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android - AudioManager and system volume change receiver -


i've followed instructions on this page until "preparing code android 2.2 without restricting android 2.2". if i'm building against 2.3 version, guess should working @ point it's not. i've registered receiver in manifest:

<receiver android:name="remotecontrolreceiver"> <intent-filter> <action android:name="android.intent.action.media_button" /> </intent-filter> </receiver>

created class remotecontrolreceiver declaration:

public class remotecontrolreceiver extends broadcastreceiver { @override public void onreceive(context context, intent intent) { toast.maketext(context, "onreceive", toast.length_short).show(); } }

and boostrapped in starting activity.

private audiomanager _audiomanager; private componentname _componentname; @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.main); _audiomanager = (audiomanager) getsystemservice(context.audio_service); _componentname = new componentname(getpackagename(), remotecontrolreceiver.class.getname()); } @override protected void onresume() { super.onresume(); _audiomanager.registermediabuttoneventreceiver(_componentname); _audiomanager.requestaudiofocus(new onaudiofocuschangelistener() { @override public void onaudiofocuschange(int focuschange) { toast.maketext(getapplicationcontext(), "onfocuschanged", toast.length_short).show(); } }, audiomanager.stream_music, 0); }

could point out missing here ? have assumption in order receive thodse messages activity has play media stuff. gonna test right away.

p.s. see i've added uneccessary code - don't pay attention requestaudiofocus.

thanks suggestions.

android - audiomanager , system volume change receiver - stack overflow

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up vote 2 down vote favorite

i've followed instructions on this page until "preparing code android 2.2 without restricting android 2.2". if i'm building against 2.3 version, guess should working @ point it's not. i've registered receiver in manifest:

<receiver android:name="remotecontrolreceiver"> <intent-filter> <action android:name="android.intent.action.media_button" /> </intent-filter> </receiver>

created class remotecontrolreceiver declaration:

public class remotecontrolreceiver extends broadcastreceiver { @override public void onreceive(context context, intent intent) { toast.maketext(context, "onreceive", toast.length_short).show(); } }

and boostrapped in starting activity.

private audiomanager _audiomanager; private componentname _componentname; @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.main); _audiomanager = (audiomanager) getsystemservice(context.audio_service); _componentname = new componentname(getpackagename(), remotecontrolreceiver.class.getname()); } @override protected void onresume() { super.onresume(); _audiomanager.registermediabuttoneventreceiver(_componentname); _audiomanager.requestaudiofocus(new onaudiofocuschangelistener() { @override public void onaudiofocuschange(int focuschange) { toast.maketext(getapplicationcontext(), "onfocuschanged", toast.length_short).show(); } }, audiomanager.stream_music, 0); }

could point out missing here ? have assumption in order receive thodse messages activity has play media stuff. gonna test right away.

p.s. see i've added uneccessary code - don't pay attention requestaudiofocus.

thanks suggestions.

share|improve question
    
as experiences, seems listening volume buttons broadcast receivers, or outside of app impossible. here my question (which has no answer till now). – user942821 jul 7 '12 @ 8:21
    
but i've seen apps respond physical volume button clicks. apps somehow able adjust elements volume seekbars when user hits buttons. – user1462299 jul 7 '12 @ 8:25
1  
if app running in foreground, can use onkeydown()/ onkeyup()… i've kept searching other solutions no luck :-( – user942821 jul 7 '12 @ 8:32

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