Category: Learning

Auto-Deleting Temporary Files

Published March 11, 2021 by Greg O'Lone

Did you know that you can make temporary FolderItems that automatically delete when they go out of scope? This technique makes it fairly easy.

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Folder Contents in a Menu, Redux

Published February 24, 2021 by Paul Lefebvre

Since I was asked for a few enhancements, here’s a quick update to my previous Folder Contents in a Menu post from earlier this week. Enhancements include: Display the requested folder in the menu.
Sort the folder contents.
Skip files that cannot be accessed.

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Folder Contents in a Menu

Published February 23, 2021 by Paul Lefebvre

A user on the forum asked how they might show folder contents in a PopupMenu. Since a PopupMenu is not hierarchical, that wasn’t really an option. But an alternative would be to show the contents in a hierarchical menu. Here’s how you can recurse through files and add them to a regular MenuItem.

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QuickTip: Using SF Symbols in your macOS apps

Published February 17, 2021 by Javier Menendez

Since the publication of the post Quick Tip: SystemImage, more than 2,400 symbols at your disposal, some users raised the question about how to do the same on macOS. Continue reading to learn one possible technique.

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Quick Tip: Listing System Fonts on iOS

Published January 14, 2021 by Javier Menendez

Xojo 2020r2 introduced the new Font class to deal with any font that you want to use in your iOS apps. The Constructor method for the class receives the font name (the PostScript one) and the font size.

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Create a “Recent Items” Menu

Published January 5, 2021 by Javier Menendez

It’s helpful and common these days to add a “Recent Items” menu that tracks the last opened files or other recent searches among other things. This blog post will teach you one of the multiple approaches to do this in Xojo.

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Quick Tip: SystemImage, more than 2,400 symbols at your disposal

Published December 17, 2020 by Javier Menendez

With Xojo 2020r2, we’ve given you a really easy way to provide hi-resolution and scalable symbols for use as images in Canvas drawings or as Toolbar…

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Debugging Apple Silicon (M1) apps

Published December 8, 2020 by William Yu

While we make the full transition of building the Xojo IDE for M1, you can continue to leverage debugging M1 apps while using the Intel based Xojo IDE on macOS.

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About Running Windows and Linux on M1 Macs

Published December 4, 2020 by Paul Lefebvre

With the newly released M1 Macs, there have been lots of questions about being able to run other operating systems on it, particularly from developers that are used to running Window or Linux in Virtual Machines using virtualization on their Intel Macs.

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Use Multiple CPU Cores with Worker

Published November 24, 2020 by Paul Lefebvre

A Worker provides a way for you to have code that runs on multiple CPU cores. A Worker achieves this by running its code in a Console app. One or more of these console apps are started based on your Worker settings. Since these run as Console apps, the OS treats them as separate processes and spreads them out amongst available CPU cores.

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