Android App Development: Difference between revisions
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Notes on Android App development | Notes on Android App development | ||
See https://developer.android.com/get-started | |||
==Architecture== | |||
Android apps are made of Activities https://developer.android.com/reference/android/app/Activity | |||
For native Android apps, there are two current approaches to building out the UI: | |||
* Traditional Android apps are made using views were the layout is stored in an XML file and each component is a view with it's own class. | |||
* Compose apps are made using Jetpack Compose. Compose components are functions similar to React functional components. | |||
==Views== | |||
==Compose== | |||
==AGSL Shaders== | |||
See https://developer.android.com/develop/ui/views/graphics/agsl | |||
==Camera 2 API== | ==Camera 2 API== | ||
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println("Found camera id " + id) | println("Found camera id " + id) | ||
val charac = manager.getCameraCharacteristics(id) | val charac = manager.getCameraCharacteristics(id) | ||
val capabilities = charac.get(CameraCharacteristics.REQUEST_AVAILABLE_CAPABILITIES) | val capabilities = charac.get(CameraCharacteristics.REQUEST_AVAILABLE_CAPABILITIES) | ||
for (capability in capabilities) { | for (capability in capabilities) { | ||
if (capability == CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT) { | if (capability == CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT) { | ||
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} | } | ||
} | } | ||
} catch ( e : Exception) { | } catch (e : Exception) { | ||
println("An exception occurred") | println("An exception occurred") | ||
} | } | ||