CODEWITHSUNDEEP
iphoneobjective-cxcode
Albert
Albert

Reputation: 17

pointInside: withEvent:

i tried to do something like this.

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
    if ([self pointInside:point withEvent:event]) {
        return _scrollView;
    }
    return nil;
}

but i get an error like

error: Automatic Reference Counting Issue: Receiver type 'ViewController' for instance message does not declare a method with selector 'pointInside:withEvent:'
please help me,thanks

Upvotes: 1

Views: 2839

Answers (1)

user244343
user244343

Reputation:

What are you trying to do with that code?

self is a UIViewController, but the pointInside:withEvent: method is defined for UIViews. Try changing it to:

if([self.view pointInside:point withEvent:event])

Based on the reference to _scrollView though, it looks like you should be writing something like:

if([self.scrollView pointInside:point withEvent:event])

Since you return the scrollview if that test passes.

To go even one step further, though, the default behaviour for hitTest:withEvent: should in fact return _scrollView if it's a subview of self.view. So you shouldn't even need to write that method unless you're specifically excluding some of the other subviews from touch events. In that case, use the self.scrollView way.

Upvotes: 4

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