傳遞數據到另一個文件沒有pushViewController

Question

我想從Myfile推送數據到SDWebImageDataSource並推送SDWebImageRootViewController（視圖）。我有一個問題，我無法傳遞數據。我已經使用setImageLink方法，但我在NSInteger方法中獲得imageLink值（null），爲什麼會發生這種情況？我應該用不同的方式嗎？

Myfile.h

@property (nonatomic, retain) NSString *image; 

Myfile.m

- (void)showSDWebImageSample 
{ 
SDWebImageDataSource *imageController = [[SDWebImageDataSource alloc] init]; 
[imageController setImageLink:image]; 
[imageController release]; 

NSLog(@"imagelink are: %@", imageController.imageLink); 

SDWebImageRootViewController *newController = [[SDWebImageRootViewController alloc] init]; 
[[self navigationController] pushViewController:newController animated:YES]; 
[newController release]; 
} 

---

SDWebImageDataSource.m

-(void)setImageLink:(NSString *)imageLinkStr 
{ 
    imageLink = imageLinkStr; 

//// I can see the value here 
NSLog(@"111 %@ 111",imageLinkStr); 
NSLog(@"222 %@ 222",imageLink); 
} 

- (NSInteger)numberOfPhotos { 

////imageLink string is (null) Problem here 
NSLog(@"222 %@ 222",imageLink); 

images_ = [[NSArray alloc] initWithObjects: 
      [NSArray arrayWithObjects:@"http://farm3.static.flickr.com/2756/4464013736_524526b2b2_z.jpg", @"http://farm3.static.flickr.com/2756/4464013736_524526b2b2_s.jpg", nil], [NSArray arrayWithObjects:imageLink, imageLink, nil], nil]; 

NSInteger count = [images_ count]; 
return count; 
} 

- (void)imageAtIndex:(NSInteger)index photoView:(KTPhotoView *)photoView { 
NSArray *imageUrls = [images_ objectAtIndex:index]; 
NSString *url = [imageUrls objectAtIndex:FULL_SIZE_INDEX]; 
[photoView setImageWithURL:[NSURL URLWithString:url] placeholderImage:[UIImage imageNamed:@"photoDefault.png"]]; 
} 

Answer 1

也許不是最好的解決辦法，但你可以試試這個方法：

-(void)setImageLink:(NSString *)imageLinkStr { 
     imageLink = imageLinkStr; 

     //// I can see the value here 
     NSLog(@"111 %@ 111",imageLinkStr); 
     NSLog(@"222 %@ 222",imageLink); 

    [[NSUserDefaults standardUserDefaults] setObject:imageLink forKey:@"image"]; 
    [[NSUserDefaults standardUserDefaults]synchronize]; 
    } 

    - (NSInteger)numberOfPhotos { 

     NSString *importImage = [[NSUserDefaults standardUserDefaults] objectForKey:@"image"]; 
    ////imageLink string is (null) Problem here 
    NSLog(@"222 %@ 222",importImage); 

    images_ = [[NSArray alloc] initWithObjects: 
     [NSArray  arrayWithObjects:@"http://farm3.static.flickr.com/2756/4464013736_524526b2b2_z.jpg", @"http://farm3.static.flickr.com/2756/4464013736_524526b2b2_s.jpg", nil], [NSArray arrayWithObjects:importImage, importImage, nil], nil]; 

     NSInteger count = [images_ count]; 
     return count; 
    }