uipangesturerecognizer

问题 iOS 7 provides for a UIScreenEdgePanGestureRecognizer which detects swipes in from edges of the screen. Can this gesture be simulated using the iOS7 simulator in Xcode? Clicking and dragging outside the screen area just moves the whole simulator frame around. 回答1: You don't have to swipe across the edges to trigger a UIScreenEdgePanGestureRecognizer , just start very close to the edge. It works if I start not more than ~15 points from the edge. (this if for the simulator. I never tested this

问题 iOS 7 provides for a UIScreenEdgePanGestureRecognizer which detects swipes in from edges of the screen. Can this gesture be simulated using the iOS7 simulator in Xcode? Clicking and dragging outside the screen area just moves the whole simulator frame around. 回答1: You don't have to swipe across the edges to trigger a UIScreenEdgePanGestureRecognizer , just start very close to the edge. It works if I start not more than ~15 points from the edge. (this if for the simulator. I never tested this

问题 I have a custom scroll view that works well before iOS 13 that uses UIPanGestureRecognizer: _panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)]; _panRecognizer.delegate = self; - (void)handlePan:(UIGestureRecognizer *)gestureRecognizer { UIPanGestureRecognizer* pgr = (UIPanGestureRecognizer*)gestureRecognizer; if (pgr.state == UIGestureRecognizerStateChanged) { // do something } } Now it didn't work well with iOS 13. The handlePan function does

问题 I have a custom scroll view that works well before iOS 13 that uses UIPanGestureRecognizer: _panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)]; _panRecognizer.delegate = self; - (void)handlePan:(UIGestureRecognizer *)gestureRecognizer { UIPanGestureRecognizer* pgr = (UIPanGestureRecognizer*)gestureRecognizer; if (pgr.state == UIGestureRecognizerStateChanged) { // do something } } Now it didn't work well with iOS 13. The handlePan function does

问题 I have a custom scroll view that works well before iOS 13 that uses UIPanGestureRecognizer: _panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)]; _panRecognizer.delegate = self; - (void)handlePan:(UIGestureRecognizer *)gestureRecognizer { UIPanGestureRecognizer* pgr = (UIPanGestureRecognizer*)gestureRecognizer; if (pgr.state == UIGestureRecognizerStateChanged) { // do something } } Now it didn't work well with iOS 13. The handlePan function does

问题 The bounty expires in 2 days . Answers to this question are eligible for a +50 reputation bounty. Mitch Mustain is looking for an answer from a reputable source : Just get a a uiimageview to move using uipangesutre and when text is enter into the textfield. The imageview does not return to its original position. My swift code below has a image view connected to a pangesture. When something is entered into a textfield when after the image view is moved. The image view reverts back to its

问题 I am creating an app that has a user interface similar to Tinder. By this, I mean that there are three primary view controllers that can be "panned" between. The user can simply drag to move to any of the three view controllers. I have implemented something similar in my app with one important caveat: it utilizes swipe gesture recognizers and not pan gesture recognizers. The end-result looks and feels very unnatural. This is how I'd like my user interface to behave (ignore the Gecko): This is

问题 I am creating an app that has a user interface similar to Tinder. By this, I mean that there are three primary view controllers that can be "panned" between. The user can simply drag to move to any of the three view controllers. I have implemented something similar in my app with one important caveat: it utilizes swipe gesture recognizers and not pan gesture recognizers. The end-result looks and feels very unnatural. This is how I'd like my user interface to behave (ignore the Gecko): This is

问题 I am creating an app that has a user interface similar to Tinder. By this, I mean that there are three primary view controllers that can be "panned" between. The user can simply drag to move to any of the three view controllers. I have implemented something similar in my app with one important caveat: it utilizes swipe gesture recognizers and not pan gesture recognizers. The end-result looks and feels very unnatural. This is how I'd like my user interface to behave (ignore the Gecko): This is

问题 I want to get the velocity of a pan gesture, and I thought to use the sender's velocity property, but it doesn't seem to work: @IBAction func handleGesture(sender: AnyObject) { let v = sender.velocity } but it throws an error saying : "ambiguous use of 'velocity'" If that's not the way to access the velocity of a pan gesture, what is? 回答1: UIPanGestureRecognizer does not have property named velocity . You should use velocityInView method. func userPanned(sender: UIPanGestureRecognizer) { let