I'm trying to make a button that does two different things based on if you tap or if you long press on it. The following code seems like it should work, but only the long press event works. if I just tap it, I see the animation for the button being pressed, but it doesn't do anything until I long press on it.
Button(action: {}) {
Image("no_image_taken")
.resizable()
.aspectRatio(contentMode: .fit)
.cornerRadius(10)
.gesture(TapGesture()
.onEnded({_ in self.showImagePicker = false}))
.gesture(LongPressGesture(minimumDuration: 1)
.onEnded({_ in self.showImagePicker = true}))
}.sheet(isPresented: self.$showImagePicker) {
PhotoCaptureView(useExistingPhoto: self.$useExistingPhoto, showImagePicker: self.$showImagePicker, image: self.$optionalImage)
}
I based my code on the answer given here, but mine still isn't working.
You can just put your gestures actions on Image and there is s no need to be on Button in this purpose.
Related
I want to register a certain drag gesture on any SwiftUI view, including ScrollViews simultaneously with any other gestures (i.e. without influencing existing gestures). However, when adding a DragGesture on a ScrollView as follows, it seems like the gesture is immediately swallowed by the ScrollView.
ScrollView {
Rectangle()
.frame(width: 500, height: 500)
}
.simultaneousGesture(
DragGesture()
.onChanged { value in
print("changed:", value.translation)
}
.onEnded { value in
print("ended:", value.translation)
}
)
When I drag the Rectangle, this code prints:
changed: (3.0, 16.666671752929688)
for example.
So onChanged is only called once, onEnded is never called.
Is there a way to make DragGestures work with ScrollViews as well?
Note:
I tried to find a workaround with GestureState and the updating(_:) modifier as well, but it didn't work either.
I am trying to create a situation in a SwiftUI Mac app where when I click a Button inside a parent view, only the Button's action is trigger—not any of the tap gestures attached to its parent.
Here is a simple example that reproduces the problem:
import SwiftUI
struct ContentView: View {
var body: some View {
VStack(spacing: 30){
Button("Button"){
print("button clicked")
}
.padding(5)
.background(Color.blue)
.buttonStyle(PlainButtonStyle())
}
.frame(width: 500, height: 500)
.background(Color.gray)
.padding(100)
.gesture(TapGesture(count: 2).onEnded {
//Double click (open message in popup)
print("double click")
})
.simultaneousGesture(TapGesture().onEnded {
if NSEvent.modifierFlags.contains(.command){
print("command click")
}else{
print("single click")
}
})
}
}
Clicking the button triggers both button clicked and single click.
If you comment out the buttonStyle...
//.buttonStyle(PlainButtonStyle())
It works how I want it to. Only button clicked is fired.
It doesn't seem to matter which button style I use, the behavior persists. I really need a custom button style on the child button in my situation, so how do I get around this?
If you replace your .simultaneousGesture with a regular .gesture it works for me – and still recognizes the outer single and double taps.
I have a horizontal ScrollView on top of a MapView.
The ScorllView is a collection of Buttons. It is weird that the buttons in the ScrollView are sometime tapable and sometimes not. First tap always works but after that I have to scroll a bit, tap around different areas in the button, make some secret prayers and then it works!
I tried disabling/removing all other components in the view, but still unable to figure out the root cause.
Has anyone experience this ?
I stuck with a same issue with horizontal ScrollView on top and List. While debugging I added empty .onTapGesture to ScrollView and it somehow fix my issue.
VStack(spacing: 0) {
ScrollView(.horizontal) {
HStack {
Button("one") {}
Button("two") {}
Button("three") {}
}
}
.onTapGesture { // <---- fix
}
List {
}
}
I also faced the same issue for Horizontal Scroll view in Swiftui dark theme "CameraTimerItem" buttons not clickable (Problem with dark theme only). Then I put a onTapGesture without any action. It's starts to work normally. I think it's a error of SwiftUI.
VStack (alignment:.center){
ScrollView(.horizontal, showsIndicators: false) {
HStack{
ForEach(timeSlots,id: \.self) { item in
CameraTimerItem(cellTitle: item)
}
}
.frame(width: AppUtils.width, alignment: .center)
}
.onTapGesture {
// <---- This is the solution
}
}
To anyone else having this issue, instead of adding an empty .onTapGesture view modifier, check that any HStacks in the ScrollView hierarchy have a .contentShape(Rectangle()) modifier. By default, HStacks don't accept taps in between their child views, and depending on your child view's layout this can cause taps to be missed even when it looks like they should be landing. .contentShape(Rectangle()) makes the entire frame of the HStack tappable.
My project is target for iOS 13 onwards hence could not use PageTabViewStyle(). I tried with Mr. John suggestion from this link
SwiftUI create image slider with dots as indicators
Now I need to open the detail view on clicking the image in the slideshow. But now when I try to move the images the detail view is opening and could not move the images as in Pageview. I implemented the below code. Please let me know the solution to fix this. Thanks in advance.
PagingView(index: $index.animation(), maxIndex: images.count - 1){
ForEach(articles, id: \.self) { article in
NavigationLink(destination: ArticleDetailUIView(article: articles[self.index], isBookmark: false) , isActive: $areYouGoingToArticleView)
{
Image(article.image)
.resizable()
.scaledToFill()
.accessibility(identifier: "articleImage")
}
}
}
.aspectRatio(4/3, contentMode: .fit)
.clipShape(RoundedRectangle(cornerRadius: 15))
After few browsing, the workaround was using the stepper to move around the slide show instead of scrolling the images. I added the below lines.
Stepper("Index: (index)", value: $index.animation(.easeInOut), in: 0...images.count-1)
.font(Font.body.monospacedDigit())
.labelsHidden()
I use the following code to create a Link with only an image (no text) and to add a hoverEffect:
Link(destination: URL(string: webURL)!, label: {
Image("Home", bundle: Bundle.module)
.resizable()
.renderingMode(.template)
.frame(width: 30, height: 30)
.aspectRatio(contentMode: .fit)
.padding(6)
.contentShape(RoundedRectangle(cornerRadius: 5, style: .continuous))
.hoverEffect(.highlight)
})
The hoverEffect causes the link to ignore the first tap. The user must double tap to activate the link. Has any one else sen this behavior and if so, what do I need to do to activate the link on the first tap?
Solved: If I move the last 3 lines out of the Image and onto the Link, all works well.