After selected listitem shows the details of them on another activity through json?

Question

I have activity in which I show the list item and in list item I only want to show the name of places and I am able to show it but when I click on the item I want related to that place name it shows the detail on another activity i.e. location detail. so please help me to resolve my problem I am new in android.

here is my both activity code:

locationList=( ListView)findViewById(R.id.list_Surroundings);



    // Hashmap for ListView
    ArrayList<HashMap<String, String>> locationOfList = new ArrayList<HashMap<String, String>>();

    adapter = new SimpleAdapter(this, locationOfList,
            R.layout.list_item1,
            new String[] { TAG_NAME }, new int[] {
                    R.id.name});

    locationList.setAdapter(adapter);

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

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

    try {
     // Getting Array of Category
    location=json.getJSONArray(TAG_LOCATION);

    //looping through all categories
    for(int i = 0; i < location.length(); i++){
        JSONObject c = location.getJSONObject(i);
        JSONObject c1=c.getJSONObject(TAG_LOCATION1);

        // Storing each json item in variable
            String LocationID = c1.getString(TAG_LOCATION_ID);
            String Name = c1.getString(TAG_NAME);
            String Phone = c1.getString(TAG_PHONE);
            String FormattedPhone = c1.getString(TAG_FORMATTED_PHONE);
            String Address = c1.getString(TAG_ADDRESS);
            String CrossStreet = c1.getString(TAG_CROSS_STREET);
            String Lat = c1.getString(TAG_LAT);
            String Lng = c1.getString(TAG_LNG);
            String Distance = c1.getString(TAG_DISTANCE);
            String PostalCode = c1.getString(TAG_POSTAL_CODE);
            String City = c1.getString(TAG_CITY);
            String State = c1.getString(TAG_STATE);
            String Country = c1.getString(TAG_COUNTRY);

        // creating new HashMap
           HashMap<String, String> map = new HashMap<String, String>();

        // adding each child node to HashMap key => value
           map.put(TAG_LOCATION_ID, LocationID);
           map.put(TAG_NAME, Name);
           map.put(TAG_PHONE, Phone);
           map.put(TAG_FORMATTED_PHONE, FormattedPhone);
           map.put(TAG_ADDRESS, Address);
           map.put(TAG_CROSS_STREET, CrossStreet);
           map.put(TAG_LAT, Lat);
           map.put(TAG_LNG, Lng);
           map.put(TAG_DISTANCE, Distance); 
           map.put(TAG_POSTAL_CODE, PostalCode);
           map.put(TAG_CITY, City);
           map.put(TAG_STATE, State);
           map.put(TAG_COUNTRY, Country);

           // adding HashList to ArrayList
           locationOfList.add(map);
    }
    } catch (Exception e) {
        // TODO: handle exception
        e.printStackTrace();
    }

    locationList.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {
            // TODO Auto-generated method stub

             // getting values from selected ListItem
            String Name = ((TextView) view.findViewById(R.id.name)).getText().toString();
            String Distance = ((TextView) view.findViewById(R.id.distance_list1)).getText().toString();
            String Country = ((TextView) view.findViewById(R.id.country_list1)).getText().toString();
            String City = ((TextView) view.findViewById(R.id.city_list1)).getText().toString();
            String Phone = ((TextView) view.findViewById(R.id.phone_list1)).getText().toString();

         // Starting new intent
            Intent in = new Intent(getApplicationContext(), LocationDetails.class);
            in.putExtra(TAG_NAME, Name);
            in.putExtra(TAG_DISTANCE, Distance);
            in.putExtra(TAG_COUNTRY, Country);
            in.putExtra(TAG_CITY, City);
            in.putExtra(TAG_PHONE, Phone);

            startActivity(in);
        }
    });


public class LocationDetails extends Activity{

// JSON node keys
    private static final String TAG_NAME = "Name";
    private static final String TAG_PHONE = "Phone";
    private static final String TAG_ADDRESS = "Address";
    private static final String TAG_DISTANCE= "Distance";
    private static final String TAG_CITY = "City";
    private static final String TAG_COUNTRY= "Country";

    private TextView name,phone,address,distance,city,country;

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

        // getting intent data
        Intent in = getIntent();

        // Get JSON values from previous intent
        String Name = in.getStringExtra(TAG_NAME);
        String Phone = in.getStringExtra(TAG_PHONE);
        String Address = in.getStringExtra(TAG_ADDRESS);
        String Distance = in.getStringExtra(TAG_DISTANCE);
        String City = in.getStringExtra(TAG_CITY);
        String Country = in.getStringExtra(TAG_COUNTRY);

        // Displaying all values on the screen
        name= (TextView) findViewById(R.id.TxtView_name);
        phone=(TextView)findViewById(R.id.TxtView_PhoneField);
        address=(TextView)findViewById(R.id.TxtView_AddressField);
        distance=(TextView)findViewById(R.id.TxtView_DistanceField);
        city=(TextView)findViewById(R.id.TxtView_CityField);
        country=(TextView)findViewById(R.id.TxtView_CountryField);

        name.setText(Name);
        phone.setText(Phone);
        address.setText(Address);
        distance.setText(Distance);
        city.setText(City);
        country.setText(Country);
    }
}

Answer 1

You are trying to get the data from the TextViews, which is not at all right.

You need to fetch the values of the selected item from the ArrayList by using locationOfList(position) inside the onClick() of the listItem.

Something like this :

 locationList.setOnItemClickListener(new OnItemClickListener() {

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position,
            long id) {
        // TODO Auto-generated method stub

        // getting values from selected ListItem
        HashMap<String, String> selectedMap =  locationOfList.get(position);           

     // Starting new intent
        Intent in = new Intent(getApplicationContext(), LocationDetails.class);
        in.putExtra(selectedMap);

        startActivity(in);
    }
});

And in your second Activity, use this example to retrieve the data from the HashMap.

Answer 2

In sending activity, try replacing

in.putExtra(TAG_NAME, Name);
in.putExtra(TAG_DISTANCE, Distance);
in.putExtra(TAG_COUNTRY, Country);
in.putExtra(TAG_CITY, City);
in.putExtra(TAG_PHONE, Phone);

with

Bundle extras = new Bundle();
extras.putString(TAG_NAME, Name);
extras.putString(TAG_DISTANCE, Distance);
extras.putString(TAG_COUNTRY, Country);
extras.putString(TAG_CITY, City);
extras.putString(TAG_PHONE, Phone);
extras.putExtras(extras);

In receiving activity, try replacing

// getting intent data
        Intent in = getIntent();

        // Get JSON values from previous intent
        String Name = in.getStringExtra(TAG_NAME);
        String Phone = in.getStringExtra(TAG_PHONE);
        String Address = in.getStringExtra(TAG_ADDRESS);
        String Distance = in.getStringExtra(TAG_DISTANCE);
        String City = in.getStringExtra(TAG_CITY);
        String Country = in.getStringExtra(TAG_COUNTRY);

with

Bundle extras = getIntent().getExtras();

if(extras != null) {

    String Name = extras.getString(TAG_NAME);
    String Phone = extras.getString(TAG_PHONE);
    String Address = extras.getString(TAG_ADDRESS);
    String Distance = extras.getString(TAG_DISTANCE);
    String City = extras.getString(TAG_CITY);
    String Country = extras.getString(TAG_COUNTRY);  

}