GoogleMaps Android Library: ScreenShot issue

[daniel69]

The agraham code for programmatic screenshot (it uses the Reflector library 2.04, see the code below) provides a blank screenshot (present only the zoom +- buttons) when using this library (Google Maps Android Library 1.0.1).... any workaround?


Sub ScreeShot(fName As String)As String

Dim Obj1, Obj2 As Reflector
Dim bmp As Bitmap
Dim c As Canvas
Dim Out As OutputStream
Dim c1 As Int
Dim ret As Int

Obj1.Target = Obj1.GetActivityBA
Obj1.Target = Obj1.GetField("vg")
bmp.InitializeMutable(Activity.Width, Activity.Height)
c.Initialize2(bmp)
Dim args(1) As Object
Dim types(1) As String
Obj2.Target = c
Obj2.Target = Obj2.GetField("canvas")
args(0) = Obj2.Target
types(0) = "android.graphics.Canvas"
Obj1.RunMethod4("draw", args, types)
Out = File.OpenOutput(File.DirDefaultExternal & "/" & globv.cCHARTS, Name, False)
bmp.WriteToStream(Out, 100, "JPEG")
Out.Close

End Sub

 

[Erel]

See my answer here: http://www.b4x.com/android/forum/threads/google-maps-android-v2-tutorial.24415/page-10#post-180707

 

[daniel69]

See my answer here: http://www.b4x.com/android/forum/threads/google-maps-android-v2-tutorial.24415/page-10#post-180707

Hi Erel! I'm not sure I understood ... I use this code succesfully on any B4A activity page, but when I use it with the Google Maps Android Library 1.0.1 I get a blank page (the screenshot picture contains only the zoom buttons but not the displayed map).
If I make a screenshot manually using Android OS function or other apps is OK.

 

[Erel]

It is not possible to take a screenshot of GoogleMaps (or VideoView) programmatically due to the way they manage their drawings.

 

[daniel69]

Thanks Erel! Any workaround or suggestion?

 

[Erel]

Try to show the map in WebView. You will then be able to capture the WebView page with WebView.CaptureBitmap.

 

[daniel69]

Thanks Erel! I also have a WebView in the app (where the screenshot code is working), but I've noticed that the Google Maps Android Library is much faster (in loading maps/markers and zooming) ....

 

[Sapta]

hi @Erel and @daniel69 you can user this post for capture/screenshot the google maps

 

[daniel69]

Thanks @Sapta .... I'll try it!