如何引用NSArray中NSDictionary中的对象

When I NSLog the array I get this:

当我NSLog数组我得到这个:

(
    {
        content = "content a";
        id = 452069;
        timestamp = 1313341470;
    },
        {
        content = "content b";
        id = 451498;
        timestamp = 1313261505;
    },
    etc...
)

How do you refer to specific index's? For example how would you get the content for the second index.

你如何参考具体的指数?例如,如何获取第二个索引的内容。

I've tried [[myArray objectAtIndex:1]objectForKey:@"content"] but that crashes the program.

我已经尝试[[myArray objectAtIndex:1] objectForKey:@“content”]但是这会导致程序崩溃。

Also doing [myArray objectAtIndex:1] crashes the program as well.

另外做[myArray objectAtIndex:1]也会使程序崩溃。

2 个解决方案

#1

According to your edit your array is likely over released. Make sure your array is properly retained, if it uses a property make sure the property is set to copy or retain and if you set it internally be sure to use self.myArray = ...; and not myArray = ...'.

根据您的编辑,您的阵列可能已过度发布。确保您的数组已正确保留,如果它使用属性,请确保该属性设置为复制或保留,如果您在内部设置它,请确保使用self.myArray = ...;而不是myArray = ......'。

#2

Have you tried -valueForKey:? The item at that index is not an object but a value.

你试过-valueForKey:?该索引处的项目不是对象而是值。