2014/10/15 下午 10:09:04

iphone Programming Glossary: finger

Intercepting/Hijacking iPhone Touch Events for MKMapView

http://stackoverflow.com/questions/1121889/intercepting-hijacking-iphone-touch-events-for-mkmapview

detect when the user is zooming panning. I don't need to detect a map pan or zoom i just care if the user has put a finger down anywhere in the MKMapView. If you need to detect zooming or panning with 100 recall and precision it might be more..

Dragging an UIView inside UIScrollView

http://stackoverflow.com/questions/1481826/dragging-an-uiview-inside-uiscrollview

the drag speed the faster I drag the quicker the tile falls . Any ideas on how to keep the tile glued to the dragging finger Thanks in advance iphone objective c share improve this question I was struggling with this same problem I was trying..

Notification of or detecting screenshot being taken?

http://stackoverflow.com/questions/2121970/notification-of-or-detecting-screenshot-being-taken

might work although it will totally go against user interface guidelines I'm sure. If you force the user to have their finger on the screen for the image to show then I don't think they can create screenshots. Because as soon as you press the home.. as soon as you press the home lock keys to actually take the screenshot the screen seems to behave as if there are no fingers touching it. Try taking a screenshot while moving between home screens to see what I mean. Not a perfect solution by any..

UILongPressGestureRecognizer gets called twice when pressing down

http://stackoverflow.com/questions/3319591/uilongpressgesturerecognizer-gets-called-twice-when-pressing-down

Long press gestures are continuous. The gesture begins UIGestureRecognizerStateBegan when the number of allowable fingers numberOfTouchesRequired have been pressed for the specified period minimumPressDuration and the touches do not move beyond.. the allowable range of movement allowableMovement . The gesture recognizer transitions to the Change state whenever a finger moves and it ends UIGestureRecognizerStateEnded when any of the fingers are lifted. Now You Can Track The State Like This.. transitions to the Change state whenever a finger moves and it ends UIGestureRecognizerStateEnded when any of the fingers are lifted. Now You Can Track The State Like This void handleLongPress UILongPressGestureRecognizer sender if sender.state..

Stop UIWebView from “bouncing” vertically?

http://stackoverflow.com/questions/500761/stop-uiwebview-from-bouncing-vertically

know how to stop a UIWebView from bouncing vertically I mean when a user touches their iphone screen drags their finger downwards and the webview shows a blank spot above the web page I had loaded I've looked at the following possible solutions..

iPhone smooth sketch drawing algorithm

http://stackoverflow.com/questions/5076622/iphone-smooth-sketch-drawing-algorithm

as seen here And I am looking for any suggestion to smooth the drawing Basically what I did is when user places a finger on the screen I called void touchesBegan NSSet touches withEvent UIEvent event then I collect a single touch in an array.. a single touch in an array with void touchesMoved NSSet touches withEvent UIEvent event and when the user lefts a finger from the screen I called void touchesEnded NSSet touches withEvent UIEvent event then I draw all the points in the array..

Change Default Scrolling Behavior of UITableView Section Header

http://stackoverflow.com/questions/664781/change-default-scrolling-behavior-of-uitableview-section-header

height of YOUR section 0 header. If you use a number that is bigger than your section 0 header height you'll see that finger feel is affected try like 1000 and you'll see the bounce behaviour is sort of weird at the top . if the number matches your..

Scrolling with two fingers with a UIScrollView

http://stackoverflow.com/questions/787212/scrolling-with-two-fingers-with-a-uiscrollview

with two fingers with a UIScrollView I have an app where my main view accepts both touchesBegan and touchesMoved and therefore takes in.. I have an app where my main view accepts both touchesBegan and touchesMoved and therefore takes in single finger touches and drags. I want to implement a UIScrollView and I have it working but it overrides the drags and therefore my.. overrides the drags and therefore my contentView never receives them. I'd like to implement a UIScrollview where a two finger drag indicates a scroll and a one finger drag event gets passed to my content view so it performs normally. Do I need create..

How to detect when a UIScrollView has finished scrolling

http://stackoverflow.com/questions/993280/how-to-detect-when-a-uiscrollview-has-finished-scrolling

willDecelerate and scrollViewDidEndDecelerating . The first one is always called after the user lifts their finger. If they scrolled fast enough to result in deceleration willDecelerate will be YES and the second method will be called..

Improving Finger Painting Performance

http://stackoverflow.com/questions/1355527/improving-finger-painting-performance

Finger Painting Performance Simple Painting Fingering the iPhone screen paints temporary graphics to a UIView. These temporary.. Finger Painting Performance Simple Painting Fingering the iPhone screen paints temporary graphics to a UIView. These temporary graphics are erased after a touch ends and are..

Disable scrolling in an iPhone web application?

http://stackoverflow.com/questions/2890361/disable-scrolling-in-an-iphone-web-application

iphone scrolling share improve this question Change to the touchstart event instead of touchmove . Under One Finger Events it says that no events are sent during a pan so touchmove may be too late. I added the listener to document not body...

iOS Pinch Scale and Two Finger Rotate at same time

http://stackoverflow.com/questions/8108768/ios-pinch-scale-and-two-finger-rotate-at-same-time

Pinch Scale and Two Finger Rotate at same time Here is my code viewDidLoad UIPinchGestureRecognizer pinch UIPinchGestureRecognizer alloc initWithTarget.. self action @selector pinch self.canvas addGestureRecognizer pinch pinch.delegate self UIRotationGestureRecognizer twoFingersRotate UIRotationGestureRecognizer alloc initWithTarget self action @selector pinchRotate self canvas addGestureRecognizer.. UIRotationGestureRecognizer alloc initWithTarget self action @selector pinchRotate self canvas addGestureRecognizer twoFingersRotate twoFingersRotate.delegate self Code For Pinches and Rotates BOOL gestureRecognizer UIGestureRecognizer gestureRecognizer..

iPhone: Tracking/Identifying individual touches

http://stackoverflow.com/questions/913086/iphone-tracking-identifying-individual-touches

touch locationInView self CGPoint previousLocation touch previousLocationInView self if touch phase UITouchPhaseBegan Finger finger finger.start.x currentLocation.x finger.start.y currentLocation.y finger.end finger.start finger.hasMoved false finger.hasEnded.. finger.start.y currentLocation.y finger.end finger.start finger.hasMoved false finger.hasEnded false touchScreen AddFinger finger else if touch phase UITouchPhaseEnded touch phase UITouchPhaseCancelled Finger finger touchScreen GetFingerHandle.. false touchScreen AddFinger finger else if touch phase UITouchPhaseEnded touch phase UITouchPhaseCancelled Finger finger touchScreen GetFingerHandle i finger.hasEnded true else if touch phase UITouchPhaseMoved Finger finger touchScreen..