlight = data[row]["highlightrow"] as! [String:NSNumber]
                cell.textField?.backgroundColor = NSColor.init(red: CGFloat(bghighlight["red"]!), green: CGFloat(bghighlight["green"]!), blue: CGFloat(bghighlight["blue"]!), alpha: CGFloat(bghighlight["alpha"]!))
                cell.textField?.textColor = NSColor.init(red: CGFloat(bghighlight["tred"]!), green: CGFloat(bghighlight["tgreen"]!), blue: CGFloat(bghighlight["tblue"]!), alpha: CGFloat(bghighlight["talpha"]!))
            }

            //Marked rows will show ----- for content to fill it out
            if data[row]["mark"] != nil{
                if data[row]["mark"] as! Bool == true && currentColumnIndex != 0{
                    cell.textField?.stringValue = "---------------"
                }
            }

            return cell
        }
        return nil
    }

    //@JA - Helper Functions
    func calculateTableHeaders(){

        //First remove all columns
        let columns = self.theTableview.tableColumns
        columns.forEach {
            self.theTableview.removeTableColumn($0)
        }

        //Find out how many days we want to simulate
        let numOfDays = Int(numberOfDaysToSimulateTextField.intValue)
        let columnType = reportTypePopUpButton.titleOfSelectedItem

        //Generic Setting for Date
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd"

        let startDate = dateFormatter.date(from:startDateTextField.stringValue)
        var components = DateComponents()

        var numOfColumns = 150 //Default Column Setting.  Always overwritten

        print("columnType=\(columnType!)")

        if(columnType == "Daily"){
            numOfColumns = Int(numOfDays)
            components = DateComponents() //to reset it
        }
        if(columnType == "Monthly"){
            components.setValue(numOfDays, for: .day)
            let futureDate = Calendar.current.date(byAdding: components, to: startDate!)
            numOfColumns = futureDate!.interval(ofComponent: .month, fromDate: startDate!) //The number of months needed column wise
        }
        if(columnType == "Yearly"){
            components.setValue(numOfDays, for: .day)
            let futureDate = Calendar.current.date(byAdding: components, to: startDate!)
            numOfColumns = futureDate!.interval(ofComponent: .year, fromDate: startDate!) //The number of months needed column wise
        }

        dateFormatter.dateFormat = "dd MMM yyyy" //this is format we want to use for column names
        for index in 0...numOfColumns {
            let column = NSTableColumn(identifier: "defaultheader")
            if(index != 0){
                components = DateComponents() //reset it
                if(columnType == "Daily"){
                    components.setValue(index, for: .day)
                }else if(columnType == "Monthly"){
                    components.setValue(index, for: .month)
                }else if(columnType == "Yearly"){
                    components.setValue(index, for: .year)
                }
                let dayDate = Calendar.current.date(byAdding: components, to: startDate!)
                column.title = dateFormatter.string(from:dayDate!)
            }else{
                column.title = "Factors"
                column.width = 200
            }

            self.theTableview.addTableColumn(column)
        }

    }

    @IBAction func startsimulation(_ sender: NSButton) {
        calculateTableHeaders()
        let budget = startingBudgetTextField.doubleValue
        let businessname = businessPopUpButton.titleOfSelectedItem!

        var biz:Business?

        if ( businessname == "PoolService123.com"){
            biz = PoolService123(bizname: businessname, startbudget:Decimal(budget))
        }

        let sim = Simulator(biz: biz!)

        data = []
        data = sim.run() as! [Dictionary<String, Any>]


        theTableview.reloadData()
    }

}

extension Date {

    func interval(ofComponent comp: Calendar.Component, fromDate date: Date) -> Int {

        let currentCalendar = Calendar.current

        guard let start = currentCalendar.ordinality(of: comp, in: .era, for: date) else { return 0 }
        guard let end = currentCalendar.ordinality(of: comp, in: .era, for: self) else { return 0 }

        return end - start
    }
}

相关类依赖于我们定义的类似：

Simulator.swift

import Foundation


class Simulator {

    var business: Business
    var daysToSimulate = 365

    //Must be initialized with a business
    init(biz: Business) {
        self.business = biz
    }

    public func run() -> Any{
        let data = self.business.data! //Grabs the default data structure from which to fill in details

        return data
    }
}

Business.swift

import Foundation

class Business {
    public var name: String = ""
    public var budget:Decimal = 0.0
    public var data: [Dictionary<String, Any>]?
    public var money:Decimal = 0.0 //This represents its current financial state

    init(bizname: String,startbudget: Decimal){
        self.name = bizname
        self.budget = startbudget
        self.money = startbudget
    }
}

