I'm trying to implement filtering of a ListView which is uses a custom object adapter, but I can't find any useful samples. The included code is very simplified, so no- keep in mind I can't use an regular ArrayAdapter. I have a EditText above the ListView, and when the user enters text in the EditText widget I would like to filter the ListView by the text written in the EditText. Any suggestions would be much appreciated!
Here is the snippet from the activity class:
public class management_objects extends Activity { private static List<User> UserList; private EfficientAdapter adapter = null; private ListView objectListView = null; private EditText SearchText = null; private static class EfficientAdapter extends BaseAdapter implements Filterable{ private LayoutInflater mInflater; public EfficientAdapter(Context context) { mInflater = LayoutInflater.from(context); } public int getCount() { return UserList.size(); } public Object getItem(int position) { return position; } public long getItemId(int position) { return position; } public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { convertView = mInflater.inflate(R.layout.imagelayout_2lines, null); holder = new ViewHolder(); holder.text = (TextView) convertView.findViewById(R.id.managementObjectText); holder.subtext = (TextView) convertView.findViewById(R.id.managementObjectSubText); holder.icon = (ImageView) convertView.findViewById(R.id.managementObjectIcon); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } holder.text.setText(UserList.get(position).getFirstName()); holder.subtext.setText(UserList.get(position).getLastName()); holder.icon.setImageResource(R.drawable.user); return convertView; } static class ViewHolder { TextView text; TextView subtext; ImageView icon; } @Override public Filter getFilter() { return null; } } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.adobjectlist); Bundle extras = getIntent().getExtras(); SearchText = (EditText) findViewById(R.id.SearchBox); SearchText.addTextChangedListener(filterTextWatcher); objectListView = (ListView) findViewById(R.id.ObjectList); objectListView.setOnItemClickListener(Item_Click); adapter = new EfficientAdapter(this); ComputerName = extras.getString("COMPUTER_NAME"); //Get User list from webservice ShowUsers(); }Here is The User class:
public class User { private int UserId; private String FirstName; private String LastName; public int getUserId() { return UserId; } public void setUserId(int UserId) { this.UserId = UserId; } public String getFirstName() { return FirstName; } public void setFirstName(String FirstName) { this.FirstName = FirstName; } public String getLastName() { return LastName; } public void setLastName(String LastName) { this.LastName = LastName; } }
android listview filter adapter