轮播图

////  ViewController.m//  lunbotu////  Created by lanou on 16/7/13.//  Copyright © 2016年 lanou. All rights reserved.//#import "ViewController.h"@interface ViewController ()#define screenWidth [UIScreen mainScreen].bounds.size.width

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

@property(nonatomic,strong)UIScrollView *scrollView;

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

//创建滑动视图

self.scrollView = [[UIScrollView alloc]initWithFrame:[UIScreen mainScreen].bounds];

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

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

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

NSString *imageName = nil;

if(i==5){

imageName = @"1.jpg";}else{imageName = [NSString stringWithFormat:@"%ld.jpg",i+1 ];}

//加载响应图片

UIImage *image = [UIImage imageNamed:imageName];

//设置图片

imageView.image = image;

//将Imageview添加到视图上

[self.scrollView addSubview:imageView];

}

//添加滑动视图到屏幕上

[self.view addSubview:self.scrollView];

//设置滑动视图的滑动区域

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

//整屏翻转

self.scrollView.pagingEnabled = YES;

//边界回弹

self.scrollView.bounces = NO;

//偏移量

self.scrollView.delegate = self;//设置代理，代理是负责监听滑动视图整个滑动的过程

}

//scrollview在滑动视图滑动的时候调用,

- (void)scrollViewDidScroll:(UIScrollView *)scrollView{

//contentOffset  是访问到了滑动视图偏移量，包含了x和y的偏移量  offset是偏移量。

//setContentOffset：anmimate：

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

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

}

@end