Question

Looking at some of the other questions, this is the code I implemented in the .m of the view implementing the custom keyboard.

- (id)initWithCoder:(NSCoder *)coder {
self = [super initWithCoder:coder];
if (self) {

    self.userInteractionEnabled = YES;

    [self addGestureRecognizer:
     [[UITapGestureRecognizer alloc] initWithTarget:self
                                             action:@selector(becomeFirstResponder)]];


   NSArray *bundle = [[NSBundle mainBundle] loadNibNamed:@"FormulaKeyboard" owner:self options:nil];

    for (id object in bundle) {
        if ([object isKindOfClass:[FormulaKeyboard class]])
            keyboard = (FormulaKeyboard *)object;
    }   


    self.inputView = keyboard;





}
return self;

}

Below is the error that showed up.

* Terminating app due to uncaught exception ‘NSUnknownKeyException’, reason: ‘[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key view.’

When I load the nib in an actual view controller, it works fine. However, as evidenced above, it doesn’t work when I try loading it inside another view.

Also, in the nib, I set the file owner’s class to UIViewController and attached it to the main view, since this was what another SO question instructed. I’m not sure if I need to modify this since I’m adding the custom view inside another view and not a viewc controller.

Thanks

EDIT:

.h of view implementing keyboard

@interface EquationTextField : UIView <KeyInput> {

FormulaKeyboard *keyboard;

}

@property (readwrite, retain) UIView *inputView;
@end

Answer 1

Inside the xib if you ctrl + click the File's Owner you will most likely see that you have a view outlet that is connected to the top level view object in the xib.

1. Refers to an IBOutlet in your code
2. Refers to an object in Interface Builder

The reason this works inside a UIViewController is that a UIViewController has a property view which gets connected up when loading the xib.

A UIView subclass does not normally have a property called view therefore you get an exception.

Seems as you are grabbing the item from the top level objects array returned by the loadNibNamed:owner:options: method you do not need this connection in the xib. Therefore you can disconnect this connection in the xib file.

Alternatively

You could:

• Change the File's Owner class to the class of your custom view.
• Make inputView an IBOutlet
• Connect inputView to your custom keyboard in the xib

• Then just use

  [[NSBundle mainBundle] loadNibNamed:@"FormulaKeyboard" owner:self options:nil];