[android help] Set a String Array into Bold in Android

Set a String Array into Bold in Android

I have a ListView where I managed to display many texts on it. Some of the texts are formatted as BOLD. In order to make those texts bold, I used Spannable and it works! However, when I scrolled it down and up again, the index[0] goes multiple.

To avoid that scene, I used a holder to hold my TextViews. I managed to solve that problem in scrolling but for some reasons, the textstyle which is BOLD, gone in my ListView. How can I do that?

MainActivity.java

private void populateListView() {

String[] source = { "Lorem ipsum dolor sit amet", "consectetuer adipiscing elit",
                    "sed diam nonummy nibh " };

final SpannableString out0 = new SpannableString(source[0]);
final SpannableString out2 = new SpannableString(source[2]);

StyleSpan boldSpan = new StyleSpan(Typeface.BOLD);

out0.setSpan(boldSpan, 6, 17, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
out2.setSpan(boldSpan, 0, 8, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

ArrayAdapter adapter = new ArrayAdapter(this,
            R.layout.items, // Layout to use (create)
            source) { // Items to be displayed

        public View getView(int position, View convertView, ViewGroup parent) {
            View v = super.getView(position, convertView, parent);

            try {

                viewHolder.tv = (TextView) lv_procedures.getChildAt(0)
                        .findViewById(R.id.lbl_item);
                viewHolder.tv_2 = (TextView) lv_procedures.getChildAt(2)
                        .findViewById(R.id.lbl_item);

                viewHolder.tv.setText(out0);
                viewHolder.tv_2.setText(out2);

            } catch (Exception e) {
                e.printStackTrace();
            }

            return v;
        }
    };


}

Class ViewHolder

private class ViewHolder {
    TextView tv;
    TextView tv_2;
}

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