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2014/10/15 ¤U¤È 10:15:05
iphone Programming Glossary: translation.yHow 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 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 state UIGestureRecognizerStateEnded..
UIView animation jumps at beginning http://stackoverflow.com/questions/12535647/uiview-animation-jumps-at-beginning 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 completion ^ BOOL..
Drag UIView around Shape Comprised of CGMutablePaths http://stackoverflow.com/questions/13664615/drag-uiview-around-shape-comprised-of-cgmutablepaths 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 clang won't warn us about the other..
Getting displacement from accelerometer data with Core Motion http://stackoverflow.com/questions/4449565/getting-displacement-from-accelerometer-data-with-core-motion 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 from the acceleration in some..
Detect horizontal panning in UITableView http://stackoverflow.com/questions/5426306/detect-horizontal-panning-in-uitableview 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 code to determine what.. 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 code to determine what cell is being.. 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 this with iOS 4.3...
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