gesture

问题 I trying to make keyboard extension on SwiftUI . My keyboard uses gestures a lot. But gestures up from keys located near the screen bottom are to be recognized as a system gesture. As it was said here I tried to use preferredScreenEdgesDeferringSystemGestures parameter of UIInputViewController but it does not help. here is my code: class MyController<Content: View>: UIHostingController<Content>{ open override var preferredScreenEdgesDeferringSystemGestures: UIRectEdge{ return [.bottom] } }

问题 How do I disable / escape drag down gesture within the Bottom Sheet Modal so the user can interact within the modal without accidentally closing the modal? Updated below with the actual modal bottom sheet. return showModalBottomSheet( context: context, builder: (BuildContext context) { ... } } 回答1: you can try to wrap builder's result with GestureDetector with onVerticalDragStart = (_) {} showModalBottomSheet( context: context, builder: (context) => GestureDetector( child: **any_widget_here**

问题 How do I disable / escape drag down gesture within the Bottom Sheet Modal so the user can interact within the modal without accidentally closing the modal? Updated below with the actual modal bottom sheet. return showModalBottomSheet( context: context, builder: (BuildContext context) { ... } } 回答1: you can try to wrap builder's result with GestureDetector with onVerticalDragStart = (_) {} showModalBottomSheet( context: context, builder: (context) => GestureDetector( child: **any_widget_here**

问题 I am using offset and gesture modifiers to move a circle around the screen. When I use this code, everything works as expected: import SwiftUI struct MovingCircle: View { @State private var dragged = CGSize.zero var body: some View { Circle() .offset(x: self.dragged.width) .frame(width: 20, height: 20) .gesture(DragGesture() .onChanged{ value in self.dragged = value.translation } .onEnded{ value in self.dragged = CGSize.zero } ) } } However, I do not want to have the circle reset to the

问题 The following snippet is just a minimalized version of my real situation. In my real situation these GestureDetectors are inside different widgets. My problem is, that the onVerticalDragUpdate event is only received by the inner GestureDetector. I even set the behavior of the inner GestureDetector to HitTestBehavior.translucent , which means that the event should bubble up to parent widgets. Or am I getting there something wrong? void main() { debugPaintPointersEnabled = true; runApp(MyApp())

问题 The following snippet is just a minimalized version of my real situation. In my real situation these GestureDetectors are inside different widgets. My problem is, that the onVerticalDragUpdate event is only received by the inner GestureDetector. I even set the behavior of the inner GestureDetector to HitTestBehavior.translucent , which means that the event should bubble up to parent widgets. Or am I getting there something wrong? void main() { debugPaintPointersEnabled = true; runApp(MyApp())

问题 I have enabled gestures like this: gesture.enabled: true but the map doesn't start panning as soon as I press and start moving the mouse pointer instead the map start panning when I have already dragged the mouse pointer over 10 pixels or so! Can somebody please help me to let me start panning the map as soon as the mouse pointer start dragging instead waiting for the 10 or so pixels drag wait? 回答1: If the MapGestureArea source code is analyzed then it is observed that the threshold used

问题 I have enabled gestures like this: gesture.enabled: true but the map doesn't start panning as soon as I press and start moving the mouse pointer instead the map start panning when I have already dragged the mouse pointer over 10 pixels or so! Can somebody please help me to let me start panning the map as soon as the mouse pointer start dragging instead waiting for the 10 or so pixels drag wait? 回答1: If the MapGestureArea source code is analyzed then it is observed that the threshold used

问题 I have a stack with some widget, and I want tat the most in top widget blocks all the gestures to the underneath widgets. I've tried with a GestureDetector and opaque behaviour but does not work. What is the correct approach? 回答1: If you have shared some code, that would be better, so now I can just give you an idea, you can try AbsorbPointer . AbsorbPointer(child: YourWidget()) 回答2: You can use the IgnorePointer widget to block any gesture for it's child. IgnorePointer( child: MyWidget(),

问题 We are using Navigation Drawer in our application to show side menu. In a few of the screens we don't want to show this navigation drawer once user tried to do left/right gestures. So, for that, we are trying to hide a particular screen - gestures/navigationdrawer - but it's not working. When the user swipes (left/right) the drawer still opens. const AppNavigator = StackNavigator( { // Drawer: { screen: Drawer }, Register: { screen: Register, navigationOptions: ({ navigation }) => ({