问题描述
我已经创建了一个 UIViewController
,我们可以调用 MyViewController1
。当我拨打 MyViewController1
时,中的所有
(以及代码的其余部分)。 IBOutlet
nil viewDidLoad
I've created a UIViewController
that we can call MyViewController1
. When I call MyViewController1
, all my IBOutlet
are nil in viewDidLoad
(and in the rest of the code too).
当我通过执行
MyViewController1 * vc = [[MyViewController1 alloc] init] $ c创建此控制器时$ c>,
如果我用另一个替换 MyViewController1
,例如 MyViewController2
,它有效。所以我猜问题实际上是在 MyViewController1
。
if I replace MyViewController1
by an other one, for example MyViewController2
, it works. So I guess the problem is really in MyViewController1
.
你可能想知道的最后一件事是 MyViewController1
实际上是 MySuperViewController1
的子类,它是 UIViewController
。
Last thing you might want to know, is that MyViewController1
is actually a subclass of MySuperViewController1
that is a UIViewController
.
感谢您的帮助!
EDIT
我意识到我的情况可能更复杂。以下是我的确切文件:
I realized my case was maybe more complicated. Here are my exact files :
// MySuperViewController1
// MySuperViewController1
MySuperViewController1.h
MySuperViewController1.m
MySuperViewController1.xib
// MyViewController1
// MyViewController1
MyViewController1.h
MyViewController1.m
因此nib属于超类,而不属于子类。我可以这样做吗?
So the nib belongs to the superclass, and not the subclass. Can I do that ?
推荐答案
您应该使用:
MyViewController1 *vc = [[MyViewController1 alloc] initWithNibName:@"MyViewController1" bundle:nil]
调用 init
将不会与你的xib文件匹配,也不会分配你的不同 IBOutlet
calling init
won't do the match with your xib file and won't alloc your differents IBOutlet
编辑:
有两种可能的解决方案:
There are two possibles solutions :
首先用超级nibName调用init:
First is calling init with super nibName :
MyViewController1 *vc = [[MyViewController1 alloc] initWithNibName:@"MySUperViewController1" bundle:nil]
第二个是调用超级 initWithNibName:在子init方法中
:
-(id)init {
if (self = [super initWithNibName:@"MySuperViewController1" bundle:nil]) {
// Init
}
return self;
}
这篇关于我的所有IBOutlet在viewDidLoad中都是nil的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!