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Category: Learning

Update: ipify for Xojo

There are plenty of times when your Xojo apps might need to know the public or external IP address is, and there are a lot of web sites or services that you can use with Xojo to find that. I found ipify to be easy to use

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Updated: Make Your Own Classes Iterables

In programming, iterators are the mechanisms that allow us to run through all the items of a collection without needing to know in advance how many of them compose that collection. To do this, we can use the commands For Each… Next in Xojo. What are the main differences when comparing For Each… Next with the conventional For… Next? See how the For Each… Next loop iterates every item associated with the object. It’s a more concise, stylish and Object-Oriented (OOP) way of doing things when compared with the classic For… Next loop.

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Xojo Educational Licenses for Teachers

Educators can download Xojo to a classroom of computers and activate the Xojo Educational license on a build machine. Whether your classroom is Windows, Mac or Linux, the Xojo IDE is cross-platform and free to download. Though you may only be teaching desktop development, your students can stretch their skills and use Xojo’s free IDE to develop web, mobile or Raspberry Pi apps.

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Web Tip: Blocking the Back Button

You are navigating Xojo web 2.0 apps and your use the browser’s back button to return to the previous page of the app. But rather than taking you to the previous page, you get a message that the app lost connection to the sever. This is even more common on a mobile device where we tend to use the back gesture to return to the previous page.

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Xojo Projects in a MonoRepo

Are you working on a solution consisting of several projects? Are you working in a team or as a single developer and want to share code between different projects? If so, then a MonoRepo could be something to think about.

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A Gem in Xojo 2021r2

The ability to specify “White Space” for the trim functions was introduced and largely ignored apart from the release notes. Using Trim (or LTrim or RTrim) will remove spaces from the beginning, end or both of your string. The new function allows you to specify what you want to trim.

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New Additions to PDFDocument

Xojo 2021r2 brings more enhancements, new features and a bunch of bug fixes to the PDFDocument class. Among these, probably the most important is the arrival of PDFDocument for iOS. But you’ll also find new features like adding annotations and links to your PDFs, new PDF viewer options and the ability to jump to a specific page in a PDF.

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