Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
KeyboardViewController.swift source from AppDesignVault with AutoLayout constraints fixed.
//
// KeyboardViewController.swift
// Demo Custom Keyboard
//
// Created by Drew Lustro on 10/20/14.
//
// Original derived from tutorial found on AppDesignVault
// http://www.appdesignvault.com/ios-8-custom-keyboard-extension/
//
//
// *** ALL AUTOLAYOUT CONSTRAINTS HAVE BEEN FIXED! ;) NO MORE WARNINGS
//
//
import UIKit
class KeyboardViewController: UIInputViewController {
override func updateViewConstraints() {
super.updateViewConstraints()
// Add custom view sizing constraints here
}
override func viewDidLoad() {
super.viewDidLoad()
let buttonTitles1 = ["Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P"]
let buttonTitles2 = ["A", "S", "D", "F", "G", "H", "J", "K", "L"]
let buttonTitles3 = ["CP", "Z", "X", "C", "V", "B", "N", "M", "BP"]
let buttonTitles4 = ["CHG", "SPACE", "RETURN"]
var row1 = createRowOfButtons(buttonTitles1)
var row2 = createRowOfButtons(buttonTitles2)
var row3 = createRowOfButtons(buttonTitles3)
var row4 = createRowOfButtons(buttonTitles4)
self.view.addSubview(row1)
self.view.addSubview(row2)
self.view.addSubview(row3)
self.view.addSubview(row4)
row1.setTranslatesAutoresizingMaskIntoConstraints(false)
row2.setTranslatesAutoresizingMaskIntoConstraints(false)
row3.setTranslatesAutoresizingMaskIntoConstraints(false)
row4.setTranslatesAutoresizingMaskIntoConstraints(false)
addConstraintsToInputView(self.view, rowViews: [row1, row2, row3, row4])
}
func createRowOfButtons(buttonTitles: [NSString]) -> UIView {
var buttons = [UIButton]()
var keyboardRowView = UIView(frame: CGRectMake(0, 0, 320, 50))
keyboardRowView.tag = self.rowCount++
for buttonTitle in buttonTitles {
let button = createButtonWithTitle(buttonTitle)
buttons.append(button)
keyboardRowView.addSubview(button)
}
addIndividualButtonConstraints(buttons, rowView: keyboardRowView)
return keyboardRowView
}
func createButtonWithTitle(title: String) -> UIButton {
let button = UIButton.buttonWithType(.System) as UIButton
button.frame = CGRectMake(0, 0, 20, 20)
button.setTitle(title, forState: .Normal)
button.sizeToFit()
button.titleLabel?.font = UIFont.systemFontOfSize(15)
button.setTranslatesAutoresizingMaskIntoConstraints(false)
button.backgroundColor = UIColor(white: 1.0, alpha: 1.0)
button.setTitleColor(UIColor.darkGrayColor(), forState: .Normal)
button.addTarget(self, action: "didTapButton:", forControlEvents: .TouchUpInside)
return button
}
func didTapButton(sender: AnyObject?) {
let button = sender as UIButton
var proxy = textDocumentProxy as UITextDocumentProxy
if let title = button.titleForState(.Normal) as String? {
switch title {
case "BP":
proxy.deleteBackward()
case "RETURN":
proxy.insertText("\n")
case "SPACE":
proxy.insertText(" ")
case "CHG":
self.advanceToNextInputMode()
default:
proxy.insertText(title)
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated
}
override func textWillChange(textInput: UITextInput) {
// The app is about to change the document's contents. Perform any preparation here.
}
override func textDidChange(textInput: UITextInput) {
// The app has just changed the document's contents, the document context has been updated.
var textColor: UIColor
var proxy = self.textDocumentProxy as UITextDocumentProxy
if proxy.keyboardAppearance == UIKeyboardAppearance.Dark {
textColor = UIColor.whiteColor()
} else {
textColor = UIColor.blackColor()
}
}
func addIndividualButtonConstraints(buttons: [UIButton], rowView: UIView){
for (index, button) in enumerate(buttons) {
var topConstraint = NSLayoutConstraint(item: button, attribute: .Top, relatedBy: .LessThanOrEqual, toItem: rowView, attribute: .Top, multiplier: 1.0, constant: 1.0)
var bottomConstraint = NSLayoutConstraint(item: button, attribute: .Bottom, relatedBy: .GreaterThanOrEqual, toItem: rowView, attribute: .Bottom, multiplier: 1.0, constant: -1.0)
var rightConstraint : NSLayoutConstraint!
if index == buttons.count - 1 {
