Missing method HardwareBuffer.Create(...)

[Steph55]

Android application type

.NET Android (net7.0-android, net8.0-android, etc.)

Affected platform version

VS 2022

Description

I have been trying for a while to figure out how to create an Android HardwareBuffer with Xamarin. With Android, it is easy, we simply need to call HardwareBuffer.Create(), but I cannot find the equivalent in Xamarin. How should I proceed or is this function missing?

Steps to Reproduce

Create a Net 8 Xamarin project using Android.Hardware. Then try to figure out how to call HardwareBuffer.Create()

Did you find any workaround?

No

Relevant log output

No response

[jonpryor]

@jpobst: looking at the build log for Mono.Android.csproj, I see:

bj/Debug/net9.0/android-34/mcw/api-34.xml(32327,10): warning BG8800: Unknown parameter type 'Android.Hardware.HardwareBufferUsage' for member 'Android.Hardware.HardwareBuffer.Create (int, int, Android.Hardware.HardwareBufferFormat, int, Android.Hardware.HardwareBufferUsage)'

Looks like a "bad enumification" prevented HardwareBuffer.create() from being bound. :-/

[jpobst]

This will be fixed by #8707, however we cannot add new API to the shipped "contract" net8.0-android. Thus, this will not be available until .NET 9.

In the meantime, you should be able to copy the binding for HardwareBuffer.Create (...) into your project to be able to use it:

static readonly JniPeerMembers _members = new XAPeerMembers ("android/hardware/HardwareBuffer", typeof (HardwareBuffer));

public static unsafe Android.Hardware.HardwareBuffer Create (int width, int height, Android.Hardware.HardwareBufferFormat format, int layers, long usage)
{
	const string __id = "create.(IIIIJ)Landroid/hardware/HardwareBuffer;";
	try {
		JniArgumentValue* __args = stackalloc JniArgumentValue [5];
		__args [0] = new JniArgumentValue (width);
		__args [1] = new JniArgumentValue (height);
		__args [2] = new JniArgumentValue ((int) format);
		__args [3] = new JniArgumentValue (layers);
		__args [4] = new JniArgumentValue (usage);
		var __rm = _members.StaticMethods.InvokeObjectMethod (__id, __args);
		return global::Java.Lang.Object.GetObject<Android.Hardware.HardwareBuffer> (__rm.Handle, JniHandleOwnership.TransferLocalRef)!;
	} finally {
	}
}