Save and Retrieve Selected Spinner Position

问题:

How would you save and retrieve a spinners selection, so when you come back the same item on the spinner is selected? Maybe with shared preferences?

回答1:

to Save data on the sharedPreferences( put this code on the onItemSelected() method and save the selected value's position of your spinner) :

int userChoice = spinner.getSelectedItemPosition();
SharedPreferences sharedPref = getSharedPreferences("FileName",0);
SharedPreferences.Editor prefEditor = sharedPref.edit();
prefEditor.putInt("userChoiceSpinner",usersChoice);
prefEditor.commit();

To get data from sharedPreferences :

SharedPreferences sharedPref = getSharedPreferences("FileName",MODE_PRIVATE);
int spinnerValue = sharedPref.getInt("userChoiceSpinner",-1);
if(spinnerValue != -1) {
  // set the selected value of the spinner 
  spinner.setSelection(spinnerValue);
}

refer this : set selection in spinner and this : get the position of the selected item in a spinner

See Also :

• Android Tutorial : Using SharedPreferences

• Android Tutorial : Switch Between Activities and Pass Data Between Them