添加swift file：UIView+Extension
import UIKit
extension UIView {
// x
var x : CGFloat {
get {
return frame.origin.x
}
set(newVal) {
var tmpFrame : CGRect = frame
tmpFrame.origin.x = newVal
frame = tmpFrame
}
}
// y
var y : CGFloat {
get {
return frame.origin.y
}
set(newVal) {
var tmpFrame : CGRect = frame
tmpFrame.origin.y = newVal
frame = tmpFrame
}
}
// height
var height : CGFloat {
get {
return frame.size.height
}
set(newVal) {
var tmpFrame : CGRect = frame
tmpFrame.size.height = newVal
frame = tmpFrame
}
}
// width
var width : CGFloat {
get {
return frame.size.width
}
set(newVal) {
var tmpFrame : CGRect = frame
tmpFrame.size.width = newVal
frame = tmpFrame
}
}
// left
var left : CGFloat {
get {
return x
}
set(newVal) {
x = newVal
}
}
// right
var right : CGFloat {
get {
return x + width
}
set(newVal) {
x = newVal - width
}
}
// top
var top : CGFloat {
get {
return y
}
set(newVal) {
y = newVal
}
}
// bottom
var bottom : CGFloat {
get {
return y + height
}
set(newVal) {
y = newVal - height
}
}
var centerX : CGFloat {
get {
return center.x
}
set(newVal) {
center = CGPoint(x: newVal, y: center.y)
}
}
var centerY : CGFloat {
get {
return center.y
}
set(newVal) {
center = CGPoint(x: center.x, y: newVal)
}
}
var middleX : CGFloat {
get {
return width /
}
}
var middleY : CGFloat {
get {
return height /
}
}
var middlePoint : CGPoint {
get {
return CGPoint(x: middleX, y: middleY)
}
}
}
简单设置x/y/width/height
import UIKit
extension UIView {
//设置随机背景色
func backgroundColorRandom(){
self.backgroundColor = UIColor(red: CGFloat(CGFloat(random())/CGFloat(RAND_MAX)), green: CGFloat(CGFloat(random())/CGFloat(RAND_MAX)), blue: CGFloat(CGFloat(random())/CGFloat(RAND_MAX)), alpha: )
}
var x : CGFloat!{
get{return self.frame.origin.x
}
set(newX){
var rect : CGRect! = self.frame
rect.origin.x = newX
self.frame = rect
}
}
var y : CGFloat!{
get{
return self.frame.origin.y
}
set(newY){
var rect : CGRect! = self.frame
rect.origin.y = newY
self.frame = rect
}
}
var width : CGFloat!{
get{
return self.frame.size.width
}
set(newW){
var rect : CGRect! = self.frame
rect.size.width = newW
self.frame = rect
}
}
var height : CGFloat!{
get{
return self.frame.size.height
}
set(newH){
var rect : CGRect! = self.frame
rect.size.height = newH
self.frame = rect
}
}
}