how to apply Next and previous button according to id
<pre><code>public class AndroidJSONParsingActivity extends ListActivity {

    // url to make request
    private static String url = "http://api.androidhive.info/contacts/";

    // JSON Node names
    private static final String TAG_CONTACTS = "contacts";
    private static final String TAG_ID = "id";
    private static final String TAG_NAME = "name";
    private static final String TAG_EMAIL = "email";

    // contacts JSONArray
    JSONArray contacts = null;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        // Hashmap for ListView
        ArrayList&lt;HashMap&lt;String, String&gt;&gt; contactList = new ArrayList&lt;HashMap&lt;String, String&gt;&gt;();

        // Creating JSON Parser instance
        JSONParser jParser = new JSONParser();

        // getting JSON string from URL
        JSONObject json = jParser.getJSONFromUrl(url);

        try {
            // Getting Array of Contacts
            contacts = json.getJSONArray(TAG_CONTACTS);

            // looping through All Contacts
            for (int i = 0; i &lt; contacts.length(); i++) {
                JSONObject c = contacts.getJSONObject(i);

                // Storing each json item in variable
                String id = c.getString(TAG_ID);
                String name = c.getString(TAG_NAME);
                String email = c.getString(TAG_EMAIL);
                // creating new HashMap
                HashMap&lt;String, String&gt; map = new HashMap&lt;String, String&gt;();

                // adding each child node to HashMap key =&gt; value
                map.put(TAG_ID, id);
                map.put(TAG_NAME, name);
                map.put(TAG_EMAIL, email);

                // adding HashList to ArrayList
                contactList.add(map);
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }

        /**
         * Updating parsed JSON data into ListView
         * */
        ListAdapter adapter = new SimpleAdapter(this, contactList,
                R.layout.list_item, new String[] { TAG_NAME, TAG_EMAIL },
                new int[] { R.id.name, R.id.email });

        setListAdapter(adapter);

        // selecting single ListView item
        ListView lv = getListView();

        // Launching new screen on Selecting Single ListItem
        lv.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView&lt;?&gt; parent, View view,
                    int position, long id) {
                // getting values from selected ListItem
                String name = ((TextView) view.findViewById(R.id.name))
                        .getText().toString();
                String cost = ((TextView) view.findViewById(R.id.email))
                        .getText().toString();

                // Starting new intent
                Intent in = new Intent(getApplicationContext(),
                        SingleMenuItemActivity.class);
                in.putExtra(TAG_NAME, name);
                in.putExtra(TAG_EMAIL, cost);

                startActivity(in);

            }
        });

    }

}
</code></pre>

<p>Using this Class am able to print data after Parsing In Listview name and email .</p>

<pre><code>public class SingleMenuItemActivity extends Activity {

    // JSON node keys
    private static final String TAG_NAME = "name";

    Button next;
    Button Previous;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.single_list_item);

        Previous = (Button) findViewById(R.id.button1);
        next = (Button) findViewById(R.id.button2);

        Previous.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

            }
        });

        next.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

            }
        });

        // getting intent data
        getdata();
    }

    public void getdata() {

        Intent in = getIntent();

        // Get JSON values from previous intent
        String name = in.getStringExtra(TAG_NAME);

        // Displaying all values on the screen
        TextView lblName = (TextView) findViewById(R.id.name_label);
        lblName.setText(name);

    }
}
</code></pre>

<p>I have apply @ button On For Next and another for previous  if click on Next it should display Next id name in  SingleMenuItemActivity  Class if click on Previous it should display Previous id Name in SingleMenuItemActivity  . please tell me how i ll do this . i have tried and doing First time BUt not able to do i don't know how i will call all Ids and create function so that it should work </p>
