by Marc Maset
As I continue working on the new product management app, I was trying to get a quick CoreData count. To be precise, I needed to get the count for how many of its relationships met a given criteria. There’s quite a few approaches but none as clean as “the filter”: Using it for boolean arguments: …
Continue reading “Counting CoreData entries based on relationship entities”
For the upcoming app I’m working on I need a way to easily detect dates the user may have typed at the end of a line. It was time to re-visit old faithful regex. After lots of readings and tests I ended up settling on this beauty: “.*[0-9]{2}/[0-9]{2}” Here’s what it does: The …
Continue reading “Identifying combinations of dates in text using regex”
Its amazing how fast you can prototype in SwiftUI, it seems like magic. At the same time, when you start to get into the details, it can be infuriating… Let me explain… After completing the prototype last week and deciding on the key features for the app I started implementing them. One of the very …
Continue reading “Struggling with a basic macOS SideBar, RowList & DetailView app in SwiftUI”
One of the things I really enjoy about the Christmas break, is how much it contributes to looking at things with perspective. It may be the copious amounts of food, the change in schedule, the time to think… Whatever the reason, it really helps assessing how things have gone and where to go next. On …
Although users interact with NewsWave on their iOS and -soon- Mac, some features are provided by a server. So, how can I let users know when the server triggers certain tasks? If they are triggered at regular intervals you can simply calculate on the device how long until it will be triggered again. This reduces calls …
Continue reading “Time until next day starts in UTC (Swift)”
Nothing like vacation to accelerate personal projects, very happy with how NewsWave for Mac is shaping up. No promises on when, but I’m planning to post more about its progress very soon. One of the items I worked on today is how icons and images will appear in the app, the intent is to show …
In NewsWave, when you are in the “Add Feed” view you have the option to search the RSS repository, add a RSS URL or choose from ‘recommended feeds’. Recommended feeds may change over time so, instead of using static images, NewsWave looks at the feeds from each recommended category and creates a collage to represent …
Continue reading “Creating a collage by combining an array of images (macOS & iOS)”
If you would like your table to be refreshed “ala Twitter”, with new data being added on top, here’s a quick an easy way to do it for iOS: func updateTableViewAfterAdditionInNewArray(){ //Get new feeds and check if counts are different let countOfAddedItems = oldArray.count – newArray.count …
Continue reading “Inserting cells at the top of a UITableView with no scrolling”
I wanted a simple function to resize an image to a desired height, while keeping proportions. Here’s what I came up with (based on Marco implementation): extension NSImage { func resizedImageTo(sourceImage: NSImage, newSize: NSSize) -> NSImage?{ if sourceImage.isValid == false { …
Just a quick update to show how to get Date Day, Month or Year in Swift 3 //Here I’m creating the calendar instance that we will operate with: let calendar = NSCalendar.init(calendarIdentifier: NSCalendar.Identifier.gregorian) //Now asking the calendar what month are we in today’s date: let currentMonthInt = (calendar?.component(NSCalendar.Unit.month, from: Date()))! //Now …