PageView幻灯片

Question

我是新来的，可能需要一些帮助，我正在为ipad制作一个ios应用程序，我希望能够用自定义和/或股票转换动画化页面视图中的页面转换。

通过不同的页面(PageView)动画的正确方法是什么?每个页面中都有全屏照片？类似苹果照片应用程序。我希望能够建立一个基本幻灯片，并通过他们过渡。

所有的帮助都是感激的。

谢谢

编辑:哇，这些反应是快速的，它也有可能有定制动画？

Answer 1

你可以这样创作：-

- (void)viewDidLoad {
    [super viewDidLoad];
    UIScrollView *scr=[[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
    scr.tag = 1;
    scr.autoresizingMask=UIViewAutoresizingNone;
    [self.view addSubview:scr];
    [self setupScrollView:scr];
    UIPageControl *pgCtr = [[UIPageControl alloc] initWithFrame:CGRectMake(0, 264, 480, 36)];
    [pgCtr setTag:12];
    pgCtr.numberOfPages=10;
    pgCtr.autoresizingMask=UIViewAutoresizingNone;
    [self.view addSubview:pgCtr];
}

- (void)setupScrollView:(UIScrollView*)scrMain {
    // we have 10 images here.
    // we will add all images into a scrollView & set the appropriate size.

    for (int i=1; i<=10; i++) {
        // create image
        UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"sti%02i.jpeg",i]];
        // create imageView
        UIImageView *imgV = [[UIImageView alloc] initWithFrame:CGRectMake((i-1)*scrMain.frame.size.width, 0, scrMain.frame.size.width, scrMain.frame.size.height)];
        // set scale to fill
        imgV.contentMode=UIViewContentModeScaleToFill;
        // set image
        [imgV setImage:image];
        // apply tag to access in future
        imgV.tag=i+1;
        // add to scrollView
        [scrMain addSubview:imgV];
    }
    // set the content size to 10 image width
    [scrMain setContentSize:CGSizeMake(scrMain.frame.size.width*10, scrMain.frame.size.height)];
    // enable timer after each 2 seconds for scrolling.
    [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector(scrollingTimer) userInfo:nil repeats:YES];
}

- (void)scrollingTimer {
    // access the scroll view with the tag
    UIScrollView *scrMain = (UIScrollView*) [self.view viewWithTag:1];
    // same way, access pagecontroll access
    UIPageControl *pgCtr = (UIPageControl*) [self.view viewWithTag:12];
    // get the current offset ( which page is being displayed )
    CGFloat contentOffset = scrMain.contentOffset.x;
    // calculate next page to display
    int nextPage = (int)(contentOffset/scrMain.frame.size.width) + 1 ;
    // if page is not 10, display it
    if( nextPage!=10 )  {
        [scrMain scrollRectToVisible:CGRectMake(nextPage*scrMain.frame.size.width, 0, scrMain.frame.size.width, scrMain.frame.size.height) animated:YES];
        pgCtr.currentPage=nextPage;
    // else start sliding form 1 :)
    } else {
        [scrMain scrollRectToVisible:CGRectMake(0, 0, scrMain.frame.size.width, scrMain.frame.size.height) animated:YES];
        pgCtr.currentPage=0;
    }
}

你可以使用：-

SDWebimage

AFNetworking

NSCache和NSCache的使用

用于图像缓存和异步加载映像。

更新：-

这里贝娄是一些图书馆，做一些像图片库，幻灯片放映，检查这个，如果你想，然后使用在你的项目，阅读如何实现。

MWPhotoBrowser for iOS

EGOPhotoViewer for iOS

CXPhotoBrowser for iOS

FGallery for iOS

用于iOS的Nimbus

PTImageAlbumViewController for iOS