使用系統自帶的AlertView時候難免需要實現代理方法，不如使用block方便，這里通過UIView自定義一個AlertView，可以無按鈕，一個按鈕，兩個按鈕三種形式
效果
下面先看一下效果圖吧
image
image
image
使用
LYAlertView.show("title", "message")
LYAlertView.show("title", "message", "btnTitle", {
//點擊按鈕
})
LYAlertView.show("title", "message", "leftTitle", "rightTitle", {
//右按鈕
}, {
//左按鈕
})
源碼
下面直接將代碼展示出來，你可以選擇借鑒或者直接復制下面代碼，或者使用LYTools
//
// LYAlertView.swift
// qixiaofu
// _
// | | /\ /\
// | | \ \_/ /
// | | \_~_/
// | | / \
// | |__/\ [ ]
// |_|__,/ \_/
//
// Created by ly on 2017/6/29.
// Copyright ? 2017年 qixiaofu. All rights reserved.
//
import UIKit
import QuartzCore
let KTitltOringy:CGFloat = 15.0
let KTitltHeight:CGFloat = 25.0
let KContentOringy:CGFloat = 30.0
let KBetweenLableOffset:CGFloat = 20.0
let KAlertWidth:CGFloat = 245.0
let KAlertHeight:CGFloat = 160.0
typealias leftBlock = () ->()
typealias rightBlock = ()->()
typealias DelaydismissBlock = ()->()
class LYAlertView: UIView {
var leftblock : leftBlock?
var rightblock : rightBlock?
var dismissblock : DelaydismissBlock?
var alertTitleLabel : UILabel?
var alertContentLabel : UILabel?
var leftBtn : UIButton?
var rightBtn : UIButton?
var backImageView:UIView?
var delayTime:Int64 = 0
override init(frame: CGRect) {
super.init(frame: frame)
self.backgroundColor = UIColor.black.withAlphaComponent(0.3)
self.addTapActionBlock {
if (self.dismissblock != nil){
self.dismissblock!()
}
self.removeFromSuperview()
}
}
//沒有按鈕
func initBody(title:String,message:String,DismissDelay:Int64)
{
self.delayTime = DismissDelay
self.initTwoBtn(title: title, message: message, cancelButtonTitle: "", otherButtonTitle: "")
}
//一個按鈕
func initOneBtn(title:String,message:String,ButtonTitle:String)
{
self.initTwoBtn(title: title, message: message, cancelButtonTitle: "", otherButtonTitle: ButtonTitle)
}
//兩個按鈕
func initTwoBtn(title:String,message:String,cancelButtonTitle:String,otherButtonTitle:String) {
//super.init(frame: CGRectZero)
backImageView = UIImageView(frame: CGRect(x:0, y:0, width:KAlertWidth, height:KAlertHeight))
backImageView?.center = self.center
backImageView?.backgroundColor = UIColor.RGBS(s: 250)
backImageView?.layer.cornerRadius = 15.0
backImageView?.isUserInteractionEnabled = true
self.addSubview(backImageView!)
alertTitleLabel = UILabel(frame: CGRect(x:0, y:KTitltOringy, width:KAlertWidth, height:KTitltHeight))
alertTitleLabel!.font = UIFont.boldSystemFont(ofSize: 20.0)
alertTitleLabel!.textColor = UIColor(red:56.0/255.0,green:64.0/255.0,blue:71.0/255.0,alpha:1)
backImageView?.addSubview(alertTitleLabel!)
let contentLabelWidth = KAlertWidth - 16
alertContentLabel = UILabel(frame:CGRect(x:(KAlertWidth - contentLabelWidth) * 0.5, y:alertTitleLabel!.frame.maxY, width:contentLabelWidth, height:60))
alertContentLabel!.numberOfLines = 0
alertContentLabel!.textAlignment = NSTextAlignment.center
alertTitleLabel!.textAlignment = NSTextAlignment.center
alertContentLabel!.textColor = UIColor(red:127.0/255.0,green:127.0/255.0,blue:127.0/255.0,alpha:1)
alertContentLabel!.font = UIFont.systemFont(ofSize: 15.0)
backImageView?.addSubview(alertContentLabel!)
