android - Using fetchUuidsWithSdp() to prevent friendly name caching -

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definition:

my non-android device (nad) bluetooth device loops name 60 0 , resets in infinite fashion.

objective: i'm trying have android device closely possible detect countdown , initiate alarm close of nad counter possible.

i'm doing getting native bluetoothadapter of device startdiscovery() manually tying function onscreen buttons , keeping eye on toasts set through broadcastreceiver, updates onscreen textviews enables me monitor device receiving in real-time

requirement: system & resource efficiency not concern in context.

problem:(keep eye out part 1 , part 2 in code) i'm not sure how using fetchuuidswithsdp() helping me since textview it's updating remains empty , textview getting populated extra_name intent returning action action_name_changed cached, initial discovery name (ie. application not reading name after initial discovery).

my code can found below

sorry newbie mistakes,i'm trying best :)

    public class btbroadcastreceiver extends broadcastreceiver{          @override         public void onreceive(context context, intent intent) {             //pulling action name broadcasted intent             string action = intent.getaction();             if(bluetoothadapter.action_discovery_started.equals(action)){                 stoaster("startedd");//show toast discovery has started              }             else if(bluetoothadapter.action_discovery_finished.equals(action)){                 stoaster("endedd");//show toast signifying end of discovery                 /*                 if(notfound){                     mbtadapter.startdiscovery();                 }*/             }             else if(bluetoothdevice.action_found.equals(action)){                 //when device found                 bluetoothdevice device = intent.getparcelableextra(bluetoothdevice.extra_device);                 //make sure it's indeed nad device checking mac address                 if(device.getaddress().equals(macaddress)){                     if(notfound){                         //show device name on screen                         stoaster("found device");                         notfound = false;                         nad = device;                         nameshower.settext(device.getname());                     }                     else{                         //do nothing if it's second time device found                     }                 }             }             else if(bluetoothdevice.action_name_changed.equals(action)){                 //name changed                 bluetoothdevice founddevice = intent.getparcelableextra(bluetoothdevice.extra_device);                 //make sure it's indeed nad device                 if(founddevice.equals(nad)){                     stoaster("name change!"); //show on screen name change intent has been caught                      //part1                     //to prevent caching of old device name stackoverflow article                      //advised using function don't totally understand yet                     //nad.fetchuuidswithsdp();                     //either commented or not commented outcome same (no refresh of name)                        //part2                     //tried showing new name 2 different ways below, neither of effective                     //by inspecting textviews on-screen                     nameshower.settext(founddevice.getname());                     eventview.settext(intent.getstringextra(bluetoothdevice.extra_name));                     }                 }             }      };

i have worked on bluetooth project , perceived discovery process should in intent can left registered in background. , discover devices in range, need invoke btdevice.startdiscovery() search them. startdiscovery() drains battery if enabled continuously. if want, can edit post share snipet used scan devices. hope helps !


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