PackageManager.queryBroadcastReceivers() returns all receivers declared in application manifests matching a given Intent. Note however that this will not include receivers registered with Context.registerReceiver(); there is currently no way to get information about those.
On Thu, Dec 23, 2010 at 5:04 PM, Tao <[email protected]> wrote: > Hi, > > A similar question has been asked before (with no answers as far as I > can tell), but I thought I'd try my luck: Does anyone know whether > there is a way to know whether there is anyone (anything) out there > listening for a specific type of Intent being broadcast? > > There are numerous applications out there that listen for specified > intents, and do something when these intents are broadcast. For > example, "Last.fm Scrobbler" applications. I would like to be able to > tell, from a perferences screen, whether a given intent has a > registered Receiver or not. > > This way, if a user chooses a scrobbler application and I detect that > that scrobbler application does not appear to be registered/listening > (or rather, there are no Receivers registered for that type of > Intent), then I display an error/explanation message to the user, > telling them that application is not installed or is disabled. > > The closest I've come to this from looking at the Android dev docs is > "sendOrderedBroadcast". If the intended receivers of the broadcast can > be guaranteed to cooperate by doing something predefined to the > payload, then my broadcast receiver at the end should be able to > detect the successful receipt vs lack of Receiver... This relies on a > specific implementation on the part of the expected receivers, > however, so it's not a very general solution. > > Any ideas? > > Thanks! > Tao > > -- > 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 > -- Dianne Hackborn Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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
