- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor whiteColor];
// 用户偏好设置 存储在本地 比如程序是否第一次加载
// NSUserDefaults *user = [NSUserDefaults standardUserDefaults];
// if (![user boolForKey:@"aa"]) {
[self setupFirstLanchView];
// [user setBool:YES forKey:@"aa"];
// //立即同步
// [user synchronize];
// }
/**
* UIPageControl
表示所有的页数,表示当前正处于第几页,点击切换页数
*
*/
}
//创建程序第一次加载要显示的视图
-(void)setupFirstLanchView{
[self setupScrollView];
[self setUpPageControl];
}
-(void)setupScrollView{
UIScrollView *scrollView = [[UIScrollView alloc]initWithFrame:[UIScreen mainScreen].bounds];
scrollView.pagingEnabled = YES;
scrollView.showsVerticalScrollIndicator = NO;
scrollView.showsHorizontalScrollIndicator = NO;
scrollView.bounces = NO;
scrollView.delegate = self;
scrollView.contentSize = CGSizeMake(320 * 6, [UIScreen mainScreen].bounds.size.height) ;
scrollView.tag = 100;
[self.view addSubview:scrollView];
[scrollView release];
for (int i = 0 ; i < 6; i ++) {
UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(320 * i, 0, 320, [UIScreen mainScreen].bounds.size.height)];
imageView.image = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle]pathForResource:[NSString stringWithFormat:@"v6_guide_%d",i + 1] ofType:@"png"]];
[scrollView addSubview:imageView];
[imageView release];
}
}
-(void)setUpPageControl{
UIPageControl *pagecontrol = [[UIPageControl alloc]initWithFrame:CGRectMake(10, [UIScreen mainScreen].bounds.size.height - 40, 300, 20)];
//页数
pagecontrol.tag = 101;
pagecontrol.numberOfPages = 6;
// //未选中圆点颜色
pagecontrol.pageIndicatorTintColor = [UIColor greenColor];
// //设置选中点的颜色
pagecontrol.currentPageIndicatorTintColor = [UIColor redColor];
//设置当前显示页 从零开始
pagecontrol.currentPage = 0;
// 添加响应事件
[pagecontrol addTarget:self action:@selector(handlePageControl:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:pagecontrol];
[pagecontrol release];
}
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
// 当结束拖拽时触发
NSLog(@"%s",__FUNCTION__);
UIPageControl *page = (UIPageControl *) [self.view viewWithTag:101];
page.currentPage = scrollView.contentOffset.x/320;
NSLog(@"%f",scrollView.contentOffset.x);
NSLog(@"%ld",(long)page.currentPage);
}
-(void)handlePageControl:(UIPageControl *)pageControl{
NSLog(@"%ld",(long)pageControl.currentPage);
// 切换pageControl对应切换scrollView
UIScrollView *scrollView = (UIScrollView *)[self.view viewWithTag:100];
[scrollView setContentOffset:CGPointMake(320*pageControl.currentPage, 0) animated:YES];
NSLog(@"%f",scrollView.contentOffset.x);
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}