rightConstraint = NSLayoutConstraint(item: button, attribute: .Right, relatedBy: .GreaterThanOrEqual, toItem: rowView, attribute: .Right, multiplier: 1.0, constant: 0.0)
} else {
let nextButton = buttons[index+1]
rightConstraint = NSLayoutConstraint(item: button, attribute: .Right, relatedBy: .Equal, toItem: nextButton, attribute: .Left, multiplier: 1.0, constant: -1.0)
}
var leftConstraint : NSLayoutConstraint!
if index == 0 {
leftConstraint = NSLayoutConstraint(item: button, attribute: .Left, relatedBy: .LessThanOrEqual, toItem: rowView, attribute: .Left, multiplier: 1.0, constant: 0.0)
} else {
let prevtButton = buttons[index-1]
leftConstraint = NSLayoutConstraint(item: button, attribute: .Left, relatedBy: .Equal, toItem: prevtButton, attribute: .Right, multiplier: 1.0, constant: 1.0)
let firstButton = buttons[0]
var widthConstraint = NSLayoutConstraint(item: firstButton, attribute: .Width, relatedBy: .Equal, toItem: button, attribute: .Width, multiplier: 1.0, constant: 0.0)
widthConstraint.priority = 800.0
rowView.addConstraint(widthConstraint)
}
rowView.addConstraints([topConstraint, bottomConstraint, rightConstraint, leftConstraint])
}
}
func addConstraintsToInputView(inputView: UIView, rowViews: [UIView]){
for (index, rowView) in enumerate(rowViews) {
var rightSideConstraint = NSLayoutConstraint(item: rowView, attribute: .Right, relatedBy: .Equal, toItem: inputView, attribute: .Right, multiplier: 1.0, constant: 0.0)
var leftConstraint = NSLayoutConstraint(item: rowView, attribute: .Left, relatedBy: .Equal, toItem: inputView, attribute: .Left, multiplier: 1.0, constant: 0.0)
inputView.addConstraints([leftConstraint, rightSideConstraint])
var topConstraint: NSLayoutConstraint
if index == 0 {
topConstraint = NSLayoutConstraint(item: rowView, attribute: .Top, relatedBy: .Equal, toItem: inputView, attribute: .Top, multiplier: 1.0, constant: 0.0)
} else {
let prevRow = rowViews[index-1]
topConstraint = NSLayoutConstraint(item: rowView, attribute: .Top, relatedBy: .Equal, toItem: prevRow, attribute: .Bottom, multiplier: 1.0, constant: 0.0)
let firstRow = rowViews[0]
var heightConstraint = NSLayoutConstraint(item: firstRow, attribute: .Height, relatedBy: .Equal, toItem: rowView, attribute: .Height, multiplier: 1.0, constant: 0.0)
heightConstraint.priority = 800.0
inputView.addConstraint(heightConstraint)
}
inputView.addConstraint(topConstraint)
var bottomConstraint: NSLayoutConstraint
if index == (rowViews.count - 1) {
bottomConstraint = NSLayoutConstraint(item: rowView, attribute: .Bottom, relatedBy: .Equal, toItem: inputView, attribute: .Bottom, multiplier: 1.0, constant: 0.0)
} else {
let nextRow = rowViews[index+1]
bottomConstraint = NSLayoutConstraint(item: rowView, attribute: .Bottom, relatedBy: .Equal, toItem: nextRow, attribute: .Top, multiplier: 1.0, constant: 0.0)
}
inputView.addConstraint(bottomConstraint)
}
}
}
@yustein

This comment has been minimized.

Copy link

@yustein yustein commented Jan 4, 2016

Hi,

This is SWIFT 1 Style, can you convert it to SWIFT 2 if possible?

Kind regards,
Tony

@critical186

This comment has been minimized.

Copy link

@critical186 critical186 commented Oct 30, 2016

I took this code and made it work for Swift 3.

https://gist.github.com/critical186/4c05e2700fd233507ef1460bd8d969f7

Jared

Just some notes on things that changed

The compiler can correct a lot of the things that changed like .Normal becoming .normal. Here is a list of the items that can not be fixed automatically fixed by the compiler and it took me a long time to figure out the correct way to do it.

Was:
CGRectMake(0, 0, 320, 50)
Is:
CGRect(x:0, y:0, width: 320, height: 50)

Was:
button.setTranslatesAutoresizingMaskIntoConstraints(false)
Is:
button.translatesAutoresizingMaskIntoConstraints = false

Was:
button.addTarget(self, action: "didTapButton:", forControlEvents: .TouchUpInside)
Is:
button.addTarget(self, action:#selector(didTapButton(_:)), for: .touchUpInside)

Was:
for (index, button) in enumerate(buttons) {
}
Is:
for (index, button) in buttons.enumerated() {
}

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment