private  String drawRuning = off;   --------------  that



      location_switch = (MaterialAnimatedSwitch) findViewById(R.id.location_switch);
        location_switch.setOnCheckedChangeListener(new MaterialAnimatedSwitch.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(boolean isOnline) {

                if (isOnline){

                    FirebaseDatabase.getInstance().goOnline();

                    StartLocationUpdate();
                    Displaylocation();
                    Snackbar.make(mapFragment.getView(),"You Are Online",Snackbar.LENGTH_SHORT).show();

                }else {
                    FirebaseDatabase.getInstance().goOffline();

                    StoplocationUpdates();
                    mCurrent.remove();
                    mMap.clear();
                    if (drawRuning.equals("on")){   ----------------   that
                        drawRuning = "off"; -------------------------   that
                        handler.removeCallbacks(drawPathRunnable);   --- --    because that
                        Snackbar.make(mapFragment.getView(),"You Are Offline",Snackbar.LENGTH_SHORT).show();
                    }else {
                        Snackbar.make(mapFragment.getView(),"You Are Offline",Snackbar.LENGTH_SHORT).show();
                    }
                }
            }
        });



        and in


         private void getDirection() {

        if (drawRuning.equals("off")) {   ------------   that

            drawRuning = "on";     ------------   that