SwiftyFORM

---

SwiftyFORM is a lightweight iOS framework for creating forms

Because form code is hard to write, hard to read, hard to reason about. Has a slow turn around time. Is painful to maintain.

SwiftyFORM demo on YouTube

Requirements

• iOS 12+
• Xcode 12+
• Swift 5.1+

Features

• Several form items, such as textfield, buttons, sliders
• Some form items can expand/collapse, such as datepicker, pickerview
• You can create your own custom form items
• Align textfields across multiple rows
• Form validation rule engine
• Shows with red text where there are problems with validation
• Strongly Typed
• Pure Swift
• No 3rd party dependencies

USAGE

Tutorial 0 - Static text

import SwiftyFORM
class MyViewController: FormViewController {
    override func populate(_ builder: FormBuilder) {
        builder += StaticTextFormItem().title("Hello").value("World")
    }
}

Tutorial 1 - TextField

import SwiftyFORM
class MyViewController: FormViewController {
    override func populate(_ builder: FormBuilder) {
        builder += TextFieldFormItem().title("Email").placeholder("Please specify").keyboardType(.emailAddress)
    }
}

Tutorial 2 - Open child view controller

import SwiftyFORM
class MyViewController: FormViewController {
    override func populate(_ builder: FormBuilder) {
        builder += ViewControllerFormItem().title("Go to view controller").viewController(FirstViewController.self)
    }
}

Advanced - date picker

class DatePickerBindingViewController: FormViewController {
    override func populate(_ builder: FormBuilder) {
        builder += datePicker
        builder += incrementButton
        builder += decrementButton
        builder += SectionFormItem()
        builder += summary
        updateSummary()
    }
    
    lazy var datePicker: DatePickerFormItem = {
        let instance = DatePickerFormItem()
        instance.title = "Date"
        instance.datePickerMode = .date
        instance.behavior = .expandedAlways
        instance.valueDidChangeBlock = { [weak self] _ in
            self?.updateSummary()
        }
        return instance
    }()
    
    lazy var incrementButton: ButtonFormItem = {
        let instance = ButtonFormItem()
        instance.title = "Next Day"
        instance.action = { [weak self] in
            self?.increment()
        }
        return instance
    }()
    
    lazy var decrementButton: ButtonFormItem = {
        let instance = ButtonFormItem()
        instance.title = "Previous Day"
        instance.action = { [weak self] in
            self?.decrement()
        }
        return instance
    }()
    
    lazy var summary: StaticTextFormItem = {
        return StaticTextFormItem().title("Date").value("-")
    }()
    
    func updateSummary() {
        summary.value = "\(datePicker.value)"
    }
    
    func offsetDate(_ date: Date, days: Int) -> Date {
        var dateComponents = DateComponents()
        dateComponents.day = days
        let calendar = Calendar.current
        guard let resultDate = calendar.date(byAdding: dateComponents, to: date) else {
            return date
        }
        return resultDate
    }
    
    func increment() {
        datePicker.setValue(offsetDate(datePicker.value, days: 1), animated: true)
        updateSummary()
    }
    
    func decrement() {
        datePicker.setValue(offsetDate(datePicker.value, days: -1), animated: true)
        updateSummary()
    }
}

Advanced - Validation

class ChangePasswordViewController: FormViewController {
    override func populate(_ builder: FormBuilder) {
        builder.navigationTitle = "Password"
        builder += SectionHeaderTitleFormItem().title("Your Old Password")
        builder += passwordOld
        builder += SectionHeaderTitleFormItem().title("Your New Password")
        builder += passwordNew
        builder += passwordNewRepeated
        builder.alignLeft([passwordOld, passwordNew, passwordNewRepeated])
    }
    
    lazy var passwordOld: TextFieldFormItem = {
        let instance = TextFieldFormItem()
        instance.title("Old password").password().placeholder("required")
        instance.keyboardType = .numberPad
        instance.autocorrectionType = .no
        instance.validate(CharacterSetSpecification.decimalDigitCharacterSet(), message: "Must be digits")
        instance.submitValidate(CountSpecification.min(4), message: "Length must be minimum 4 digits")
        instance.validate(CountSpecification.max(6), message: "Length must be maximum 6 digits")
        return instance
        }()
    
    lazy var passwordNew: TextFieldFormItem = {
        let instance = TextFieldFormItem()
        instance.title("New password").password().placeholder("required")
        instance.keyboardType = .numberPad
        instance.autocorrectionType = .no
        instance.validate(CharacterSetSpecification.decimalDigitCharacterSet(), message: "Must be digits")
        instance.submitValidate(CountSpecification.min(4), message: "Length must be minimum 4 digits")
        instance.validate(CountSpecification.max(6), message: "Length must be maximum 6 digits")
        return instance
        }()
    
    lazy var passwordNewRepeated: TextFieldFormItem = {
        let instance = TextFieldFormItem()
        instance.title("Repeat password").password().placeholder("required")
        instance.keyboardType = .numberPad
        instance.autocorrectionType = .no
        instance.validate(CharacterSetSpecification.decimalDigitCharacterSet(), message: "Must be digits")
        instance.submitValidate(CountSpecification.min(4), message: "Length must be minimum 4 digits")
        instance.validate(CountSpecification.max(6), message: "Length must be maximum 6 digits")
        return instance
        }()
}

INSTALLATION

Swift Package Manager

With Swift Package Manager support in the latest Xcode, installation has never been easier.

Open your Xcode project -> File -> Swift Packages -> Add Package Dependency...

Search for SwiftyFORM and specify the version you want. The latest tagged release is usually a good idea.

CocoaPods

To integrate SwiftyFORM into your Xcode project using CocoaPods, specify the following in your Podfile:

source 'https://github.com/CocoaPods/Specs.git'
swift_version = '5.0'
platform :ios, '12.0'
use_frameworks!

target 'MyApp' do
    pod 'SwiftyFORM', '~> 1.8'
end

Then, run the following command:

$ pod install

Carthage

Link to demo project that shows a minimal SwiftyFORM app using Carthage.

To integrate SwiftyFORM into your Xcode project using Carthage, specify it in your Cartfile:

github "neoneye/SwiftyFORM" ~> 1.8

Then, run the following command:

$ carthage update

Finally, add SwiftyFORM.framework (will be built by Carthage under Carthage/Build/iOS/) to your project's Linked Frameworks and Libraries in the General tab, and add a new Run Script Build Phase:

• Set /bin/bash as the shell
• write /usr/local/bin/carthage copy-frameworks in the script body
• add $(SRCROOT)/Carthage/Build/iOS/SwiftyFORM.framework to the input files

Manual

1. Open up Terminal application and cd into your iOS project directory

2. ONLY IF your project is not already initialized as a git repository, run

$ git init

3. Add SwiftyFORM as a submodule by running

$ git submodule add https://github.com/neoneye/SwiftyFORM.git

4. In the Project Navigator, select your application project and go to "Targets" -> "General"

5. Open the project folder and drag the SwiftyFORM.xcodeproj file into the "Frameworks, Libraries, and Embedded Content" tab of your application.

6. Click the + button under the "Frameworks, Libraries, and Embedded Content" section and Add the SwiftyFORM.framework

Communication

• If you want to contribute, submit a pull request.
• If you found a bug, have suggestions or need help, please, open an issue.
• If you need help, write me: neoneye@gmail.com