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 > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected]<android-developers%[email protected]> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- Cary -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en

