Category: Tutorials, Tips and Demos

Tutorial: Radial Gravity and Predicting Trajectory

Today’s tutorial features two more physics methods. In specific, we’ll discuss “radial gravity” and how to visually predict the launch trajectory of an object. Better yet, both methods are available as downloadable projects so you can explore the full implementation at the code level. Read on to learn more!

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Tutorial: “Android-izing” a Mobile App

For some multi-platform developers, building for Android is planned from the beginning but it’s not fully implemented until after the launch of the iOS version. However, there are several things that should be done while building a cross-platform app to make sure that Android’s unique functionality is handled in advance of submission to the marketplace.

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Performance Optimizations

Performance optimization is a topic that concerns all developers and spans all genres. Today’s tutorial discusses 10 useful performance tips that are not necessarily “familiar” to Corona developers. Read on to learn how these tips and tricks can improve the performance of your app.

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Tutorial: New Widgets, Part 3

Today’s tutorial discusses the remainder of the new widgets introduced recently, available in Daily Builds. These include the “table view,” “scroll view,” “picker wheel,” and “progress bar.” Read on to learn about the features of these new widgets and how to easily implement them into your Corona app.

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Tutorial: New Widgets, Part 2

After much anticipation, we’ve finally released the majority of new Corona widgets! All new widgets share a common trait: each has been written atop a new foundation that is more flexible and stable. Today’s tutorial outlines five of the new widgets — read further to learn how to implement them in your apps.

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Using Email Attachments (iOS)

Would you like to open an email attachment with your own custom extension directly in your iOS app? Today’s guest tutorial walks you through the essential steps, including the necessary additions to “build.settings” and the functions required to load an email attachment into your app’s local directory. Read further to learn how!

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Tutorial: Implementing Pinch-Zoom-Rotate

Many apps have a huge feature set but still function primarily with a single point of input: buttons, touch-drags, individual swipe actions, etc. However, even the most basic interface can benefit from the multitouch capabilities of modern devices; for example, zoom in and out on a background, scale/rotate objects and layers, etc. Today’s tutorial walks you through a full “pinch-zoom-rotate” methodology and includes a working module that you can incorporate into your own app.

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Tutorial: Utilizing time and dates

Working with “time” in any programming language can be confusing. Furthermore, it’s not always obvious what various time and date functions mean and how they behave. This week’s tutorial discusses some of these issues and shows you how to work with things like date calculations, time zones, and date formatting.

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