PoolService123.swift

import Foundation

class PoolService123 : Business{
    override init(bizname: String, startbudget: Decimal) {
        //@JA - Call super to do generic business stuff that is the same
        super.init(bizname: bizname, startbudget: startbudget)

        self.data = [
            [
                "name":"Starting Budget",
                "columninfo" :["0"]
            ],
            [
                "name":"Regions Targeting",
                "columninfo" :["0"]
            ],
            [
                "name":"Marketing & Customers",
                "columninfo" :["-"],
                "highlightrow":["red":0.0,"green":0.0,"blue":0.0,"alpha":1.0,"tred":1.0,"tgreen":1.0,"tblue":1.0,"talpha":1.0],
                "mark":true
            ],
            [
                "name":"Adwords Clicks",
                "columninfo" :["0"]
            ],
            [
                "name":"Adwords Conversions",
                "columninfo" :["0"]
            ],
            [
                "name":"Adwords Customers Acquired",
                "columninfo" :["0"]
            ],
            [
                "name":"Customers Gained",
                "columninfo" :["0"]
            ],
            [
                "name":"Customers Lost",
                "columninfo" :["0"]
            ],
            [
                "name":"Total Customers",
                "columninfo" :["0"]
            ],
            [
                "name":"Expenses",
                "columninfo" :["-"],
                "highlightrow":["red":0.2,"green":0.0,"blue":0.0,"alpha":1.0,"tred":1.0,"tgreen":1.0,"tblue":1.0,"talpha":1.0],
                "mark":true
            ],
            [
                "name":"Adwords Cost",
                "columninfo" :["0"]
            ],
            [
                "name":"Total Expenses",
                "columninfo" :["0"]
            ],
            [
                "name":"Revenue",
                "columninfo" :["-"],
                "highlightrow":["red":0.0,"green":0.2,"blue":0.0,"alpha":1.0,"tred":1.0,"tgreen":1.0,"tblue":1.0,"talpha":1.0],
                "mark":true
            ],
            [
                "name":"Gross Income",
                "columninfo" :["0"]
            ],
            [
                "name":"Net Income",
                "columninfo" :["0"]
            ],
            [
                "name":"Net Worth",
                "columninfo" :["0"]
            ],
            [
                "name":"Business Partner Income",
                "columninfo" :["0"]
            ]
        ]
    }
}

我尝试过的事情：

当我重新模拟并保持几个月它似乎没关系并且没有出现任何问题时，这似乎只发生在我多年来切换到这样做时，这会减少整体列数。

此外，如果我继续点击模拟，而它会变得越来越糟。最终看起来像......

如果我每年开始并继续进行模拟，它可以正常工作。切换到每月，它工作正常！在做完这个之后切换回每年......并且它再次混乱。

显然，从年度模拟到月度模拟，我正在做的事情引发了一个问题。

我注意到的其他事情是我在进行测试时错误颜色和文本数据始终处于相同的位置。我在每个点都对数据字典做了一个断点，我没有看到任何损坏。

一些有趣的调试结果

所以我将此行添加到此函数func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? {

print("currentColumnIndex=\(currentColumnIndex ?? -1) , row=\(row)")

