我需要一些严重的帮助与自动布局。我总共有12个按钮,我试图将其作为键盘布局。它最终应该看起来像这样。AutoLayout约束或StackView
目前,它看起来像这样
这里是我目前的制约因素。
我真的需要一些帮助工作这个out.Can有人任何人的帮助。我是编程和XCODE的新手。但是这不应该这么难。我可以请一些帮助。我在教程后观看了关于自动布局的教程,这是一个非常混乱的概念。我需要布置这个简单的钢琴键盘,请帮助。
感谢
我需要一些严重的帮助与自动布局。我总共有12个按钮,我试图将其作为键盘布局。它最终应该看起来像这样。AutoLayout约束或StackView
目前,它看起来像这样
这里是我目前的制约因素。
我真的需要一些帮助工作这个out.Can有人任何人的帮助。我是编程和XCODE的新手。但是这不应该这么难。我可以请一些帮助。我在教程后观看了关于自动布局的教程,这是一个非常混乱的概念。我需要布置这个简单的钢琴键盘,请帮助。
感谢
我会建议以编程方式尝试和设置您的约束,而不能在接口生成器。通过这种方式,您将能够了解实际发生的约束条件,并且能够在界面构建器中轻松完成。
有三种类型的编程Autolay约束表示法: 1. init(item:attribute:relatedBy:toItem:attribute:multiplier:constant :)。当您需要基于百分比的布局(乘数)时最好使用。 2.锚符号(iOS9中的新增功能)。我没有使用新的锚符号的经验,但我知道它与界面构建器中约束的组成相似。但是,你再也不能确切地知道约束对你的每个观点做了什么。 3. constraintsWithVisualFormat。与第一个相同,但更简单。唯一不利的一面是,如果你打算按比例估算你的观点,那么它就没有这样的能力。
我想让你测试3号只是因为你可以更多的“可视化”constraintsWithVisualFormat表示法。但在你开始打开Visual Format language参考指南自己。
首先,添加一个新的swift文件。将其命名为KeyBoardView并将以下代码复制到其中。
class KeyboardView: UIView {
var redKey : UIView!
var orangeKey : UIView!
var yellowKey : UIView!
var greenKey : UIView!
var lightBlueKey : UIView!
var darkBlueKey : UIView!
var purpleKey : UIView!
var blackKey1 : UIView!
var blackKey2 : UIView!
var blackKey3 : UIView!
var blackKey4 : UIView!
var blackKey5 : UIView!
override init(frame: CGRect) {
super.init(frame: frame)
self.backgroundColor = UIColor.clearColor()
setup()
}
required init(coder aDecoder: NSCoder) {
fatalError("This class does not support NSCoding")
}
func setup() {
redKey = UIView()
redKey.backgroundColor = UIColor.redColor()
redKey.translatesAutoresizingMaskIntoConstraints = false
self.insertSubview(redKey!, atIndex: 10)
orangeKey = UIView()
orangeKey.backgroundColor = UIColor.orangeColor()
orangeKey.translatesAutoresizingMaskIntoConstraints = false
self.insertSubview(orangeKey!, atIndex: 10)
yellowKey = UIView()
yellowKey.backgroundColor = UIColor.yellowColor()
yellowKey.translatesAutoresizingMaskIntoConstraints = false
self.insertSubview(yellowKey, atIndex: 10)
greenKey = UIView()
greenKey.backgroundColor = UIColor.greenColor()
greenKey.translatesAutoresizingMaskIntoConstraints = false
self.insertSubview(greenKey, atIndex: 10)
lightBlueKey = UIView()
lightBlueKey.backgroundColor = UIColor.blueColor()
lightBlueKey.alpha = 0.5
lightBlueKey.translatesAutoresizingMaskIntoConstraints = false
self.insertSubview(lightBlueKey, atIndex: 10)
darkBlueKey = UIView()
darkBlueKey.backgroundColor = UIColor.blueColor()
darkBlueKey.translatesAutoresizingMaskIntoConstraints = false
self.insertSubview(darkBlueKey, atIndex: 10)
purpleKey = UIView()
purpleKey.backgroundColor = UIColor.purpleColor()
purpleKey.translatesAutoresizingMaskIntoConstraints = false
self.insertSubview(purpleKey, atIndex: 10)
blackKey1 = UIView()
blackKey1.backgroundColor = UIColor.blackColor()
blackKey1.translatesAutoresizingMaskIntoConstraints = false
self.insertSubview(blackKey1, atIndex: 11)
blackKey2 = UIView()
blackKey2.backgroundColor = UIColor.blackColor()
blackKey2.translatesAutoresizingMaskIntoConstraints = false
self.insertSubview(blackKey2, atIndex: 11)
blackKey3 = UIView()
blackKey3.backgroundColor = UIColor.blackColor()
blackKey3.translatesAutoresizingMaskIntoConstraints = false
self.insertSubview(blackKey3, atIndex: 11)
blackKey4 = UIView()
blackKey4.backgroundColor = UIColor.blackColor()
blackKey4.translatesAutoresizingMaskIntoConstraints = false
self.insertSubview(blackKey4, atIndex: 11)
blackKey5 = UIView()
blackKey5.backgroundColor = UIColor.blackColor()
blackKey5.translatesAutoresizingMaskIntoConstraints = false
self.insertSubview(blackKey5, atIndex: 11)
let views = [
"redKey" : redKey,
"orangeKey" : orangeKey,
"yellowKey" : yellowKey,
"greenKey" : greenKey,
"lightBlueKey" : lightBlueKey,
"darkBlueKey" : darkBlueKey,
"purpleKey" : purpleKey,
"blackKey1" : blackKey1,
"blackKey2" : blackKey2,
"blackKey3" : blackKey3,
"blackKey4" : blackKey4,
"blackKey5" : blackKey5,
]
let colorKeySpan = self.bounds.width/7
let blackKeyWidth = self.bounds.width/12
let blackKeyHeight = self.bounds.height/2.5
let scaleGap = self.bounds.width/6
let metrics = [
"colorKeySpan" : colorKeySpan,
"blackKeyWidth" : blackKeyWidth,
"blackKeyHeight" : blackKeyHeight,
"scaleGap" : scaleGap,
]
let redKeyVConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[redKey]-0-|", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
let redKeyHConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[redKey(colorKeySpan)]-0-[orangeKey]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
self.addConstraints(redKeyVConstraint)
self.addConstraints(redKeyHConstraint)
let orangeKeyVConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[orangeKey]-0-|", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
let orangeKeyHConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:[orangeKey(colorKeySpan)]-0-[yellowKey]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
self.addConstraints(orangeKeyVConstraint)
self.addConstraints(orangeKeyHConstraint)
let yellowKeyVConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[yellowKey]-0-|", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
let yellowKeyHConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:[yellowKey(colorKeySpan)]-0-[greenKey]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
self.addConstraints(yellowKeyVConstraint)
self.addConstraints(yellowKeyHConstraint)
let greenKeyVConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[greenKey]-0-|", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
let greenKeyHConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:[greenKey(colorKeySpan)]-0-[lightBlueKey]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
self.addConstraints(greenKeyVConstraint)
self.addConstraints(greenKeyHConstraint)
let lightBlueKeyVConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[lightBlueKey]-0-|", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
let lightBlueKeyHConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:[lightBlueKey(colorKeySpan)]-0-[darkBlueKey]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
self.addConstraints(lightBlueKeyVConstraint)
self.addConstraints(lightBlueKeyHConstraint)
let darkBlueKeyVConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[darkBlueKey]-0-|", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
let darkBlueKeyHConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:[darkBlueKey(colorKeySpan)]-0-[purpleKey]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
self.addConstraints(darkBlueKeyVConstraint)
self.addConstraints(darkBlueKeyHConstraint)
let purpleKeyVConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[purpleKey]-0-|", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
let purpleKeyHConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:[purpleKey(colorKeySpan)]-0-|", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
self.addConstraints(purpleKeyVConstraint)
self.addConstraints(purpleKeyHConstraint)
let blackKey1VConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[blackKey1(blackKeyHeight)]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
let blackKey1HConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:|-blackKeyWidth-[blackKey1(blackKeyWidth)]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
self.addConstraints(blackKey1VConstraint)
self.addConstraints(blackKey1HConstraint)
let blackKey2VConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[blackKey2(blackKeyHeight)]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
let blackKey2HConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:[blackKey1]-blackKeyWidth-[blackKey2(blackKeyWidth)]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
self.addConstraints(blackKey2VConstraint)
self.addConstraints(blackKey2HConstraint)
let blackKey3VConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[blackKey3(blackKeyHeight)]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
let blackKey3HConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:[blackKey2]-scaleGap-[blackKey3(blackKeyWidth)]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
self.addConstraints(blackKey3VConstraint)
self.addConstraints(blackKey3HConstraint)
let blackKey4VConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[blackKey4(blackKeyHeight)]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
let blackKey4HConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:[blackKey3]-blackKeyWidth-[blackKey4(blackKeyWidth)]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
self.addConstraints(blackKey4VConstraint)
self.addConstraints(blackKey4HConstraint)
let blackKey5VConstraint = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[blackKey5(blackKeyHeight)]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
let blackKey5HConstraint = NSLayoutConstraint.constraintsWithVisualFormat("H:[blackKey4]-blackKeyWidth-[blackKey5(blackKeyWidth)]", options: NSLayoutFormatOptions(rawValue: 0), metrics: metrics, views: views)
self.addConstraints(blackKey5VConstraint)
self.addConstraints(blackKey5HConstraint)
}
}
记得导入的UIKit和基金会在文件的顶部。
然后在viewDidLoad方法下方添加以下代码到你的ViewController:
let keyboardView = KeyboardView(frame: UIScreen.mainScreen().bounds)
self.view.addSubview(keyView
您可以更改框架,以符合您的需求。
我们正在做的是将一个自定义UIView添加到接口。你可以在没有自定义UIView的情况下在你的ViewController上完成所有约束设置,只需在你的ViewController类中添加KeyboardView类的属性和“setup”方法即可。
对于复杂的视图设置喜欢你的我会建议以编程方式进行设置,因为你总是要改变一切,但不是让所有的东西都与界面构建器分离,你将能够精确地移动你想要的值。
通过更改度量值,短划线和括号之间的值来进行实验。然后尝试用符号1重新创建约束条件。
也知道您可以随时自定义和子类化UIKit的元素。
安德烈斯,这工作!现在它没有按照我想要的方式工作,因为它完全消除了我的所有图像。我想我需要微调这个来获得我想要的,但这是我收到的第一个答案,让我走上正轨。非常感谢。 – blaq