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@@ -0,0 +1,261 @@
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+package org.uab.android.ui.listviewwithmenus;
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+
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+import java.util.ArrayList;
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+import java.util.Collections;
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+import java.util.List;
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+
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+import android.app.Activity;
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+import android.os.Bundle;
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+import android.view.ContextMenu;
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+import android.view.ContextMenu.ContextMenuInfo;
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+import android.view.Menu;
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+import android.view.MenuInflater;
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+import android.view.MenuItem;
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+import android.view.MenuItem.OnActionExpandListener;
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+import android.view.View;
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+import android.widget.AdapterView;
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+import android.widget.AdapterView.OnItemClickListener;
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+import android.widget.ArrayAdapter;
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+import android.widget.ListView;
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+import android.widget.SearchView;
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+import android.widget.TextView;
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+import android.widget.Toast;
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+
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+public class MainActivity extends Activity implements
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+ SearchView.OnQueryTextListener {
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+
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+ ListView listOfColors;
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+ ArrayAdapter<String> listArrayAdapter;
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+ List<String> countriesList = new ArrayList<String>();
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+
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+ boolean searchViewCollapsed = true;
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+
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+ @Override
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+ protected void onCreate(Bundle savedInstanceState) {
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+ super.onCreate(savedInstanceState);
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+ setContentView(R.layout.activity_main);
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+
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+ // Get a reference to the ListView
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+ listOfColors = (ListView) findViewById(R.id.listView1);
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+
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+ // Register the ListView for a Context Menu
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+ registerForContextMenu(listOfColors);
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+
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+ // Create a new List from a static array of Strings
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+ // This is necessary in order to remove elements from the List
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+ Collections.addAll(countriesList, COUNTRIES);
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+
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+ // Create an ArrayAdapter from the previously created list
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+ listArrayAdapter = new ArrayAdapter<String>(this, R.layout.list_item, countriesList);
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+
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+ // Set the Adapter on the ListView
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+ listOfColors.setAdapter(listArrayAdapter);
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+
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+ // Enable filtering when the user types in the virtual keyboard
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+ listOfColors.setTextFilterEnabled(true);
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+
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+ // Set an OnItemClickListener on the ListView
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+ listOfColors.setOnItemClickListener(new OnItemClickListener() {
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+
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+ @Override
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+ public void onItemClick(AdapterView<?> parent, View view, int position,
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+ long id) {
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+
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+ CharSequence itemText = ((TextView) view).getText();
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+ Toast.makeText(MainActivity.this, itemText, Toast.LENGTH_SHORT)
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+ .show();
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+ }
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+ });
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+ }
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+
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+ // This method is invoked to create the options menu
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+ @Override
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+ public boolean onCreateOptionsMenu(Menu menu) {
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+
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+ MenuInflater menuInflater = getMenuInflater();
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+ menuInflater.inflate(R.menu.activity_main_menu, menu);
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+
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+ // Register to listen for changes in the search action button (SearchView)
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+ MenuItem searchMenuItem = menu.findItem(R.id.search);
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+ searchMenuItem.setOnActionExpandListener(new OnActionExpandListener() {
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+
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+ // This method is invoked when the user presses the search icon
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+ @Override
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+ public boolean onMenuItemActionExpand(MenuItem item) {
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+
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+ searchViewCollapsed = false;
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+ return true;
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+ }
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+
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+ // This method is invoked when the search view is dismissed
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+ @Override
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+ public boolean onMenuItemActionCollapse(MenuItem item) {
