轮播图

//

//  ViewController.m

//轮播图

//

//  Created by lanou on 16/7/13.

//  Copyright©2016年lanou. All rights reserved.

//

#import"ViewController.h"

//

@interfaceViewController()

//宏定义

#define screenWidth [UIScreen mainScreen].bounds.size.width

#define screenHeight [UIScreen mainScreen].bounds.size.height

//滑动视图UIScrollView,自带了可滑动功能

@property(nonatomic,strong)UIScrollView*scrollView;

@end

@implementationViewController

- (void)viewDidLoad {

[superviewDidLoad];

//屏幕宽高

//创建初始化滑动视图

self.scrollView= [[UIScrollViewalloc]initWithFrame:[UIScreenmainScreen].bounds];

for(NSIntegeri =0; i <6; i++) {

//根据i循环创建UIImageView,再添加到滑动视图UIScrollView上面

UIImageView*imageView = [[UIImageViewalloc]initWithFrame:CGRectMake(i*screenWidth,0,screenWidth,screenHeight)];

NSString*imagename =nil;

if(i==5) {

imagename =@"1.jpg";

}else{

imagename = [NSStringstringWithFormat:@"%ld.jpg",i+1];

}

//加载响应的图片

UIImage*image = [UIImageimageNamed:imagename];

//设置图片

imageView.image= image ;

//将imageview添加到滑动视图上面

[self.scrollViewaddSubview:imageView];

//设置滑动视图的滑动区域contentSize

self.scrollView.contentSize=CGSizeMake(6*screenWidth,screenHeight);

//整屏翻转

self.scrollView.pagingEnabled=YES;

//边界回弹

self.scrollView.bounces=NO;

//设置代理，代理是负责监听滑动是要整个过程的

self.scrollView.delegate=self;

}

//添加到滑动视图屏幕上面

[self.viewaddSubview:self.scrollView];

}

//滑动视图做滑动的时候调用

- (void)scrollViewDidScroll:(UIScrollView*)scrollView

{

//contentoffset是访问到了滑动视图的偏移量，包含了x,和y轴的偏移量

//setContentOffset:animated:

NSLog(@"offset.x = %f,offset.y = %f",scrollView.contentOffset.x,scrollView.contentOffset.y);

}

- (void)didReceiveMemoryWarning {

[superdidReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

@end

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