我正忙着制作IOS 8键盘，我需要一些帮助。
我已经制作了一个基本的键盘，一切正常，但我有一个颠簸，我需要一些帮助来解决它们。我在swift中编写了代码（请记住，我是swift的新手）。
我需要以下方面的帮助：
要将键盘从十进制（正常的字母）转换为数字（数字/符号一），我为它编写了一些代码（它基本上分别隐藏了键盘并再次显示它们）但我不是＆＃ 39;当我点击＆＃34; 123＆＃34;时，我知道如何让它运行按钮。
当我键入一个键时，例如。 ＆＃34; A＆＃34;它打印出它在键盘上的确切显示方式如何自动将其设为小写，然后实现一个移位按钮给我大写字母？
非常感谢一些帮助解决这个问题。
这是我到目前为止的代码：
import UIKit
class KeyboardViewController: UIInputViewController
{
@IBOutlet var nextKeyboardButton: UIButton!
var allButtons = [UIButton]()
override func updateViewConstraints()
{
super.updateViewConstraints()
// Add custom view sizing constraints here
}
override func viewDidLoad()
{
//Normal Keyboard start
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 = ["⬆︎", "Z", "X", "C", "V", "B", "N", "M", "⬅︎"]
let buttonTitles4 = ["123","","⎯", "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])
applyCurrentTheme()
//Normal keyboard end
//Change to numeric keyboard start
let buttonsNum1FirstRow = ["1", "2", "3", "4", "5", "6", "7", "8", "9", "0"]
let buttonsNum2FirstRow = ["-", "/", ":", ";", "(", ")", "$", "&", "@", "\""]
let buttonsNum3FirstRow = ["#+=", ".", ",", "?", "!", "'", "7", "⬅︎"]
let buttonsNum4FirstRow = ["ABC","⎯","Return"]
//define rows as class variable instead of function variable
var Srow1:UIView!
var Srow2:UIView!
var Srow3:UIView!
var Srow4:UIView!
var Srow1Num:UIView!
//Hide it like below:
func didTapChangeToNumbersButton(sender: AnyObject?)
{
Srow1.hidden = true
Srow1Num.hidden = false
}
//Change to numeric keyboard end
}
func createRowOfButtons(buttonTitles: [NSString]) -> UIView
{
var buttons = [UIButton]()
var keyboardRowView = UIView(frame: CGRectMake(0, 0, 320, 50))
for buttonTitle in buttonTitles
{
let button = createButtonWithTitle(buttonTitle)
buttons.append(button)
keyboardRowView.addSubview(button)
}
allButtons += buttons
addIndividualButtonConstraints(buttons, mainView: keyboardRowView)
return keyboardRowView
}
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 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(10)
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
let capon = false;
let capslast = false;
let capslock = false;
let spacelast = false;
if let title = button.titleForState(.Normal)
{
switch title
{
case "" :
self.advanceToNextInputMode()
case "." :
let capon = true
proxy.insertText(".")
let spacelast = false
let capslast = false
//Caps idea
//this caps lock code is experimental and actually doesn't work, just an idea I was playing with
case "⬆︎" :
let capon = !capon
if capslock
{
let capon = true
let capslock = false
let capslast = false
}
let capslast = true
//Caps idea
case "⬅︎" :
proxy.deleteBackward()
let spacelast = false
let capslast = false
case "Return" :
proxy.insertText("\n")
let spacelast = false
let capslast = false
case "⎯" :
if spacelast
{
proxy.deleteBackward()
proxy.insertText(". ")
let spacelast = false
let capon = true
}
else
{
proxy.insertText(" ")
let spacelast = true
}
let capslast = false
default :
proxy.insertText(title)
}
}
}
func applyCurrentTheme()
{
var theme = ClaptonTheme()
theme.applyThemeToView(self.view)
theme.applyThemeToKeys(allButtons)
}
func addIndividualButtonConstraints(buttons: [UIButton], mainView: UIView)
{
for (index, button) in enumerate(buttons)
{
var topConstraint = NSLayoutConstraint(item: button, attribute: .Top, relatedBy: .Equal, toItem: mainView, attribute: .Top, multiplier: 1.0, constant: 1)
var bottomConstraint = NSLayoutConstraint(item: button, attribute: .Bottom, relatedBy: .Equal, toItem: mainView, attribute: .Bottom, multiplier: 1.0, constant: -1)
var rightConstraint : NSLayoutConstraint!
if index == buttons.count - 1
{
rightConstraint = NSLayoutConstraint(item: button, attribute: .Right, relatedBy: .Equal, toItem: mainView, attribute: .Right, multiplier: 1.0, constant: -1)
}
else
{
let nextButton = buttons[index+1]
rightConstraint = NSLayoutConstraint(item: button, attribute: .Right, relatedBy: .Equal, toItem: nextButton, attribute: .Left, multiplier: 1.0, constant: -1)
}
var leftConstraint : NSLayoutConstraint!
if index == 0 {
leftConstraint = NSLayoutConstraint(item: button, attribute: .Left, relatedBy: .Equal, toItem: mainView, attribute: .Left, multiplier: 1.0, constant: 1)
}
else
{
let prevtButton = buttons[index-1]
leftConstraint = NSLayoutConstraint(item: button, attribute: .Left, relatedBy: .Equal, toItem: prevtButton, attribute: .Right, multiplier: 1.0, constant: 1)
let firstButton = buttons[0]
var widthConstraint = NSLayoutConstraint(item: firstButton, attribute: .Width, relatedBy: .Equal, toItem: button, attribute: .Width, multiplier: 1.0, constant: 0)
widthConstraint.priority = 800
mainView.addConstraint(widthConstraint)
}
mainView.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: -1)
var leftConstraint = NSLayoutConstraint(item: rowView, attribute: .Left, relatedBy: .Equal, toItem: inputView, attribute: .Left, multiplier: 1.0, constant: 1)
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)
}
else
{
let prevRow = rowViews[index-1]
topConstraint = NSLayoutConstraint(item: rowView, attribute: .Top, relatedBy: .Equal, toItem: prevRow, attribute: .Bottom, multiplier: 1.0, constant: 0)
let firstRow = rowViews[0]
var heightConstraint = NSLayoutConstraint(item: firstRow, attribute: .Height, relatedBy: .Equal, toItem: rowView, attribute: .Height, multiplier: 1.0, constant: 0)
heightConstraint.priority = 800
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)
}
else
{
let nextRow = rowViews[index+1]
bottomConstraint = NSLayoutConstraint(item: rowView, attribute: .Bottom, relatedBy: .Equal, toItem: nextRow, attribute: .Top, multiplier: 1.0, constant: 0)
}
inputView.addConstraint(bottomConstraint)
}
}
}