Gson _ Listview
//gradle gson
compile 'com.google.code.gson:gson:2.8.0'
//convet listview to string
String save_ = new Gson().toJson(itemsList);
//reverse process
Gson gson = new Gson();
Type listType = new TypeToken<List<Adapter1Items>>(){}.getType();
List<Adapter1Items> itemsList = (List<Adapter1Items>) gson.fromJson(result, listType);