Question

I know this has been asked a lot around SO, but I just can’t seem to get this working.
Situation : I have a dialog with a EditText in it with an accept button. I would like to store the value of the string with SharedPreferences when the user touch the accept button. Here’s the code I have so far.

public void showDialog()
{
    final Dialog dialog = new Dialog(VentilationActivity.this);
    dialog.setContentView(R.layout.menu_options);       
    dialog.setTitle("Configuration de l'adresse IP");           
    dialog.setCancelable(true);     
    dialog.show();

    EditText adressIp = (EditText) dialog.findViewById(R.id.editText1);

    SharedPreferences preferences = getSharedPreferences("Agrinuvo", 0);  
    String texte = preferences.getString("VentIpKey", "");

    adressIp.setText(texte); 

    InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    imm.showSoftInput(adressIp, InputMethodManager.SHOW_IMPLICIT);

    Button btnAccept = (Button) dialog.findViewById(R.id.button1);
    btnAccept.setOnClickListener(new OnClickListener() 
    {
        @Override
        public void onClick(View v)                                                         
        {
            EditText adressIp = (EditText) dialog.findViewById(R.id.editText1); 
            textIp = adressIp.getText().toString();

            SharedPreferences preferences = getPreferences(MODE_PRIVATE); 
            SharedPreferences.Editor editor = preferences.edit();
            editor.putString("VentIpKey", textIp);
            editor.commit();

            InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.hideSoftInputFromWindow(adressIp.getWindowToken(), 0);
            dialog.dismiss();                                                               
        }
    }); 
}

And, of course this is not working. Everytime I close the dialog window and reopen it the EditText text is empty. Thanks for any help you can provide.

Answer 1

How about;

public void showDialog() {
    ....
    final SharedPreferences preferences = getSharedPreferences("Agrinuvo", 0);
    ....
        @Override
        public void onClick(View v) {
            ....
            // Use previous preferences instance instead.
            // SharedPreferences preferences = getPreferences(MODE_PRIVATE); 
            SharedPreferences.Editor editor = preferences.edit();
            editor.putString("VentIpKey", textIp);
            editor.commit();
            ....
        }
    }
}

Anyway, it seems so that you’re writing to different preferences than where you read the default value from.