当我每年做一次非常奇怪的时候，我得到以下调试输出，不知何故它按顺序再次按顺序渲染列？

columnType=Yearly
currentColumnIndex=0 , row=0
currentColumnIndex=0 , row=1
currentColumnIndex=0 , row=2
currentColumnIndex=0 , row=3
currentColumnIndex=0 , row=4
currentColumnIndex=0 , row=5
currentColumnIndex=0 , row=6
currentColumnIndex=0 , row=7
currentColumnIndex=0 , row=8
currentColumnIndex=0 , row=9
currentColumnIndex=0 , row=10
currentColumnIndex=0 , row=11
currentColumnIndex=0 , row=12
currentColumnIndex=0 , row=13
currentColumnIndex=0 , row=14
currentColumnIndex=0 , row=15
currentColumnIndex=0 , row=16
currentColumnIndex=1 , row=0
currentColumnIndex=1 , row=1
currentColumnIndex=1 , row=2
currentColumnIndex=1 , row=3
currentColumnIndex=1 , row=4
currentColumnIndex=1 , row=5
currentColumnIndex=1 , row=6
currentColumnIndex=1 , row=7
currentColumnIndex=1 , row=8
currentColumnIndex=1 , row=9
currentColumnIndex=1 , row=10
currentColumnIndex=1 , row=11
currentColumnIndex=1 , row=12
currentColumnIndex=1 , row=13
currentColumnIndex=1 , row=14
currentColumnIndex=1 , row=15
currentColumnIndex=1 , row=16
currentColumnIndex=2 , row=0
currentColumnIndex=2 , row=1
currentColumnIndex=2 , row=2
currentColumnIndex=2 , row=3
currentColumnIndex=2 , row=4
currentColumnIndex=2 , row=5
currentColumnIndex=2 , row=6
currentColumnIndex=2 , row=7
currentColumnIndex=2 , row=8
currentColumnIndex=2 , row=9
currentColumnIndex=2 , row=10
currentColumnIndex=2 , row=11
currentColumnIndex=2 , row=12
currentColumnIndex=2 , row=13
currentColumnIndex=2 , row=14
currentColumnIndex=2 , row=15
currentColumnIndex=2 , row=16
currentColumnIndex=3 , row=0
currentColumnIndex=3 , row=1
currentColumnIndex=3 , row=2
currentColumnIndex=3 , row=3
currentColumnIndex=3 , row=4
currentColumnIndex=3 , row=5
currentColumnIndex=3 , row=6
currentColumnIndex=3 , row=7
currentColumnIndex=3 , row=8
currentColumnIndex=3 , row=9
currentColumnIndex=3 , row=10
currentColumnIndex=3 , row=11
currentColumnIndex=3 , row=12
currentColumnIndex=3 , row=13
currentColumnIndex=3 , row=14
currentColumnIndex=3 , row=15
currentColumnIndex=3 , row=16
currentColumnIndex=4 , row=0
currentColumnIndex=4 , row=1
currentColumnIndex=4 , row=2
currentColumnIndex=4 , row=3
currentColumnIndex=4 , row=4
currentColumnIndex=4 , row=5
currentColumnIndex=4 , row=6
currentColumnIndex=4 , row=7
currentColumnIndex=4 , row=8
currentColumnIndex=4 , row=9
currentColumnIndex=4 , row=10
currentColumnIndex=4 , row=11
currentColumnIndex=4 , row=12
currentColumnIndex=4 , row=13
currentColumnIndex=4 , row=14
currentColumnIndex=4 , row=15
currentColumnIndex=4 , row=16
currentColumnIndex=5 , row=0
currentColumnIndex=5 , row=1
currentColumnIndex=5 , row=2
currentColumnIndex=5 , row=3
currentColumnIndex=5 , row=4
currentColumnIndex=5 , row=5
currentColumnIndex=5 , row=6
currentColumnIndex=5 , row=7
currentColumnIndex=5 , row=8
currentColumnIndex=5 , row=9
currentColumnIndex=5 , row=10
currentColumnIndex=5 , row=11
currentColumnIndex=5 , row=12
currentColumnIndex=5 , row=13
currentColumnIndex=5 , row=14
currentColumnIndex=5 , row=15
currentColumnIndex=5 , row=16
currentColumnIndex=6 , row=0
currentColumnIndex=6 , row=1
currentColumnIndex=6 , row=2
currentColumnIndex=6 , row=3
currentColumnIndex=6 , row=4
currentColumnIndex=6 , row=5
currentColumnIndex=6 , row=6
currentColumnIndex=6 , row=7
currentColumnIndex=6 , row=8
currentColumnIndex=6 , row=9
currentColumnIndex=6 , row=10
currentColumnIndex=6 , row=11
currentColumnIndex=6 , row=12
currentColumnIndex=6 , row=13
currentColumnIndex=6 , row=14
currentColumnIndex=6 , row=15
currentColumnIndex=6 , row=16
currentColumnIndex=7 , row=0
currentColumnIndex=7 , row=1
currentColumnIndex=7 , row=2
currentColumnIndex=7 , row=3
currentColumnIndex=7 , row=4
