2014/10/15 下午 10:15:03

iphone Programming Glossary: touchpoint.y

How to rotate and resize the image view with single finger

http://stackoverflow.com/questions/12566791/how-to-rotate-and-resize-the-image-view-with-single-finger

imageView UITouch touch event allTouches anyObject float deltaWidth touchPoint.x previous.x float deltaHeight touchPoint.y previous.y if isResizingLR containerVw.frame CGRectMake containerVw.frame.origin.x containerVw.frame.origin.y touchPoint.x.. containerVw.frame CGRectMake containerVw.frame.origin.x containerVw.frame.origin.y touchPoint.x deltaWidth touchPoint.y deltaWidth imageView.frame CGRectMake imageView.frame.origin.x imageView.frame.origin.y touchPoint.x deltaWidth touchPoint.y.. deltaWidth imageView.frame CGRectMake imageView.frame.origin.x imageView.frame.origin.y touchPoint.x deltaWidth touchPoint.y deltaWidth dragIm.frame CGRectMake containerVw.frame.size.width 10 containerVw.frame.size.height 10 20 20 if isResizingLR..

How can i change the color of pagination dots of UIPageControl?

http://stackoverflow.com/questions/2942636/how-can-i-change-the-color-of-pagination-dots-of-uipagecontrol

kDotSpacer CGRect currentBounds self.bounds CGFloat x touchPoint.x dotSpanX 2 CGRectGetMidX currentBounds CGFloat y touchPoint.y dotSpanY 2 CGRectGetMidY currentBounds if x 0 x dotSpanX y 0 y dotSpanY return self.currentPage floor x kDotDiameter kDotSpacer..

How do you get the touchesBegan coordinates when a UIButton is triggered?

http://stackoverflow.com/questions/4506584/how-do-you-get-the-touchesbegan-coordinates-when-a-uibutton-is-triggered

touch ev allTouches anyObject CGPoint touchPoint touch locationInView self.view NSLog @ Touch x f y f touchPoint.x touchPoint.y void dragMoving UIControl c withEvent ev NSLog @ dragMoving...... void dragEnded UIControl c withEvent ev NSLog @ dragEnded........

Calculate angle for rotation in Pie Chart

http://stackoverflow.com/questions/5102942/calculate-angle-for-rotation-in-pie-chart

CGPoint objPos andTouchPoint CGPoint touchPoint float dX touchPoint.x objPos.x distance along X float dY touchPoint.y objPos.y distance along Y float radians atan2 dY dX tan opp adj Now we have to convert radians to degrees float degrees..

Getting selected elements programatically from uiwebview?

http://stackoverflow.com/questions/9940987/getting-selected-elements-programatically-from-uiwebview

locationInView myWebView NSString js NSString stringWithFormat @ document.elementFromPoint f f .toString touchPoint.x touchPoint.y NSString tagName myWebView stringByEvaluatingJavaScriptFromString js NSLog @ Selected Name @ tagName In log it is displaying.. js in your tap handler NSString js NSString stringWithFormat @ document.elementFromPoint f f .innerHTML touchPoint.x touchPoint.y when creating your tap gesture handler specify a delegate for it it can be your controller tap1.delegate self in your controller..