Hello guys,
this is my first post to this forum and really hope that somebody can help me here.
I would highly appreciate every help!
I am writing my first app with Swift UI (never used UIKit before) which I want to publish later on.
This is also my first app which has CoreData implemented.
For example I use the following entities:
Family, Person
1 Persons can have 1 Family
1 Family can have many Persons
My App is structured as the following:
ContentView:
Contains a TabView with 2 other views in it. A Settings View and a View with a LazyVGrid.
LazyVGrid View:
This View shows a GridItem for every Family. I get the Families with the following Fetchrequest:
Every GridItem is linking to a "FamilyDetailView" via NavigationLink. So i pass the family as the following:
In the FamilyDetailView i get the Family with a property wrapper:
In this FamilyDetailView is the problem i have.
Here I also have a LazyVGrid, which shows 1 NavigationLink for every Person in the Family in a GridItem . In this GridItem I also show for example the "name" of the Person.
When tapping the NavigationLink i get to the last View, the PersonDetailView. This View gets the Person which is also an entity which has a relationship to the Family Entity.
I pass it as the follow:
In the PersonDetailView I now change the name of the person and save the changed to CoreData.
The change is saved without a problem, the problem is that when I go back, using the topleading back button from the NavigationView, the Views are not updated. I have to restart the App to see the changes..
I know that the Problem has to be with passing the Data, but I cant figuring out what I did wrong.
I really appreciate everyone trying to help me!
Thank you very very much!!
this is my first post to this forum and really hope that somebody can help me here.
I would highly appreciate every help!
I am writing my first app with Swift UI (never used UIKit before) which I want to publish later on.
This is also my first app which has CoreData implemented.
For example I use the following entities:
Family, Person
1 Persons can have 1 Family
1 Family can have many Persons
My App is structured as the following:
ContentView:
Contains a TabView with 2 other views in it. A Settings View and a View with a LazyVGrid.
LazyVGrid View:
This View shows a GridItem for every Family. I get the Families with the following Fetchrequest:
Code Block @Environment(\.managedObjectContext) private var viewContext // These are the Families from the FetchRequest @FetchRequest(entity: Family.entity(), sortDescriptors: [NSSortDescriptor(keyPath: \Family.created, ascending: false)] ) var families: FetchedResults<Family>
Every GridItem is linking to a "FamilyDetailView" via NavigationLink. So i pass the family as the following:
Code Block NavigationLink(destination: FamilyDetailView(family: family).environment(\.managedObjectContext, self.viewContext), label: {Text("Family Name")
In the FamilyDetailView i get the Family with a property wrapper:
Code Block @State var family : Family
In this FamilyDetailView is the problem i have.
Here I also have a LazyVGrid, which shows 1 NavigationLink for every Person in the Family in a GridItem . In this GridItem I also show for example the "name" of the Person.
When tapping the NavigationLink i get to the last View, the PersonDetailView. This View gets the Person which is also an entity which has a relationship to the Family Entity.
I pass it as the follow:
Code Block NavigationLink( destination: PersonDetailView(person: person), label: {Text("Person")})
In the PersonDetailView I now change the name of the person and save the changed to CoreData.
The change is saved without a problem, the problem is that when I go back, using the topleading back button from the NavigationView, the Views are not updated. I have to restart the App to see the changes..
I know that the Problem has to be with passing the Data, but I cant figuring out what I did wrong.
I really appreciate everyone trying to help me!
Thank you very very much!!
