CODEWITHSUNDEEP
android
SoulRayder
SoulRayder

Reputation: 5166

Resetting shared preferences upon reinstallation

Is there any way to delete or reset shared preferences data when re-installing an app, without uninstalling the app and installing it?

What I mean to say is, currently, I am developing an app which uses shared preferences, but as I am still developing it, I keep running and uploading the app to the test phone through Eclipse after I make changes. Currently I am unable to run the app from the very beginning of its expected process ( after the first time) , without uninstalling the older version and then uploading the app again.

Upvotes: 0

Views: 2981

Answers (3)

Kuffs
Kuffs

Reputation: 35661

Check in your launch activity whether to clear the preferences or not with a function like this:

    SharedPreferences prefs = this.getSharedPreferences("prefs", Context.MODE_PRIVATE);
    if (!prefs.getBoolean("FirstRun", true)) {
        // Not the first time so clear prefs
        prefs.edit().clear().commit();
    } else {
        // Set the value for future runs
        prefs.edit().putBoolean("FirstRun", false).commit();
    }

Upvotes: 0

kalyan pvs
kalyan pvs

Reputation: 14590

For this in your launching activity onCreate() method check whether the shared preference file exist or not if it is exist delete it.and later create it where ever you want.. you can check the preference file exist or not like this..

public boolean isFirstTime() {
        return getDatabasePath("your file name").exists();
    }

Upvotes: 1

KOTIOS
KOTIOS

Reputation: 11194

Clear the activities like :

Intent intent = new Intent(this, Login.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

Clear ur shared Pref :

SharedPreferences pref = this.getSharedPreferences("mypref", Context.MODE_PRIVATE);
getSharedPreferences("pref", Context.MODE_PRIVATE).edit().clear().commit();

Upvotes: 1

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