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Andrew Fletcher
•
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
•
Today while in Terminal, I ran a regular script pod update. However, this...
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...
Andrew Fletcher
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How to apply a gradient tint over a background image?
Set the background image
The first step is to set the background image. I wanted the image to cover the entire device, so scale aspect fill will be required.
self.backgroundImage = UIImageView(image: UIImage(named: "bgkMain"))
self.backgroundImage.contentMode = .scaleAspectFill
self.view.insertSubview(self.backgroundImage, at: 0)
Set the tint layer
With the background in place, next construct the tint layer. To make...
Andrew Fletcher
•
For detailed notes regarding how to add custom fonts to your iOS app see...
Andrew Fletcher
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Working on formatting the date in Xcode, and you come across the situation where...
Andrew Fletcher
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Adding a floating decimal point for n number of places is quite easy to achieve....