Text box value not updating properly according to the change in spinner value

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Java

Android

there is a spinner in main activity and 1 text box in fragment.my task is to change the value of text box according to the recently selected spinner value.my code works well.but the textbox changes its state only after 2 swipes.I don't know y this lagging happening.help me out

here is my code in main activity

spinner = (Spinner)findViewById(R.id.spinner2);
        final ArrayAdapter<String> dataAdapter1 = new ArrayAdapter<>(this,android.R.layout.simple_spinner_item,array2);
        dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinner.setAdapter(dataAdapter1);
        spinner.invalidate();

        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                //dataAdapter1.notifyDataSetChanged();
                Toast.makeText(getApplicationContext(),"well",Toast.LENGTH_LONG).show();
                String pos = (String) spinner.getSelectedItem();
                SharedPreferences sharedPref = getSharedPreferences("Mode", Activity.MODE_PRIVATE);
                SharedPreferences.Editor prefEditor = sharedPref.edit();
                prefEditor.putString("userChoicemode", pos);
                prefEditor.commit();
            }
            @Override
            public void onNothingSelected(AdapterView<?> parent) {
            }
        });

my fragment code :

final TextView modeselect = (TextView) view.findViewById(R.id.pass);

        final SharedPreferences sharedPref = this.getActivity().getSharedPreferences("Mode", Activity.MODE_PRIVATE);
        String get = sharedPref.getString("userChoicemode",selected);

        modeselect.setText("" + get);

What I have tried:

i have tried using

dataAdapter1.notifyDataSetChanged();

but it doesn't works.