currentColumnIndex=7 , row=5
currentColumnIndex=7 , row=6
currentColumnIndex=7 , row=7
currentColumnIndex=7 , row=8
currentColumnIndex=7 , row=9
currentColumnIndex=7 , row=10
currentColumnIndex=7 , row=11
currentColumnIndex=7 , row=12
currentColumnIndex=7 , row=13
currentColumnIndex=7 , row=14
currentColumnIndex=7 , row=15
currentColumnIndex=7 , row=16
currentColumnIndex=8 , row=0
currentColumnIndex=8 , row=1
currentColumnIndex=8 , row=2
currentColumnIndex=8 , row=3
currentColumnIndex=8 , row=4
currentColumnIndex=8 , row=5
currentColumnIndex=8 , row=6
currentColumnIndex=8 , row=7
currentColumnIndex=8 , row=8
currentColumnIndex=8 , row=9
currentColumnIndex=8 , row=10
currentColumnIndex=8 , row=11
currentColumnIndex=8 , row=12
currentColumnIndex=8 , row=13
currentColumnIndex=8 , row=14
currentColumnIndex=8 , row=15
currentColumnIndex=8 , row=16
currentColumnIndex=9 , row=0
currentColumnIndex=9 , row=1
currentColumnIndex=9 , row=2
currentColumnIndex=9 , row=3
currentColumnIndex=9 , row=4
currentColumnIndex=9 , row=5
currentColumnIndex=9 , row=6
currentColumnIndex=9 , row=7
currentColumnIndex=9 , row=8
currentColumnIndex=9 , row=9
currentColumnIndex=9 , row=10
currentColumnIndex=9 , row=11
currentColumnIndex=9 , row=12
currentColumnIndex=9 , row=13
currentColumnIndex=9 , row=14
currentColumnIndex=9 , row=15
currentColumnIndex=9 , row=16
currentColumnIndex=10 , row=0
currentColumnIndex=10 , row=1
currentColumnIndex=10 , row=2
currentColumnIndex=10 , row=3
currentColumnIndex=10 , row=4
currentColumnIndex=10 , row=5
currentColumnIndex=10 , row=6
currentColumnIndex=10 , row=7
currentColumnIndex=10 , row=8
currentColumnIndex=10 , row=9
currentColumnIndex=10 , row=10
currentColumnIndex=10 , row=11
currentColumnIndex=10 , row=12
currentColumnIndex=10 , row=13
currentColumnIndex=10 , row=14
currentColumnIndex=10 , row=15
currentColumnIndex=10 , row=16
currentColumnIndex=0 , row=0
currentColumnIndex=1 , row=0
currentColumnIndex=2 , row=0
currentColumnIndex=3 , row=0
currentColumnIndex=4 , row=0
currentColumnIndex=5 , row=0
currentColumnIndex=6 , row=0
currentColumnIndex=7 , row=0
currentColumnIndex=8 , row=0
currentColumnIndex=9 , row=0
currentColumnIndex=10 , row=0
currentColumnIndex=0 , row=1
currentColumnIndex=1 , row=1
currentColumnIndex=2 , row=1
currentColumnIndex=3 , row=1
currentColumnIndex=4 , row=1
currentColumnIndex=5 , row=1
currentColumnIndex=6 , row=1
currentColumnIndex=7 , row=1
currentColumnIndex=8 , row=1
currentColumnIndex=9 , row=1
currentColumnIndex=10 , row=1
currentColumnIndex=0 , row=2
currentColumnIndex=1 , row=2
currentColumnIndex=2 , row=2
currentColumnIndex=3 , row=2
currentColumnIndex=4 , row=2
currentColumnIndex=5 , row=2
currentColumnIndex=6 , row=2
currentColumnIndex=7 , row=2
currentColumnIndex=8 , row=2
currentColumnIndex=9 , row=2
currentColumnIndex=10 , row=2
currentColumnIndex=0 , row=3
currentColumnIndex=1 , row=3
currentColumnIndex=2 , row=3
currentColumnIndex=3 , row=3
currentColumnIndex=4 , row=3
currentColumnIndex=5 , row=3
currentColumnIndex=6 , row=3
currentColumnIndex=7 , row=3
currentColumnIndex=8 , row=3
currentColumnIndex=9 , row=3
currentColumnIndex=10 , row=3
currentColumnIndex=0 , row=4
currentColumnIndex=1 , row=4
currentColumnIndex=2 , row=4
currentColumnIndex=3 , row=4
currentColumnIndex=4 , row=4
currentColumnIndex=5 , row=4
currentColumnIndex=6 , row=4
currentColumnIndex=7 , row=4
currentColumnIndex=8 , row=4
currentColumnIndex=9 , row=4
currentColumnIndex=10 , row=4
currentColumnIndex=0 , row=5
currentColumnIndex=1 , row=5
currentColumnIndex=2 , row=5
currentColumnIndex=3 , row=5
currentColumnIndex=4 , row=5
currentColumnIndex=5 , row=5
currentColumnIndex=6 , row=5
currentColumnIndex=7 , row=5
