.NET MAUI - Android Project

"<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('(TargetFramework)')) == 'android'">24.0</SupportedOSPlatformVersion>"

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.anyline.examples" android:versionCode="1" android:versionName="1.0" android:installLocation="preferExternal">
	<!--add android:hardwareAccelerated="true" for Camera2 API support-->
	<application android:allowBackup="true" android:icon="@mipmap/appicon" android:roundIcon="@mipmap/appicon_round" android:supportsRtl="true" android:hardwareAccelerated="true"></application>
	<uses-permission android:name="android.permission.CAMERA" />
	<uses-permission android:name="android.permission.VIBRATE" />
	<uses-feature android:name="android.hardware.camera" android:required="false" />
	<uses-feature android:name="android.hardware.camera.flash" />
	<uses-feature android:name="android.hardware.camera.autofocus" android:required="false" />
</manifest>

namespace Anyline
{
	public partial class AnylineSDKService
	{
		public partial bool SetupWithLicenseKey(string licenseKey, out string licenseErrorMessage)
		{
			try
			{
				IO.Anyline2.AnylineSdk.Init(licenseKey, context: Examples.MAUI.MainActivity.Instance);
				licenseErrorMessage = null;
				return true;
			}
			catch (Exception ex)
			{
				licenseErrorMessage = ex.Message;
				return false;
			}
		}
	}
}

public class MainActivity : MauiAppCompatActivity
{
	public static Activity Instance;

	protected override void OnCreate(Bundle savedInstanceState)
	{
		base.OnCreate(savedInstanceState);
		Instance = this;

		...
	}
}

using Android.App;
using Android.Content;
using Android.Content.Res;
using Android.Graphics;
using Android.Runtime;
using Android.Util;
using Android.Widget;
using Anyline.Examples.MAUI.Views;
using IO.Anyline2.Camera;
using IO.Anyline2;
using IO.Anyline2.View;
using Java.Util;
using Microsoft.Maui.Controls.Handlers.Compatibility;
using Microsoft.Maui.Controls.Platform;

namespace Anyline.Examples.MAUI.Platforms.Android.CustomRenderers
{
	/// <summary>
	/// This class is responsible for rendering the Anyline ScanView natively.
	/// </summary>
	internal class AnylineScanningViewRenderer : ViewRenderer, IEvent
	{
        private bool _initialized;
        private IO.Anyline2.View.ScanView _scanView;
        private Context _context;

        public AnylineScanningViewRenderer(Context context) : base(context)
        {
            _context = context;
        }

		protected override void OnAttachedToWindow()
		{
			base.OnAttachedToWindow();
			InitializeAnyline();
		}

		private void InitializeAnyline()
		{
			if (initialized)
				return;

			try
			{
                _scanView = new IO.Anyline2.View.ScanView(_context);

				// Obtain the JSON config file path from the "AnylineScanningView", defined in the MAUI level.
				string jsonConfigFilePath = (Element as AnylineScanningView).JSONConfigPath.Replace(".json", "") + ".json";

                // This is the main intialization method that will create our use case depending on the JSON configuration.
                _scanView.Init(jsonConfigFilePath);

                _scanView.ScanViewPlugin.ResultReceived = this;
                _scanView.ScanViewPlugin.ResultsReceived = this;

                // Handle camera open events
                _scanView.CameraView.CameraOpened += _scanView_CameraOpened;

                // Handle camera error events
                _scanView.CameraView.CameraError += _scanView_CameraError;

				initialized = true;
				AddView(_scanView);
            }
            catch (Exception e)
            {
                // show error
                Toast.MakeText(_context, e.ToString(), ToastLength.Long).Show();
                Log.Debug("AnylineScanningViewRenderer - Android", e.ToString());
            }
		}

        private void _scanView_CameraError(object sender, CameraErrorEventArgs e)
        {
            Log.Debug("AnylineScanningViewRenderer - Android", e.ToString());
        }

		private void _scanView_CameraOpened(object sender, CameraOpenedEventArgs e)
		{
			if (_scanView != null)
				_scanView.Start();
		}

        /// <summary>
        /// This method is called when a scan result is found.
        /// Since the native Java type is generic, we translated the type of the parameter to ScanResult due to .NET Android generic binding limitations.
        /// </summary>
        /// <param name="data">The scan result</param>
        public void EventReceived(Java.Lang.Object data)
        {
			DisposeAnyline();

            var anylineScanResult = data as IO.Anyline2.ScanResult;

			var bitmap = anylineScanResult.CutoutImage.Bitmap;
			MemoryStream stream = new MemoryStream();
			bitmap.Compress(Bitmap.CompressFormat.Jpeg, 100, stream);
			byte[] bitmapData = stream.ToArray();

			var mrzString = (anylineScanResult.PluginResult).MrzResult.MrzString;

			(Element as ScanExamplePage).OnResult?.Invoke(mrzString, bitmapData);
		}

        /// <summary>
        /// On layout change, propagate changes to ScanView.
        /// </summary>
        /// <param name="changed"></param>
        /// <param name="left"></param>
        /// <param name="top"></param>
        /// <param name="right"></param>
        /// <param name="bottom"></param>
        protected override void OnLayout(bool changed, int left, int top, int right, int bottom)
        {
            base.OnLayout(changed, left, top, right, bottom);
            if (_scanView != null)
                _scanView.Layout(left, top, right, bottom);
        }

		/// <summary>
		/// On device rotated, dispose and re-initialize the ScanView.
		/// </summary>
		/// <param name="newConfig"></param>
		protected override void OnConfigurationChanged(Configuration newConfig)
		{
			base.OnConfigurationChanged(newConfig);
			DisposeAnyline();
			InitializeAnyline();
		}

		protected override void OnDetachedFromWindow()
		{
			DisposeAnyline();
			base.OnDetachedFromWindow();
		}

        private void DisposeAnyline()
        {
            if (_scanView != null)
            {
                _scanView.Stop();
                _scanView.CameraView.CameraOpened -= _scanView_CameraOpened;
                _scanView.CameraView.CameraError -= _scanView_CameraError;
                _scanView.CameraView.ReleaseCameraInBackground();
                _scanView.Dispose();
                _scanView = null;
            }
            _initialized = false;
            RemoveAllViews();
        }
	}
}