/*
* AppScreen.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.bluetoothdemo;
import net.rim.device.api.bluetooth.BluetoothSerialPort;
import net.rim.device.api.bluetooth.BluetoothSerialPortInfo;
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.ui.MenuItem;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.util.StringProvider;
/**
* This class is the initial loading screen for the Bluetooth Demo. It retrieves
* the serial port information for all of the currently paired devices and lists
* any possible connections which have a service name of "Hi there" (for
* devices) or "COM X" (for PCs) in the menu. The user may then select the
* device from the menu or choose to try to wait and listen for a connection
* from a paired device.
*
* Note: One of the paired devices must be listening for a connection before the
* other device may connect.
*/
public final class AppScreen extends MainScreen {
private BluetoothSerialPortInfo[] _portInfo;
/**
* Default constructor
*/
public AppScreen() {
setTitle("Bluetooth Sample");
// Determine if this BlackBerry model or simulator supports Bluetooth
if (BluetoothSerialPort.isSupported()) {
// Get the BluetoothSerialPortInfo. Retrieves serial port
// information for
// the currently paired devices.
_portInfo = BluetoothSerialPort.getSerialPortInfo();
final int numServices = _portInfo.length;
// Create a MenuItem for each Bluetooth device we can connect to.
for (int count = numServices - 1; count >= 0; --count) {
final String serviceName = _portInfo[count].getServiceName();
// A single device can provide multiple serial port connections
// (or services).
// Add a menu item only to the service that corresponds to the
// "Hi there" connection,
// or the "COM X" connection (if we are pairing with a PC).
if (serviceName.equals("Hi there")
|| serviceName.equals("COM X")) {
final DeviceMenuItem deviceMenuItem =
new DeviceMenuItem("Connect to: "
+ _portInfo[count].getDeviceName(),
_portInfo[count]);
addMenuItem(deviceMenuItem);
}
}
final MenuItem listenItem =
new MenuItem(new StringProvider("Listen for connections"),
0x230010, 0);
listenItem.setCommand(new Command(new CommandHandler() {
/**
* Launches a connection waiting screen.
*
* @see net.rim.device.api.command.CommandHandler#execute(ReadOnlyCommandMetadata,
* Object)
*/
public void execute(final ReadOnlyCommandMetadata metadata,
final Object context) {
UiApplication.getUiApplication().pushScreen(
new SPPScreen(null));
close(); // Close the current screen
}
}));
addMenuItem(listenItem);
} else {
add(new LabelField("Bluetooth is not supported on this device."));
}
}
/**
* This is a custom menu item which invokes a connection to a paired device
* when selected.
*/
private final class DeviceMenuItem extends MenuItem {
private final BluetoothSerialPortInfo _info;
/**
* Constructs the device menu item to allow the user to connect to a
* paired device.
*
* @param text
* The label of the menu item to display
* @param info
* The Bluetooth Serial Port information of the paired device
* this menu item will invoke a connection to
*/
DeviceMenuItem(final String text, final BluetoothSerialPortInfo info) {
super(new StringProvider(text), 0x230020, 20);
_info = info;
this.setCommand(new Command(new CommandHandler() {
/**
* Invokes the connection to the device associated with the
* Bluetooth Serial Port information stored in this object.
*
* @see net.rim.device.api.command.CommandHandler#execute(ReadOnlyCommandMetadata,
* Object)
*/
public void execute(final ReadOnlyCommandMetadata metadata,
final Object context) {
UiApplication.getUiApplication().pushScreen(
new SPPScreen(_info));
close(); // Close the current screen
}
}));
}
}
}