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+
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+ searchViewCollapsed = true;
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+ return true;
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+ }
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+ });
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+
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+ // Get a reference to the SearchView
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+ SearchView searchView = (SearchView) searchMenuItem.getActionView();
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+
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+ // Set a listener for query text events in the SearchView
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+ searchView.setOnQueryTextListener(this);
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+
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+ return super.onCreateOptionsMenu(menu);
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+ }
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+
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+ // This method is invoked when an item in the options menu has been selected
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+ @Override
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+ public boolean onOptionsItemSelected(MenuItem item) {
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+
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+ switch (item.getItemId()) {
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+ case R.id.help:
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+ Toast.makeText(this, "Has obtenido ayuda!", Toast.LENGTH_SHORT)
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+ .show();
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+ return true;
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+
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+ case R.id.moreHelp:
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+ Toast.makeText(this, "Has obtenido m‡s ayuda!", Toast.LENGTH_SHORT)
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+ .show();
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+ return true;
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+
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+ case R.id.evenMoreHelp:
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+ return true;
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+
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+ case R.id.add:
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+ Toast.makeText(this, "En estos momentos no puedes a–adir m‡s elementos.", Toast.LENGTH_SHORT)
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+ .show();
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+ return true;
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+
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+ default:
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+ break;
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+ }
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+ return super.onOptionsItemSelected(item);
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+ }
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+
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+ // This method is invoked to create the context menu
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+ @Override
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+ public void onCreateContextMenu(ContextMenu menu, View v,
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+ ContextMenuInfo menuInfo) {
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+ super.onCreateContextMenu(menu, v, menuInfo);
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+
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+ MenuInflater menuInflater = getMenuInflater();
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+ menuInflater.inflate(R.menu.list_context_menu, menu);
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+ }
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+
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+ // This method is invoked when an item in the context menu has been selected
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+ @Override
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+ public boolean onContextItemSelected(MenuItem item) {
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+
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+ AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
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+ int selectedItemPosition = info.position;
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+
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+ switch (item.getItemId()) {
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+ case R.id.remove:
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+ // Remove an element from the countries list and then notify the Adapter
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+ // that the data has changed
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+ countriesList.remove(selectedItemPosition);
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+ listArrayAdapter.notifyDataSetChanged();
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+ return true;
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+
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+ case R.id.share:
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+ Toast.makeText(this, "Has seleccionado la opci—n de compartir.", Toast.LENGTH_SHORT)
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+ .show();
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+ return true;
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+
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+ default:
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+ break;
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+ }
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+ return super.onContextItemSelected(item);
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+ }
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+
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+ // This method is invoked when the user introduces text in the SearchView
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+ @Override
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+ public boolean onQueryTextChange(String newText) {
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+
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+ // There is known bug for ListView/ArrayAdapter with a search filter (https://code.google.com/p/android/issues/detail?id=9666)
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+ // The main issue is that when adding a Filter to the ArrayAdapter, this creates a copy of his items list.
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+ // The next time notifyDataSetChanged() is called it will check the mOriginalValue array instead of mObjects in the ArrayAdapter.
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+ // A possible solution is to re-set the ArrayAdapter for the ListView when the user has finished searching within the SearchView
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+ if ( newText.isEmpty() )
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+ restartListArrayAdapter();
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+
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+ else
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+ listArrayAdapter.getFilter().filter(newText);
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+
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+ return true;
