/**
 * @param bitmap
 *            The source bitmap.
 * @param opacity
 *            a value between 0 (completely transparent) and 255 (completely
 *            opaque).
 * @return The opacity-adjusted bitmap. If the source bitmap is mutable it
 *         will be adjusted and returned, otherwise a new bitmap is created.
 *         Source : http://stackoverflow.com/questions/7392062/android-
 *         semitransparent-bitmap-background-is-black/14858913#14858913
 */
private Bitmap adjustOpacity(Bitmap bitmap, int opacity) {
    Bitmap mutableBitmap = bitmap.isMutable() ? bitmap : bitmap.copy(Bitmap.Config.ARGB_8888, true);
    Canvas canvas = new Canvas(mutableBitmap);
    int colour = (opacity & 0xFF) << 24;
    canvas.drawColor(colour, PorterDuff.Mode.DST_IN);
    return mutableBitmap;
}

UtilizandoadjustOpacity, Yo hagoImageViewesBitmap ser semitransparente

Bitmap newBitmap = adjustOpacity(orignalBitmap, 10);
view.setImageBitmap(newBitmap);
view.setBackgroundColor(Color.WHITE);

Sin embargo,Imageview mostrar más oscuro antes que no blanco. ¿Cómo hago una vista de imagen semi-transparente (fondo blanco) conBitmap?