help Replace dar b4a

Replace

Code:

page = page.Replace ("%20", " ")

Background

Code:

Dim BG As Bitmap = LoadBitmapSample(File.DirAssets, "bg.jpg", Activity.Width, Activity.Height)
Activity.SetBackgroundImage(SetTileBackground(What to put here, BG))

Code:

Dim BG As Bitmap = LoadBitmapSample(File.DirAssets, "bg.jpg", Activity.Width, Activity.Height)
SetTileBackground(Activity.SetBackgroundImage(), BG)

Code:

Sub GetWallpaperBackground As Object
    Dim r As Reflector
    r.Target = r.RunStaticMethod("android.app.WallpaperManager", "getInstance", _
        Array As Object(r.GetContext), Array As String("android.content.Context"))
    Dim bg As Object
    bg = r.RunMethod("getDrawable")
    Return bg
End Sub

Code:

 Dim Out As OutputStream
   Out = File.OpenOutput(File.DirDefaultExternal, "bg.png", False)
   If bg Is BitmapDrawable Then
      ToastMessageShow("is drawable!",True)
      Dim bd As BitmapDrawable
       bd = bg

   Dim btm As Bitmap
      btm = bd.Bitmap
      btm.WriteToStream(Out, 100, "PNG")      
      Out.Close
   Else
      ToastMessageShow("is NOT drawable!",True)
      Dim bt As Bitmap
      bt = bg
      'Create a mutable Bitmap with Bitmap.InitializeMutable.
      Dim w As Int 'width
      Dim l As Int 'length
      w = bt.Width
      l = bt.Height            
      Dim btm As Bitmap        
      btm.InitializeMutable(w,l) ' todo get layout from device layout ?? or from bg ?
      'Create a Canvas For this Bitmap.
      Dim can As Canvas
      'Draw the drawable with Canvas.DrawDrawable
      Dim DestRect As Rect
      DestRect.Initialize(0,0, w, l)
      can.DrawDrawable(bg,DestRect)
      'Save the Bitmap To a File (Bitmap.WriteToStream)
      btm.WriteToStream(Out, 100, "PNG")
      
   End If