On Thu, Apr 2, 2009 at 6:19 AM, Henning Schaefer <henning.schae...@gmail.com
> wrote:
>
> Sure... you need to implement two classes. One, derived from
> BroadcastReceiver, which actually captures the broadcast. And, of
> course, the service that keeps the receiver alive all the time. The
> service is the easy part. You only need to override two methods:
>
> @Override
> public void onCreate() {
> /* register receiver */
> apr = new APReceiver(); /* replace this by your receiver class
> */
> IntentFilter inf = new IntentFilter();
> inf.addAction("android.intent.action.HEADSET_PLUG");
> registerReceiver(apr, inf);
> }
>
> @Override
> public void onDestroy() {
> unregisterReceiver(apr);
> }
>
> Of course, apr (type of your receiver class) must be a private field
> of your service class.
>
> Then, you derive your receiver class from BroadcastReceiver and fill
> in the onReceive method:
>
> public void onReceive(Context context, Intent intent) {
> if (intent.getExtras().getInt("state") == 0) {
> /* HEADSET IS OR HAS BEEN DISCONNECTED */
> }else{
> /* HEADSET IS OR HAS BEEN CONNECTED */
> }
> }
>
> However, you need to be aware that HEADSET_PLUG is a "sticky" event,
> every BroadcastReceiver subscribed to that event will receive it upon
> construction; I don't know if there is a possibility to determine if
> the event has captured at the exact time or been "sticked" for a
> while.
>
>
Hi,
Thanks for detail regarding HEADSET detection but before this what need to
do
so detection come to MMI from driver ? is that required to post specific
event from driver
once driver detect headset plug-in or plug-out ?
Can you please give more details on this starting from driver , how to
enable headset detection in Android UI ? ( My headset driver is working and
can detect plug-in and plug-out ).
> I hope, this short excerpt helps ;)
>
> On 26 Mrz., 18:37, Gerby <stephan.gerb...@googlemail.com> wrote:
> > hi henning
> >
> > do you have some example code for me, how to create a service to
> > detect the headset, please?
> >
> > Cheers
> >
> > On 16 Feb., 17:21, zero <zeroo...@googlemail.com> wrote:
> >
> > > on a side note, i recommend the logcat app for such momentshttp://
> code.google.com/p/android-random/
> >
> > > On Feb 16, 5:04 pm, Henning Schaefer <henning.schae...@gmail.com>
> > > wrote:
> >
> > > > OK, after digging into the android system code, I think I figured out
> > > > what's wrong here... the class "HeadsetObserver" from the base system
> > > > actually sends out this intent with its FLAG_RECEIVER_REGISTERED_ONLY
> > > > flag set... obviously, there's no way to receive this intent without
> > > > implementing a service.
> >
> > > > On 15 Feb., 12:59, Henning Schaefer <henning.schae...@gmail.com>
> > > > wrote:
> >
> > > > > Hi all,
> >
> > > > > yesterday, I spent several hours trying to figure out how to
> capture
> > > > > the HEADSET_PLUG intent with a BroadcastReceiver. The manifest
> defines
> > > > > the <receiver>, with its intent-filter set to <action
> > > > > android:name="android.intent.action.HEADSET_PLUG" />.
> >
> > > > > The receiver is working correctly (I verified that by changing the
> > > > > intent filter to capture things like SMS_RECEIVED including the
> proper
> > > > > permissions and the receiver fired as expected on receiving an
> SMS),
> > > > > but when listening for HEADSET_PLUG, it never fires. Debugging the
> > > > > whole thing is a bit complicated, as the emulator doesn't seem to
> > > > > support headsets and I have to disconnect my target device (a HTC
> > > > > Dream) from USB in order to attach a headset (so there's no logfile
> > > > > viewing). Are there any special permissions required for
> applications
> > > > > to capture the HEADSET_PLUG intent (and if so, which? I've tried
> > > > > several, to no avail)?
> >
> > > > > Maybe the Dream doesn't fire such an intent at all (that'd be bad
> luck
> > > > > for me), but I guess that it must be an issue related to
> application
> > > > > permissions. The documentation says extremely little (well,
> actually:
> > > > > nothing) about the single permissions needed to perform all the
> > > > > actions described in the API docs, so this is absolutely something
> to
> > > > > be improved.
> >
> > > > > What I want to do: Upon detecting a headset, I want to re-route the
> > > > > ringtones from the speakers to the headset, so as not to annoy
> people
> > > > > in my vicinity by a harsh ringing sound (I'm used to this behaviour
> > > > > from my old phone) - by default, the speaker just keeps on ringing,
> no
> > > > > matter whether a headset is attached or not. This part is already
> > > > > working, but now I need to know how to detect headset attachment/
> > > > > detachment events.
> >
> > > > > Thanks in advance,
> >
> > > > > Henning
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