Saving and loading spinner value using sharedPreferences

Question

I tried to save and load the selected item in the spinner using sharedPreferences . Even though the code shows no errors, it's not working. Somebody help.

country=(Spinner)findViewById(R.id.spinner);
spinner = (Spinner) findViewById(R.id.spinner);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
                R.array.countries_array, android.R.layout.simple_spinner_item);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);

public void saveFile(){
        SharedPreferences sharedPref = getSharedPreferences(FileName,Context.MODE_PRIVATE);
        SharedPreferences.Editor editor=sharedPref.edit();
        int userChoice = country.getSelectedItemPosition();
        editor.putInt("userChoiceSpinner",userChoice);
}

public void readFile(){
        SharedPreferences sharedPref = getSharedPreferences(FileName,Context.MODE_PRIVATE);
        int spinnerValue = sharedPref.getInt("userChoiceSpinner",0);
        country.setSelection(spinnerValue);
}

Answer 1

You forgot to use editor.apply(); to save value in SharedPreferences

editor.apply();

• Commit your preferences changes back from this Editor to the SharedPreferences object it is editing. This atomically performs the requested modifications, replacing whatever is currently in the SharedPreferences .

Try this

    public void saveFile(){
        SharedPreferences sharedPref = getSharedPreferences(FileName,Context.MODE_PRIVATE);
        SharedPreferences.Editor editor=sharedPref.edit();
        int userChoice = country.getSelectedItemPosition();
        editor.putInt("userChoiceSpinner",userChoice);
        editor.apply();
    }

Answer 2

You set country and spinner both same id show may one spinner not set data

country=(Spinner)findViewById(R.id.spinner);
spinner = (Spinner) findViewById(R.id.spinner);