sharedpreferences - Android - Storing/retrieving strings with shared preferences

Question

As the title says, I want to save and retrieve certain strings. But my code won't pass through the first line neither in retrieve or store. I tried to follow this link: http://developer.android.com/guide/topics/data/data-storage.html

private void savepath(String pathtilsave, int i) {
    String tal = null;
    // doesn't go past the line below
    SharedPreferences.Editor editor = getPreferences(MODE_PRIVATE).edit();
    tal = String.valueOf(i);
    editor.putString(tal, pathtilsave);
    editor.commit();
}

and my retrieve method:

public void getpaths() {
    String tal = null;
    // doesn't go past the line below
    SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
    for (int i = 1; i <= lydliste.length - 1; i++) {
        tal = String.valueOf(i);
        String restoredText = settings.getString(tal, null);
        if (restoredText != null) {
            lydliste[i] = restoredText;
        }
    }
}

lydliste is a static string array. PREFS_NAME is

public static final String PREFS_NAME = "MyPrefsFile";

question from:https://stackoverflow.com/questions/12074156/android-storing-retrieving-strings-with-shared-preferences

Answer 1

To save to preferences:

PreferenceManager.getDefaultSharedPreferences(context).edit().putString("MYLABEL", "myStringToSave").apply();  

To get a stored preference:

PreferenceManager.getDefaultSharedPreferences(context).getString("MYLABEL", "defaultStringIfNothingFound"); 

Where context is your Context.

---

If you are getting multiple values, it may be more efficient to reuse the same instance.

 SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
 String myStrValue = prefs.getString("MYSTRLABEL", "defaultStringIfNothingFound");
 Boolean myBoolValue = prefs.getBoolean("MYBOOLLABEL", false);
 int myIntValue = prefs.getInt("MYINTLABEL", 1);

And if you are saving multiple values:

Editor prefEditor = PreferenceManager.getDefaultSharedPreferences(context).edit();
prefEditor.putString("MYSTRLABEL", "myStringToSave");
prefEditor.putBoolean("MYBOOLLABEL", true);
prefEditor.putInt("MYINTLABEL", 99);
prefEditor.apply();  

---

Note: Saving with apply() is better than using commit(). The only time you need commit() is if you require the return value, which is very rare.