Cleanup

Author: Tim Nolte

Samples/Sample.Forms/Sample.Forms.Android/Properties/AndroidManifest.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="codes.redth.zxing.forms" android:installLocation="auto">
-	<uses-sdk android:minSdkVersion="21" android:targetSdkVersion="28" />
+	<uses-sdk android:minSdkVersion="21" android:targetSdkVersion="29" />
 	<application android:label="ZXing Forms"></application>
 	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 	<uses-permission android:name="android.permission.CAMERA" />

Samples/Sample.Forms/Sample.Forms.Android/Sample.Forms.Android.csproj

@@ -16,7 +16,7 @@
     <MonoAndroidResourcePrefix>Resources</MonoAndroidResourcePrefix>
     <MonoAndroidAssetsPrefix>Assets</MonoAndroidAssetsPrefix>
     <AndroidUseLatestPlatformSdk>false</AndroidUseLatestPlatformSdk>
-    <TargetFrameworkVersion>v9.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v10.0</TargetFrameworkVersion>
     <AndroidEnableSGenConcurrent>true</AndroidEnableSGenConcurrent>
     <AndroidUseAapt2>true</AndroidUseAapt2>
     <AndroidHttpClientHandlerType>Xamarin.Android.Net.AndroidClientHandler</AndroidHttpClientHandlerType>
@@ -32,11 +32,6 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <AndroidLinkMode>None</AndroidLinkMode>
-    <AotAssemblies>false</AotAssemblies>
-    <EnableLLVM>false</EnableLLVM>
-    <AndroidEnableProfiledAot>false</AndroidEnableProfiledAot>
-    <BundleAssemblies>false</BundleAssemblies>
-    <AndroidEnableMultiDex>true</AndroidEnableMultiDex>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>

ZXing.Net.Mobile/Android/CameraAccess/CameraAnalyzer.android.cs

@@ -90,7 +90,7 @@ bool CanAnalyzeFrame
             }
         }
 
-        void HandleOnPreviewFrameReady(object sender, byte[] fastArray)
+        void HandleOnPreviewFrameReady(object sender, byte[] data)
         {
             if (!CanAnalyzeFrame)
                 return;
@@ -102,7 +102,7 @@ void HandleOnPreviewFrameReady(object sender, byte[] fastArray)
             {
                 try
                 {
-                    DecodeFrame(fastArray);
+                    DecodeFrame(data);
                 }
                 catch (Exception ex)
                 {
@@ -115,7 +115,7 @@ void HandleOnPreviewFrameReady(object sender, byte[] fastArray)
             }, TaskContinuationOptions.OnlyOnFaulted);
         }
 
-        void DecodeFrame(byte[] fastArray)
+        void DecodeFrame(byte[] data)
         {
             var previewSize = cameraController.IdealPhotoSize;
             var width = previewSize.Width;
@@ -127,9 +127,9 @@ void DecodeFrame(byte[] fastArray)
 
             barcodeReader.AutoRotate = true;
 
-            var source2 = new PlanarYUVLuminanceSource(fastArray, width, height, 0, 0, width, height, false);
+            var source = new PlanarYUVLuminanceSource(data, width, height, 0, 0, width, height, false);
 
-            result = barcodeReader.Decode(source2);
+            result = barcodeReader.Decode(source);
             PerformanceCounter.Stop(start,
                 "Decode Time: {0} ms (width: " + width + ", height: " + height + ")");
 

ZXing.Net.Mobile/Android/CameraAccess/CameraController.android.cs

@@ -225,6 +225,7 @@ void SetUpCameraOutputs()
                 }
 
                 // 1050 and 1400 are a random guess which work pretty good
+                // inspired from https://github.com/vtserej/Camera2Forms/blob/master/Camera2Forms/Camera2Forms.Android/Camera2/CameraDroid.cs#L162
                 var idealSize = GetOptimalSize(supportedSizes, 1050, 1400);
                 imageReader = ImageReader.NewInstance(idealSize.Width, idealSize.Height, ImageFormatType.Yuv420888, 5);
 
@@ -274,7 +275,7 @@ public void OpenCamera()
             }
         }
 
-        private Size GetOptimalPreviewSize(SurfaceView surface)
+        Size GetOptimalPreviewSize(SurfaceView surface)
         {
             var characteristics = cameraManager.GetCameraCharacteristics(CameraId);
             var map = (StreamConfigurationMap)characteristics.Get(CameraCharacteristics.ScalerStreamConfigurationMap);

ZXing.Net.Mobile/Android/CameraAccess/CameraEventsListener.android.cs

@@ -25,10 +25,6 @@ public void OnImageAvailable(ImageReader reader)
                 var yuvBytes = ImageToByteArray(image);
                 OnPreviewFrameReady?.Invoke(this, yuvBytes);
             }
-            catch (Exception ex)
-            {
-                Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Could not start preview session");
-            }
             finally
             {
                 image?.Close();