objective-c - 带有嵌套 NSArray 的 NSOutLineView

Question

我已经嵌套了 n 级动态数组，我想用它来绑定它NSOutlineView，但我不知道如何NSOutlineView使用它的四个委托方法来绑定它。

嵌套数组如：

(
 {
    id = 3;
    summary = "req 1";
    "sub_requirement" =         
    (
        {
             id = 16;
            "sub_requirement" = "";
            summary = "sub req 1";
        }
    );

},
{ 
    id = 5;
    summary = "req 1-1";
    "sub_requirement" =       
    (
        {
            id = 17;
            "sub_requirement" = "";
            summary = "sub req 1-1";
        },
        {

            id = 21;
            "sub_requirement" = "";
            summary = "req 1";
        }
    );
},
    {
    id = 7;
    summary = "req 1 1";
    "sub_requirement" =         
    (            
        {
            approved = 1;
            budget = 3600;
            description = "";
            estimate = 3600;
            "fk_feature" = 4;
            "fk_parent" = 7;
            "fk_requirementtype" = 1;
            id = 18;
            "sub_requirement" = "";
            summary = "sub req 11";
        }
    );

},

{
    id = 8;
    "sub_requirement" = "";
    summary = "req 1 2";
},

{
    id = 12;
    "sub_requirement" = "";
    summary = "req 1";
},

{
    id = 14;
    "sub_requirement" = "";
    summary = req1;
}
)

Answer 1

您可以使用NSTreeController ，这里有一些链接和教程。