Remove all data from sharedpreference

Question

I want to clear all data from shared preferences.I tried the below code but it's not working.What wrong am I doing?

SharedPreferences preferences = context.getSharedPreferences("PREFERENCE", 0);
SharedPreferences.Editor editor = preferences.edit();
editor.clear();
editor.commit();

Are you 100% sure you are reading the same preferences file where access them? — harism, Aug 06 '15 at 11:50
@harism .I am trying to remove all the sharedprefrences for this particular package.Will it not work? — Soham, Aug 06 '15 at 11:56
Show the piece of code how you created your SharedPreference.. — Sumighosh Charuvil, Aug 06 '15 at 11:57
@SumighoshCharuvil why you need how SharedPreferences are created? — Jordi Castilla, Aug 06 '15 at 12:03
@JordiCastilla i want to know he using PreferenceManager or a Context in creating shared preference — Sumighosh Charuvil, Aug 06 '15 at 12:06
@SumighoshCharuvil you are right.It's my mistake.I am answering my question. — Soham, Aug 06 '15 at 12:12

score 1 · Answer 1 · answered Aug 06 '15 at 11:52

1

Make sure that 'PREFERENCE' is the name of preference that you want to clear.

answered Aug 06 '15 at 11:52

Sunny Shah

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that is not what OP is asking... he wants to remove ALL sharedpreferences – Jordi Castilla Aug 06 '15 at 12:03

score 1 · Accepted Answer · answered Aug 06 '15 at 12:15

This below piece of code helps me.I have to use PreferenceManager.

        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
        SharedPreferences.Editor editor = preferences.edit();
        editor.clear();
        editor.commit();

Ah! Simple mistake.

Jordi Castilla · Answer 3 · 2015-08-06T12:04:41.617

You problem is how you get the preferences:

 SharedPreferences preferences = context.getSharedPreferences("PREFERENCE", 0);

You need to get ALL the preferences:

SharedPreferences preferences = getPreferences(0);

Now, to remove all the SharedPreferences use Editor.clear()

Mark in the editor to remove all values from the preferences. Once commit is called, the only remaining preferences will be any that you have defined in this editor.

SharedPreferences preferences = getPreferences(0);
SharedPreferences.Editor editor = preferences.edit();
editor.clear();
editor.commit();

According documentation:

Returns a reference to the same Editor object, so you can chain put calls together.

I bet this will work also:

SharedPreferences preferences = getPreferences(0);
SharedPreferences.Editor editor = preferences.edit();           
editor.clear().commit();

SharedPreferences.Editor.clear() is showing `non-static method clear() cannot be called from static content` — Soham, Aug 06 '15 at 12:04

Remove all data from sharedpreference

3 Answers3