ImageVIew background set as black in some devices in xamarin android - xamarin.forms

Question

I tried to rotate the image by using matrix values and set the rotated bitmap to the image view. In this case, the image view background is set as black. Please provide any suggestions on this.
Device details: Motorola Moto G(4) (Android 7.0 - Api 24)
Sample:
My code:
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
Xamarin.Essentials.Platform.Init(this, savedInstanceState);
// Set our view from the "main" layout resource
LinearLayout linearLayout = new LinearLayout(this);
imageView = new ImageView(this);
imageView.LayoutParameters = new Android.Views.ViewGroup.LayoutParams(LinearLayout.LayoutParams.MatchParent, 1200);
bitmap = BitmapFactory.DecodeResource(Resources, Resource.Drawable.Nature);
linearLayout.AddView(imageView);
linearLayout.Orientation = Orientation.Vertical;
Button button = new Button(this);
button.Text = "Click me";
button.Click += Button_Click;
button.LayoutParameters = new Android.Views.ViewGroup.LayoutParams(150, 150);
linearLayout.AddView(button);
imageView.SetImageBitmap(bitmap);
SetContentView(linearLayout);
}
private void Button_Click(object sender, System.EventArgs e)
{
int angle = 45;
Matrix = new Matrix();
int cx = bitmap.Width / 2;
int cy = bitmap.Height / 2;
this.Matrix.PreTranslate(-cx, -cy);
this.Matrix.PostRotate(angle);
this.Matrix.PostTranslate(this.imageView.Width / 2, this.imageView.Height / 2);
using (var tiltBitmap = Bitmap.CreateBitmap(bitmap, 0, 0, bitmap.Width, bitmap.Height, Matrix, false))
{
imageView.SetImageBitmap(tiltBitmap);
}
this.Matrix.Dispose();
}