multi-touch

问题 You know how Mario just keeps running to the right when you press and hold the right-button on the D-Pad? In the same manner, I want my UIButton to continuously fire its action for the duration that it is held down. Is this possible for a UIButton? If not, is this possible to do with a UIImageView by overriding a touch handling method in a certain way? Actually, before trying to do get this done with UIButton I had some UIImageViews (Arranged to function as a D-Pad) that were checked by touch

问题 The problem with tracking multi-touches (at least two finger touches) on the following frame device. White circles are LEDs and black circles are receivers. When user moves fingers inside this frame we can analyze which receivers received light from the LEDs and which has not received. Based on that we need to track movements of the fingers somehow. First problem that we has separate x and y coordinates. What is the effective way to combine them? Second problem concerns analyzing coordinates

问题 I have a weird problem in my game. I'm using 2 joysticks, one for shooting/aiming and one for moving my character. For some reason my multitouch method only registers one movement at a time. The second pointer gets registered when I press down, but my ACTION_MOVE only works for the first pointer. This is weird cus this means it does take more then one pointer, but it cant move more then one pointer at the same time . Ive asked this on gamedev.stackexchange and its been active for about a week

问题 I try to implement a multi-touch ui (in a brownfield project) with the ManipulationDelta event of wpf. But I only get values for translation, but never for scale or rotation. My test code looks like this: Private Sub ScrollViewerViewModelManipulationDelta(sender As Object, e As Input.ManipulationDeltaEventArgs) Handles Me.ManipulationDelta Dim transform As MatrixTransform = TryCast(RenderTransform, MatrixTransform) If transform Is Nothing Then transform = New MatrixTransform(RenderTransform

问题 :) I am working on intercepting, and resending gestures sent to a scrollview. What I want to do: Kill all gestureRecognizers in the scrollview. I have accomplished this. Add new gestureRecognizers in the scrollview. I have accomplished this as well. Make the new recognizers behave the same as the old ones. I have NOT accomplished this, and I need help doing so. The only new recognizer I have added is a pan gesture recognizer, which requires at least two fingers. I want this to behave exactly

问题 Any buddy have Custom Text View with Rotate, Zoom In, Zoom Out & Move functionality like MutiTouch Image View like this http://judepereira.com/blog/multi-touch-in-android-translate-scale-and-rotate/ in android? I Want exactly like this screen shots. 1. In that screen draw simple text. 2. In that screen when i zoom this view Text auto wrap. 3. In that screen Move Text on view. 4. In that screen Rotate Text. This all functionality do on TextView touch. 回答1: I used https://github.com/jcmore2

问题 I have an imageView nested inside of a scrollView that allows me to view an image, pinch to zoom, and pan around if I am zoomed in enough. Using a custom GestureRecognizer, I have (per the request of the person I'm building this app for) overridden the default behavior of the one finger pan so that it does something other than pan. This works perfectly. Now the problem is that I still need the ability to pan around the image like I could with the one finger pan, I just need this to now be

问题 I want to write a multi-touch functionality in a service.How can I change single-touch to multi-touch in this servic? I found in this case e.getPointerCount() always == 1. Any idea? Thanks at first! public void onCreate(){ super.onCreate(); startForeground(1, new Notification()); mViewService = ViewService.getInstance(this); mViewService.addView(ViewService.TOUCH_VIEW); mViewService.getView(ViewService.TOUCH_VIEW).setOnTouchListener(new TouchListener()); } class TouchListener implements View

问题 Several multitouch drawing applications have implemented features that prevent interference when a user rests their palm on the screen while drawing. How do they filter out touch events from the palm of the hand, but allow the correct input from the drawing finger or stylus? 回答1: Ignore any multi-touch inputs that are close to each other, only taking the data from the single point (the finger). 回答2: Take the top y component from the group of touches. 来源： https://stackoverflow.com/questions

问题 I currently use the WP7 tookit's GestureService in a few of my applications in order to perform Flick and Pinch/Zoom gestures on Silverlight UI elements. However, seeing that the service has been deprecated, I am trying to find a replacement library that can do the perform all the low level calculations in a similar fashion. I've been reading that hooking into ManipulationDelta is the way to go, but I'd rather not delve into that if I don't have to - is there an alternative that anyone is