Android: Retrieving shared preferences of other application

Question

I have a settings application from which i have to retrieve other applications preferences, but i don't have the details of keys in them, how can i retrieve all the available keys and values in that preference?

Thanks, Swathi

Answer 1

Okay! using this code in Application 1 ( with package name is "com.sharedpref1" ) to store data with Shared Preferences.

SharedPreferences prefs = getSharedPreferences("demopref",                     Context.MODE_WORLD_READABLE);             SharedPreferences.Editor editor = prefs.edit();             editor.putString("demostring", strShareValue);             editor.commit(); 

And using this code in Application 2 to get data from Shared Preferences in Application 1. We can get it because we use MODE_WORLD_READABLE in application 1:

    try {                 con = createPackageContext("com.sharedpref1", 0);                 SharedPreferences pref = con.getSharedPreferences(                         "demopref", Context.MODE_PRIVATE);                 String data = pref.getString("demostring", "No Value");                 displaySharedValue.setText(data);              } catch (NameNotFoundException e) {                 Log.e("Not data shared", e.toString());             } 

More information please visit this URL: http://androiddhamu.blogspot.in/2012/03/share-data-across-application-in.html

Answer 2

Assuming the preference are WORLD_READABLE, this might work:

final ArrayList<HashMap<String,String>> LIST = new ArrayList<HashMap<String,String>>(); // where com.example is the owning  app containing the preferences Context myContext = createPackageContext("com.example", Context.MODE_WORLD_WRITEABLE);  SharedPreferences testPrefs = myContext.getSharedPreferences("test_prefs", Context.MODE_WORLD_READABLE);  Map<String, ?> items = testPrefs .getAll(); for(String s : items.keySet()) {   // do something like String value = items.get(s).toString()); }