To access shared SharedPreference from service in android

I want to access SharedPreference within my background service i'd used PreferenceManager.getDefaultSharedP开发者_运维问答references() but it gives nullpoint Exception

Thanks

You have to use the Context like this:

Context ctx = getApplicationContext();
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(ctx);

try this:

SharedPreference pref = getSharedPreferences(PrefName, 0);

If you have created SharedPreferences like:

private static final String PREFS_NAME = "UserData";
private static final String PREFS_VALUE1 = "value1";

then use this:

SharedPreferences preferences = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); 
value1 = preferences.getString(PREFS_VALUE1, "default_no");