Requesting multiple Bluetooth permissions in Android Marshmellow -

i'm developing app connectivity connects bluetooth device sdk 23 compile with. i'm having problems requesting multiple permissions bluetooth. have done far:

@override public void onstart() {     super.onstart();     if (d)         log.e(tag, "++ on start ++");       if (contextcompat.checkselfpermission(mybluetoothclientactivity.this,             manifest.permission.bluetooth)             != packagemanager.permission_granted) {     } else {         activitycompat.requestpermissions(mybluetoothclientactivity.this,                 new string[]{manifest.permission.bluetooth, manifest.permission.bluetooth_admin},                 request_enable_bt);     }       if (contextcompat.checkselfpermission(mybluetoothclientactivity.this,             manifest.permission.bluetooth)             != packagemanager.permission_granted) {     } else {          activitycompat.requestpermissions(mybluetoothclientactivity.this,                 new string[]{manifest.permission.bluetooth, manifest.permission.bluetooth_admin},                 request_connect_device_insecure);     } }   @override public void onrequestpermissionsresult(int requestcode,                                        string permissions[], int[] grantresults) {     switch (requestcode) {         case request_enable_bt: {             // if request cancelled, result arrays empty.             if (grantresults.length > 0                     && grantresults[0] == packagemanager.permission_granted) {      // permission granted, yay!                  intent enableintent = new intent(                         bluetoothadapter.action_request_enable);                 startactivityforresult(enableintent, request_enable_bt);               } else {                  // permission denied, boo! disable                 // functionality depends on permission.                 if (commondata.mchatservice == null)                     setupchat();                  toast.maketext(mybluetoothclientactivity.this, "permission denied bluetooth", toast.length_short).show();             }             return;         }          case request_connect_device_insecure: {             // if request cancelled, result arrays empty.             if (grantresults.length > 0                     && grantresults[0] == packagemanager.permission_granted) {                  // permission granted, yay!                 intent enableintent = new intent(                         bluetoothadapter.action_request_enable);                 startactivityforresult(enableintent, request_connect_device_insecure);               } else {                  // permission denied, boo! disable                 // functionality depends on permission.                 if (commondata.mchatservice == null)                     setupchat();                  toast.maketext(mybluetoothclientactivity.this, "permission denied bluetooth", toast.length_short).show();             }             return;         }          // other 'case' lines check other         // permissions app might request     } } 

although i'm able dialogue box requesting enabling bluetooth, don't second permission, i.e. connect device. in logcat, get:

    01-01 06:41:24.334 25473-25473 e/bluetoothchat: ++ on start ++     01-01 06:41:24.344 25473-25473 w/activity: can reqeust 1 set of permissions @ time 

and since i'm not able connect device, stuck here. , code works fine on android version lollipop, causes problem on marshmallow version.

bluetooth , bluetooth_admin normal permissions , therefore automatically granted. permissions in table of dangerous permissions need requested @ runtime.

however, mentioned in android 6.0 changes: access hardware identifier:

to access hardware identifiers of nearby external devices via bluetooth , wi-fi scans, app must have access_fine_location or access_coarse_location permissions:

• wifimanager.getscanresults()
• bluetoothdevice.action_found
• bluetoothlescanner.startscan()

if you're using of methods, you'll need request @ least access_coarse_location @ runtime (as is dangerous permission).