#import "SaleView.h"
#import "UIImageView+AFNetworking.h"
#define SALEVIEWWIDTH self.frame.size.width
#define SALEVIEWHIGHT self.frame.size.height
@interface SaleView()<UIScrollViewDelegate>
{
//滚动视图
UIScrollView * scrollView;
//页码指示器
UIPageControl * pageControl;
NSString*imageStr;
UIImageView*imageView;
int timecount;
}
@end
@implementation SaleView
-(void)prepareScrollView;
{
scrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 0,SALEVIEWWIDTH,SALEVIEWHIGHT)];
//设置默认的第一张图片imageStr=self.dataArr[0][@"ImgPath"];
imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0,0, SALEVIEWWIDTH,SALEVIEWHIGHT)];
[imageView setImageWithURL:[NSURL URLWithString:imageStr] placeholderImage:nil];
[scrollView addSubview:imageView];
//设置滚动区域
scrollView.contentSize = CGSizeMake(self.frame.size.width,SALEVIEWHIGHT);
//设置分页,默认为NO
scrollView.pagingEnabled = YES;
//关闭回弹
scrollView.bounces = NO;
//关闭滚动条
scrollView.showsHorizontalScrollIndicator = NO;
scrollView.showsVerticalScrollIndicator=NO;
//设置代理
scrollView.delegate = self;
//将滚动视图加到视图上
[self addSubview:scrollView];
//这个控件叫做面码指示器,用来提示页码
pageControl = [[UIPageControl alloc]initWithFrame:CGRectMake(self.frame.size.width/2, 120,self.frame.size.width/2-80,30)];
//设置总页码数,也就告诉指示器有多少页,显示多少个点
pageControl.numberOfPages =self.dataArr.count;
//设置当前页
pageControl.currentPage =0;
//设置指示器的颜色
pageControl.pageIndicatorTintColor = [UIColor grayColor];
pageControl.currentPageIndicatorTintColor = [UIColor redColor];
//给页码指示器加响应事件
[pageControl addTarget:self action:@selector(pageTurn:) forControlEvents:UIControlEventValueChanged];
[self addSubview:pageControl];
//使用NSTimer实现定时触发滚动控件滚动的动作。
timecount=0;
[NSTimer scheduledTimerWithTimeInterval:3 target:self selector:@selector(scrollTimer) userInfo:nil repeats:YES];
}
//滚图的动画效果
-(void)pageTurn:(UIPageControl *)aPageControl{
long int whichPage = aPageControl.currentPage;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3f];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[scrollView setContentOffset:CGPointMake(self.frame.size.width * whichPage, 0.0f) animated:YES];
[UIView commitAnimations];
}
//定时滚动
-(void)scrollTimer
{
self.flag=timecount+1;
timecount++;
if ( timecount==self.dataArr.count) {
timecount = 0;
}
imageStr=_dataArr[timecount][@"ImgPath"];
[imageView setImageWithURL:[NSURL URLWithString:imageStr] placeholderImage:nil];
[scrollView reloadInputViews];
pageControl.currentPage=timecount;
}
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