alertTitleLabel!.text = title as String
alertContentLabel!.text = message as String
let KSingleButtonWidth:CGFloat = 160.0
let kCoupleButtonWidth:CGFloat = 107.0
let kButtonHeight:CGFloat = 40.0
let kButtonBottomOffset:CGFloat = 10.0
//沒有按鈕
if cancelButtonTitle.isEmpty && otherButtonTitle.isEmpty{
alertTitleLabel?.frame.origin.y = KTitltOringy+20
alertContentLabel?.frame.size.height = 100
if(self.delayTime==0){
self.delayTime = 2
}
DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + Double((Int64)(UInt64(self.delayTime) * NSEC_PER_SEC)) / Double(NSEC_PER_SEC), execute: {
if (self.dismissblock != nil){
self.dismissblock!()
}
self.removeFromSuperview()
})
return
}else if !cancelButtonTitle.isEmpty && !otherButtonTitle.isEmpty {
//兩個按鈕
let leftBtnFrame = CGRect(x:(KAlertWidth - 2 * kCoupleButtonWidth - kButtonBottomOffset) * 0.5, y:KAlertHeight - kButtonBottomOffset/2.0 - kButtonHeight, width:kCoupleButtonWidth, height:kButtonHeight);
let rightBtnFrame = CGRect(x:leftBtnFrame.maxX + kButtonBottomOffset, y:KAlertHeight - kButtonBottomOffset/2.0 - kButtonHeight, width:kCoupleButtonWidth, height:kButtonHeight);
leftBtn = UIButton(frame:leftBtnFrame);
rightBtn = UIButton(frame:rightBtnFrame)
// rightBtn!.setBackgroundImage( UIImage(named: "button_orange_normal") ,for:UIControlState.normal)
// rightBtn!.setBackgroundImage( UIImage(named: "button_orange_click") ,for:UIControlState.selected)
rightBtn!.setTitle(otherButtonTitle as String, for: UIControlState.normal)
rightBtn!.titleLabel!.font = UIFont.boldSystemFont(ofSize: 14)
rightBtn!.setTitleColor(UIColor.RGBS(s: 33),for:UIControlState.normal)
rightBtn!.addTarget(self, action: #selector(LYAlertView.rightBtnClicked), for: UIControlEvents.touchUpInside)
rightBtn!.layer.masksToBounds = true
rightBtn!.layer.cornerRadius = 3.0
backImageView?.addSubview(rightBtn!)
//按鈕上面的線
let topLine = UIView.init(frame: CGRect(x:0, y:KAlertHeight - kButtonBottomOffset - kButtonHeight, width:KAlertWidth, height:1.5))
topLine.backgroundColor = UIColor.RGBS(s: 240)
backImageView?.addSubview(topLine)
//按鈕之間的線
let bottomLine = UIView.init(frame: CGRect(x:leftBtnFrame.maxX + kButtonBottomOffset/2.0, y:KAlertHeight - kButtonBottomOffset - kButtonHeight, width:1.5, height:kButtonHeight + kButtonBottomOffset))
bottomLine.backgroundColor = UIColor.RGBS(s: 240)
backImageView?.addSubview(bottomLine)
}else{
//按鈕上面的線
let topLine = UIView.init(frame: CGRect(x:0, y:KAlertHeight - kButtonBottomOffset - kButtonHeight, width:KAlertWidth, height:1.5))
topLine.backgroundColor = UIColor.RGBS(s: 240)
backImageView?.addSubview(topLine)
//一個按鈕
leftBtn = UIButton(frame:CGRect(x:(KAlertWidth-KSingleButtonWidth)/2, y:KAlertHeight - kButtonBottomOffset/2.0 - kButtonHeight, width:KSingleButtonWidth, height:kButtonHeight))
}
// leftBtn?.setBackgroundImage(UIImage(named: "button_white_normal"), for: UIControlState.normal)
// leftBtn?.setBackgroundImage(UIImage(named: "button_white_clicked"), for: UIControlState.selected)
leftBtn!.setTitle(cancelButtonTitle as String, for: UIControlState.normal)
leftBtn!.titleLabel!.font = UIFont.boldSystemFont(ofSize: 14)
leftBtn!.setTitleColor(UIColor.RGBS(s: 33),for:UIControlState.normal)
leftBtn!.addTarget(self, action: #selector(LYAlertView.leftBtnClicked), for: UIControlEvents.touchUpInside)
leftBtn!.layer.masksToBounds = true
backImageView?.addSubview(leftBtn!)
