Sharedpreferences retrieve String

Question

I save some EditText data into shared preferences and then on another activity I show it in TextView (it works - easy) - but when I want to use saved variable in a method it does not work - do you have any idea how to retrieve e.g. IP from shared pref?

sharedpreferences = PreferenceManager.getDefaultSharedPreferences(this);
String AJPI  = Text1.getText().toString();
editor.putString(IPv4, AJPI);
editor.commit();

check demo http://www.androidhive.info/2012/08/android-session-management-using-shared-preferences/ — IntelliJ Amiya, Jun 16 '17 at 08:17
Possible duplicate of [How to use SharedPreferences in Android to store, fetch and edit values](https://stackoverflow.com/questions/3624280/how-to-use-sharedpreferences-in-android-to-store-fetch-and-edit-values) — Sufian, Jun 19 '17 at 08:59

score 0 · Answer 1 · answered Jun 16 '17 at 08:18

0

Did you add this line?

editor = sharedpreferences.edit();

answered Jun 16 '17 at 08:18

dustblue

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score 0 · Answer 2 · answered Jun 16 '17 at 08:22

0

Save:

PreferenceManager.getDefaultSharedPreferences(context)
.edit()
.putString(IPv4, "myString").apply();

Retrieve:

String s =
PreferenceManager.getDefaultSharedPreferences(context)
.getString("myString", "defaultStringIfNothingFound");

answered Jun 16 '17 at 08:22

S.R

2,819
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22
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It works for showing the string on the layout/Activity but it is not working for using the variable String in the method... – Trew laz Jun 16 '17 at 08:45
is this `IPv4` variable you want to save into `Sharedpreferences` or this `AJPI` ? because as I can see in your code you are not saving the `editText` variable in `Preferences`. So it should be like this: `.putString(AJPI, "myString").apply();` – S.R Jun 16 '17 at 09:47

score 0 · Answer 3 · answered Jun 16 '17 at 08:46

Save to SharePreference

 SharedPreferences pref = getSharedPreferences("Preference", MODE_PRIVATE);
 SharedPreferences.Editor editor = pref.edit();
 editor.putString("Value", your_value);
 editor.commit();

Read from SharePreference

 SharedPreferences pref = getSharedPreferences("Preference", MODE_PRIVATE);
 String phone_number = pref .getString("Value", "");

Sharedpreferences retrieve String

3 Answers3