Android store array in preferences

Question

I know only primitives can be stored in the android preferences, but do arrays count? Can I store an array of, say, Strings or booleans in an android preference?

CommonsWare · Accepted Answer · 2010-07-14 20:16:04Z

2

Only if you turn the array into a string.

answered Jul 14, 2010 at 20:16

CommonsWare

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2 Comments

JRC Over a year ago

then how to retrieve integer array again while loading array from preference for android 2.1.

njzk2 Over a year ago

turn the string into an array... (one easy way of doing this could be using JSON formatter/parser)

a54studio · Accepted Answer · 2012-01-22 15:04:27Z

2

 SharedPreferences settings = getSharedPreferences(PREFS_NAME,0);
    for(int n =0;n<LevelMenu.buttonState.length;n++){ 
        LevelMenu.buttonState[n]= (byte) settings.getInt("levelsave"+n,0);
    }

Above will get and populate the array and below will depopulate and save.

SharedPreferences settings = getSharedPreferences(PREFS_NAME,0);
   SharedPreferences.Editor editor = settings.edit();
   for(int n =0;n<LevelMenu.buttonState.length;n++){
        editor.putInt("levelsave"+n,LevelMenu.buttonState[n]);
   }
editor.commit();

answered Jan 22, 2012 at 15:04

a54studio

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