Remove Shared preferences key/value pairs

Question

I store some payment values in one Activity

SharedPreferences spreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
productId = spreferences.getString("productId", "");
purchaseToken = spreferences.getString("purchaseToken", "");
orderId = spreferences.getString("orderId", "");

Now I retrieve them in another one as

SharedPreferences spreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
productId = spreferences.getString("productId", "");
purchaseToken = spreferences.getString("purchaseToken", "");
orderId = spreferences.getString("orderId", "");

My question is to delete them in the second Activity after retrieving them.Thanks.

Seems you mistyped the storing part. Should have a SharedPreferences.Editor usage there — Tharaka Devinda, Jul 23 '15 at 07:22

Pankaj Kumar · Accepted Answer · 2015-07-23T07:28:50.420

39

Use SharedPreferences.Editor remove (String key) to do the same.

where it marks in the editor that a preference value should be removed, which will be done in the actual preferences once commit() is called.

Note that when committing back to the preferences, all removals are done first, regardless of whether you called remove before or after put methods on this editor.

So in your case you can use it like

SharedPreferences.Editor editor = spreferences.edit();
editor.remove("productId");
editor.remove("purchaseToken");
editor.remove("orderId");
editor.commit();

edited Jul 23 '15 at 07:28

answered Jul 23 '15 at 07:23

Pankaj Kumar

81,967
29
167
186

3

Better use apply() than commit(). – Adi Dec 11 '18 at 08:53
Clearing something can lead to data inconsistency. Apply is asynchronous. @Adi – Pankaj Kumar Sep 03 '22 at 15:51

score 8 · Answer 2 · answered Jul 23 '15 at 07:33

To store values in SharedPreference, use below code:

SharedPreferences spreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
Editor spreferencesEditor = spreferences.edit();
spreferencesEditor.putString("productId", "value of prodId");
spreferencesEditor.putString("purchaseToken", "value of purchaseToken");
spreferencesEditor.putString("orderId", "value of orderId");
spreferencesEditor.commit();

To remove specific value from SharedPreference, use below code:

SharedPreferences spreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
Editor spreferencesEditor = spreferences.edit();
spreferencesEditor.remove("productId"); //we are removing prodId by key
spreferencesEditor.commit();

To remove All values from SharedPreference, use below code:

SharedPreferences spreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
Editor spreferencesEditor = spreferences.edit();
spreferencesEditor.clear();
spreferencesEditor.commit();

Prokash Sarkar · Answer 3 · 2015-07-23T07:35:52.827

2

You can remove any values associated with a specific key using this,

SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
SharedPreferences.Editor editor = prefs.edit();
editor.remove("your_key");
editor.commit();

or

SharedPreferences prefs = context.getSharedPreferences(name, mode);
SharedPreferences.Editor editor = prefs.edit();
editor.remove(your_key) 
editor.commit();

edited Jul 23 '15 at 07:35

answered Jul 23 '15 at 07:23

Prokash Sarkar

11,723
1
37
50

Yeah I tried this SharedPreferences.Editor.remove(orderId). But the compiler doesn't recognise the remove(String value) method:( – Theo Jul 23 '15 at 07:26

score 2 · Answer 4 · answered Jul 23 '15 at 07:26

2

To clear the SharedPreferences, use the SharedPreferences Editor In your case:

SharedPreferences spreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
SharedPreferences.Editor editor = spreferences.edit();
editor.clear(); 
editor.commit();

answered Jul 23 '15 at 07:26

krekle

135
6

I have other shared preferences values in my second activity. I only want to delete 3 of them. Not all of them. – Theo Jul 23 '15 at 07:27
1

Alright, then [remove()](http://developer.android.com/reference/android/content/SharedPreferences.Editor.html#remove(java.lang.String)) would be the way to go. Remember to [commit()](http://developer.android.com/reference/android/content/SharedPreferences.Editor.html#commit()) – krekle Jul 23 '15 at 07:30

score 0 · Answer 5 · 2015-07-23T07:27:48.603

You need to do same like I am removing my preferences.

    SharedPreferences preferences = contextAct.getSharedPreferences("PREF_KEY", 0);
                    preferences.edit().remove("productId").commit();
                    preferences.edit().remove("purchaseToken").commit();
                    preferences.edit().remove("orderId").commit();


    Format : preferences.edit().remove("Your Key").commit();

This will clear your preferences.

score 0 · Answer 6 · answered Jul 23 '15 at 07:25

SharedPreferences spreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
SharedPreferences.Editor editor=spreferences.edit();
 editor.remove("productId");
 editor.remove("purchaseToken");
 editor.remove("orderId");
 editor.commit();
 // you can also use editor.apply(); instead of editor.commit(); using apply will handle the removing in the background

score 0 · Answer 7 · answered Jul 03 '23 at 09:20

0

SharedPreferences preferences = getSharedPreferences("myPref",MODE_PRIVATE);
    preferences.edit().remove("productId").commit();

answered Jul 03 '23 at 09:20

Mohammad Faizan

191
1
4

Remove Shared preferences key/value pairs

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