gesture

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 have view hierarchy in SwiftUI like ParentView { //other views ChildView().highPriorityGesture(TapGesture().onEnded { print("Tap!") }) // other views }self.gesture(tap) And I want to have parent view handle all taps on the screen in spite of cases when user taps onto ChildView. Now both closures executes. How to stop tap gesture events propagating up view hierarchy? 回答1: Well, probably there is some specific in which exactly ChildView and ParentView , because as tested below (Xcode 11.2 /

问题 I have view hierarchy in SwiftUI like ParentView { //other views ChildView().highPriorityGesture(TapGesture().onEnded { print("Tap!") }) // other views }self.gesture(tap) And I want to have parent view handle all taps on the screen in spite of cases when user taps onto ChildView. Now both closures executes. How to stop tap gesture events propagating up view hierarchy? 回答1: Well, probably there is some specific in which exactly ChildView and ParentView , because as tested below (Xcode 11.2 /

问题 I have view hierarchy in SwiftUI like ParentView { //other views ChildView().highPriorityGesture(TapGesture().onEnded { print("Tap!") }) // other views }self.gesture(tap) And I want to have parent view handle all taps on the screen in spite of cases when user taps onto ChildView. Now both closures executes. How to stop tap gesture events propagating up view hierarchy? 回答1: Well, probably there is some specific in which exactly ChildView and ParentView , because as tested below (Xcode 11.2 /

问题 I'm trying to detect when a finger first makes contact with a view in SwiftUI. I could do this very easily with UIKit Events but can't figure this out in SwiftUI. I've tried a DragGesture with minimum movement of 0 but it still won't change until your finger moves. TapGesture will only work when you lift your finger and LongPressGesture will not trigger fast enough no matter what I set the parameters to. DragGesture(minimumDistance: 0, coordinateSpace: .local).onChanged({ _ in print("down")})

问题 I'm trying to make a TextView that you can move around like snapchat does. I have made something similar to it, although when you try and scale while rotates, it tends to stretch horizontally infinitely and dragging can be a little buggy at times. I have this: func panGesture(pan: UIPanGestureRecognizer) { print("Being Dragged") if pan.state == .began { textViewOrigin = pan.location(in: textView) }else { let location = pan.location(in: view) // get pan location textView.frame.origin = CGPoint

问题 I got a task in which I had to make a something like crossword puzzle. First of all, I will show you the exact image which I want to achieve. I have tried using many possible ways like tried using GridView and Table widgets provided in flutter. Tried putting GridView/Table inside GestureDetector but the problem is that I can't get the word on which the user dragged with his finger. The alphabets and the correct word is coming from server-side. Also when the user dragged on some alphabets then

问题 I'm creating a text field like Text or RichText. And after that, I want to zoom in/out the size of text using pinching. For now, I tried implementing GestureDetector but it zooms in/out with one finger too. And it is really hard to aim pinching detection. Sometimes is freezing. I add video when after pinching freeze and suddenly get bigger. The second video is with the case that image zoom in only when I tap on the text with one finger and move to up left corner. The ideal implementation is

问题 I'm creating a text field like Text or RichText. And after that, I want to zoom in/out the size of text using pinching. For now, I tried implementing GestureDetector but it zooms in/out with one finger too. And it is really hard to aim pinching detection. Sometimes is freezing. I add video when after pinching freeze and suddenly get bigger. The second video is with the case that image zoom in only when I tap on the text with one finger and move to up left corner. The ideal implementation is

问题 I'm creating a text field like Text or RichText. And after that, I want to zoom in/out the size of text using pinching. For now, I tried implementing GestureDetector but it zooms in/out with one finger too. And it is really hard to aim pinching detection. Sometimes is freezing. I add video when after pinching freeze and suddenly get bigger. The second video is with the case that image zoom in only when I tap on the text with one finger and move to up left corner. The ideal implementation is