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// 继承自UIButton
public class InDicatorButton: UIButton {
}
// MARK: - 构造方法
required public init?(coder decoder: NSCoder) {
super.init(coder: decoder)
// 初始化
setup()
}
init() {
super.init(frame: CGRectZero)
// 初始化
setup()
}
// MARK: - 公开属性
/// 标识是否是向下切换title
var upToDown: Bool = false
/// borderColor
var borderColor: UIColor = UIColor.clearColor() {
didSet {
layer.borderColor = borderColor.CGColor
}
}
/// borderWidth
var borderWidth: CGFloat = 0 {
didSet {
layer.borderWidth = borderWidth
}
}
/// cornerRadius
var cornerRadius: CGFloat = 0 {
didSet {
layer.cornerRadius = cornerRadius
}
}
public override var enabled: Bool {
didSet {
if oldValue != enabled {
if oldValue {
// 动画切换title,显示菊花
lastDisabledtitle = titleForState(.Disabled)
ib_loadingWithtitle(lastDisabledtitlE)
settitle("",forState: .Disabled)
} else {
// 重置按钮,隐藏菊花
ib_resetToNormalState()
settitle(lastDisabledtitle,forState: .Disabled)
}
}
}
}
// MARK: - 私有属性
lazy var BACkView = UIView()
lazy var lblmessage = UILabel()
lazy var inDicatorView = UIActivityInDicatorView()
private var lasttitle: String?
private var lastDisabledtitle: String?
private let margin: CGFloat = 8
private var transformY: CGFloat {
get {
return self.h * (upToDown ? (-1) : 1)
}
}
// MARK: - 私有方法
// 初始化
private func setup() {
layer.masksToBounds = true
// 初始化BACkView及其子视图
lblmessage.textColor = titleLabel?.textColor
lblmessage.font = titleLabel?.font
BACkView.addSubview(lblmessagE)
inDicatorView.activityInDicatorViewStyle = .White
inDicatorView.hidesWhenStopped = true
inDicatorView.sizeToFit()
BACkView.addSubview(inDicatorView)
// 要先设置高度 再设置center
BACkView.h = self.h
BACkView.center = CGPointMake(self.w * 0.5,self.h * 0.5)
BACkView.BACkgroundColor = UIColor.clearColor()
BACkView.alpha = 0
addSubview(BACkView)
lasttitle = currenttitle
}
// 开始转菊花
private func ib_loadingWithtitle(title: String?) {
let color = self.titleColorForState(.Disabled)
let shadowColor = self.titleShadowColorForState(.Disabled)
lblmessage.text = title
lblmessage.textColor = color
lblmessage.shadowColor = shadowColor
lblmessage.sizeToFit()
// 计算lblmessage 和 inDicatorView 的位置
inDicatorView.centerY = BACkView.centerY
lblmessage.centerY = inDicatorView.centerY
lblmessage.left = inDicatorView.right + margin
BACkView.right = lblmessage.right
BACkView.w = inDicatorView.w + margin + lblmessage.w
BACkView.left = (self.w - BACkView.w ) * 0.5
inDicatorView.startAnimaTing()
if title == lasttitle {
// 如果title和旧title相同 不需要显示动画滚动
} else {
BACkView.transform=CGAffineTransformMakeTranslation(0,transformY)
}
UIView.animateWithDuration(0.5) {
self.titleLabel!.alpha = 0
self.BACkView.alpha = 1
self.BACkView.transform = CGAffineTransformIdentity
}
}
// 重置按钮
private func ib_resetToNormalState() {
UIView.animateWithDuration(0.5,animations: {
self.titleLabel!.alpha = 1
self.BACkView.alpha = 0
if self.currenttitle == self.lastDisabledtitle {
// 如果title和旧title相同 不需要显示动画滚动
} else {
self.BACkView.transform = CGAffineTransformMakeTranslation(0,self.transformY)
}
}) { (finished) in
self.BACkView.transform = CGAffineTransformIdentity
self.inDicatorView.stopAnimaTing()
}
}
override func viewDidLoad() {
super.viewDidLoad()
// 设置圆角半径
btnTest.cornerRadius = 3
// 切换title动画方式
btnTest.upToDown = false
self.btnTest.settitle("登录",forState: .Normal)
self.btnTest.settitle("登录中...",forState: .Disabled)
// FIXME: 注意内存泄露!!!
btnTest.rac_signalForControlEvents(.TouchUpInside).subscribeNext { [weak self](sender) in
// 开启动画,转菊花
self?.btnTest.enabled = false
// 5秒后结束动画,隐藏菊花
let delayInSeconds = 5.0
let popTime = dispatch_time(DISPATCH_TIME_Now,Int64(delayInSeconds * Double(NSEC_PER_SEC)))
dispatch_after(popTime,dispatch_get_main_queue()) {
// 隐藏菊花
self?.btnTest.enabled = true
self?.btnTest.settitle("登录成功,页面该跳转了",forState: .Normal)
}
}
}
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