Android图片放大修改代码(2)

int width = BitmapOrg.getWidth();
                int height = BitmapOrg.getHeight();
                int newWidth = w;
                int newHeight = h;
               
                Log.v(tag,String.valueOf(width));
                Log.v(tag,String.valueOf(height));
               
                Log.v(tag,String.valueOf(newWidth));
                Log.v(tag,String.valueOf(newHeight));

// calculate the scale
                float scaleWidth = ((float) newWidth) / width;
                float scaleHeight = ((float) newHeight) / height;

// create a matrix for the manipulation
                Matrix matrix = new Matrix();
                // resize the Bitmap
                matrix.postScale(scaleWidth, scaleHeight);
                // if you want to rotate the Bitmap
                // matrix.postRotate(45);

// recreate the new Bitmap
                Bitmap resizedBitmap = Bitmap.createBitmap(BitmapOrg, 0, 0, width,
                                height, matrix, true);

// make a Drawable from Bitmap to allow to set the Bitmap
                // to the ImageView, ImageButton or what ever
                return new BitmapDrawable(resizedBitmap);

}
       
}