Question

我有一个资源文件（plist）添加到我的项目中。我目前正在编写某种“帮助者”来阅读和写作。我有3个get和3个set方法。第一个返回顶部的对象，第二个返回另一个字典内的对象（参见代码），第三个返回任何给定深度的对象，我只需要指定节点名称，就可以到达那里。（我希望你能理解我）

问题在于制定者。设置“表面”对象并不重要，因此设置另一个字典中的对象。当我尝试在深度处设置对象时会出现问题。在我写任何其他内容之前，我会发布代码，以便你能理解我在说什么。

fullContent是包含该文件的NSMutableDictionary。

//This one is easy, just return the object for the key.
- (id)getSurfaceObjectForKey:(NSString*)key
{
    return [fullContent objectForKey:key];
}

//Hope you understand this one. Main parent is a string with the name of the first node. It gets a dictionary out of my plist and returns an object for key (I have a dictionary structured plist)
- (id)getMainParentChildObjectForKey:(NSString*)key
{
    NSAssert(!mainParent, @"Main parent must not be nil");

    return [[fullContent objectForKey:mainParent] objectForKey:key];
}

//This one gets the element at any given depth I just have to pass in an array containing node names
- (id)getObjectForKey:(NSString *)key atDepthWithChildren:(NSArray *)children
{
    id depthElement = fullContent;

    for (int i = 0; i < children.count; i++)
        depthElement = [depthElement objectForKey:[children objectAtIndex:i]];

    return [depthElement objectForKey:key];
}

//Sets a top (surface) object
- (void)setSurfaceObject:(id)object ForKey:(NSString *)key
{
    [fullContent setObject:object forKey:key];
    [self writePlistContent];
}

//Sets an object inside a dictionary (mainParent - string with the name of dictionary node)
- (void)setMainParentChildObject:(id)object forKey:(NSString *)key
{
    [[fullContent objectForKey:mainParent] setObject:object forKey:key];
    [self writePlistContent]; //Self explanatory. I write this to file
}

//This is where my problem comes. How do I save this to plist without making any other changes to it? Im guessing I have to rebuild it from inside up?
- (void)setObject:(id)object forKey:(NSString *)key atDepthWithChildren:(NSArray *)children
{
    id depthElement = fullContent;

    for (int i = 0; i < children.count; i++)
        depthElement = [depthElement objectForKey:[children objectAtIndex:i]];

    [depthElement setObject:object forKey:key]; //I set the desired object but I dont know how to save it

    for (int i = 0; i < children.count - 1; i++)
    {
        //Here i guess i would have to build the NSDictionary from inside out. Using a NSMutable array perhaps?
    }
}

我希望你理解我的问题。我希望我不要太复杂化。我真的很累，现在已经活了近24小时了，不能想办法解决这个问题。

提前谢谢。

Answer 1

我不明白为什么你不只是使用你的：

[self writePlistContent];

保存它。

肯定会保存plist的全部内容。

浏览plists和设置对象

1 个答案: