EZFormRadioField.unwireInputView throws exception : [UILabel setInputView:] unrecognized selector

[blitzxion]

Setup:

-(void)viewDidLoad { 
/*...*/
//First (of 6 culprits)
EZFormRadioField *sampleRateField = [[EZFormRadioField alloc] initWithKey:InitFormDevice_SampleRate_Key];
[sampleRateField setChoicesFromArray:self.sampleRateOptions];
sampleRateField.validationRequiresSelection = YES;
sampleRateField.validationRestrictedToChoiceValues = YES;
[sampleRateField setFieldValue:@"30"];
[self.initializationForm addFormField:sampleRateField];
/*...*/

// Radio/Select Fields (Use labels)
    for (NSString *t in radioFields) {
        EZFormRadioField *f = [self.initializationForm formFieldForKey:t];
        if([t isEqualToString:InitFormDevice_SampleRate_Key]) [f useLabel:self.lblDeviceSampleRate];
/*...*/
}

}

/*
Initialization of the form fields, and wiring them up has already completed. Now i'm trying to leave the form via the UINavigationController (back button).
*/
-(void)viewWillDisappear:(BOOL)animated { 
    [super viewWillDisappear:animated];
    [self.initializationForm unwireUserViews];
}

Error:

-[UILabel setInputView:]: unrecognized selector sent to instance 0x15d23ff0
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UILabel setInputView:]: unrecognized selector sent to instance 0x15d23ff0'

Using XCode 5, iOS7 (iOS6 SDK), iPhone 4S (just incase someone needed this information)

With only a few exceptions like viewDidUnload (deprecated), I followed exactly how the example project built up and tore down the fields. This only seems to occur with the combination of EZFormRadioFields and UILabels.

The reason why I bring this up is because every time I fire up this view, memory consumption increases a bit, but when leaving the view, it doesn't get released (using ARC, etc, etc). Figured I would have to use the unwireUserViews to fix this. For the most part, up until it hits that exception, the memory usage drops a little bit.

Could I be missing something?

[jlerner]

Same thing here. Tried calling -unwireUserViews in -viewWillDisappear:, but that can't work in my case because we have several instances of EZFormMultiRadioFormField in the form.

[jessedc]

It looks like EZFormRadioField combined with it's superclass EZFormTextField are missing a few edge cases around unwiring the input view if it's a UILabel.

- (void)unwireInputView
{
    if ([self.userView.inputView isKindOfClass:[UIPickerView class]]) {
    UIPickerView *pickerView = (UIPickerView *)self.userView.inputView;
    if (pickerView.dataSource == self) pickerView.dataSource = nil;
    if (pickerView.delegate == self) pickerView.delegate = nil;
    }

    self.userView.inputView = nil;
}

It's clear here that if it's a label, it will fall over.

IMHO the userView/inputView behaviour needs some reworking here.