Question

我在JSON中获取图片网址列表。现在我需要逐个解析图像URL并将其转换为EGOImage并将其添加到数组中以便使用该图像执行动画。现在我得到的错误是图像是nil并且无法添加到数组中。

注意：图片网址没有问题。

我的JSON结构是

{
 "images":[
               {
                 "url":"https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcRQmkaIO86rYB-DctBruyv4lFTEM-v_pGG9k5i0lrAr2Elzibvuiw"
               },
               {
                  "url":"https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcQGh1nRGgnbUZXgKLMKGdeT320PGttnLmbN4R-DxmckQpjVDhHS"
               }
          ]
}

我的代码：

NSMutableArray*arrForImageURL = [dic objectForKey:@"images"];
arrForUniqueWorderImages=[[NSMutableArray alloc]init];
for (NSDictionary*dictForImg in arrForImageURL)
{
   NSString*stringForImageURL=[dictForImg objectForKey:@"url"];
   imgView.imageURL=[NSURL URLWithString:stringForImageURL];
   [arrForUniqueWorderImages addObject:(EGOImageView*)imgView.image];
}

Answer 1

您正在尝试将EGOImageviews存储在数组中，为此您必须先正确初始化它。试试这个

NSMutableArray*arrForImageURL = [dic objectForKey:@"images"];
arrForUniqueWorderImages=[[NSMutableArray alloc]init];
for (NSDictionary*dictForImg in arrForImageURL)
{
   EGOImageView *imageView = [[EGOImageView alloc] init];

   imageView.contentMode=UIViewContentModeScaleAspectFit;
   NSString*urlString=[dictForImg objectForKey:@"url"];
   NSURL *imageUrl=[NSURL URLWithString:urlString];
   imageView.imageURL =imageUrl;
   imageView.frame=CGRectMake(0,0,320,300);
   [arrForUniqueWorderImages addObject:imageView];
}

如何将图像URL转换为EGO图像并将该图像添加到NSMutablearray中？

1 个答案: