Pass LinkedHashMap between activities

                   Here I am going to explain how to pass LikedHashMap data between activity.Before that we need to know GSON.Google Gson is a simple Java-based library to serialize Java objects to JSON and vice versa.

Add dependencies to gradle

  compile 'com.google.code.gson:gson:2.6.2'

First Activity

        Gson gson = new Gson();

        LinkedHashMap<String, String> map = new 

                                              LinkedHashMap<String, String>();

        map .put("Name", "Dhina");

        map .put("Blog", "Androiddhina");

        map .put("City", "Chennai");

        

        Intent intent = new Intent(activity, DetailsActivity.class);

        intent.putExtra("values",  map);

        startActivity(intent);

Second Activity

         LinkedHashMap<String, String> hashMap = new 

                                     LinkedHashMap<String, String>();

        String str = getIntent().getStringExtra("values");

        Gson gson = new Gson();

        Type entityType = new TypeToken

            <LinkedHashMap<String, String>>() {}.getType();

        hashMap = gson.fromJson(str, entityType);

Happy coding :)