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

So here i got the code corrected and working fine ...

public class SearchingClass extends ListActivity {
    EditText et;
    ListView lv;
    Context context;
    static ArrayList AllSongs;
    String[] AllSongsArray;
    SongsManager songManager;
    private ArrayList> songsList = new ArrayList>();
    int textlength = 0;
    public String SearchData;
    private bsAdapter mAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_searching_class);
        et = (EditText) findViewById(R.id.EditText01);
        lv = (ListView) findViewById(android.R.id.list);
        context = getBaseContext();
        songManager = new SongsManager();
        songsList = songManager.getPlayList(context);
        AllSongs = new ArrayList();
        mAdapter = new bsAdapter(this);
        for (int i = 0; i < songsList.size(); i++) {
            HashMap obj = songsList.get(i);

            AllSongs.add(obj.get("songTitle"));
        }
        AllSongsArray = new String[AllSongs.size()];
        AllSongsArray = AllSongs.toArray(AllSongsArray);
        setListAdapter(new bsAdapter(this));
        et.addTextChangedListener(new TextWatcher() {
            public void afterTextChanged(Editable s) {
            }

            public void beforeTextChanged(CharSequence s, int start, int count,
                    int after) {
            }

            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);
            }

        });
        lv.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView parent, View view,
                    int position, long id) {
                // TODO Auto-generated method stub
                Toast.makeText(getApplicationContext(), AllSongs.get(position),
                        Toast.LENGTH_SHORT).show();
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.searching_class, menu);
        return true;
    }

    public void AppendList(ArrayList str) {
        setListAdapter(new bsAdapter(this));
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    public static class bsAdapter extends BaseAdapter {
        static Activity cntx;
        static String search;
        String value;

        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) {
            System.out.println("recieved value" + data);
            this.search = data;
        }

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

        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);
            // tv.setText(AllSongs.get(position));
            System.out.println("search data value" + search);

            if (search != null) {

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

            }

            return row;
        }

        public 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.red)), spanStart,
                            spanEnd, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                    start = normalizedText.indexOf(search, spanEnd);
                }

                return highlighted;
            }
        }
    }