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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
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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
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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...
Andrew Fletcher
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For detailed notes regarding how to add custom fonts to your iOS app see Apple's custom font notes.
When using the font programmatically, remember that the font file name most of the time will not be the font name. For example, I wanted to use SF-Pro-Text-Bold and its font name is SFProText-Bold. If you want to check the font name, add the following script
for family in UIFont.familyNames.sorted() {
let names = UIFont.fontNames(forFamilyName: family)
print("Family:...
Andrew Fletcher
•
Overview
To update ejabberd you need to remove it, then re-install with the...
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....
Andrew Fletcher
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The starting point is to read through and follow the notes outlined on the...
Andrew Fletcher
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To add Erlang repository that also includes the public key for verifying signed package, use the following shell commands:
wget https://packages.erlang-solutions.com/erlang-solutions-1.0-1.noarch.rpm
rpm -Uvh erlang-solutions-1.0-1.noarch.rpmInstall Erland
yum install erlangCheck that Erland has been installed enter the command (case sensitive)
erlIf the Erland package has been successfully installed terminal will be output something like
Erlang/OTP 21 [erts-10.3.2] [source] [64-bit]...
Andrew Fletcher
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Adding a pem file to secure ejabbered on the server for chat connection.
Getting...
Andrew Fletcher
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To access the ejabberd log files, I found them located at the following...
Andrew Fletcher
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During the process of building the app, there are warnings about the code....
Andrew Fletcher
•
https://github.com/kylebrowning/waterwheel.swift
After a short amount searching...