Buy any Easy Native Extensions 2nd Edition package and get our $99 iOS + Android ANE Template completely free before the end of June 2015.
- step-by-step guide to making your iOS extension in under an hour
- library for data conversion between ActionScript and native code
- tutorials
- infographics
- code included
At the end of this tutorial you will have
- A native extension for AIR that connects with the native camera and captures frames from it.
- A test app that uses the native extension and can help you test and debug its code.
Total time
I’ve broken down the tutorial into parts, each of which should take between 5 and 20 minutes to implement.
I expect the full tutorial to take you between an hour and a half and two hours in total. You’ve got to love software project estimates. If you’ve completed the whole tutorial, leave a comment and let me know whether my estimate was way off base.
How is this tutorial structured?
Parts 1-3 set up the infrastructure for your ANE and test app:
- Part 1: Create a test app – 15-20 minutes
- Part 2: Set up the Xcode project – 8-10 minutes
- Part 3: Set up the AIR Library – 8-10 minutes
In parts 4-8 you get your hands dirty with native code and learn about AVFoundation, some Objective-C and passing pixel data between Objective-C and ActionScript:
- Part 4: Connect to the camera in Objective-C – 15-20 minutes
- Part 5: Start the camera from ActionScript – 5-6 minutes
- Part 6: Grab frames from iOS camera – 15-20 minutes
- Part 6A: Fake triple buffering – 5-7 minutes, optional
- Part 7: Pass video frames to ActionScript – 15-20 minutes
- Part 8: Stop the camera – 6-7 minutes
Part 9 is the moment of truth, where you see the results of your labor:
- Part 9: Test it [coming soon]
And in part 10 we discuss how you can use the code you have produced as a base for other ANEs and projects:
- Pat 10: The possibilities are endless… [coming soon]
The Flex SDK offers a way of quickly putting together the UI of your app. In this tutorial I want us to focus on the tricky bits: native code for controlling the camera, rather than building UI from Sprites. You can replicate the idea in Flash, if your app must be ActionScript-only.
Check out the DiaDraw Camera Driver ANE.
AKD
This tutorial looks great. I will start following it tomorrow.