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+ }
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+
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+ @Override
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+ public boolean onQueryTextSubmit(String query) {
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+
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+ return false;
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+ }
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+
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+ // Function that re-sets the ArrayAdapter for the ListView
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+ private void restartListArrayAdapter() {
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+
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+ listOfColors.setAdapter(null);
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+ listArrayAdapter = new ArrayAdapter<String>(this, R.layout.list_item, countriesList);
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+ listOfColors.setAdapter(listArrayAdapter);
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+ }
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+
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+ static final String[] COUNTRIES = new String[] { "Afghanistan", "Albania",
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+ "Algeria", "American Samoa", "Andorra", "Angola", "Anguilla",
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+ "Antarctica", "Antigua and Barbuda", "Argentina", "Armenia",
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+ "Aruba", "Australia", "Austria", "Azerbaijan", "Bahrain",
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+ "Bangladesh", "Barbados", "Belarus", "Belgium", "Belize", "Benin",
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+ "Bermuda", "Bhutan", "Bolivia", "Bosnia and Herzegovina",
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+ "Botswana", "Bouvet Island", "Brazil",
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+ "British Indian Ocean Territory", "British Virgin Islands",
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+ "Brunei", "Bulgaria", "Burkina Faso", "Burundi", "Cote d'Ivoire",
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+ "Cambodia", "Cameroon", "Canada", "Cape Verde", "Cayman Islands",
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+ "Central African Republic", "Chad", "Chile", "China",
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+ "Christmas Island", "Cocos (Keeling) Islands", "Colombia",
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+ "Comoros", "Congo", "Cook Islands", "Costa Rica", "Croatia",
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+ "Cuba", "Cyprus", "Czech Republic",
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+ "Democratic Republic of the Congo", "Denmark", "Djibouti",
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+ "Dominica", "Dominican Republic", "East Timor", "Ecuador", "Egypt",
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+ "El Salvador", "Equatorial Guinea", "Eritrea", "Estonia",
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+ "Ethiopia", "Faeroe Islands", "Falkland Islands", "Fiji",
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+ "Finland", "Former Yugoslav Republic of Macedonia", "France",
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+ "French Guiana", "French Polynesia", "French Southern Territories",
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+ "Gabon", "Georgia", "Germany", "Ghana", "Gibraltar", "Greece",
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+ "Greenland", "Grenada", "Guadeloupe", "Guam", "Guatemala",
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+ "Guinea", "Guinea-Bissau", "Guyana", "Haiti",
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+ "Heard Island and McDonald Islands", "Honduras", "Hong Kong",
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+ "Hungary", "Iceland", "India", "Indonesia", "Iran", "Iraq",
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+ "Ireland", "Israel", "Italy", "Jamaica", "Japan", "Jordan",
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+ "Kazakhstan", "Kenya", "Kiribati", "Kuwait", "Kyrgyzstan", "Laos",
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+ "Latvia", "Lebanon", "Lesotho", "Liberia", "Libya",
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+ "Liechtenstein", "Lithuania", "Luxembourg", "Macau", "Madagascar",
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+ "Malawi", "Malaysia", "Maldives", "Mali", "Malta",
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+ "Marshall Islands", "Martinique", "Mauritania", "Mauritius",
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+ "Mayotte", "Mexico", "Micronesia", "Moldova", "Monaco", "Mongolia",
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+ "Montserrat", "Morocco", "Mozambique", "Myanmar", "Namibia",
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+ "Nauru", "Nepal", "Netherlands", "Netherlands Antilles",
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+ "New Caledonia", "New Zealand", "Nicaragua", "Niger", "Nigeria",
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+ "Niue", "Norfolk Island", "North Korea", "Northern Marianas",
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+ "Norway", "Oman", "Pakistan", "Palau", "Panama",
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+ "Papua New Guinea", "Paraguay", "Peru", "Philippines",
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+ "Pitcairn Islands", "Poland", "Portugal", "Puerto Rico", "Qatar",
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+ "Reunion", "Romania", "Russia", "Rwanda", "Sqo Tome and Principe",
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+ "Saint Helena", "Saint Kitts and Nevis", "Saint Lucia",
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+ "Saint Pierre and Miquelon", "Saint Vincent and the Grenadines",
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+ "Samoa", "San Marino", "Saudi Arabia", "Senegal", "Seychelles",
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+ "Sierra Leone", "Singapore", "Slovakia", "Slovenia",
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+ "Solomon Islands", "Somalia", "South Africa",
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+ "South Georgia and the South Sandwich Islands", "South Korea",
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+ "Spain", "Sri Lanka", "Sudan", "Suriname",
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+ "Svalbard and Jan Mayen", "Swaziland", "Sweden", "Switzerland",
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+ "Syria", "Taiwan", "Tajikistan", "Tanzania", "Thailand",
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+ "The Bahamas", "The Gambia", "Togo", "Tokelau", "Tonga",
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+ "Trinidad and Tobago", "Tunisia", "Turkey", "Turkmenistan",
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+ "Turks and Caicos Islands", "Tuvalu", "Virgin Islands", "Uganda",
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+ "Ukraine", "United Arab Emirates", "United Kingdom",
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+ "United States", "United States Minor Outlying Islands", "Uruguay",
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+ "Uzbekistan", "Vanuatu", "Vatican City", "Venezuela", "Vietnam",
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+ "Wallis and Futuna", "Western Sahara", "Yemen", "Yugoslavia",
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+ "Zambia", "Zimbabwe" };
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+}
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Cristian Tanas
