//  RootViewController.m

//  LessonUIPageControl
//  Copyright (c) 2014年 Summer summer2014mht@sina.com. All rights reserved.
import"RootViewController.h"
@interfaceRootViewController ()<UIScrollViewDelegate>
@end
@implementation RootViewController

(id)initWithNibName:(NSString )nibNameOrNil bundle:(NSBundle )nibBundleOrNil

{

self = [super initWithNibName:nibNameOrNilbundle:nibBundleOrNil];

if (self) {

   // Custom initialization

}


returnself;
}

(void)viewDidLoad

{

[superviewDidLoad];


// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColoryellowColor];
//存儲用戶的偏好設置,存儲在本地,比如:程序是否是第一次加載
NSUserDefaults *userDefaults = [NSUserDefaultsstandardUserDefaults];

if (![userDefaults boolForKey:@"aa"]) {

    [selfsetupFirstLanchView];

    [userDefaultssetBool:YESforKey:@"aa"];

    //立即同步

    [userDefaultssynchronize];

}


}
//創建程序第一次加載要顯示的視圖

(void)setupFirstLanchView

{

[selfsetupScrollView];

[selfsetupPageControl];


}

(void)setupScrollView

{
UIScrollView *scrollView = [[UIScrollViewalloc]initWithFrame:[UIScreenmainScreen].bounds];

scrollView.delegate =self;

[self.viewaddSubview:scrollView];


//關閉水平方向上的滾動條

scrollView.showsHorizontalScrollIndicator =NO;


//是否可以整屏滑動

scrollView.pagingEnabled =YES;

scrollView.tag =200;

[scrollViewrelease];

scrollView.contentSize =CGSizeMake(320 *6, [UIScreen mainScreen].bounds.size.height);

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

    UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(320 * i,0,320, [UIScreenmainScreen].bounds.size.height)];

    imageView.image = [UIImageimageWithContentsOfFile:[[NSBundlemainBundle]pathForResource:[NSStringstringWithFormat:@"v6_guide_%d", i +1]ofType:@"png"]];

    [scrollViewaddSubview:imageView];

    [imageViewrelease];

}


}

(void)setupPageControl

{

/**

 *  UIPageControl

 1.表示頁數

 2.表示當前正處于第幾頁

 3.點擊切換頁數

 */

UIPageControl *pageControl = [[UIPageControl alloc] initWithFrame:CGRectMake(10, [UIScreenmainScreen].bounds.size.height -40, 300, 20)];

pageControl.tag =100;


//設置表示的頁數

pageControl.numberOfPages =6;


//設置選中的頁數

pageControl.currentPage =0;


//設置未選中點的顏色

pageControl.pageIndicatorTintColor = [UIColorgrayColor];


//設置選中點的顏色

pageControl.currentPageIndicatorTintColor = [UIColorblackColor];


//添加響應事件

[pageControladdTarget:selfaction:@selector(handlePageControl:)forControlEvents:UIControlEventValueChanged];

[self.viewaddSubview:pageControl];

[pageControlrelease];


}

(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView

{

UIPageControl *pagControl = (UIPageControl *)[self.view viewWithTag:100];

pagControl.currentPage = scrollView.contentOffset.x / 320;


}

(void)handlePageControl:(UIPageControl *)pageControl

{
//切換pageControl .對應切換scrollView不同的界面

UIScrollView *scrollView = (UIScrollView *)[self.viewviewWithTag:200];

//

[scrollViewsetContentOffset:CGPointMake(320 * pageControl.currentPage,0)animated:YES];


}

(void)didReceiveMemoryWarning

{

[superdidReceiveMemoryWarning];


// Dispose of any resources that can be recreated.
}
/*
pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation

(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender

{

// Get the new view controller using [segue destinationViewController].

// Pass the selected object to the new view controller.


}
*/</pre>