ios - JSON Parse iOS Array of Dictionaries 解析成数组只显示 tableview 中的最后一个对象

Question

我有一个我正在解析的字典 JSON 数组。我的问题是我想在数组中显示所有符合我所需键值对(键是名称)的记录，我只在我的表格 View 中显示最后一个。几乎是凌晨 4 点，我从晚上 10 点开始一直在转圈，所以任何帮助都会非常感激，因为我忽略了一些东西。谢谢!

NSArray *jsonDataArray = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&error];
self.someArray = [[NSMutableArray alloc]init];

for (NSMutableDictionary *dictionary in jsonDataArray)
{
    NSMutableArray* Response_array = [dictionary objectForKey:@"loans"];
    NSLog(@"Array: %@", Response_array);

    NSDictionary *dict = [Response_array objectAtIndex:0];
    NSLog(@"dict is %@",dict);

    self.someMutableArray = [dict objectForKey:@"name"];

    NSLog(@"what is name %@",self.someMutableArray);
}

我试过了:

NSArray *jsonDataArray = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&error];   

for ( int i = 0 ; i < jsonDataArray.count ; i++ )
{
    self.someDictionary = [[jsonDataArray objectAtIndex:i] objectForKey:@"loans"];
    self.someMutableArray = [self.someDictionary valueForKey:@"name"];
    NSLog(@"MutableArray inside is %@", self.someMutableArray);    
} 

NSLog(@"MutableArray outside is %@",self.someMutableArray);

在我最后一次尝试中，我移动了 valueForKey:@"name"的位置:

NSArray *jsonDataArray = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&error];
self.someMutableArray = [NSMutableArray array];


for ( int i = 0 ; i < jsonDataArray.count ; i++ )
{
    self.someMutableArray = [[jsonDataArray objectAtIndex:i] objectForKey:@"loans"];
}

NSLog(@"someMutableArray outside is %@",self.someMutableArray);

然后在我的表格 View 的 cellForRowAtIndexPath 中，我有:

NSDictionary *dict2 = [self.someMutableArray objectAtIndex:indexPath.row];
NSLog(@"what is dict2 %@", dict2);
cell.textLabel.text = [dict2 valueForKey:@"name"];

这是我的 JSON 的设置:

[
  -{
     id: 285,
     name: name 1,
    -loans: [
         -{
            id: 42,
            name: "Shark"
          }
     ]
   },
  -{
     id: 286,
     name: name 2,
     -loans: [
          -{
             id: 50,
             name: "Flipper"
           }
      ]
   }
]

Answer 1

既然已经有了数组，为什么还要循环呢？只需使用 JSON 响应分配您的数组

NSArray *jsonDataArray = [[NSArray alloc] initWithArray:[NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&error]];

这个数组将是你的数据源，所以从委托(delegate)和你的 rowAtIndexPath 返回它的计数

NSDictionary *dictObject = [jsonDataArray objectAtIndex:indexPath.row];
cell.textLabel.text = [dictObject valueForKey:@"Shark"];

对于自定义单元格，请喜欢

NSDictionary *dictObject = [jsonDataArray objectAtIndex:indexPath.row];
cell.textLabel1.text = [dictObject valueForKey:@"Shark"];
cell.textLabel2.text = [dictObject valueForKey:@"Flipper"];