I show a custom warning view that is displayed from the UIAlertView in my view controller, and when I rotate the device about 2-3 times, both the view controller and the warning view rotate. But then the application crashes without any clear clues. I have a breakpoint on all exceptions, but she cannot catch it.
This crash does not happen if I use the standard UIAlertView. I found custom alertview code from someone else. Is something underestimated here? Or how can I find out more about what is happening?
@implementation CustomAlertView - (void) setBackgroundColor:(UIColor *) background withStrokeColor:(UIColor *) stroke { if(fillColor != nil) { [fillColor release]; [borderColor release]; } fillColor = [background retain]; borderColor = [stroke retain]; } - (id)initWithFrame:(CGRect)frame { if((self = [super initWithFrame:frame])) { if(fillColor == nil) { } } return self; } - (void)layoutSubviews { for (UIView *sub in [self subviews]) { if([sub class] == [UIImageView class] && sub.tag == 0) { // The alert background UIImageView tag is 0, // if you are adding your own UIImageView // make sure your tags != 0 or this fix // will remove your UIImageView as well! [sub removeFromSuperview]; break; } } } - (void)drawRect:(CGRect)rect { CGContextRef context = UIGraphicsGetCurrentContext(); CGContextClearRect(context, rect); CGContextSetAllowsAntialiasing(context, true); CGContextSetLineWidth(context, 0.0); CGContextSetAlpha(context, 0.8); CGContextSetLineWidth(context, 2.0); CGContextSetStrokeColorWithColor(context, [borderColor CGColor]); CGContextSetFillColorWithColor(context, [fillColor CGColor]); // Draw background CGFloat backOffset = 2; CGRect backRect = CGRectMake(rect.origin.x + backOffset, rect.origin.y + backOffset, rect.size.width - backOffset*2, rect.size.height - backOffset*2); [self drawRoundedRect:backRect inContext:context withRadius:8]; CGContextDrawPath(context, kCGPathFillStroke); // Clip Context CGRect clipRect = CGRectMake(backRect.origin.x + backOffset-1, backRect.origin.y + backOffset-1, backRect.size.width - (backOffset-1)*2, backRect.size.height - (backOffset-1)*2); [self drawRoundedRect:clipRect inContext:context withRadius:8]; CGContextClip (context); //Draw highlight CGGradientRef glossGradient; CGColorSpaceRef rgbColorspace; size_t num_locations = 2; CGFloat locations[2] = { 0.0, 1.0 }; CGFloat components[8] = { 1.0, 1.0, 1.0, 0.35, 1.0, 1.0, 1.0, 0.06 }; rgbColorspace = CGColorSpaceCreateDeviceRGB(); glossGradient = CGGradientCreateWithColorComponents(rgbColorspace, components, locations, num_locations); CGRect ovalRect = CGRectMake(-130, -115, (rect.size.width*2), rect.size.width/2); CGPoint start = CGPointMake(rect.origin.x, rect.origin.y); CGPoint end = CGPointMake(rect.origin.x, rect.size.height/5); CGContextSetAlpha(context, 1.0); CGContextAddEllipseInRect(context, ovalRect); CGContextClip (context); CGContextDrawLinearGradient(context, glossGradient, start, end, 0); CGGradientRelease(glossGradient); CGColorSpaceRelease(rgbColorspace); } - (void) drawRoundedRect:(CGRect) rrect inContext:(CGContextRef) context withRadius:(CGFloat) radius { CGContextBeginPath (context); CGFloat minx = CGRectGetMinX(rrect), midx = CGRectGetMidX(rrect), maxx = CGRectGetMaxX(rrect); CGFloat miny = CGRectGetMinY(rrect), midy = CGRectGetMidY(rrect), maxy = CGRectGetMaxY(rrect); CGContextMoveToPoint(context, minx, midy); CGContextAddArcToPoint(context, minx, miny, midx, miny, radius); CGContextAddArcToPoint(context, maxx, miny, maxx, midy, radius); CGContextAddArcToPoint(context, maxx, maxy, midx, maxy, radius); CGContextAddArcToPoint(context, minx, maxy, minx, midy, radius); CGContextClosePath(context); } - (void)disableDismissForIndex:(int)index_{ canIndex = index_; disableDismiss = TRUE; } - (void)dismissAlert{ [self dismissWithClickedButtonIndex:[self cancelButtonIndex] animated:YES]; } - (void)vibrateAlert:(float)seconds{ canVirate = TRUE; [self moveLeft]; [self performSelector:@selector (stopVibration) withObject:nil afterDelay:seconds]; } -(void)dismissWithClickedButtonIndex:(NSInteger)buttonIndex animated:(BOOL)animated { if (disableDismiss == TRUE && canIndex == buttonIndex){ }else { [super dismissWithClickedButtonIndex:buttonIndex animated:animated]; } } - (void)hideAfter:(float)seconds{ [self performSelector:@selector (dismissAlert) withObject:nil afterDelay:seconds]; } - (void)moveRight{ if (canVirate){ [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:0.05]; self.transform = CGAffineTransformMakeTranslation(-10.0, 0.0); [UIView commitAnimations]; [self performSelector:@selector (moveLeft) withObject:nil afterDelay:0.05]; } } - (void)moveLeft{ if (canVirate){ [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:0.05]; self.transform = CGAffineTransformMakeTranslation(10.0, 0.0); [UIView commitAnimations]; [self performSelector:@selector (moveRight) withObject:nil afterDelay:0.05]; } } - (void)stopVibration{ canVirate = FALSE; self.transform = CGAffineTransformMakeTranslation(0.0, 0.0); } @end