The only reason I can think of for getFilesDir() to return null is if
it's not a real live Activity instance (you created it via new
MyActivity() instead of starting it with startActivity(), you call
getFilesDir() sometime after the activity is destroyed, etc.).

On Fri, May 27, 2011 at 8:00 AM, Marco <[email protected]> wrote:
> Dear list,
>
> calling  getFilesDir()  in  my   main  activity  works  as
> expected, but  if I  call it later  from another  class it
> throws a NullPointerException:
>
> D/AndroidRuntime(  716): Shutting down VM
> W/dalvikvm(  716): threadid=1: thread exiting with
> uncaught exception (group=0x40015560)
> E/AndroidRuntime(  716): FATAL EXCEPTION: main
> E/AndroidRuntime(  716): java.lang.RuntimeException:
> Unable to start activity
> ComponentInfo{se.miun.application/se.miun.application.MainActivity}:
> java.lang.NullPointerException
>
> What  could  be the  reason  and  how  to fix  this?  (The
> problematic class extends Activity). Please tell me if I
> should provide more information.
>
> Marco
>
>
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