Revision: 22329
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at January 9, 2010 08:26 by iswear_wxp
Initial Code
#define HORIZ_SWIPE_DRAG_MIN 100 CGPoint mystartTouchPosition; BOOL isProcessingListMove; - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; CGPoint newTouchPosition = [touch locationInView:self.view]; if(mystartTouchPosition.x != newTouchPosition.x || mystartTouchPosition.y != newTouchPosition.y) { isProcessingListMove = NO; } mystartTouchPosition = [touch locationInView:self.view]; [super touchesBegan:touches withEvent:event]; [[self.wv.subviews objectAtIndex:0] touchesBegan:touches withEvent:event]; } -(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = touches.anyObject; CGPoint currentTouchPosition = [touch locationInView:self.view]; // If the swipe tracks correctly. double diffx = mystartTouchPosition.x - currentTouchPosition.x + 0.1; // adding 0.1 to avoid division by zero double diffy = mystartTouchPosition.y - currentTouchPosition.y + 0.1; // adding 0.1 to avoid division by zero if(abs(diffx / diffy) > 1 && abs(diffx) > HORIZ_SWIPE_DRAG_MIN) { // It appears to be a swipe. if(isProcessingListMove) { // ignore move, we're currently processing the swipe return; } if (mystartTouchPosition.x < currentTouchPosition.x) { isProcessingListMove = YES; [self moveToPreviousItem]; return; } else { isProcessingListMove = YES; [self moveToNextItem]; return; } } else if(abs(diffy / diffx) > 1) { isProcessingListMove = YES; [[self.wv.subviews objectAtIndex:0] touchesMoved:touches withEvent:event]; [super touchesMoved:touches withEvent:event]; } } -(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { isProcessingListMove = NO; [super touchesEnded:touches withEvent:event]; [[self.wv.subviews objectAtIndex:0] touchesEnded:touches withEvent:event]; }
Initial URL
http://www.iphonedevsdk.com/forum/iphone-sdk-development/2168-how-did-they-do-ereader-swipe-hidden-bottom-nav-uiwebview.html
Initial Description
wv is my UIWebView object
Initial Title
eReader swipe and hidden bottom nav in UIWebView
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iPhone