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POGarbled exception when implementing UIPopoverBackgroundView subclass
 

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  1. POGarbled exception when implementing UIPopoverBackgroundView subclass
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    <p>I've implemented this class as follows:</p> <pre><code>#import "JKBackgroundView.h" @implementation JKBackgroundView static CGFloat jkArrowBase = 26.0; static CGFloat jkArrowHeight = 16.0; // Background image insets static CGFloat jkBackgroundTopInset = 68.0f; static CGFloat jkBackgroundLeftInset = 16.0f; static CGFloat jkBackgroundBottomInset = 16.0f; static CGFloat jkBackgroundRightInset = 34.0f; // Content view insets static CGFloat jkContentTopInset = 40.0f; static CGFloat jkContentLeftInset = 6.0f; static CGFloat jkContentBottomInset = 8.0f; static CGFloat jkContentRightInset = 7.0f; +(CGFloat)arrowBase { return jkArrowBase; } -(UIPopoverArrowDirection)arrowDirection { return UIPopoverArrowDirectionUp; } -(CGFloat)arrowOffset { return 0.0f; } +(CGFloat)arrowHeight { return jkArrowHeight; } +(UIEdgeInsets)contentViewInsets { return UIEdgeInsetsMake(jkContentTopInset, jkContentLeftInset, jkContentBottomInset, jkContentRightInset); } -(void)drawRect:(CGRect)rect { UIEdgeInsets popoverInsets = UIEdgeInsetsMake(jkBackgroundTopInset, jkBackgroundLeftInset, jkBackgroundBottomInset, jkBackgroundRightInset); UIImage *popoverImage = [[UIImage imageNamed:@"popover_stretchable.png"] resizableImageWithCapInsets:popoverInsets]; [popoverImage drawInRect:rect]; } -(id)initWithFrame:(CGRect)frame { self = [super initWithFrame:frame]; if (self) { self.backgroundColor = [UIColor clearColor]; } return self; } -(void)setArrowDirection:(UIPopoverArrowDirection)arrowDirection { // Do nothing } @end </code></pre> <p>I add it to my UIPopoverView (not a subclass) using this code:</p> <pre><code>_logoutPopover.popoverBackgroundViewClass = [JKBackgroundView class]; </code></pre> <p>When I run the project, though, I receive a crazy error message as follows:</p> <blockquote> <p><em>*</em> Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UIPopoverBackgroundView º¯lå] must be implemented by subclassers.'</p> </blockquote> <p>Does anyone has any idea what method it thinks I didn't implement? It appears to just be a bunch of gibberish. Thanks!</p> <p><strong>Edit</strong> It looks like I forgot to implement setArrowOffset:. It works after adding that. Apple's error message was just garbled.</p>
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    1. This table or related slice is empty.
    1. PTQuestion
    1. USJames
    1. USJames
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    1. VO
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      1. POGarbled exception when implementing UIPopoverBackgroundView subclass
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    2. VO
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      1. POGarbled exception when implementing UIPopoverBackgroundView subclass
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    3. VO
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    1. COCan you show us the interface too?
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      1. POGarbled exception when implementing UIPopoverBackgroundView subclass
      1. USTim Kemp
 

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