swift头部无线轮播视图

Posted 2020-07-12 zhangxianhongx

//
//  AmonCirHeadView.swift
//  BQPReader
//
//  Created by mac on 16/5/25.
//  Copyright © 2016年 BQP. All rights reserved.
//

import UIKit

class AmonCirHeadView: UIView ,UIScrollViewDelegate{

    var dataArray:NSArray?;
    var _scrollView:UIScrollView?;
//计时器
    var _timer:NSTimer?;
//主要是为了确定scrollview和pagecontroller的显示位置
    var index:Int64?;
    var _pageControl:UIPageControl?;
    override init(frame: CGRect) {
        super.init(frame: frame);
//复制全部代码 插入图片，在此更换图片名即可，当然也可以网络请求图片，这个自己去修改逻辑吧
        dataArray = ["aion01.jpg","aion02.jpg","aion03.jpg"];
//创建scrollview
        _scrollView = UIScrollView(frame: CGRectMake(0, 0, kScreenW,self.bounds.size.height));
        _scrollView?.bouncesZoom = false;
        _scrollView?.bounces = false;
        _scrollView?.showsHorizontalScrollIndicator = false;
        _scrollView?.showsVerticalScrollIndicator = false;
        _scrollView?.pagingEnabled = true;
        _scrollView?.delegate = self;
        self.addSubview(_scrollView!);
        _scrollView?.contentSize = CGSizeMake(self.bounds.size.width * CGFloat((dataArray?.count)!), self.bounds.size.height);
        _scrollView?.backgroundColor = UIColor.redColor();
//创建pageControl
        _pageControl = UIPageControl(frame: CGRectMake(0, self.bounds.size.height - 20, kScreenW, 20));
        self.addSubview(_pageControl!);
        _pageControl!.backgroundColor = UIColor.clearColor();
        _pageControl!.numberOfPages = (dataArray?.count)!;
        _pageControl!.currentPage = 0;
        _pageControl!.pageIndicatorTintColor = UIColor.whiteColor();
        _pageControl!.currentPageIndicatorTintColor = UIColor.orangeColor();
        creatImageView();
        
    }
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    //创建scrollview上的图片控件
    func creatImageView(){
        index = 0;
        var i = 0;
        for imgNmae in dataArray!{
            
            let imgV = UIImageView(frame: CGRectMake(self.bounds.size.width * CGFloat(i), 0, self.bounds.size.width, self.bounds.size.height));
            imgV.image = UIImage(named: imgNmae as! String);
            _scrollView?.addSubview(imgV);
            i = i + 1;
        }
        
 //创建计时器
        _timer = NSTimer.scheduledTimerWithTimeInterval(3, target: self, selector: "timeMethod", userInfo: nil, repeats: true);
//创建runloop设置计时器的运行模式，保证在滑动界面时，计时器也在工作
        NSRunLoop.currentRunLoop().addTimer(_timer!, forMode: NSRunLoopCommonModes);
        
    }
   //计时器调用的方法
    func timeMethod(){
       index = index!+1;
        if NSInteger(index!) >= dataArray?.count{
            index = 0;
        }
        
        UIView.animateWithDuration(0.35) { () -> Void in
            
          self._scrollView!.contentOffset = CGPointMake(CGFloat(self.index!) * kScreenW, self._scrollView!.contentOffset.y);
        };
        _pageControl!.currentPage = NSInteger(index!);
        
    }
    //scrollview的代理
    func scrollViewDidScroll(scrollView: UIScrollView) {
        let x = scrollView.contentOffset.x/kScreenW;
        index = Int64(x);
        _pageControl!.currentPage = NSInteger(x);
        
    }
    
    
    

}