Searching in Listview with searched textcolor highlighted in Listview Android

Question

I Have a listview with arrayadapter .. i need to implement this in my music application ... help me out

Answer 1

first add two function getData and set Data Search to baseadapter

   public class bsAdapter extends BaseAdapter {
    Activity cntx;

    public bsAdapter(Activity context) {
        // TODO Auto-generated constructor stub
        this.cntx = context;

    }

    public int getCount() {
        // TODO Auto-generated method stub
        return AllSongs.size();
    }

    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return AllSongs.get(position);
    }

    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return AllSongs.size();
    }
    public void setDataSearch(String data) {
            this.search = data;
    } 

    public String getData() {
        return this.search;
    }

first declare searchData in Search_class

public String searchData;
private bsAdapter mAdapter;

and declare

mAdapter = new bsAdapter(this);

then you add condition in text watcher

  public void onTextChanged(CharSequence s, int start, int before,
                int count) {
            textlength = et.getText().length();
            AllSongs.clear();
            for (int i = 0; i < AllSongsArray.length; i++) {
                if (textlength <= AllSongsArray[i].length()) {
                    if (AllSongsArray[i].toLowerCase().contains(
                            et.getText().toString().toLowerCase().trim())) {
                        AllSongs.add(AllSongsArray[i]);
                    }
                }
              if (textlength == 0) {

                     mAdapter.setDataSearch(null);

                } else {

                    searchData = s.toString().toLowerCase();
                    mAdapter.setDataSearch(SearchData);
                }

         }
            AppendList(AllSongs);
        }

and then put this function in baseadapter

public static CharSequence highlight(String search, String originalText) {

       String normalizedText = Normalizer.normalize(originalText, Normalizer.Form.NFD).replaceAll("\\p{InCombiningDiacriticalMarks}+", "").toLowerCase();

       int start = normalizedText.indexOf(search);

       Spannable highlighted = new SpannableString(originalText);
        if (start < 0) {
            // not found, nothing to to
            return originalText;
        } else {

            while (start >= 0) {

                int spanStart   = Math.min(start, originalText.length());
                int spanEnd     = Math.min(start + search.length(), originalText.length());

                highlighted.setSpan(new StyleSpan(android.graphics.Typeface.BOLD), spanStart, spanEnd, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                highlighted.setSpan(new ForegroundColorSpan(cntx.getResources().getColor(R.color.text_color_white)), spanStart, spanEnd, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                start = normalizedText.indexOf(search, spanEnd);
            }

            return highlighted;
        }
    }

and put this

public View getView(final int position, View convertView,
            ViewGroup parent) {
        View row = null;

        LayoutInflater inflater = cntx.getLayoutInflater();
        row = inflater.inflate(R.layout.listview_item, null);

        TextView tv = (TextView) row.findViewById(R.id.tv_artist_name);

        if(search != null){
                tv.setText(highlight(search,AllSongs.get(position));
            }
            else if (search == null){
                tv.setText(AllSongs.get(position));

            }


        return row;