How to create an image with reflexion in android?

This takes an existing bitmap and adds a reflection to the bottom. 

 public static Bitmap createReflectedImage(Context context, Bitmap originalImage) {
  //The gap we want between the reflection and the original image
  final int reflectionGap = 4;
  
  int width = originalImage.getWidth();
  int height = originalImage.getHeight();
  
 
  //This will not scale but will flip on the Y axis
  Matrix matrix = new Matrix();
  matrix.preScale(1, -1);
  
  //Create a Bitmap with the flip matrix applied to it.
  //We only want the bottom half of the image
  Bitmap reflectionImage = Bitmap.createBitmap(originalImage, 0, height/2, width, height/2, matrix, false);
  
   
  //Create a new bitmap with same width but taller to fit reflection
  Bitmap bitmapWithReflection = Bitmap.createBitmap(width
  , (height + height/2), Config.ARGB_8888);
  
  //Create a new Canvas with the bitmap that's big enough for
  //the image plus gap plus reflection
  Canvas canvas = new Canvas(bitmapWithReflection);
  //Draw in the original image
  canvas.drawBitmap(originalImage, 0, 0, null);
  //Draw in the gap
  Paint defaultPaint = new Paint();
  canvas.drawRect(0, height, width, height + reflectionGap, defaultPaint);
  //Draw in the reflection
  canvas.drawBitmap(reflectionImage,0, height + reflectionGap, null);
  
  //Create a shader that is a linear gradient that covers the reflection
  Paint paint = new Paint();
  LinearGradient shader = new LinearGradient(0, originalImage.getHeight(), 0,
  bitmapWithReflection.getHeight() + reflectionGap, 0x70ffffff, 0x00ffffff,
  TileMode.CLAMP);
  //Set the paint to use this shader (linear gradient)
  paint.setShader(shader);
  //Set the Transfer mode to be porter duff and destination in
  paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
  //Draw a rectangle using the paint with our linear gradient
  canvas.drawRect(0, height, width,
  bitmapWithReflection.getHeight() + reflectionGap, paint);
  
  return bitmapWithReflection;
 }