Eureka Forms Swift 启用和禁用按钮

Posted 2023-03-10

【中文标题】Eureka Forms Swift 启用和禁用按钮

【英文标题】：Eureka Forms Swift enable and disable button

【发布时间】：2017-02-15 19:51:51

【问题描述】：

我正在使用 Eureka Forms 在我的应用中创建注册函数。

我想弄清楚这个问题。

用户有一些需要给我们的字段。在他关闭所有信息并检查我们想要的所有按钮之前，我希望按钮提交被禁用或隐藏。当所需的行完成时，按钮应该可用/显示。

这是我用尤里卡制作的课程

class RegisterViewController: FormViewController 

    var xwra = 1
    override func viewDidLoad() 
        super.viewDidLoad()

        LabelRow.defaultCellUpdate =  cell, row in
            cell.contentView.backgroundColor = .red
            cell.textLabel?.textColor = .white
            cell.textLabel?.font = UIFont.boldSystemFont(ofSize: 13)
            cell.textLabel?.textAlignment = .right

        

        TextRow.defaultCellUpdate =  cell, row in
            if !row.isValid 
                cell.titleLabel?.textColor = .red
            
        
        PhoneRow.defaultCellUpdate =  cell, row in
            if !row.isValid 
                cell.titleLabel?.textColor = .red
            
        
        PickerInlineRow<String>.defaultCellUpdate =  cell, row in
            if !row.isValid 
                cell.backgroundColor = .red
            
        

        PasswordRow.defaultCellUpdate =  cell, row in
            if !row.isValid 
                cell.titleLabel?.textColor = .red
            
        
        ButtonRow.defaultCellUpdate =  cell, row in
            cell.textLabel?.numberOfLines = 0
        

        form +++ Section("Τα Προσωπικά Στοιχεία σας")
            <<< TextRow("name") row in
                row.title = "Όνομα"
                row.add(rule: RuleRequired())
                row.validationOptions = .validatesOnChange
                row.placeholder = "Enter text here"
                
                .cellUpdate  cell, row in
                    if !row.isValid 
                        cell.titleLabel?.textColor = .red
                    
            
            <<< TextRow("surname") row in
                row.title = "Επώνυμο"
                row.add(rule: RuleRequired())
                row.placeholder = "Enter text here"
            
            <<< TextRow("email") row in
                row.title = "Email"
                row.add(rule: RuleRequired())
                row.add(rule: RuleEmail())
                row.placeholder = "Enter text here"
            
            <<< PhoneRow("phone")

                $0.title = "Τηλέφωνο"
                $0.add(rule: RuleRequired())
                $0.placeholder = "Enter text here"
            
            <<< PhoneRow("fax")
                $0.title = "Φαξ"
                $0.placeholder = "And numbers here"
            
            +++ Section("Η Διεύθυνση σας")
            <<< TextRow("company") row in
                row.title = "Επωνυμία"
                row.add(rule: RuleRequired())
                row.placeholder = "Enter text here"
        
            <<< TextRow("job") row in
                row.title = "Επάγγελμα"
                row.add(rule: RuleRequired())
                row.placeholder = "Enter text here"
        
            <<< TextRow("afm") row in
                row.title = "Α.Φ.Μ. / Δ.Ο.Υ"
                row.add(rule: RuleRequired())
                row.placeholder = "Enter text here"
        
            <<< TextRow("address1") row in
                row.title = "Διεύθυνση 1"
                row.add(rule: RuleRequired())
                row.placeholder = "Enter text here"
        
            <<< TextRow("address2") row in
                row.title = "Διεύθυνση 2"
                row.placeholder = "Enter text here"
        
            <<< TextRow("town") row in
                row.title = "Πόλη"
                row.add(rule: RuleRequired())
                row.placeholder = "Enter text here"
        
            <<< TextRow("tk") row in
                row.title = "Τ.Κ."
                row.add(rule: RuleRequired())
                row.placeholder = "Enter text here"
        
