Android Open Source - K6nele Server List Activity

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2011-2012, Institute of Cybernetics at Tallinn University of Technology
 */*from w  ww  .j a va  2s  . c om*/
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package ee.ioc.phon.android.speak;

import java.net.MalformedURLException;

import ee.ioc.phon.android.speak.provider.Server;

import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.AdapterView.AdapterContextMenuInfo;

/**
 * <p>This activity displays the list of speech recognition server URLs
 * and allows the user to add/edit/remove entries. The data is
 * populated via SimpleCursorAdapter from the Servers-table.</p>
 * 
 * @author Kaarel Kaljurand
 */
public class ServerListActivity extends RecognizerIntentListActivity {

  private static final Uri CONTENT_URI = Server.Columns.CONTENT_URI;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    String[] columns = new String[] {
        Server.Columns._ID,
        Server.Columns.URL
    };

    int[] to = new int[] {
        R.id.itemServerId,
        R.id.itemServerUrl
    };


    Cursor managedCursor = managedQuery(
        CONTENT_URI,
        columns, 
        null,
        null,
        Server.Columns.URL + " ASC"
        );

    SimpleCursorAdapter mAdapter = new SimpleCursorAdapter(
        this,
        R.layout.list_item_server,
        managedCursor,
        columns,
        to
        );

    ListView lv = getListView();
    setEmptyView(getString(R.string.emptylistServers));
    lv.setAdapter(mAdapter);

    registerForContextMenu(lv);

    setClickToFinish(CONTENT_URI, Server.Columns._ID);
  }


  public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.servers, menu);
    return true;
  }


  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case R.id.menuServersAdd:
      Utils.getTextEntryDialog(
          this,
          getString(R.string.dialogTitleNewServer),
          "",
          new ExecutableString() {
            public void execute(String url) {
              try {
                insertUrl(CONTENT_URI, Server.Columns.URL, url);
              } catch (MalformedURLException e) {
                toast(getString(R.string.exceptionMalformedUrl));
              }
            }
          }
          ).show();
      return true;
    default:
      return super.onContextItemSelected(item);
    }
  }


  @Override
  public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.cm_server, menu);
  }


  @Override
  public boolean onContextItemSelected(MenuItem item) {
    final AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
    Cursor cursor = (Cursor) getListView().getItemAtPosition(info.position);
    final long key = cursor.getLong(cursor.getColumnIndex(Server.Columns._ID));
    String url = cursor.getString(cursor.getColumnIndex(Server.Columns.URL));

    switch (item.getItemId()) {
    case R.id.cmServerEdit:
      Utils.getTextEntryDialog(
          this,
          getString(R.string.dialogTitleChangeServer),
          url,
          new ExecutableString() {
            public void execute(String newUrl) {
              try {
                updateUrl(CONTENT_URI, key, Server.Columns.URL, newUrl);
              } catch (MalformedURLException e) {
                toast(getString(R.string.exceptionMalformedUrl));
              }
            }
          }
          ).show();
      return true;
    case R.id.cmServerDelete:
      Utils.getYesNoDialog(
          this,
          String.format(getString(R.string.confirmDeleteEntry), url),
          new Executable() {
            public void execute() {
              delete(CONTENT_URI, key);
            }
          }
          ).show();
      return true;
    default:
      return super.onContextItemSelected(item);
    }
  }
}

Java Source Code List

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