如何解析來自JSON

Question

"weatherIconUrl": [ 
{ 
"value": "http://cdn.worldweatheronline.net/images/wsymbols01_png_64/wsymbol_0001_sunny.png" 
} 
], 

圖像的URL，這是我的JSON數據，我可以能夠獲取文本類型的數據，但我可以不能夠從weatherIconUrl數組提取圖像URL

Answer 1

使用下面的一行代碼拿到鑰匙@"value"

NSString * imgURLString = [[[myMaindictonary objectForKey:@"weatherIconUrl"] objectAtIndex:0] objectForKey:@"value"]; 

值並將其轉換該字符串URL

NSURL *myURL = [NSURL URLWithString:[imgURLString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; 

，你可以一LSO通過

UIImage *myImg = [UIImage imageWithData:[NSData dataWithContentsOfURL:myURL]]; 

Answer 2

其獲取圖像從該網址很容易，

NSError *jsonParsingError = nil; 

NSArray *weatherArray = [NSJSONSerialization JSONObjectWithData:yourResponseData options:0 error:&jsonParsingError]; 

NSLog(@"weatherArray : %@", weatherArray); 

NSString *weatherIconImageURL = [[weatherArray objectAtIndex:0] objectForKey:@"weatherIconUrl"]]; 

NSLog(@"weatherIconImageURL : %@", weatherIconImageURL);