从该类内部的方法调用中删除超级视图

发布于 2024-11-26 22:33:51 字数 572 浏览 2 评论 0原文

我现在正在尝试在两种视图之间切换。问题是如何调用它。

这是解释我的情况的最简单方法：

我有一个家长视图。有一个子类 ChildView，其中包含一个表。在该表中选择一个对象后，我希望切换到该父视图的不同子视图。

家长--------- |Child 1 |Child 2

Child 1 是 Parent 的子类，允许我访问 Parent 中在 Child Views 1 和 2 之间切换的方法，但由于某种原因，从 Child 1 访问它时它不起作用。

有关如何的任何线索做这个吗？基本代码如下：

Child 1 - (void)changeViews

[super methodToSwitchChildViews];

父级 - (void)方法切换视图

[self.child1.view removeFromSuperView];
[self.view insertSubView:child2.view atindex:0];

原文

I'm trying to switch between two views right now. The problem is how it is called.

Heres the easiest way to explain my situation:

I have a Parent View.
With a subclass ChildView, that contains a table.
Upon selecting an object in that table, I wish to switch to a different child view of that parent view.

Parent---------
|Child 1 |Child 2

Child 1 is a subclass of Parent to allow me to access a method in Parent that switches between Child Views 1 and 2, but for some reason it wont work when accessing it from Child 1.

Any clues on how to do this? Heres the basic code:

Child 1
- (void) changeViews

[super methodToSwitchChildViews];

Parent
- (void) methodToSwitchViews

[self.child1.view removeFromSuperView];
[self.view insertSubView:child2.view atindex:0];

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空城缀染半城烟沙 2024-12-03 22:33:51

Super 是继承中位于（子）类之前的类。在这里，孩子们似乎是超级视图（父母）的视图。所以使用superview，而不是super。

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他不在意 2024-12-03 22:33:51

好吧，我查了很多资料，终于找到了解决方案。如果有人遇到同样的问题，您可以这样做：

在子视图的 .h 文件中执行

@class parentViewName

然后在 .m 文件中添加

#import "parentViewName.h"

...

- (void) functionToRemoveSelfFromView {
   parentViewName *PARENT = [[parentViewName alloc] init];

   // You must have a method in the parent view to toggle or remove the subview, the way
   // you want it done, then call it with the new delegate. Make sure it doesn't set this 
   // view to nil or releases it because this method has yet to return. If animating do not
   // hide this view either.

   [PARENT methodToRemoveSelfFromView];
   [PARENT release];
}

Okay, I dug around quite a bit and finally figured out a solution. In case anybody ever has the same problem here's what you do:

In the .h file of the child view do

@class parentViewName

Then in the .m file add

#import "parentViewName.h"

...

- (void) functionToRemoveSelfFromView {
   parentViewName *PARENT = [[parentViewName alloc] init];

   // You must have a method in the parent view to toggle or remove the subview, the way
   // you want it done, then call it with the new delegate. Make sure it doesn't set this 
   // view to nil or releases it because this method has yet to return. If animating do not
   // hide this view either.

   [PARENT methodToRemoveSelfFromView];
   [PARENT release];
}

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