Accessing SharedPreference not working in Android

Question

I have two activities. In the first activity, I'm putting a String into a shared preference. I then log the getString and I see that it shows up. I then move onto the second activity, and I Toast the getString and I get the default value that shows up.

The first activity code:

SharedPreferences.Editor pref_editor = mcontext.getSharedPreferences("Prefs", Context.MODE_PRIVATE).edit();
SharedPreferences pref = mcontext.getSharedPreferences("Prefs", Context.MODE_PRIVATE);
pref_editor.putString("test", "It works!").commit();
Log.d("XXX", pref.getString("test", "ERRRROR"));

The second activity code:

SharedPreferences pref = mcontext.getSharedPreferences("Prefs", Context.MODE_PRIVATE);
String current = pref.getString("test", "ERROR");
Toast.makeText(getApplicationContext(), current,
                Toast.LENGTH_SHORT).show();

Any idea why I'm getting the default value of "ERROR" when I toast?

It works for me. Only thing different is my `Context`s are each Activity instances. — A--C, Jan 13 '13 at 04:18
Tried with `getApplicationContext()` too and again, no problems. I'd suggest cleaning the project, it might do _something_. Also clear your app's data from your test device. — A--C, Jan 13 '13 at 04:26
Uninstalled the app, and ran it again. Now it works. Ugh. Thanks! — EGHDK, Jan 13 '13 at 04:56
If you want to post that as an answer, I can mark you as correct. Thanks — EGHDK, Jan 13 '13 at 15:57

score 2 · Answer 1 · answered Jan 13 '13 at 04:43

2

Please try this:-

SharedPreferences pref = mcontext.getSharedPreferences("Prefs", Context.MODE_PRIVATE);
SharedPreferences.Editor pref_editor = pref.edit();
pref_editor.putString("test", "It works!")
pref_editor.commit();

answered Jan 13 '13 at 04:43

Swati Rawat

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score 0 · Answer 2 · answered Jan 13 '13 at 03:51

0

You aren't calling commit on the editor. The changes are batched and not written to disk until commit is called.

answered Jan 13 '13 at 03:51

Gabe Sechan

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4

OP is calling coomit see `pref_editor.putString("test", "It works!").commit();` – ρяσѕρєя K Jan 13 '13 at 03:52

score 0 · Answer 3 · edited May 23 '17 at 11:48

0

From this SO post Have you tried apply()?

edited May 23 '17 at 11:48

Community

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answered Jan 13 '13 at 04:27

Chuck D

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Accessing SharedPreference not working in Android

3 Answers3