引导页

引导页是用户第一次使用app时，引导用户使用的页面，这个界面通常加载到进入界面的上面。
我这个引导页是一个View，这个View加载到进入界面View的上面，当然你也可以加载到window上，但是最好还是加载到View上较好一下，下面直接上代码：

import UIKit

enum GoinTpye {
    case scrollGoin
    case clickGoin
}

typealias JNGuideViewCallback = ()->()
class JNGuideView: UIView ,UIScrollViewDelegate,UIGestureRecognizerDelegate{
    var guideSkipBack:JNGuideViewCallback?
    var goinTpye:GoinTpye = GoinTpye.scrollGoin//进入类型
    
   private let SCREENHEIGHT = UIScreen.mainScreen().bounds.size.height
   private let SCREENWEIGHT = UIScreen.mainScreen().bounds.size.width
   private let isFirstUseApp:String = "isFirstUserApp"//判断是否为第一次登陆的key
   private var pageControl:UIPageControl?
    
    //重写init方法
    override init(frame: CGRect) {
        super.init(frame: frame)
        guideView()
    }
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    func guideView() -> () {
        if(!NSUserDefaults.standardUserDefaults().boolForKey(isFirstUseApp)){//是第一次使用
            NSUserDefaults.standardUserDefaults().setBool(true, forKey: isFirstUseApp)
            //创建guideView子视图
            self.initSubViews()
        }else{
            UIView.animateWithDuration(0, animations: {
            }) { (Bool) in
                self.guideSkipBack!()
            }
        }
    }
    //加载导航页
    func initSubViews() -> () {
        var guideStr:String
        switch SCREENHEIGHT {
        case 480:guideStr = "-4@2x.jpg"
        case 568:guideStr = "-5@2x.jpg"
        case 667:guideStr = "-6@2x.jpg"
        case 736:guideStr = "-6p@3x.jpg"
        default:guideStr = "-4@2x.jpg"
        }
        let guideArray = ["GuidePage01"+guideStr,"GuidePage02"+guideStr] //这里是图片，需要自己添加
        //创建滚动试图
        let scroll:UIScrollView = UIScrollView.init(frame: CGRect(x: 0,y: 0,width:SCREENWEIGHT ,height: SCREENHEIGHT ))
        scroll.showsVerticalScrollIndicator = false
        scroll.showsHorizontalScrollIndicator = false
        scroll.directionalLockEnabled = false
        scroll.pagingEnabled = true
        scroll.bounces = false
//        scroll.contentInset = UIEdgeInsetsMake(0, 0, 0, 0)
        scroll.delegate = self
        
        //创建page视图
        pageControl = UIPageControl.init(frame: CGRect(x:0 ,y: SCREENHEIGHT - 70,width:SCREENWEIGHT,height:50))
        pageControl?.alpha = 0.5
        pageControl?.numberOfPages = guideArray.count
        pageControl?.currentPage = 0
        pageControl?.pageIndicatorTintColor = UIColor.darkGrayColor()
        pageControl?.currentPageIndicatorTintColor = UIColor.redColor()
        
        for index in 0..count {
            var guideImageView:UIImageView = UIImageView.init(frame: CGRect(x: CGFloat(index) * SCREENWEIGHT,y: 0,width: SCREENWEIGHT,height: SCREENHEIGHT))
            guideImageView.userInteractionEnabled = true
            guideImageView.tag = index + 1
            guideImageView.image = UIImage.init(named: guideArray[index])
            scroll.addSubview(guideImageView)
            if (index == guideArray.count - 1) {//证明是最后一张，
                switch goinTpye{
                case .clickGoin://点击进程序
                    var goinBtn:UIButton = UIButton.init(type: UIButtonType.Custom)
                    goinBtn.frame = CGRect(x: (SCREENWEIGHT - 150)/2,y: SCREENHEIGHT - 300,width: 150,height: 100)
                    goinBtn.backgroundColor = UIColor.brownColor()
                    goinBtn.addTarget(self, action: "goin", forControlEvents: UIControlEvents.TouchUpInside)
                    goinBtn.setTitle("进入主界面", forState: UIControlState.Normal)
                    goinBtn.setTitleColor(UIColor.redColor(), forState: UIControlState.Normal)
                    guideImageView.addSubview(goinBtn)
                default://滑动进程序
                    let swip:UISwipeGestureRecognizer = UISwipeGestureRecognizer.init(target: self, action: "goin")
                    swip.direction = UISwipeGestureRecognizerDirection.Left
                    swip.delegate = self
                    guideImageView.addGestureRecognizer(swip)
                }
            }
        }
        scroll.contentSize = CGSize(width: SCREENWEIGHT * CGFloat(guideArray.count),height:0)
        self.addSubview(scroll)
        self.addSubview(pageControl!)
    }
    func goin()->(){
        var imageView:UIImageView = (self.viewWithTag(2) as! UIImageView)
        UIView.animateWithDuration(0.3, animations: {
            imageView.frame = CGRect(x: 0,y: 0,width: self.SCREENWEIGHT,height: self.SCREENHEIGHT)
            }) { (Bool) in
                self.guideSkipBack!()
        }
    }
//MARK:- 滚动协议方法
    func scrollViewDidEndDecelerating(scrollView: UIScrollView) {
        let index = scrollView.contentOffset.x / scrollView.frame.size.width;
        pageControl?.currentPage = Int(index)
    }
//    MARK: - 手势协议方法
    //让多个手势共存
    func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWithGestureRecognizer otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        return true
    }
}

上述代码是滑动进入界面，也可以写点击进入界面，把进入类型换一下就OK了。

进入界面的调用代码如下：

    override func viewDidLoad() {
        super.viewDidLoad()
        initGuideView();
    }
    //添加引导页试图
    func initGuideView() -> () {
        var guideView:JNGuideView = JNGuideView.init(frame:self.view.bounds)
        weak var weakGuideView = guideView
        guideView.guideSkipBack = {
            weakGuideView!.removeFromSuperview()
            weakGuideView = nil
        }
        self.view.addSubview(guideView)
        self.view.bringSubviewToFront(guideView)
    }