This is a weird problem..
1.I create a custom “ view ” by xib, and initialize it by
KWView *oneView = [[[NSBundle mainBundle] loadNibNamed:@"KWView" owner:nil options:nil ]lastObject];
This Xib’s File’s Owner name is “NSObject”（then i try any other more,whatever i choose, it runs smoothly）,and there, i choose the view’s Custom Class as “KWView”[This xib named "KWView.xib"]
======= That works !
2.Then i create another custom “viewController” by xib .
KWMenuVC *menuVC = [[[NSBundle mainBundle] loadNibNamed:@"KWMenuVC" owner:nil options:nil ]lastObject];// error occurs here
[self.view addSubview:self.menuVC.view];
This Xib’s File’s Owner name is “KWMenuVC”(i also try NSObject), and there, i choose the Custom Class of this VC’s view as “UIView”.[This xib named "KWMenuVC.xib"]
======= This one can not work, it stucks in “KWMenuVC *menuVC = [[[NSBundle mainBundle]loadNibNamed:@"menuVC" owner:nil options:nil ]lastObject]; “ and the error is “[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key view”
3.Later, i try another method to initialize the KWMenuVC ,which works well how matter how i change its Xib’s File’s Owner name
KWMenuVC *menuVC= [[KWMenuVC alloc]init];
[self.view addSubview:self.menuVC.view];
======= Works well !
How could this happen?? I used to construct apps' UI by codes. But xib seems more efficient in some cases. Now it seems not a easily understandable stuff.
Thx a lot for your help!
this class is not key value coding-compliant for the key viewsuggests that you have a xib which is attempting to bind some view to theviewproperty of aUIViewControllersubclass (probably as the File's Owner of that xib). It appears that you are providing a object which is not aUIViewControllerand does not have aviewproperty so this binding fails. Without more detail about what bindings these xibs contain or which objects are provided as their owners I can't give a more precise answer. – Jonah