使用调用自定义 tableview 单元格的函数简化 tableview 代码

Question

希望通过在我的 tableview 函数中使用一个函数来简化我的代码。我认为这是可能的，但我什至不知道如何开始。我尝试创建一个函数来执行我想要的操作，但我不知道如何在我的函数中调用自定义单元格变量。

这是我要简化的代码：

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    if indexPath.section == 0 {
        // PART 1
        let cell = tableView.dequeueReusableCell(withIdentifier: "CustomCell1", for: indexPath) as! PaydayDetailCellA1
        let (jobDescription, day1, day2, day3, day4, day5, day6, day7, _) = tempPaydayDailyJobs[indexPath.row]

        cell.tallyView.layer.cornerRadius = cell.tallyView.bounds.height / 6.4
        cell.tallyView.layer.masksToBounds = true
        cell.tallyView.layer.borderColor = UIColor.lightGray.cgColor
        cell.tallyView.layer.borderWidth = 0.5

        cell.jobDesc.text = jobDescription

        cell.dayColor1.text = day1
        switch day1 {
        case "1":
            cell.dayColor1.text = ""
            cell.dayColor1.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
        case "X":
            cell.dayColor1.text = ""
            cell.dayColor1.backgroundColor = UIColor.red
        case "E":
            cell.dayColor1.backgroundColor = UIColor.lightGray
        default:
            cell.dayColor1.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
            cell.dayColor1.textColor = UIColor.white
        }

        cell.dayColor2.text = day2
        switch day2 {
        case "1":
            cell.dayColor2.text = ""
            cell.dayColor2.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
        case "X":
            cell.dayColor2.text = ""
            cell.dayColor2.backgroundColor = UIColor.red
        case "E":
            cell.dayColor2.backgroundColor = UIColor.lightGray
        default:
            cell.dayColor2.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
            cell.dayColor2.textColor = UIColor.white
        }

        cell.dayColor3.text = day3
        switch day3 {
        case "1":
            cell.dayColor3.text = ""
            cell.dayColor3.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
        case "X":
            cell.dayColor3.text = ""
            cell.dayColor3.backgroundColor = UIColor.red
        case "E":
            cell.dayColor3.backgroundColor = UIColor.lightGray
        default:
            cell.dayColor3.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
            cell.dayColor3.textColor = UIColor.white
        }

        cell.dayColor4.text = day4
        switch day4 {
        case "1":
            cell.dayColor4.text = ""
            cell.dayColor4.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
        case "X":
            cell.dayColor4.text = ""
            cell.dayColor4.backgroundColor = UIColor.red
        case "E":
            cell.dayColor4.backgroundColor = UIColor.lightGray
        default:
            cell.dayColor4.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
            cell.dayColor4.textColor = UIColor.white
        }

        cell.dayColor5.text = day5
        switch day5 {
        case "1":
            cell.dayColor5.text = ""
            cell.dayColor5.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
        case "X":
            cell.dayColor5.text = ""
            cell.dayColor5.backgroundColor = UIColor.red
        case "E":
            cell.dayColor5.backgroundColor = UIColor.lightGray
        default:
            cell.dayColor5.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
            cell.dayColor5.textColor = UIColor.white
        }

        cell.dayColor6.text = day6
        switch day6 {
        case "1":
            cell.dayColor6.text = ""
            cell.dayColor6.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
        case "X":
            cell.dayColor6.text = ""
            cell.dayColor6.backgroundColor = UIColor.red
        case "E":
            cell.dayColor6.backgroundColor = UIColor.lightGray
        default:
            cell.dayColor6.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
            cell.dayColor6.textColor = UIColor.white
        }

        cell.dayColor7.text = day7
        switch day7 {
        case "1":
            cell.dayColor7.text = ""
            cell.dayColor7.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
        case "X":
            cell.dayColor7.text = ""
            cell.dayColor7.backgroundColor = UIColor.red
        case "E":
            cell.dayColor7.backgroundColor = UIColor.lightGray
        default:
            cell.dayColor7.backgroundColor = UIColor(red: 141/255, green: 198/255, blue: 63/255, alpha: 1)
            cell.dayColor7.textColor = UIColor.white
        }

        return cell

    } else {
        // PART 2
        let cell2 = tableView.dequeueReusableCell(withIdentifier: "CustomCell2", for: indexPath) as! PaydayDetailCellA2
        let (_, pointAmount) = tempDailyChoresSummary[indexPath.row]

        cell2.dailyChoresNumber.text = "\(pointAmount)"
        cell2.jobConsistencyBonusNumber.text = "\(pointAmount)"
        cell2.previousUnpaidAmountsNumber.text = "\(pointAmount)"
        cell2.dailyChoresSubtotalNumber.text = "\(pointAmount)"

        return cell2
    }
}

我在自定义表格视图单元格中有一块标签。我希望标签的背景颜色根据外部数组中的数据改变颜色。我附上了一张它的样子（如果有帮助的话）。 Here is the picture of the tableview with colored labels.

或者有没有更简单的方法来做我想做的事情？

Answer 1

这种方法可以减少表函数中的代码。请记住，这是一个概念。 您可以通过创建 UITableViewCell 的扩展来打破一些重复的属性设置。

首先创建一个协议

protocol Settable {
    func setData(val: Int)
}

然后做一个扩展

extension Settable {
    func setData(jobDescription: String, jobSubtotal: String, cornerRadius: Float, maskToBounds: Bool, borderColor: CGColor, borderWidth: Float) {
        self.tallyView.layer.cornerRadius = cornerRadius
        self.tallyView.layer.masksToBounds = maskToBounds
        self.tallyView.layer.borderColor = borderColor
        self.tallyView.layer.borderWidth = borderWidth
        self.jobDesc.text = jobDescription
        self.jobSubtotal.text = jobSubtotal
    }
}

然后扩展你的 UITableViewCell

class PaydayNewCellA1 : UITableViewCell, Settable {

}
class PaydayNewCellB1 : UITableViewCell, Settable {

}
class PaydayNewCellC1 : UITableViewCell, Settable {

}

然后你可以在你的函数中执行以下操作：

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    if (tableView == self.tableView1) {
        if indexPath.section == 0 {
            let cell = tableView1.dequeueReusableCell(withIdentifier: "CustomCell1", for: indexPath) as! PaydayNewCellA1
            // Now use the function
            cell.setData(jobDescription: "daily job \(indexPath.row + 1)", jobSubtotal: "50", cornerRadius: cell.tallyView.bounds.height / 6.4, maskToBounds: true, borderColor: UIColor.lightGray.cgColor, borderWidth: 0.5)
            return cell
        } else {
            let cell = tableView1.dequeueReusableCell(withIdentifier: "CustomCell2", for: indexPath) as! PaydayNewCellA2
            return cell
        }
    } else if (tableView == tableView2) {

     // rest of code etc

}