Fixed drawShadow bug

Author: shai-almog

CodenameOne/src/com/codename1/ui/Graphics.java

@@ -383,6 +383,9 @@ public void fillRect(int x, int y, int width, int height) {
         impl.fillRect(nativeGraphics, xTranslate + x, yTranslate + y, width, height);
     }
 
+    /**
+     * @deprecated this method should have been internals
+     */
     public void drawShadow(Image img, int x, int y, int offsetX, int offsetY, int blurRadius, int spreadRadius, int color, float opacity) {
         impl.drawShadow(nativeGraphics, img.getImage(), xTranslate + x, yTranslate + y, offsetX, offsetY, blurRadius, spreadRadius, color, opacity);
     }

Ports/Android/src/com/codename1/impl/android/AndroidGraphics.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009 Pader-Sync Ltd. & Co. KG.  All Rights Reserved.
+ * Copyright 2009 Pader-Sync Ltd. & Co. KG.  All Rights Reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -144,18 +144,18 @@ public void drawImage(Object img, int x, int y) {
     }
 
     public void drawShadow(Object image, int x, int y, int offsetX, int offsetY, int blurRadius, int spreadRadius, int color, float opacity) {
-        if (image == null) return;
+        if (image == null || canvas == null) {
+            return;
+        }
         Bitmap bmp = (Bitmap)image;
         float bmpW = bmp.getWidth();
         float bmpH = bmp.getHeight();
-        if (bmpW == 0 || bmpH == 0) return;
-
-
+        if (bmpW == 0 || bmpH == 0) {
+            return;
+        }
 
         Bitmap scaledBmp = Bitmap.createScaledBitmap(bmp, bmp.getWidth() + 2 * spreadRadius, bmp.getHeight() + 2 * spreadRadius, false);
-
         Paint alphaPaint = new Paint();
-
         alphaPaint.setMaskFilter(new BlurMaskFilter(blurRadius, BlurMaskFilter.Blur.NORMAL));
         int[] offsetXY = new int[2];
         Bitmap bmAlpha = scaledBmp.extractAlpha(alphaPaint, offsetXY);
@@ -164,13 +164,11 @@ public void drawShadow(Object image, int x, int y, int offsetX, int offsetY, int
         applyTransform();
         Paint shadowPaint = new Paint();
         int alpha = (int)Math.floor(opacity * 255);
-        shadowPaint.setColor((0xff000000 | color));
-        shadowPaint.setAlpha((int)Math.floor(opacity * 255));
-
+        shadowPaint.setColor(0xff000000 | color);
+        shadowPaint.setAlpha(alpha);
         canvas.drawBitmap(bmAlpha, x + offsetXY[0] - spreadRadius + offsetX, y + offsetXY[1] - spreadRadius + offsetY, shadowPaint);
         bmAlpha.recycle();
 
-
         unapplyTransform();
         canvas.restore();
     }