用习惯了OC的工具类UIView+Additions,之前写代码的时候一般直接写view.top或者view.height现在没有了就得写成view.frame.origin.y或者view.frame.size.height这..真的让人很奔溃..
本来想找个swift版本的,但是没有找到,所以决定自己写一个.
首先要创建个UIView+Additions类...我以为创建Swift File像Objective-C File文件一样也是可以选择扩展类的,会自动生成中间的+号,事实证明我想多了..这个+加应该是只能自己打上去了..
就是选这个,点完之后不要怀疑人生,取个名字创建就可以了
创建完也不要怀疑人生,里面就是很干净的...
下面就是代码了,其实都是非常简单的set get方法, 但是在开发的时候可以节省很多时间,而且代码也不会看着那么的肿胀...
import Foundation
import UIKit
extension UIView {
public var left: CGFloat{
get{
return self.frame.origin.x
}
set{
var frame = self.frame
frame.origin.x = newValue
self.frame = frame
}
}
public var top: CGFloat{
get{
return self.frame.origin.y
}
set{
var frame = self.frame
frame.origin.y = newValue
self.frame = frame
}
}
public var right: CGFloat{
get{
return self.frame.origin.x + self.frame.size.width;
}
set{
var frame = self.frame
frame.origin.x = newValue - frame.size.width;
self.frame = frame
}
}
public var bottom: CGFloat{
get{
return self.frame.origin.y + self.frame.size.height;
}
set{
var frame = self.frame
frame.origin.y = newValue - frame.size.height;
self.frame = frame
}
}
public var centerX: CGFloat{
get{
return self.center.x;
}
set{
var center = self.center
center.x = newValue
self.center = center
}
}
public var centerY: CGFloat{
get{
return self.center.y;
}
set{
var center = self.center
center.y = newValue
self.center = center
}
}
public var width: CGFloat{
get{
return self.frame.size.width;
}
set{
var frame = self.frame
frame.size.width = newValue;
self.frame = frame
}
}
public var height: CGFloat{
get{
return self.frame.size.height;
}
set{
var frame = self.frame
frame.size.height = newValue;
self.frame = frame
}
}
public var origin: CGPoint{
get{
return self.frame.origin
}
set{
var frame = self.frame
frame.origin = newValue;
self.frame = frame
}
}
public var size: CGSize{
get{
return self.frame.size
}
set{
var frame = self.frame
frame.size = newValue;
self.frame = frame
}
}
func removeAllSubviews(){
while self.subviews.count > 0 {
let subView = self.subviews.first
subView?.removeFromSuperview()
}
}
}
最后,如果你的view是使用SnapKit设置的约束,那同一个view就尽量都用SnapKit,不然也是容易出错的,因为使用SnapKit约束后并不能立刻反应到frame上,这个问题在oc中使用过Masory应该也都知道.
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