Android phone background music, set alarm, make a phone call, hang up the phone, alarm clock and music simultaneously sounded

Modify:

Frameworks\base\media\java\android\media\mediafocuscontrol.java:

1, Import Packages:

Import Com.android.internal.telephony.ITelephony;

Import Android.os.ServiceManager;

2, increase the access to the current phone call state method Getphonecallstate ():

private int getphonecallstate () {

int phonecallstate = Telephonymanager.call_state_idle;

Telephonymanager Telephonymanager = (telephonymanager) mcontext.getsystemservice (Context.telephony_service);

Itelephony Telephonyservice = ITelephony.Stub.asInterface (Servicemanager.getservice (Context.telephony_service));

if (telephonyservice! = null) {

LOG.W (TAG, "Getphonecallstate:mtelephonyservice! = null");

try {

Phonecallstate = Telephonyservice.getprecisecallstate ();

LOG.W (TAG, "getPhoneCallState:telephonyService.getPreciseCallState () =" + phonecallstate);

} catch (RemoteException ex) {

if (Telephonymanager! = null) {

Phonecallstate = Telephonymanager.getcallstate ();

LOG.W (TAG, "getPhoneCallState:telephonyManager.getCallState () =" + phonecallstate);

}

LOG.W (TAG, "Catch exception when Getprecisecallstate:ex ="

+ ex.getmessage ());

}

} else {

LOG.W (TAG, "getphonecallstate:telephonyservice = = null");

if (Telephonymanager! = null) {

Phonecallstate = Telephonymanager.getcallstate ();

LOG.W (TAG, "getPhoneCallState:telephonyManager.getCallState () =" + phonecallstate);

}

}

LOG.W (TAG, "getphonecallstate:phonecallstate =" + phonecallstate);

return phonecallstate;

}

3. Modification

Private Boolean Canreassignaudiofocus () {

Focus requests is rejected during a phone call or when the phone is ringing

This was equivalent to in_voice_comm_focus_id have the FOCUS

if (!mfocusstack.isempty () && Mfocusstack.peek (). Hassameclient (in_voice_comm_focus_id)) {

return false;

}

return true;

}

For

Private Boolean Canreassignaudiofocus () {

Focus requests is rejected during a phone call or when the phone is ringing

This was equivalent to in_voice_comm_focus_id have the FOCUS

if (!mfocusstack.isempty () && Mfocusstack.peek (). Hassameclient (in_voice_comm_focus_id) && ( Getphonecallstate ()! = Telephonymanager.call_state_idle)) {

LOG.W (TAG, "canreassignaudiofocus:return false");

return false;

}

LOG.W (TAG, "Canreassignaudiofocus:return true");

return true;

}

Android phone background music, set alarm, make a phone call, hang up the phone, alarm clock and music simultaneously sounded