I use Toast.makeText(getApplicationContext(), "test",
Toast.LENGTH_SHORT).show(); don't display in the Activity.why?

2010/8/11 Sarwar Erfan <[email protected]>

> Do you wan to display a Toast from a Service? You do not need any
> Activy to do so.
> A toast can be created and displayed from an Activity or Service. If
> you create a toast notification from a Service, it appears in front of
> the Activity currently in focus.
>
> A Service is indirectly derived from Context. You have
> getApplicationContext() method in a service and you can use the
> returned Context in your Toast.
>
> Have a look at this page:
> http://developer.android.com/guide/topics/ui/notifiers/toasts.html
>
>
> Regards
> Sarwar Erfan
>
>
> On Aug 11, 3:50 pm, CaryWang <[email protected]> wrote:
> > I run service in the background I want to use Toast.makeText display
> message
> > to run Activity.but I don't know Activity context I know Activity
> > packageName and className.What should I do?
> >
> > --
> > Cary
>
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-- 
Cary

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