Post not yet marked as solved
Does anyone know the best way to store core data using a calendar? The only way I could think is adding a date attribute and every time the date is changed on the calendar changing the NSPredicate to that date and if there isn’t one creating a new instance with that date as it’s date value. I’m certain this is not the best method, but I couldn’t think of any other, but I know I’m very limited in my SwiftUI knowledge. So any guidance would be greatly appreciated.
For more insight into what I’m looking for see my previous post asking for advice on what to change about my own method: https://developer.apple.com/forums/thread/708915
Post not yet marked as solved
I need to edit an attribute of a core data entity fetched in a previous view. So I put var entityName: FetchedResults.Elementin the second view to get access to the entity. But when I do this it doesn't actually get the entity it gets a copy of the entity so when changes are made to it it doesn't actually change. Basically is there a way to pass a reference to an attribute of an object to a struct so that when you set that reference to a value the entity changes?
Any help would be greatly appreciated. All the best!
I need to dismiss a sheet that doesn't call a view inside of it instead it makes it's own view. The reason this is necessary is because the view changes an attribute of an object in the previous view which won't update unless the attribute is changed in the same struct. Is there any way I could dismiss the view without swiping down in this way? Or a way I can pass a reference to the attribute so that when I change it in a separate struct it will update live in a previous one
I'm sorry for my super confusing explanation. I've simplified my actual implemented code to the following:
struct ContentView: View {
@Environment(\.dismiss) var dismiss
@State var word = ""
@State private var isSheetShowing = false
var body: some View {
NavigationView{
Form{
TextField("Change Word", text: $word)
Button(action: {
isSheetShowing.toggle()
}){
Text("Done")
.bold()
}
.sheet(isPresented: $isSheetShowing){
NavigationView{
List{
Text("Hello User")
}
.navigationBarItems(leading:
Button(action: {
dismiss()
}){
Text("Cancel")
.bold()
})
}
}
}
}
}
}
Pressing cancel in the sheet does not dismiss the view as I want it to.
I’ve been looking for how to do this for AGES and I’ve finally found and app made in Swift that has it.
So I really need a bar that stays at the bottom of my screen even when scrolling or changing views that has buttons on it that takes the user to a different view. And I don’t mean like a NavigationLink with a back button and a sliding transition. I mean I want it to open a whole new view and save the user’s location in the other view so when they press the button to return to the previous view they continue where they left off.
This is the GitHub app and they’ve executed exactly what I need:
To be clear this is what I’m talking about:
If anyone has a repository or a YouTube tutorial that has something like this I would be SO grateful. Thanks! :)
I've made a simplified version of what I'm trying to do in the included code, but basically I'm trying to make a view that edits a data model. This edit view shows up when a button in a context menu is clicked. The problem is no matter which one I open up the context menu on it always opens up whichever one I clicked first. The reference to the object in the .sheet never changes. How can I fix this??
Example Code:
import SwiftUI
class Object: Identifiable{
var id: UUID?
var title: String
var string: String
init(title: String, string: String) {
self.id = UUID()
self.title = title
self.string = string
}
}
struct ContentView: View {
@State private var showingEditView = false
@State private var objectList = [Object(title: "First", string: "Editor"), Object(title: "Second", string: "Addition"), Object(title: "Third", string: "Twelve")]
var body: some View {
NavigationView{
List{
Section("Objects"){
ForEach(objectList) { object in
NavigationLink(destination: ObjectView(obj: object)){
Text(object.title)
}
.sheet(isPresented: $showingEditView){
EditView(obj: object)
}
}
}
.contextMenu{
Button(action: {
self.showingEditView.toggle()
}){
Text("Edit Item")
}
}
}
.listStyle(InsetGroupedListStyle())
.cornerRadius(10)
.navigationBarTitle("My List")
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
struct ObjectView: View {
@State var obj: Object
var body: some View {
NavigationView{
VStack{
Text(obj.string)
}
.navigationBarTitle(obj.title)
}
}
}
struct EditView: View {
@Environment(\.dismiss) var dismiss
@State var obj: Object
@State var word = ""
var body: some View {
NavigationView{
Form{
TextField("Change Word", text: $word)
.onAppear(perform: {
word = obj.string
})
}
.navigationBarItems(trailing:
Button(action: {
dismiss()
}){
Text("Done")
.bold()
})
}
}
}
Any help would be greatly appreciated. All the best!
Post not yet marked as solved
I'm sorry I know this is basic swift, but how do I get I make the selection an optional return? I know it's with ?? "" with a string, but I don't know how to do it with a date type.
Also how do I get a navigationBarTitle to work on this view? The "My Calendar" doesn't show up when I run the code.
import SwiftUI
struct ReciPrep: View {
@State private var date: Date? = ni
@Environment(\.calendar) var calendar
@State private var showingAddView = false
var body: some View {
VStack{
DatePicker("Calendar", selection: $date, in: Date.now...,displayedComponents: [.date]) //Error: Cannot convert value of type 'Binding<Date?>' to expected argument type 'Binding<Date>'
.datePickerStyle(.graphical)
Spacer()
}
.navigationBarTitle("My Calendar")
}
}
Any help would be greatly appreciated. Have a good day!
Anyone have any idea as to how to embed an SwiftUI View in a UITabBarController. From what I understand they were made to contain views made from UIKit and my views are made from SwiftUI so I’m not exactly sure how to use a UITabBarController in the storyboard with the views that I have. Any help would be greatly appreciated!
Post not yet marked as solved
Anyone have any idea as to how to embed an SwiftUI View in a UITabBarController. From what I understand they were made to contain views made from UIKit and my views are made from SwiftUI so I’m not exactly sure how to use a UITabBarController in the storyboard with the views that I have.
Any help would be greatly appreciated!
Post not yet marked as solved
How do I make it so that these two textfields aren't connected? They should have two separate backgrounds.
Post not yet marked as solved
I need a wheel picker for hours and minutes. I've found stuff online but it does have the "Hours" and "Minutes" right after and it isn't as compact. Is there a newer way to accomplish this to look exactly like it does in the timer app?
Post not yet marked as solved
I need a picker exactly like the one in the picture (Apple’s timer app), but without the seconds. I’ve found that this is a UIDatePicker in the .countDownTimer mode. But my program runs on swiftUI instead of UIKit. Is there any way I could still use this or is there a swiftUI version? Thanks!
So I've found a way to convert fetched results to an array of the same data type, and not only that but filter them with the fetch request given a string:
func searchResults(searchingFor: String)->[Recipe]{
var filteredRecipeList=[Recipe]()
@FetchRequest(sortDescriptors: [SortDescriptor(\.date, order: .reverse)], predicate: NSPredicate(format: "title CONTAINS[c] %@",searchingFor)) var filteredResults: FetchedResults<Recipe>
for recipe in filteredResults {
filteredRecipeList.append(recipe)
}
return filteredRecipeList
}
To clarify, this would ideally return an array with a list of Recipes that contain the given string in the title. In theory this should work just fine, but I'm getting a weird error. I've never seen an error like this and I'm not sure how to understand it. It is purple with a yellow warning. The error says "Accessing StateObject's object without being installed on a View. This will create a new instance each time." How do I get around this issue to accomplish what I'm trying to accomplish.
Thanks in advance for any help whatsoever. I'll upvote anyone with any bit of helpful information. Have a good one!
So I was making a relationship between two entities in my data model and got a good ways in when I tried to run it and got a bunch of weird errors. Did I do something wrong to make this happen and if so what do I need to do? I've troubleshooted enough to realize that it happens as soon as I create a new entity. These are the errors.
WeagleWeagle.