/*
* HomeScreen.java
*
* © <your company here>, 2003-2005
* Confidential and proprietary.
*/
package myapp;
import net.rim.device.api.ui.*;
import net.rim.device.api.ui.component.*;
import net.rim.device.api.ui.container.*;
import java.util.*;
/**
*
*/
class HomeScreen extends MainScreen {
HomeScreen() {
// Set the window title
LabelField applicationTitle = new LabelField("Hello BlackBerry");
setTitle(applicationTitle);
// Add a label to show application status
_statusLabel = new LabelField( "Status: Started");
add( _statusLabel );
// Add an edit field for entering new names
_nameEditField = new EditField( "Name: ", "", 50,
EditField.USE_ALL_WIDTH );
add (_nameEditField );
// Add an ObjectListField for displaying a list of names
_nameListField = new ObjectListField();
add( _nameListField );
// Add a menu item
addMenuItem(_addToListMenuItem);
// Add sync menu item
addMenuItem(_syncMenuItem);
// Add reset menu item
addMenuItem(_resetMenuItem);
// Create database and connect
try{
_da = DataAccess.getDataAccess(false);
_statusLabel.setText("Status: Connected");
}
catch( Exception ex)
{
System.out.println("Exception: " + ex.toString() );
_statusLabel.setText("Exception: " + ex.toString() );
}
// Fill the ObjectListField
this.refreshNameList();
}
public void refreshNameList(){
try{
//Clear the list
_nameListField.setSize(0);
//Refill from the list of names
Vector nameVector = _da.getNameVector();
for( Enumeration e = nameVector.elements(); e.hasMoreElements(); ){
NameRow nr = ( NameRow )e.nextElement();
_nameListField.insert(0, nr);
}
} catch ( Exception ex){
System.out.println(ex.toString());
}
}
private void onAddToList(){
String name = _nameEditField.getText();
_da.insertName(name);
this.refreshNameList();
_nameEditField.setText("");
_statusLabel.setText(name + " added to list");
}
private void onSync(){
try{
if( _da.sync() ){
_statusLabel.setText("Synchronization succeeded");
} else {
_statusLabel.setText("Synchronization failed");
}
this.refreshNameList();
} catch ( Exception ex){
System.out.println( ex.toString() );
}
}
private void onReset(){
_da.complete();
try{
_da = DataAccess.getDataAccess(true);
_statusLabel.setText("Status: Connected");
this.refreshNameList();
}
catch( Exception ex)
{
System.out.println("Exception: " + ex.toString() );
_statusLabel.setText("Exception: " + ex.toString() );
}
}
private LabelField _statusLabel;
private DataAccess _da;
private EditField _nameEditField;
private ObjectListField _nameListField;
private MenuItem _addToListMenuItem = new MenuItem("Add", 1, 1){
public void run() {
onAddToList();
}
};
private MenuItem _syncMenuItem = new MenuItem("Sync", 2, 1){
public void run() {
onSync();
}
};
private MenuItem _resetMenuItem = new MenuItem("Reset", 3, 1){
public void run() {
onReset();
}
};
}
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