currentColumnIndex=8 , row=5
currentColumnIndex=9 , row=5
currentColumnIndex=10 , row=5
currentColumnIndex=0 , row=6
currentColumnIndex=1 , row=6
currentColumnIndex=2 , row=6
currentColumnIndex=3 , row=6
currentColumnIndex=4 , row=6
currentColumnIndex=5 , row=6
currentColumnIndex=6 , row=6
currentColumnIndex=7 , row=6
currentColumnIndex=8 , row=6
currentColumnIndex=9 , row=6
currentColumnIndex=10 , row=6
currentColumnIndex=0 , row=7
currentColumnIndex=1 , row=7
currentColumnIndex=2 , row=7
currentColumnIndex=3 , row=7
currentColumnIndex=4 , row=7
currentColumnIndex=5 , row=7
currentColumnIndex=6 , row=7
currentColumnIndex=7 , row=7
currentColumnIndex=8 , row=7
currentColumnIndex=9 , row=7
currentColumnIndex=10 , row=7
currentColumnIndex=0 , row=8
currentColumnIndex=1 , row=8
currentColumnIndex=2 , row=8
currentColumnIndex=3 , row=8
currentColumnIndex=4 , row=8
currentColumnIndex=5 , row=8
currentColumnIndex=6 , row=8
currentColumnIndex=7 , row=8
currentColumnIndex=8 , row=8
currentColumnIndex=9 , row=8
currentColumnIndex=10 , row=8
currentColumnIndex=0 , row=9
currentColumnIndex=1 , row=9
currentColumnIndex=2 , row=9
currentColumnIndex=3 , row=9
currentColumnIndex=4 , row=9
currentColumnIndex=5 , row=9
currentColumnIndex=6 , row=9
currentColumnIndex=7 , row=9
currentColumnIndex=8 , row=9
currentColumnIndex=9 , row=9
currentColumnIndex=10 , row=9
currentColumnIndex=0 , row=10
currentColumnIndex=1 , row=10
currentColumnIndex=2 , row=10
currentColumnIndex=3 , row=10
currentColumnIndex=4 , row=10
currentColumnIndex=5 , row=10
currentColumnIndex=6 , row=10
currentColumnIndex=7 , row=10
currentColumnIndex=8 , row=10
currentColumnIndex=9 , row=10
currentColumnIndex=10 , row=10
currentColumnIndex=0 , row=11
currentColumnIndex=1 , row=11
currentColumnIndex=2 , row=11
currentColumnIndex=3 , row=11
currentColumnIndex=4 , row=11
currentColumnIndex=5 , row=11
currentColumnIndex=6 , row=11
currentColumnIndex=7 , row=11
currentColumnIndex=8 , row=11
currentColumnIndex=9 , row=11
currentColumnIndex=10 , row=11
currentColumnIndex=0 , row=12
currentColumnIndex=1 , row=12
currentColumnIndex=2 , row=12
currentColumnIndex=3 , row=12
currentColumnIndex=4 , row=12
currentColumnIndex=5 , row=12
currentColumnIndex=6 , row=12
currentColumnIndex=7 , row=12
currentColumnIndex=8 , row=12
currentColumnIndex=9 , row=12
currentColumnIndex=10 , row=12
currentColumnIndex=0 , row=13
currentColumnIndex=1 , row=13
currentColumnIndex=2 , row=13
currentColumnIndex=3 , row=13
currentColumnIndex=4 , row=13
currentColumnIndex=5 , row=13
currentColumnIndex=6 , row=13
currentColumnIndex=7 , row=13
currentColumnIndex=8 , row=13
currentColumnIndex=9 , row=13
currentColumnIndex=10 , row=13
currentColumnIndex=0 , row=14
currentColumnIndex=1 , row=14
currentColumnIndex=2 , row=14
currentColumnIndex=3 , row=14
currentColumnIndex=4 , row=14
currentColumnIndex=5 , row=14
currentColumnIndex=6 , row=14
currentColumnIndex=7 , row=14
currentColumnIndex=8 , row=14
currentColumnIndex=9 , row=14
currentColumnIndex=10 , row=14
currentColumnIndex=0 , row=15
currentColumnIndex=1 , row=15
currentColumnIndex=2 , row=15
currentColumnIndex=3 , row=15
currentColumnIndex=4 , row=15
currentColumnIndex=5 , row=15
currentColumnIndex=6 , row=15
currentColumnIndex=7 , row=15
currentColumnIndex=8 , row=15
currentColumnIndex=9 , row=15
currentColumnIndex=10 , row=15
currentColumnIndex=0 , row=16
currentColumnIndex=1 , row=16
currentColumnIndex=2 , row=16
currentColumnIndex=3 , row=16
currentColumnIndex=4 , row=16
currentColumnIndex=5 , row=16
currentColumnIndex=6 , row=16
currentColumnIndex=7 , row=16
currentColumnIndex=8 , row=16
currentColumnIndex=9 , row=16
currentColumnIndex=10 , row=16

