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我一直试图自己解决这个问题(我昨晚醒来时把头撞在墙上)但希望这里有人能帮助我。iPhone JSON - 迭代NSArray并获取值
我已经使用这个教程连接到我的JSON数据源(http://www.mobileorchard.com/tutorial-json-over-http-on-the-iphone/),它工作正常,但我现在想获取值(按照我认为的对象键)。
我的json数据如下: [{“Id”:“1”,“Name”:“Richard”,“NameOfFile”:“1.jpg”},{“Id”:“395”, “Name”:“Alex”,“NameOfFile”:“390.jpg”}]
而我用来连接它的代码如下。
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
[connection release];
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
[responseData release];
SBJSON *json = [[SBJSON new] autorelease];
NSArray *myArray = [json objectWithString:responseString error:nil];
[responseString release];
for (int i = 0; i < [myArray count]; i++)
{
for(int colIndex = 0; colIndex < 5; colIndex++)
{
UIImage * myimage = [UIImage imageWithData: [NSData dataWithContentsOfURL: [NSURL URLWithString: @"http://www.goweruk.com/Images/Uploaded/220/873.jpg"]]];
UIImageView *myimageview = [[UIImageView alloc] initWithFrame:CGRectMake(0.0f, 0.0f,50.0f, 50.0f)];
[myimageview setImage:myimage];
CGRect frameRect = myimageview.frame;
frameRect.origin.x = (frameRect.size.width + 14) * colIndex;
frameRect.origin.y = (frameRect.size.height + 14) * i;
myimageview.frame = frameRect;
[self.view addSubview:myimageview];
[myimageview release];
}
}
}
所以我想要做的是在该循环内获取一个项目值。有谁知道我会怎么做?
这就是我一直在寻找。我虽然修改它 - 我用 NSDictionary * dict = [myArray objectAtIndex:i]; NSLog([dict objectForKey:@“NameOfFile”]); – tmutton 2010-12-12 11:36:58