/*
* TableAndListDemo.java
*
* Copyright � 1998-2011 Research In Motion Limited
*
* 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.
*
* Note: For the sake of simplicity, this sample application may not leverage
* resource bundles and resource strings. However, it is STRONGLY recommended
* that application developers make use of the localization features available
* within the BlackBerry development platform to ensure a seamless application
* experience across a variety of languages and geographies. For more information
* on localizing your application, please refer to the BlackBerry Java Development
* Environment Development Guide associated with this release.
*/
package com.rim.samples.device.ui.tableandlistdemo;
import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
import net.rim.device.api.command.Command;
import net.rim.device.api.command.CommandHandler;
import net.rim.device.api.command.ReadOnlyCommandMetadata;
import net.rim.device.api.io.LineReader;
import net.rim.device.api.ui.MenuItem;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.util.StringProvider;
/*
* This application demonstrates the use of the Table and List APIs. There
* are five screens accessible via the menu. The TableScreen is an example
* of the use of a table, including layout management and the application
* of styles. The ListScreen demonstrates the use of lists to display sequential
* information. The RichListScreen is an example of displaying sequential
* information with rich formatting and images. The TreeScreen demonstrates
* the use of a SortedTableModel to nest data beneath headers.
* The TableAdapterScreen demonstrates the use of a TableAdapter to display
* data stored in another structure in a table.
*/
public final class TableAndListDemo extends UiApplication {
/**
* Entry point for application
*
* @param args
* Command line arguments (not used)
*/
public static void main(final String[] args) {
// Create a new instance of the application and make the currently
// running thread the application's event dispatch thread.
final UiApplication app = new TableAndListDemo();
app.enterEventDispatcher();
}
/**
* Retrieves data from resource text file and stores contents in a string
* tokenizer
*
* @return A string tokenizer containing data from file
*/
private DemoStringTokenizer getStringTokenizer() {
final InputStream stream =
getClass().getResourceAsStream("/resources/blackberry.txt");
final LineReader lineReader = new LineReader(stream);
final StringBuffer buffer = new StringBuffer();
while (true) {
try {
buffer.append(new String(lineReader.readLine()));
buffer.append("\n");
} catch (final EOFException eof) {
// We've reached the end of the file
break;
} catch (final IOException ioe) {
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
Dialog.alert("LineReader#readLine() threw "
+ ioe.toString());
}
});
}
}
String data = buffer.toString();
data = data.replace('\r', ',');
data = data.replace('\n', ',');
return new DemoStringTokenizer(data);
}
/**
* Creates a new TableAndListDemo object
*/
public TableAndListDemo() {
// Push the main screen
pushScreen(new TableAndListDemoScreen());
}
/**
* Main screen for the application. Menu contains items to launch each of
* the included demo screens.
*/
private class TableAndListDemoScreen extends MainScreen {
/**
* Creates a new TableAndListDemoScreen object
*/
public TableAndListDemoScreen() {
add(new LabelField("Please select an item from the menu"));
addMenuItem(new ListScreenMenuItem());
addMenuItem(new RichListScreenMenuItem());
addMenuItem(new TableScreenMenuItem());
addMenuItem(new TableAdapterScreenMenuItem());
addMenuItem(new TreeScreenMenuItem());
}
/**
* A menu item to display a TableScreen
*/
private class TableScreenMenuItem extends MenuItem {
/**
* Creates a new TableScreenMenuItem object
*/
public TableScreenMenuItem() {
super(new StringProvider("Table Screen"), 0x230010, 0);
this.setCommand(new Command(new CommandHandler() {
/**
* @see net.rim.device.api.command.CommandHandler#execute(ReadOnlyCommandMetadata,
* Object)
*/
public void execute(final ReadOnlyCommandMetadata metadata,
final Object context) {
pushScreen(new TableScreen(getStringTokenizer()));
}
}));
}
}
/**
* A menu item to display a ListScreen
*/
private class ListScreenMenuItem extends MenuItem {
/**
* Creates a new ListScreenMenuItem object
*/
public ListScreenMenuItem() {
super(new StringProvider("List Screen"), 0x230020, 1);
this.setCommand(new Command(new CommandHandler() {
/**
* @see net.rim.device.api.command.CommandHandler#execute(ReadOnlyCommandMetadata,
* Object)
*/
public void execute(final ReadOnlyCommandMetadata metadata,
final Object context) {
pushScreen(new SimpleListScreen(getStringTokenizer()));
}
}));
}
}
/**
* A menu item to display a RichListScreen
*/
private class RichListScreenMenuItem extends MenuItem {
/**
* Creates a new RichListScreenMenuItem object
*/
public RichListScreenMenuItem() {
super(new StringProvider("Rich List Screen"), 0x230030, 2);
this.setCommand(new Command(new CommandHandler() {
/**
* @see net.rim.device.api.command.CommandHandler#execute(ReadOnlyCommandMetadata,
* Object)
*/
public void execute(final ReadOnlyCommandMetadata metadata,
final Object context) {
pushScreen(new RichListScreen(getStringTokenizer()));
}
}));
}
}
/**
* A menu item to display a TreeScreen
*/
private class TreeScreenMenuItem extends MenuItem {
/**
* Creates a TreeScreenMenuItem object
*/
public TreeScreenMenuItem() {
super(new StringProvider("Tree Screen"), 0x230040, 3);
this.setCommand(new Command(new CommandHandler() {
/**
* @see net.rim.device.api.command.CommandHandler#execute(ReadOnlyCommandMetadata,
* Object)
*/
public void execute(final ReadOnlyCommandMetadata metadata,
final Object context) {
pushScreen(new TreeScreen(getStringTokenizer()));
}
}));
}
}
/**
* A menu item to display a TableAdapterScreen
*/
private class TableAdapterScreenMenuItem extends MenuItem {
/**
* Create a TableAdapterScreenMenuItem object
*/
public TableAdapterScreenMenuItem() {
super(new StringProvider("Table Adapter Screen"), 0x230050, 4);
this.setCommand(new Command(new CommandHandler() {
/**
* @see net.rim.device.api.command.CommandHandler#execute(ReadOnlyCommandMetadata,
* Object)
*/
public void execute(final ReadOnlyCommandMetadata metadata,
final Object context) {
pushScreen(new TableAdapterScreen(getStringTokenizer()));
}
}));
}
}
}
}