Question

I need to read data from a txt file located under res/raw/file.txt and display each line in a ListView. But when the app starts the ListView is empty.
This is defined before the onCreate:

private SimpleAdapter sa;
ArrayList<HashMap<String,String>> list = new ArrayList<HashMap<String,String>>();

This is the code:

     InputStream inputStream = getResources().openRawResource(R.raw.definitions);
    BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
    String line;
    try 
    {
        HashMap<String, String> item;
        while ((line = reader.readLine()) != null) 
        {
            String[] strings = TextUtils.split(line, "-");
            if (strings.length < 2) 
            {
                item = new HashMap<String, String>();
                item.put("line1", strings[0].trim());
                item.put("line2", strings[1].trim());
                list.add(item);
            }
        }
        mTextView.setText("");

        sa = new SimpleAdapter(this, list,
                R.layout.result,
                new String[] { "line1","line2" },
                new int[] {R.id.word, R.id.definition});

        mListView.setAdapter(sa);

        reader.close();


    } 
    catch(Exception e)
    {
        Toast.makeText(this, "Error", Toast.LENGTH_SHORT).show();

    }

Answer 1

it looks fine but there is a minor logical change if (strings.length <= 2). and it works for me.

try

            if (strings.length <= 2) {
                item = new HashMap<String, String>();
                item.put("line1", strings[0].trim());
                item.put("line2", strings[1].trim());
                list.add(item);
            }