iOS如何將圖像的索引從collectionview傳遞到滾動視圖

我正在創建一個程序，如果我在collectionview中單擊縮略圖，應該在另一個視圖收集器中的滾動視圖中打開較大的圖像。爲此我使用了segue。但我做錯了那裏，我怎麼能解決這個問題，iOS如何將圖像的索引從collectionview傳遞到滾動視圖

我賽格瑞的代碼，

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{ 
    if ([[segue identifier] isEqualToString:@"showDetail"]) 
    { 
     NSIndexPath *selectedIndexPath = [[self.gallerycollection indexPathsForSelectedItems] objectAtIndex:0]; 

     // load the image, to prevent it from being cached we use 'initWithContentsOfFile' 
     NSString *imageNameToLoad = [NSString stringWithFormat:@"interior_%d", selectedIndexPath.row]; 
     NSString *pathToImage = [[NSBundle mainBundle] pathForResource:imageNameToLoad ofType:@"jpg"]; 
     UIImage *image = [[UIImage alloc] initWithContentsOfFile:pathToImage]; 

     GalleryImageScrollViewController *gallerydetailViewController = [segue destinationViewController]; 
     gallerydetailViewController.FullScreenImageScroller=image ; 
    } 
}

detailViewController.m

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 


    NSMutableArray *mutablearray = [NSMutableArray array]; 
    data=[MyDatabase new]; 
    slideImages=[data OpenMyDatabase:@"SELECT pic_name_big FROM interior":@"pic_name_big"]; 
    [mutablearray addObjectsFromArray:slideImages]; 
    temparr = [[NSMutableArray alloc]init]; 
    temparr=[NSMutableArray arrayWithArray:mutablearray]; 
    [self putImageViewsInScrollView:[temparr count]]; 
    self.FullScreenImageScroller.delegate=self; 

} 




-(void) putImageViewsInScrollView:(int)numberOfImageViews 
{ 
    for(int i=0 ;i<numberOfImageViews; i++) 
    { 
     fullScreenImageView=[[UIImageView alloc]initWithImage:[UIImage imageNamed:[temparr objectAtIndex:i]]]; 
     fullScreenImageView.frame = CGRectMake((WIDTH_OF_IMAGE * i) , 0, WIDTH_OF_IMAGE, HEIGHT_OF_IMAGE); 
     [self.FullScreenImageScroller addSubview:fullScreenImageView]; 
    } 
    [self.FullScreenImageScroller setContentSize:CGSizeMake(WIDTH_OF_SCROLL_PAGE * ([temparr count]), HEIGHT_OF_IMAGE)]; 
    [self.FullScreenImageScroller setContentOffset:CGPointMake(0, 0)]; 
    [self.FullScreenImageScroller scrollRectToVisible:CGRectMake(WIDTH_OF_IMAGE,0,WIDTH_OF_IMAGE,HEIGHT_OF_IMAGE) animated:NO]; 


}

那我怎麼傳遞滾動視圖控制器（GalleryImageScrollViewController）打開特定縮略圖的圖像？

來源

2013-03-15 user2147631

在viewDidLoad中傳遞圖像名稱到詳細視圖控制器這樣

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { NSArray *indexpaths = [self.collectionView indexPathsForSelectedItems]; DetailViewController *dest = [segue destinationViewController]; dest.imageName = [recipeImages objectAtIndex:[[indexpaths objectAtIndex:0] row]]; // imageName is a property of detail view controller }

然後detailViewController
的

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    self.imageView.image = [UIImage imageNamed:self.imageName]; 
}

Im不使用滾動視圖，只有一個ImageView的作爲副查看視圖

enter image description here

來源

2013-03-15 05:32:04

謝謝隊友。我知道了。但如何將其傳遞給另一個視圖控制器中的滾動視圖。 – user2147631 2013-03-15 05:36:26

您可以使用相同的邏輯。添加一個imageView到scrollView然後設置圖像。 scrollView或沒有關係，你可以設置圖像只在imageView。所以添加imageView到scrollView – 2013-03-15 05:41:51

@ Anil：我做的是，我已經添加了一個圖像瀏覽到滾動視圖來顯示圖像。所以米沒有得到做什麼viewDidLoad detailViewScroller – user2147631 2013-03-15 05:51:59

它非常簡單。只需將所選縮略圖的索引傳遞給GalleryImageScrollViewController（從上面給出的答案中）。

然後，在detailViewController的viewDidLoad方法中使用fetched索引填充imageView中的圖像。

在的viewDidLoad中detailViewController

-(void)viewDidLoad 
    { 
     [super viewDidLoad]; 
     self.imageView.image = [UIImage imageNamed:[[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"interior_%d", indexOfThatImage] ofType:@"png"]]]; 
    }

請注意，文件擴展名是在你的包是正確的。

來源

2013-03-15 07:01:36

iOS如何將圖像的索引從collectionview傳遞到滾動視圖

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