            <<< PickerInlineRow<String>("countrytag") 
                $0.title = "Χώρα"
                $0.options = ["Ελλάδα", "Κύπρος"]
                $0.add(rule: RuleRequired())
                .onChange  row in
                    if row.value == "Ελλάδα" 
                        self.xwra = 1
                     else 
                        self.xwra = 0
                    
            
            <<< PickerInlineRow<String>("loctag") 
                $0.title = "Πόλη"
                $0.add(rule: RuleRequired())
                .onCellSelection( (cell, row) in
                    if self.xwra == 1 
                        print("its one")
                        row.options = ["Ελλάδα", "Κύπρος", "Κύπρος", "Κύπρος", "Κύπρος"]
                        row.updateCell()
                     else 
                        print("its not one")
                        row.options = ["Ελλάδα"]
                        row.updateCell()
                    
                )
            +++ Section(header: "O Κωδικος σας", footer: "Θα πρέπει να είναι ίδιος και στα δύο πεδία.")

            <<< PasswordRow("password") 
                $0.title = "Password"
            
            <<< PasswordRow() 
                $0.title = "Confirm Password"
                    $0.add(rule: RuleEqualsToRow(form: form, tag: "password"))
                
                .cellUpdate  cell, row in
                    if !row.isValid 
                        cell.titleLabel?.textColor = .red
                    
            

            +++ Section("Λήψη Ενημερωτικών Δελτίων")
            <<< SwitchRow("SwitchRow")  row in
                row.title = "The title"
                    

            +++ SelectableSection<ImageCheckRow<String>>("", selectionType: .singleSelection(enableDeselection: true))
            <<< ImageCheckRow<String>() lrow in
                lrow.title = "Έχω διαβάσει και αποδέχομαι τους όρους χρήσης - δήλωσης απορρήτου"
                lrow.selectableValue = ""
                lrow.value = nil
                .cellSetup  cell, _ in
                    cell.trueImage = UIImage(named: "selectedRectangle")!
                    cell.falseImage = UIImage(named: "unselectedRectangle")!

            

            <<< ButtonRow("terms") 
                $0.title = "Όροι Χρήσης - Δήλωση Απορρήτου"
                $0.presentationMode = .segueName(segueName: "oroi", onDismiss: nil)
            

            <<< ButtonRow("register") 
                $0.title = "Εγγραφή"
                $0.cell.backgroundColor = .red
                $0.cell.tintColor = .white
                
                .onCellSelection  cell, row in
                    //send data to server function

        
    

  

有人能告诉我如何让它工作吗？ 非常感谢！

更新 1。

最后一个按钮

<<< ButtonRow("register") 
                $0.title = "Εγγραφή"
                $0.cell.backgroundColor = .red
                $0.cell.tintColor = .white
                
                .onCellSelection  cell, row in
                    row.section?.form?.validate()

        

在选择单元格时，检查所有需要的数据，如果它们不正确，则文本变为红色。 所以问题又是一样的。如果验证为真，我如何运行发送到服务器功能？

【参考方案1】：

我遇到了同样的问题，下面的代码获取错误计数，如果它是 0 表格是好的，如果它有任何错误它什么都不做，则继续你的下一个函数。

<<< ButtonRow()  (row: ButtonRow) -> Void in
            row.title = "LOGIN"
            
            .onCellSelection  [weak self] (cell, row) in
                print("validating errors: \(row.section?.form?.validate().count)")
                if row.section?.form?.validate().count == 0
                    self?.loginAction(row)
                
    

【讨论】：

此答案应标记为正确。它实际上解决了问题。谢谢那个人

【参考方案2】：

此示例在末尾添加一个按钮，该按钮将被禁用，直到所有行都通过验证：

<<< ButtonRow("signin") 
    $0.title = "Sign In"
    $0.disabled = Condition.function(
        form.allRows.flatMap  $0.tag , // All row tags
         !$0.validate().isEmpty ) // Form has no validation errors