Android Question Radius for Imageview

    Dim img As B4XBitmap = xui.LoadBitmapResize(File.DirAssets, "1.png", ImageView1.Width, ImageView1.Height, True)
    ImageView1.SetBitmap(CreateRoundRectBitmap(img, 20dip))

Public Sub CreateRoundRectBitmap (Input As B4XBitmap, Radius As Float) As B4XBitmap
    Dim BorderColor As Int = xui.Color_Black
    Dim BorderWidth As Int = 4dip
    Dim c As B4XCanvas
    Dim xview As B4XView = xui.CreatePanel("")
    xview.SetLayoutAnimated(0, 0, 0, Input.Width, Input.Height)
    c.Initialize(xview)
    Dim path As B4XPath
    path.InitializeRoundedRect(c.TargetRect, Radius)
    c.ClipPath(path)
    c.DrawRect(c.TargetRect, BorderColor, True, BorderWidth) 'border
    c.RemoveClip
    Dim r As B4XRect
    r.Initialize(BorderWidth, BorderWidth, c.TargetRect.Width - BorderWidth, c.TargetRect.Height - BorderWidth)
    path.InitializeRoundedRect(r, Radius - 0.7 * BorderWidth)
    c.ClipPath(path)
    c.DrawBitmap(Input, r)
    c.RemoveClip
    c.Invalidate
    Dim res As B4XBitmap = c.CreateBitmap
    c.Release
    Return res
End Sub

Dim iv As B4XImageView = XUIViewsUtils.CreateB4XImageView