CODEWITHSUNDEEP
iphoneobjective-cios
GourmetFan
GourmetFan

Reputation: 45

Objective-C how to disable user interaction selectively

I have a Main View Controller that has many subviews. What I want is to disable all other views except one subview and its subviews programmatically from the subview file. But all I get is all frozen views. What did I do wrong?

I tried this code:

#define kDontDisableUserInteraction 321


- (id)initWithFrame:(CGRect)frame
{
    NSLog(@"initWithFrame");
    self = [super initWithFrame:frame];
    if (self) {
        // Initialization code
        self.tag = kDontDisableUserInteraction;
    }
    return self;
}

-(void)something{

    MVC *myController = [self getMVC];

    for (UIView* subview in myController.view.subviews) {
        NSLog(@"subview.tag %i", subview.tag);
        if (subview.tag != kDontDisableUserInteraction){
            subview.userInteractionEnabled = NO;
        }
    }


    for (UIView *view in self.subviews){
        NSLog(@"enabled!");
        view.userInteractionEnabled = YES;
    }
}

- (MVC *)getMVC {
    Class vcc = [MVC class];    // Called here to avoid calling it iteratively unnecessarily.
    UIResponder *responder = self;
    while ((responder = [responder nextResponder])) if ([responder isKindOfClass: vcc]) return (MVC *)responder;
    return nil;
}

Upvotes: 2

Views: 3915

Answers (2)

GourmetFan
GourmetFan

Reputation: 45

I solved it by applying a full screen of a button on all other views and get the one view that I want to have user interaction upon the button. This way I disallow the user to click on any function except the one view I want the user to click on certain functions.

Upvotes: 0

Balakrishna
Balakrishna

Reputation: 166

Following links may be helpful:

How to disable touch input to all views except the top-most view?

UIView -- "user interaction enabled" false on parent but true on child?

Upvotes: 2

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