这个结果的有趣之处在于每月渲染默认渲染时我是否以不同的顺序渲染tableView？

columnType=Monthly
currentColumnIndex=0 , row=0
currentColumnIndex=1 , row=0
currentColumnIndex=2 , row=0
currentColumnIndex=3 , row=0
currentColumnIndex=4 , row=0
currentColumnIndex=5 , row=0
currentColumnIndex=6 , row=0
currentColumnIndex=7 , row=0
currentColumnIndex=8 , row=0
currentColumnIndex=9 , row=0
currentColumnIndex=10 , row=0
currentColumnIndex=11 , row=0
currentColumnIndex=12 , row=0
...

currentColumnIndex=0 , row=0
currentColumnIndex=1 , row=0
currentColumnIndex=2 , row=0
currentColumnIndex=3 , row=0
currentColumnIndex=4 , row=0
currentColumnIndex=5 , row=0
currentColumnIndex=6 , row=0
currentColumnIndex=7 , row=0
currentColumnIndex=8 , row=0
currentColumnIndex=9 , row=0
currentColumnIndex=10 , row=0
currentColumnIndex=11 , row=0
currentColumnIndex=12 , row=0
...
currentColumnIndex=0 , row=1
currentColumnIndex=1 , row=1
currentColumnIndex=2 , row=1
currentColumnIndex=3 , row=1
currentColumnIndex=4 , row=1
currentColumnIndex=5 , row=1
currentColumnIndex=6 , row=1
currentColumnIndex=7 , row=1
currentColumnIndex=8 , row=1
currentColumnIndex=9 , row=1
currentColumnIndex=10 , row=1
currentColumnIndex=11 , row=1
currentColumnIndex=12 , row=1
....
currentColumnIndex=0 , row=2
currentColumnIndex=1 , row=2
currentColumnIndex=2 , row=2
currentColumnIndex=3 , row=2
currentColumnIndex=4 , row=2
currentColumnIndex=5 , row=2
currentColumnIndex=6 , row=2
currentColumnIndex=7 , row=2
currentColumnIndex=8 , row=2
currentColumnIndex=9 , row=2
currentColumnIndex=10 , row=2
currentColumnIndex=11 , row=2
currentColumnIndex=12 , row=2

... currentColumnIndex = 120，row = 16

我没有足够的角色来展示完整模式，但在此总结了它。

清除表的结果似乎只是暂时的帮助，我这样做是通过设置data = []并重新加载表。

Answer 1

首先，这不是内存问题。

重复使用表视图单元格，您必须确保将所有UI元素设置为已定义的状态。

代码包含if子句，因此您必须添加一个平衡else子句以将颜色设置为默认值，例如：

   if let bghighlight = data[row]["highlightrow"] as? [String:NSNumber] {
        cell.textField?.backgroundColor = NSColor(red: CGFloat(bghighlight["red"]!), green: CGFloat(bghighlight["green"]!), blue: CGFloat(bghighlight["blue"]!), alpha: CGFloat(bghighlight["alpha"]!))
        cell.textField?.textColor = NSColor(red: CGFloat(bghighlight["tred"]!), green: CGFloat(bghighlight["tgreen"]!), blue: CGFloat(bghighlight["tblue"]!), alpha: CGFloat(bghighlight["talpha"]!))
   } else {
       cell.textField?.backgroundColor = .white
       cell.textField?.textColor = .textColor
   }

我稍微更改了代码以使用可选绑定，这样效率更高。

PS：我建议将JSON映射到数据模型，一次又一次地创建相同的颜色是不必要的。

NSTableView表格查看单元格内存问题

1 个答案: