Android Question Split an image into several parts

Sub Globals
    'These global variables will be redeclared each time the activity is created.

    Dim myimage As Bitmap
End Sub

Sub Activity_Create(FirstTime As Boolean)
    Activity.LoadLayout("Layout")
    myimage.Initialize(File.DirAssets ,"english_n_819575.png")
    
    slice_image(16 ,200,200)
    For Each v As View In Activity.GetAllViewsRecursive
        If (v Is ImageView) Then
            Dim i As ImageView = v
            i.Bitmap = LoadBitmap(File.DirInternal ,v.Tag&".png")
        End If
    Next
    
    
End Sub



Sub slice_image(count As Int , width As Int , height As Int )
    Dim name As Int=-1
    Dim temp_bitmap As Bitmap
    For iy = 0 To (count-1)/4
      
        For ix = 0 To (count-1)/4
            name=name+1
            temp_bitmap=myimage.Crop(ix*width ,iy*height ,width ,height)
            Dim Out As OutputStream
            Out = File.OpenOutput(File.DirInternal, name&".png", False)
            temp_bitmap.WriteToStream(Out, 100, "PNG")
            Out.Close
          
        Next
      
    Next
  
End Sub