android - How do you delete a sharedPreference by clicking on a listView item? -

i have created list displays shared preference string. create this...

adapter = new arrayadapter<string>(this, android.r.layout.simple_list_item_1, listitems); setlistadapter(adapter);   if (sharedpreferences.contains(name0)) {     string prefs = sharedpreferences.getstring(name0, "");     listitems.add(prefs); } 

and on other preferences. trying figure out how delete list item, , shared preference along well. can't figure out if should use onclick listener, or delete button in list or other method perhaps haven't read about. i'd make simple , intuitive user.

so question is, how can edit existing code delete list item , preference displaying. thank help.

this ended figuring out on weekend, takes shared preference has 2 values comma separated. ex. (wifiname_ssid,john's wifi). splits shared preference values, , checks see if shared preference values match string stored in list. if shared preference , list item clicked match, item deleted.

adapter = new arrayadapter<string>(this,             android.r.layout.simple_list_item_1, listitems); lv = (listview) findviewbyid(android.r.id.list); lv.setadapter(adapter); lv.setonitemclicklistener(new onitemclicklistener() {     public void onitemclick(adapterview<?> a, view v, int position,             long id) {         alertdialog.builder adb = new alertdialog.builder(                 nicknameprefs.this);         adb.settitle("delete?");         adb.setmessage("are sure want delete \n"                 + adapter.getitem(position));         final int positiontoremove = position;         adb.setnegativebutton("cancel", null);         adb.setpositivebutton("ok", new alertdialog.onclicklistener() {             public void onclick(dialoginterface dialog, int which) {                  string item = adapter.getitem(positiontoremove);                 list<string> items = arrays.aslist(item                         .split("\\s*,\\s*"));                 adapter.remove(adapter.getitem(positiontoremove));                  string prefs1 = sharedpreferences.getstring(name0, "");                 list<string> items1 = arrays.aslist(prefs1                         .split("\\s*,\\s*"));                   if (item.contains(items1.get(0))                         || item.contains(items1.get(1))) {                     sharedpreferences.edit().remove(name0).apply();                 }                  adapter.notifydatasetchanged();             }         });         adb.show();     } });