leftBtn!.layer.masksToBounds = true
leftBtn!.layer.cornerRadius = 3.0
}
func leftBtnClicked(){
if (self.leftblock != nil){
self.leftblock!()
}
self.dismiss()
}
func rightBtnClicked(){
if (self.rightblock != nil){
self.rightblock!()
}
self.dismiss()
}
//MARK: - 顯示
//2個按鈕
class func show( _ title:String, _ message:String, _ leftTitle:String, _ rightTitle:String, _ rightClick:rightBlock? = nil, _ leftClick:leftBlock? = nil, _ dismissBlock:DelaydismissBlock? = nil)->Void{
let alert = LYAlertView.init(frame: CGRect(x:0, y:0, width:UIScreen.main.bounds.width, height:UIScreen.main.bounds.height))
alert.initTwoBtn(title: title, message: message, cancelButtonTitle: leftTitle, otherButtonTitle: rightTitle)
alert.occur(animation: true)
alert.leftblock = leftClick
alert.rightblock = rightClick
alert.dismissblock = dismissBlock
}
//1個按鈕
class func show( _ title:String, _ message:String, _ leftTitle:String, _ leftClick:leftBlock? = nil, _ dismissBlock:DelaydismissBlock? = nil)->Void{
self.show(title, message, leftTitle, "", nil, leftClick, dismissBlock)
}
//0個按鈕
class func show( _ title:String, _ message:String, _ dismissBlock:DelaydismissBlock? = nil)->Void{
self.show(title, message, "", "", nil, nil, dismissBlock)
}
func occur(animation:Bool) -> Void{
UIApplication.shared.keyWindow?.addSubview(self)
UIApplication.shared.keyWindow?.bringSubview(toFront: self)
if animation {
UIView.animate(withDuration: 0.1, delay: 0, options:
UIViewAnimationOptions.transitionCrossDissolve, animations: { () -> Void in
self.alpha = 1.0
self.backImageView?.layer.setAffineTransform(CGAffineTransform(scaleX: 0.9, y: 0.9))
}) { (Bool) -> Void in
UIView.animate(withDuration: 0.1, delay: 0, options: UIViewAnimationOptions.transitionCrossDissolve, animations: { () -> Void in
self.backImageView?.layer.setAffineTransform(CGAffineTransform(scaleX: 1.1, y: 1.1))
}) { (Bool) -> Void in
UIView.animate(withDuration: 0.1, delay: 0, options: UIViewAnimationOptions.transitionCrossDissolve, animations: { () -> Void in
self.backImageView?.layer.setAffineTransform(CGAffineTransform(scaleX: 0.9, y: 0.9))
}) { (Bool) -> Void in
self.backImageView?.layer.setAffineTransform(CGAffineTransform(scaleX: 1.0, y: 1.0))
}
}
}
}
}
func dismiss() -> Void{
UIView.animate(withDuration: 0.2, delay: 0, options: UIViewAnimationOptions.transitionCrossDissolve, animations: { () -> Void in
self.alpha = 0
}) { (Bool) -> Void in
self.removeFromSuperview()
}
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
