multi-touch

问题 I've been working in a game and I'm trying to make the controllers, nothing too complicated and to do this I need to track 2 inputs(fingers): 1 the fire button and move keys.(up, down, left, right) This is the problem: finger 1 is down, finger 2 is down, finger 1 goes up thinking it's 2 and then finger 2 goes up thinking it's 1. D/Controlls(18849): Action Down 1 D/Controlls(18849): Coordinates 267.7908 415.24274 D/Controlls(18849): Action Pointer Down 2 D/Controlls(18849): Coordinates 281

问题 I've been working in a game and I'm trying to make the controllers, nothing too complicated and to do this I need to track 2 inputs(fingers): 1 the fire button and move keys.(up, down, left, right) This is the problem: finger 1 is down, finger 2 is down, finger 1 goes up thinking it's 2 and then finger 2 goes up thinking it's 1. D/Controlls(18849): Action Down 1 D/Controlls(18849): Coordinates 267.7908 415.24274 D/Controlls(18849): Action Pointer Down 2 D/Controlls(18849): Coordinates 281

问题 I've been working in a game and I'm trying to make the controllers, nothing too complicated and to do this I need to track 2 inputs(fingers): 1 the fire button and move keys.(up, down, left, right) This is the problem: finger 1 is down, finger 2 is down, finger 1 goes up thinking it's 2 and then finger 2 goes up thinking it's 1. D/Controlls(18849): Action Down 1 D/Controlls(18849): Coordinates 267.7908 415.24274 D/Controlls(18849): Action Pointer Down 2 D/Controlls(18849): Coordinates 281

问题 Is there a way in SwiftUI to track multiple gestures at once? I want my one main view to be able to keep track of multiple fingers dragging at once. ZStack { Color.black .edgesIgnoringSafeArea(.all) .gesture(DragGesture(minimumDistance: 0) .onChanged { (value) in //some logic }.onEnded { (value) in //more logic }) //other code } I have this code however I can only ever have one drag gesture being processed at a time. If one finger is dragging and then I try to add another one the first one

问题 I am trying to set up proper multitouch support in my android game for some time. For input handling I use my InputHandler(implementing InputProcessor). I use something like this @Override public boolean touchDown(int screenX, int screenY, int pointer, int button) { Vector3 touchPos = new Vector3(Gdx.input.getX(), Gdx.input.getY(), 0); screen.renderer.cam.unproject(touchPos); if (left.isTouchDown((int) touchPos.x, (int) touchPos.y)) { player.setMovingLeft(true); player.leftPressed(); } and

问题 I am about to start development of a multi-touch application. I need to decide between WPF and XNA. Which would run faster ? WPF already has libraries to support multi-touch via TUIO input. Does anyone know a similar library or even just sample code to drag/rotate/move objects in XNA ? Thanks! SW. 回答1: Touch is just another way of getting input from the user. Whether you route this input to an XNA app or WPF app depends more on what you want to do in the app. XNA is a lower level api for

问题 i had searched about Multitouch & i got lots of example related to pich zoom in & zoom out & getting multiple touch coordinates but i want to use multitouch to draw a circle on a view.. i tried this but when i draw it the coordinates changes the circle didn't draw at the exact place where i touch the screen.. here is the CODE.... public class TestMultiTouchActivity extends Activity { public class MultiTouchView extends View { // In this test, handle maximum of 2 pointer final int MAX_POINT

问题 Can I get the value of MotionEvent.getRawX()/getRawY() of other pointers ? MotionEvent.getRawX() api reference The api says that uses getRawX/getRawY to get original raw X/Y coordinate, but it only for 1 pointer(the last touched pointer), is it possible to get other pointer's raw X/Y coordinate ? 回答1: Indeed, the API doesn't allow to do this, but you can compute it. Try that : public boolean onTouch(final View v, final MotionEvent event) { int rawX, rawY; final int actionIndex = event

问题 Can I get the value of MotionEvent.getRawX()/getRawY() of other pointers ? MotionEvent.getRawX() api reference The api says that uses getRawX/getRawY to get original raw X/Y coordinate, but it only for 1 pointer(the last touched pointer), is it possible to get other pointer's raw X/Y coordinate ? 回答1: Indeed, the API doesn't allow to do this, but you can compute it. Try that : public boolean onTouch(final View v, final MotionEvent event) { int rawX, rawY; final int actionIndex = event

问题 I wonder if is the Android multi-touch support reliable? I've read it suffers from some problems. I also wonder, how can I define custom multi-touch gestures? Like: 3 fingers rotate or 3 fingers stay static and fourth is moving. I've come across some resources (Gestures or MotionEvent on developer.android.com) but nothing states it clearly. Regards, Zdenek 回答1: I've dug around in the API and found a way to perform gestures like pinch / reverse pinch, so I believe the gestures you describe are