Question

所有人......这可能是一个愚蠢的问题，但我是iOS新手..我需要我们的帮助.. 我正在做Json解析..得到一些值..我的json响应是： -

    {
        "_id" = 6001256351188711607;
        "access_level" = private;
        createdOn = "2012-12-17T07:06:42.09000";
        "created_by" = 9514682679942790960941872227340;
        description = "";
        keywords = "";
        location =         (
            "12.000023",
            "77.000012"
        );
        picture = "http://54120127762218290878972982207449539830674.jpg";
        "rel_interests" =         (
        );
        source = "Bank";
        "source_url" = "";
        title = ipl;
    },

 );
        "location_description" = "";
        picture = "http://54252499650705298384658551818639.jpg";
        "rel_interests" =         (
        );
        source = "";
        "source_url" = "";
        title = "Air";
    }

我使用此代码获取标题： -

    [titleArray addObject:[[_arrData objectAtIndex:j]valueForKey:@"title"]];

但是当我为位置做这个时我会被抛出异常....我怎么能得到位置？请帮我实现这个目标......

Answer 1

您可以使用以下代码获取第一个对象

[titleArray addObject:[[[[_arrData objectAtIndex:j]valueForKey:@"location"]objectAtIndex:0]intValue]];

代表第二个对象

[titleArray addObject:[[[[_arrData objectAtIndex:j]valueForKey:@"location"]objectAtIndex:1]intValue]];

<强>被修改你有一个字典，你有一个多个对象作为数组..在该数组的第一个对象包含一个字典..在该字典中只有你有位置数组。要访问它，您需要按照以下代码

NSArray *location = [[_arrData objectAtIndex:1] objectForKey:@"location"];
double X = [[location objectAtIndex:0] doubleValue];
double locY = [[location objectAtIndex:1] doubleValue];

Answer 2

title = Watch;
location =         (
            "12.000000",
            "77.000000"
        );

假设这是yourDataDict dictionany。

[titleArray addObject:[yourDataDict valueForKey:@"title"];
float loc1 = [[[yourDataDict valueForKey:@"location"] objectAtIndex:0] floatValue];
float loc2 = [[[yourDataDict valueForKey:@"location"] objectAtIndex:1] floatValue];

Answer 3

NSArray *loc = [[_arrData objectAtIndex:j] objectForKey:@"location"];
double locX = [[loc objectAtIndex:0] doubleValue];
double locY = [[loc objectAtIndex:1] doubleValue];

如何通过json解析获取整数值

3 个答案: