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Codebales holds an ever growing number of solutions to problems that we have experienced in our day to day code writing
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Andrew Fletcher
•
Core Data - customising our data model
When you are using Core Data, and let's say that you have a requirement to have an attribute where the options available should be a defined list. Such as "Not Started", "Pending", "In Development" and "Completed". How do you create this as an option in Core Data?
Thinking out loud, the practical solution would be to use an enum. But how do you use a enum in this instance? As you might have noticed, unfortunately, it...
Andrew Fletcher
•
In SwiftUI, has made creating a list of item very easy. If...
Andrew Fletcher
•
I attempted the run command and the response I had was succeeded, but then...
Andrew Fletcher
•
Working with buttons
To begin, what is a button in SwiftUI?
struct MainView:...
Andrew Fletcher
•
When those simple annoyances are too frustrating! Yes we have all been...
Andrew Fletcher
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The purple warning notification of annoyance recently came my way! I received the following warning:
Publishing changes from background threads is not allowed; make sure to publish values from the main thread (via operators like receive(on:)) on model updates.
What was happening?
The functionality of the code uses URLSession to get a user's name via API and the display is simple piece that initially message of Hello {user}.
The view code consists of:
MainView : View
Main...
Andrew Fletcher
•
I'm currently working on a project that requires login, register, forget...
Andrew Fletcher
•
iOS localization on the fly
If you have added languages to your app......
Andrew Fletcher
•
After creating a new view with a @Binding string as follows
struct EditRival:...
Andrew Fletcher
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Building a contact list using SwiftUI has many challenges.
One challenge is...
Andrew Fletcher
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What to do when you want to filter a Realm object, using NSPredicate in SwiftUI or in Swift.
Applying the filter to a simple condition in one line
let exists = realm.objects(ExampleObj.self).filter(NSPredicate(format: "uid = %ld", uid))Creating a variable predicate that will be injected as a condition
let predicate = NSPredicate(format: "uid = %ld AND nid = %ld",uid,nid)
let exists = realm.objects(ExampleObj.self).filter(predicate)Finally, managing the predicate as an array by...
Andrew Fletcher
•
I'm going to take you on a journey about adding a gradient tint to a...
Andrew Fletcher
•
Creating a new SwiftUI project is a quick process. There are already...