Android Question Bitmap resize

'    resimv.Bitmap = LoadBitmapResize(dir, filename, resimv.Width, resimv.Height, True)
'    resimv.Gravity = Gravity.CENTER

           Buffer=c.GetBlob("bitid")
            input.InitializeFromBytesArray(Buffer,0,Buffer.Length)
            Dim bitmap1 As Bitmap
            bitmap1.Initialize2(input)
            input.Close
            'Which ever side you want to keep, needs to be the smaller of the two values. For example, if you want to resize to a width of 640 and have
            'the height calculated, then the height must be larger then the width.
            'Here we have a fixed width of 640 and have the system calculate the proper height
            bitmap1 = bitmap1.Resize(640, 700, True)
            'The line below would be used if you want the height to be 400 and have the system calculate the width
            'bitmap1 = bitmap1.Resize(600, 400, True)
            imageview1.Bitmap=bitmap1
            imageview1.Gravity = Gravity.CENTER

          Buffer=c.GetBlob("bitid")
            input.InitializeFromBytesArray(Buffer,0,Buffer.Length)
            Dim bitmap1 As Bitmap
            bitmap1.Initialize2(input)
            input.Close
            Dim widthRatio As Float = bitmap1.Width / imageview1.Width
            Dim heightRatio As Float = bitmap1.Height / imageview1.Height
            If widthRatio > heightRatio Then
                   bitmap1 = bitmap1.Resize(imageview1.Width, imageview1.Width * 2, True)
            Else
                   bitmap1 = bitmap1.Resize(imageview1.Height * 2, imageview1.Height, True)
            End If
            imageview1.Bitmap=bitmap1
            imageview1.Gravity = Gravity.CENTER