android.graphics.Bitmap.extractAlpha C# (CSharp) Method

        public global::android.graphics.Bitmap extractAlpha()
        {
            return global::MonoJavaBridge.JavaBridge.CallSealedClassObjectMethod<android.graphics.Bitmap>(this, global::android.graphics.Bitmap.staticClass, "extractAlpha", "()Landroid/graphics/Bitmap;", ref global::android.graphics.Bitmap._m35) as android.graphics.Bitmap;
        }

		public AlphaBitmap (Context context)
			: base (context)
		{
			mBitmap = GetResourceBitmap (R.drawable.app_sample_code);
			mBitmap2 = mBitmap.extractAlpha ();
			mBitmap3 = Bitmap.createBitmap (200, 200, Bitmap.Config.ALPHA_8);
			drawIntoBitmap (mBitmap3);

			mShader = new LinearGradient (0, 0, 100, 70, new int[] {
                                         Color.RED, Color.GREEN, Color.BLUE },
                                         null, Shader.TileMode.MIRROR);
		}