CODEWITHSUNDEEP
javaandroidjsonandroid-listviewsimpleadapter
Mornor
Mornor

Reputation: 3783

SimpleAdapter on HashMap does not work properly

I have a JSON like this:

 [{"message":"Hello","id":1,"name":"Hello"},{"message":"James","id":2,"name":"Smith"}]

Which I use to populate an ArrayList<HashMap<String, String>> in order to diplay the json's items into a ListView.
This is the code I am currently using:

   private void createListView(){
        for(int i = 0 ; i < json.length() ; i++){
            try{
                JSONObject temp = json.getJSONObject(i);
                HashMap<String, String> map = new HashMap<>();
                map.put("name", temp.getString("name"));
                map.put("message", temp.getString("message"));
                data.add(map);
            }catch (JSONException e){
                e.printStackTrace();
            }
        }

        String[] from = new String[]{"name", "message"};
        int to[] = new int[]{android.R.id.text1};

        ListAdapter adapter = new SimpleAdapter(getBaseContext(), data, android.R.layout.simple_list_item_1, from, to);
        setListAdapter(adapter);
        Log.d("Debug", json.toString());

    }

This code almost work, but not the way I would. It display only the name field.

How can I modify it in order to display both the message and name field ?

Upvotes: 0

Views: 225

Answers (5)

Nagaraju V
Nagaraju V

Reputation: 2757

Change this line 

int to[] = new int[]{android.R.id.text1};

to

int to[] = new int[]{android.R.id.text1,android.R.id.text2};

Hope this will helps you.

Upvotes: 2

Suhail Mehta
Suhail Mehta

Reputation: 5542

SimpleAdapter playlistadapter = new SimpleAdapter(getActivity().getApplicationContext(), songsList, R.layout.file_view,
                new String[] { "songTitle","songAlbum", "songartist","songPath" }, new int[] { R.id.checkTextView, R.id.text2, R.id.text3, R.id.text4 });

playlistadapter.setViewBinder(new SimpleAdapter.ViewBinder(){
    boolean setViewValue(View view, Object data, String textRepresentation){
            if(view.getId () == R.id.songartist){
                view.setText("("+textRepresentation+")");
            }
    }
});

Upvotes: 1

LaurentY
LaurentY

Reputation: 7653

Use "android.R.layout.simple_list_item_2" instead of "android.R.layout.simple_list_item_1"

ListAdapter adapter = new SimpleCursorAdapter(
                 this,
                 android.R.layout.simple_list_item_2,
                 mCursor,     // Pass in the cursor to bind to.
                 new String[] {People.NAME, People.COMPANY}, // Array of cursor columns to bind to.
                 new int[] {android.R.id.text1, android.R.id.text2});  // Parallel array of which template objects to bind to those columns.

         // Bind to our new adapter.
         setListAdapter(adapter);

Upvotes: 1

Amsheer
Amsheer

Reputation: 7131

Error in this line

int to[] = new int[]{android.R.id.text1};

Here you are mention only one control . I guess that is for message. You need to add another one control for Name.

Upvotes: 1

ρяσѕρєя K
ρяσѕρєя K

Reputation: 132982

It display only the message field.

Because using android.R.layout.simple_list_item_1 for row which contain only on TextView with android.R.id.text1 id

How can I modify it in order to display both the message and name field ?

Use android.R.layout.simple_list_item_2 as layout for rows and change to array :

int to[] = new int[]{android.R.id.text1,android.R.id.text2};

Upvotes: 2

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