Android Sharedpreferences Timelimit

Question

In my android application I am using shared preference to remember some inputs so that whenver application get started user don't need to type the input every time.. now I need to logout the sharedpreference if the time of using the app is more than 24 hours.. Like in gmail something our login details will be remembered for 24 hours or something and after tha it will be automatically logout...What change I need to do for that.. I am giving my code below..

SharedPreference for remembering

if (spl1.equals("English")  ) 
            {SharedPreferences setting = this.getSharedPreferences(PREFS_NAME,0);
                    SharedPreferences.Editor editors = setting.edit();
                    editors.putString("lo", "lo");

                    editors.putString("fn", firstName);
                    editors.putString("mn",middleName);
                    editors.putString("ln",lastName);

                    editors.putString("dt",dates);
                    editors.putString("mt",months);
                    editors.putString("yrs",years);
                    //Passing exp no, heart no, lifepath number
                    editors.putLong("name11", sum11);
                    editors.putLong("name12", sum12);
                    editors.putLong("name10", sum10);

                    editors.commit();



                    Intent t = new Intent(FullExplanationEntry.this, TabLayoutActivityh.class);
}

logout

*

@Override
    public boolean onOptionsItemSelected(MenuItem item) {
            if (item.getItemId() == R.id.button04) {
                    SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
                    SharedPreferences.Editor editor = settings.edit();
                    editor.remove("lo");
                    editor.commit();
                    finish();
            }
            return super.onOptionsItemSelected(item);

}

"now I need to logout the sharedpreference if the time of using the app is more than 24 hours", you mean you want to clear the values from sharedprefrences ? — r4jiv007, Feb 25 '14 at 10:50
exactly.. after 24 hrs.. automatically .. values need to be cleared — Jocheved, Feb 25 '14 at 10:52

score 8 · Accepted Answer · edited May 23 '17 at 12:30

8

What you can do is , store the last login time in sharedprefence using :-

editors.putLong("lastlogin", new Date().getTime());

and when users starts the app next time, get the lastlogin time and check whether its older than 24hrs , if yes then clear the data using :-

Deleting shared preferences

edited May 23 '17 at 12:30

Community

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answered Feb 25 '14 at 10:53

r4jiv007

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ya.. that good.. do u know how to check if the time is more than 24 hrs – Jocheved Feb 25 '14 at 10:56
1

u can calculate the difference between two dates and if it exceeds 24*60*60*1000 then its older than 24 hrs or u can refer this http://www.mkyong.com/java/how-to-compare-dates-in-java/ – r4jiv007 Feb 25 '14 at 11:10
I am glad that it was helpful !! – r4jiv007 Feb 25 '14 at 11:46

score 4 · Answer 2 · edited Feb 25 '14 at 11:17

4

You can add the system time also into the shared preference and then check for the same and compare the date from the shared-preference whenever the user launch the application or when the application comes to foreground.

If this exceeds more that your limit (24hrs) , just clear the shared-preference.

edited Feb 25 '14 at 11:17

InnocentKiller

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answered Feb 25 '14 at 10:52

Vyshnavi

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Android Sharedpreferences Timelimit

2 Answers2