/*
* GridFieldScreen.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.wireframelayoutdemo;
import net.rim.device.api.system.Characters;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.Screen;
import net.rim.device.api.ui.component.BasicEditField;
import net.rim.device.api.ui.component.ButtonField;
import net.rim.device.api.ui.component.SeparatorField;
import net.rim.device.api.ui.container.GridFieldManager;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.ui.container.VerticalFieldManager;
/**
* A screen which displays number of buttons in a GridFieldManager in a keypad
* configuration.
*/
public class GridFieldScreen extends MainScreen {
private final ButtonField _buttonFieldOne;
private final ButtonField _buttonFieldTwo;
private final ButtonField _buttonFieldThree;
private final ButtonField _buttonFieldFour;
private final ButtonField _buttonFieldFive;
private final ButtonField _buttonFieldSix;
private final ButtonField _buttonFieldSeven;
private final ButtonField _buttonFieldEight;
private final ButtonField _buttonFieldNine;
private final ButtonField _buttonFieldStar;
private final ButtonField _buttonFieldZero;
private final ButtonField _buttonFieldPound;
private final BasicEditField _phoneNumberField;
/**
* Creates a new GridFieldScreen object
*/
public GridFieldScreen() {
super(NO_VERTICAL_SCROLL);
setTitle("Grid Field Demo");
// Define rows and columns
final int rows = 4;
final int cols = 3;
// Instantiate a GridFieldManager with 4 rows and 3 columns
final GridFieldManager gridFieldManager =
new GridFieldManager(rows, cols, Field.FIELD_HCENTER);
// Add a field to the screen to display a phone number
_phoneNumberField =
new BasicEditField("Phone number: ", "", 15,
Field.NON_FOCUSABLE);
add(_phoneNumberField);
add(new SeparatorField());
// Instantiate button fields
_buttonFieldOne =
new ButtonField("1", ButtonField.NEVER_DIRTY
| ButtonField.CONSUME_CLICK);
_buttonFieldTwo =
new ButtonField("2", ButtonField.NEVER_DIRTY
| ButtonField.CONSUME_CLICK);
_buttonFieldThree =
new ButtonField("3", ButtonField.NEVER_DIRTY
| ButtonField.CONSUME_CLICK);
_buttonFieldFour =
new ButtonField("4", ButtonField.NEVER_DIRTY
| ButtonField.CONSUME_CLICK);
_buttonFieldFive =
new ButtonField("5", ButtonField.NEVER_DIRTY
| ButtonField.CONSUME_CLICK);
_buttonFieldSix =
new ButtonField("6", ButtonField.NEVER_DIRTY
| ButtonField.CONSUME_CLICK);
_buttonFieldSeven =
new ButtonField("7", ButtonField.NEVER_DIRTY
| ButtonField.CONSUME_CLICK);
_buttonFieldEight =
new ButtonField("8", ButtonField.NEVER_DIRTY
| ButtonField.CONSUME_CLICK);
_buttonFieldNine =
new ButtonField("9", ButtonField.NEVER_DIRTY
| ButtonField.CONSUME_CLICK);
_buttonFieldStar =
new ButtonField("*", ButtonField.NEVER_DIRTY
| ButtonField.CONSUME_CLICK);
_buttonFieldZero =
new ButtonField("0", ButtonField.NEVER_DIRTY
| ButtonField.CONSUME_CLICK);
_buttonFieldPound =
new ButtonField("#", ButtonField.NEVER_DIRTY
| ButtonField.CONSUME_CLICK);
// Add button fields to the GridFieldManager
gridFieldManager.add(_buttonFieldOne);
gridFieldManager.add(_buttonFieldTwo);
gridFieldManager.add(_buttonFieldThree);
gridFieldManager.add(_buttonFieldFour);
gridFieldManager.add(_buttonFieldFive);
gridFieldManager.add(_buttonFieldSix);
gridFieldManager.add(_buttonFieldSeven);
gridFieldManager.add(_buttonFieldEight);
gridFieldManager.add(_buttonFieldNine);
gridFieldManager.add(_buttonFieldStar);
gridFieldManager.add(_buttonFieldZero);
gridFieldManager.add(_buttonFieldPound);
// Add the GridFieldManager to a VerticalFieldManager
final VerticalFieldManager vfm =
new VerticalFieldManager(USE_ALL_WIDTH);
vfm.add(gridFieldManager);
// Add the HorizontalFieldManager to the screen
add(vfm);
}
/**
* @see Screen#keyChar(char, int, int)
*/
protected boolean keyChar(final char key, final int status, final int time) {
final int textLength = _phoneNumberField.getText().length();
if ((key == Characters.BACKSPACE || key == Characters.ESCAPE)
&& textLength > 0) {
final String oldText = _phoneNumberField.getText();
final String newText = oldText.substring(0, textLength - 1);
_phoneNumberField.setText(newText);
return true;
}
return super.keyChar(key, status, time);
}
/**
* @see Screen#navigationClick(int, int)
*/
protected boolean navigationClick(final int status, final int time) {
doUpdate();
return true;
}
/**
* Appends digit to the phone number field text corresponding to the
* selected keypad button.
*/
void doUpdate() {
if (_buttonFieldOne.isFocus()) {
_phoneNumberField.setText(_phoneNumberField.getText() + "1");
} else if (_buttonFieldTwo.isFocus()) {
_phoneNumberField.setText(_phoneNumberField.getText() + "2");
} else if (_buttonFieldThree.isFocus()) {
_phoneNumberField.setText(_phoneNumberField.getText() + "3");
} else if (_buttonFieldFour.isFocus()) {
_phoneNumberField.setText(_phoneNumberField.getText() + "4");
} else if (_buttonFieldFive.isFocus()) {
_phoneNumberField.setText(_phoneNumberField.getText() + "5");
} else if (_buttonFieldSix.isFocus()) {
_phoneNumberField.setText(_phoneNumberField.getText() + "6");
} else if (_buttonFieldSeven.isFocus()) {
_phoneNumberField.setText(_phoneNumberField.getText() + "7");
} else if (_buttonFieldEight.isFocus()) {
_phoneNumberField.setText(_phoneNumberField.getText() + "8");
} else if (_buttonFieldNine.isFocus()) {
_phoneNumberField.setText(_phoneNumberField.getText() + "9");
} else if (_buttonFieldStar.isFocus()) {
_phoneNumberField.setText(_phoneNumberField.getText() + "*");
} else if (_buttonFieldZero.isFocus()) {
_phoneNumberField.setText(_phoneNumberField.getText() + "0");
} else if (_buttonFieldPound.isFocus()) {
_phoneNumberField.setText(_phoneNumberField.getText() + "#");
}
}
}