iCarousel + Parse：從PFObject加載異步圖像

Question

我想用解析（parse.com，pfoject）對象填充iCarousel而沒有成功。

我找不到如何做到這一點的任何例子，所以爲什麼我問這裏...

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

_items = [NSMutableArray array]; 

PFQuery *query = [PFQuery queryWithClassName:@"testUser"]; 
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) { 
    if (!error) { 
     // The find succeeded. The first 100 objects are available in objects 
     [_items addObjectsFromArray:objects]; 

    } else { 
     // Log details of the failure 
     NSLog(@"Error: %@ %@", error, [error userInfo]); 
    } 
}]; 


//configure carousel 
_carousel.type = iCarouselTypeRotary; 

//_carousel.viewpointOffset = CGSizeMake(0.0f, 100.0f); 
[_carousel setContentOffset:CGSizeMake(0.0f, -60.0f)]; 

}

而在viewForItemAtIndex：

- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(UIView *)view 
{ 
    //create new view if no view is available for recycling 
    if (view == nil) 
    { 
     view = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 300.0f, 300.0f)]; 
    } 

PFObject *eachObject = [_items objectAtIndex:index]; 
PFFile *theImage = [eachObject objectForKey:@"image"]; 
NSData *imageData = [theImage getData]; 
UIImage *image = [UIImage imageWithData:imageData]; 

((UIImageView *)view).image = image; 
view.contentMode = UIViewContentModeCenter; 

return view; 

}

請幫忙嗎？ :-(

Answer 1

在viewDidLoad中，在

[_items addObjectsFromArray:objects]; 

後把

[_carousel reloadData]; 

否則後該項目已被添加到陣列中的旋轉木馬不會被更新，所以你還是會看着空的旋轉木馬