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2014/10/15 ¤U¤È 10:15:05
iphone Programming Glossary: translation.xHow to get a rotated, zoomed and panned image from an UIImageView at its full resolution? http://stackoverflow.com/questions/11104042/how-to-get-a-rotated-zoomed-and-panned-image-from-an-uiimageview-at-its-full-re CGPoint translation gestureRecognizer translationInView piece superview piece setCenter CGPointMake piece center .x translation.x piece center .y translation.y gestureRecognizer setTranslation CGPointZero inView piece superview else if gestureRecognizer..
UIView animation jumps at beginning http://stackoverflow.com/questions/12535647/uiview-animation-jumps-at-beginning exact same problem so here is the solution I came up with. CGAffineTransform transform CGAffineTransformMake 1 0 0 1 translation.x translation.y UIView animateWithDuration 0.25 animations ^ _assetImageView.transform transform self.view layoutIfNeeded..
Drag UIView around Shape Comprised of CGMutablePaths http://stackoverflow.com/questions/13664615/drag-uiview-around-shape-comprised-of-cgmutablepaths UIGestureRecognizerStateCancelled CGPoint translation recognizer translationInView self.view desiredHandleCenter_.x translation.x desiredHandleCenter_.y translation.y self moveHandleTowardPoint desiredHandleCenter_ break We put in a default clause so..
Getting displacement from accelerometer data with Core Motion http://stackoverflow.com/questions/4449565/getting-displacement-from-accelerometer-data-with-core-motion after an acceleration. Since the acceleration goes from positive to negative or vice versa . They did it like this translation.x userAcceleration.x translation.y userAcceleration.y translation.z userAcceleration.z What should I do to find out displacement..
Detect horizontal panning in UITableView http://stackoverflow.com/questions/5426306/detect-horizontal-panning-in-uitableview recognizer.state UIGestureRecognizerStateBegan CGPoint translation recognizer translationInView favoritesTable if sqrt translation.x translation.x sqrt translation.y translation.y 1 horizontalScrolling YES BOOL declared in the header file NSLog @ horizontal.. UIGestureRecognizerStateBegan CGPoint translation recognizer translationInView favoritesTable if sqrt translation.x translation.x sqrt translation.y translation.y 1 horizontalScrolling YES BOOL declared in the header file NSLog @ horizontal And some.. view CGPoint translation gestureRecognizer translationInView cell superview Check for horizontal gesture if fabsf translation.x fabsf translation.y return YES return NO The calculation for the horizontal gesture is copied form Erik's code “Â I've tested..
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