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Category: iOS

Posts related to iOS development.

Quick Tip: Opening, Shown, Closing and Closed

Knowing the firing order of the Opening event in Xojo Desktop and Mobile apps, and the Shown event for Xojo Web apps, is important to using these correctly for a control’s initialization. The same can be said for Closing and Closed events. Read on for a breakdown of this order for Desktop, Web and Mobile apps developed in Xojo.

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PDFDocument: Margins, Merging in a Table and the new Completed method

Xojo 2022r3 included the ability to easily add tables to PDF documents created with Xojo. Now, starting with Xojo 2022r4, this feature has been improved so you can to merge the cells in table’s row! Additionally, you can now set a page’s upper and lower margins and get informed when the table has finished drawing itself. Continue reading to learn how to do all these things!

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2022: Welcome Back!?

Does anyone else feel like 2022 is the first year in many years where we have gotten back together, in-person, for big events, small get-togethers, travel and even the daily office grind? Whether that is the right thing to have done or not, it seems that is what many of us did in 2022. Though we all tried new things to stay connected over the past few years (Zoom-fatigue anyone?), there’s nothing like seeing an old friend after years apart.

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The Versatility of Xojo

Many people around the world are celebrating the holidays by giving gifts, which means more and more people are organizing Secret Santa events. In November of 2018, Jérémie Leroy had the idea of making a Secret Santa iOS app. 3 years, 32 languages and 6.5 millions downloads later, Jérémie incorporated Xojo Web to improve his highly successful Xojo iOS app. Secret Santa is a prime example of what is possible and how you can leverage your Xojo skills to expand to other platforms when you need to.

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PDFDocument Improvements

While PDFTable and PDFDataTableSource ease the way to render tables in your PDF documents on Desktop, Web, Raspberry Pi and Console projects (iOS to come!) and are the big new features for PDFDocument in Xojo 2022r3, that’s not all that improved. There are additional features added to PDFDocument you might find helpful such as more control while using PDFForm and improvements to dealing with TOC indexes. Learn more about how to get advantage of these additions!

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Using Emojis in Xojo

Xojo has very good graphics support. You can drop images into your project and use them with several controls. You can use the various Paint events to draw your own graphics. And there’s another source of graphics you may not have considered: emojis. Emojis can be used anywhere that text can be used because they are simply Unicode characters. That means they can be used in textfields, buttons, labels, popup menus, listboxes and more.

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Rotate that Picture!

Sometimes we need to rotate a Picture from portrait to landscape and vice versa. Since the introduction of the Graphics methods Translate and Rotate this is pretty simple to do! Continue reading and I will show you how to create a Method Extension for the Picture class that will be able to do that. This will work on Desktop and iOS projects by only copying and pasting the code, but you will need to make some changes to the example project for the Web version because of the need to convert Picture to WebPicture and back.

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My Thoughts on the WWDC 2022 Keynote

I’ve learned over the years not to have any specific expectations from Apple’s WWDC keynote. Some years they introduce something big and new that we were pretty much expecting. Other years they blindside us. As the CEO of a company that creates tools for building apps for most of Apple’s ecosystem and given Apple’s history of secrecy, I’m understandably curious just how blindsided I might be each June. Fortunately, this year’s keynote was filled with features that ranged from mildly interesting to really awesome but all incremental improvements across Apple’s software line.

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