Join David Okun for an in-depth discussion in this video Capturing a still image, part of Swift: Writing Reusable Frameworks.
- [Instructor] Now that we've set up our UI…to handle the tap of the shutter button,…we need to tell AV Foundation that we need a still image.…In order to do that,…we need to go to out camera.swift object…inside of our reusable framework.…Scroll down to where you see var video output.…You'll notice that to this point,…all we've added onto our inputs and outputs…for AV capture session,…is an AV capture video data output for our output.…However, when we capture a still image,…we need to also have a photo output.…Underneath var video output, type var photo output,…and you'll make this of type AV capture photo output,…and construct it with parentheses.…
Now that we've done this,…you'll notice that our update function is a little stale…and it could benefit from some refactoring.…The input and the output that we've specified…aren't the only ones we're getting rid of.…Let's go ahead and scroll down to…underneath the function for capture still image.…And a function called recycle device IO.…We'll type it here: func recycle device IO,…
Author
David Okun
Released
11/21/2017Along the way, he explains the differences and nuances between writing code for an application and for a reusable framework, as well as some of the fundamentals of AVFoundation, one of the core camera frameworks in iOS. David also shows how to refactor your code, understand Swift access control, develop an interface, and handle memory leaks, so your framework is ready to share with other developers.
- Creating your first build
- Making the camera work
- Refactoring
- Creating a framework delegate
- Adding media
- Capturing images
- Correcting orientation
- Versioning and tagging releases in Git
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome44s
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What you should know1m 59s
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Using the exercise files2m 52s
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1. Let's Make It Work
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Setting your goal2m 11s
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Create your first build3m 32s
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Make the camera work: Part 15m 21s
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Make the camera work: Part 24m 11s
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2. Let's Keep It Clean
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Refactoring your camera8m 7s
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Handling rotation4m 45s
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3. Putting It All Together
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Capturing a still image6m 57s
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Normalizing your image data2m 47s
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Checking for leaks4m 37s
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4. Track It
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Tagging releases in Git2m 36s
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Conclusion
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Next steps1m 47s
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Video: Capturing a still image