2
edits
Changes
UI Video
== BlackBerry Development Environment Fundamentals using Eclipse IDE ==
<u>'''This is a practical introduction to build BlackBerry applications.'''</u>
! Steps !! Actions
|-
| [[File:1bb.png|left|600px]] || The steps to install, configure and check your installation are defined at: [http://zenit.senecac.on.ca/wiki/index.php/Mobile/bb-feb11-install Install, Configuration, Check]section.
|-
|-
|-
| [[File:3bb.png|left|600px]] || The goals of the Project is to create an Application basic Java code thathas the capabilities to:
* run the application by adding it to the event dispatcher
* create a Screen and push it onto the Screen stack
|}
----------
=== Development Fundamentals ===
{| class="wikitable" border="0" cellpadding="6"
! Steps !! Actions
|-
| [[File:7bb.png|left|600px]] || [http://www.blackberry.com/developers/docs/6.0.0api/index.html?net/rim/device/api/system/Application.html Package net.rim.device.api.ui ]
Provides fundamental functionality for constructing the user interface of a RIM Device application.
The members of this package are all abstract classes or interfaces
They are not intended for direct instantiation.
You should rather use (or extend) the classes in '''''net.rim.device.api.ui.component''''' and '''''net.rim.device.api.ui.container'''''.
<source lang="java">
import net.rim.device.api.ui.UiApplication;
/**
* This class extends the UiApplication class, providing a graphical user
* interface.
*/
public class HelloWorldDemo extends UiApplication {
/**
</source>
|-
|-
| [[File:ui_basic_arch.png|left|300px]] || There are three main UI primitives:
* [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/Field.html Field]
* [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/Manager.html Manager]
* [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/Screen.html Screen]
Screen class is the base class for all screens. Each UiEngine presents an interface to the user by pushing screens onto its display stack,
and popping them off when interaction with the managed fields on that screen is finished.
Delegate manager
Each screen object has a delegate manager, the single Manager object directly controlled by the screen
to handle layout and scrolling for the entire screen.
|-
| [[File:8bb.png|left|600px]] || [http://www.blackberry.com/developers/docs/6.0.0api/index.html?net/rim/device/api/system/Application.html enterEventDispatcher]
The thread that calls this method (typically the main thread in the application)
becomes theevent-dispatching thread, which will execute all drawing and event-handling code.
Note: ''under normal circumstances this method does not return''.
<source lang="java">
public class HelloWorldDemo extends UiApplication {
/**
* Entry point for application
* @param args Command line arguments (not used)
*/
public static void main(String[] args) {
// Create a new instance of the application and make the currently
// running thread the application's event dispatch thread.
HelloWorldDemo theApp = new HelloWorldDemo();
theApp.enterEventDispatcher();
</source>
|-
| [[File:9bb.png|left|600px]] || [http://www.blackberry.com/developers/docs/6.0.0api/index.html?net/rim/device/api/system/Application.html Class MainScreen]
The MainScreen class defines the full screen providing features common to standard RIM device applications.
<source lang="java">
/**
* A class extending the MainScreen class, which provides default standard
* behavior for BlackBerry GUI applications.
*/
final class HelloWorldScreen extends MainScreen {
</source>
|-
| [[File:10bb.png|left|600px]] ||
Main screen objects could contain:
* a title section,
* a separator element,
* and a main scrollable section.
<source lang="java">
final class HelloWorldScreen extends MainScreen {
/**
* Creates a new HelloWorldScreen object
*/
HelloWorldScreen() {
// Set the displayed title of the screen
setTitle("Eclipse Course");
</source>
|}
----------
=== Basic UI Elements - Package ''net.rim.device.api.ui.component'' ===
{| class="wikitable" border="0" cellpadding="6"
! Class Name !! Description
|-
|+
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/ActiveAutoTextEditField.html ActiveAutoTextEditField] ||
Field that uses a supplied set of string patterns to pick out 'active' regions.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/ActiveFieldContext.html ActiveFieldContext] ||
An instance of this class is passed into factories that createActiveFieldCookie instances.
|-
|[http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/ActiveRichTextField.html ActiveRichTextField] ||
Field that uses a supplied set of string patterns to scan through a simple text string and pick out "active" regions.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/AutoCompleteField.html AutoCompleteField] ||
AutoCompleteField lets you create a text field that presents users with a changing list of words that are associated with the characters they have typed in the field.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/AutoTextEditField.html AutoTextEditField] ||
An editable text field designed to provide autotext support.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/BasicEditField.html BasicEditField] ||
An editable simple text field with no formatting.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/BitmapField.html BitmapField] ||
Displays a bitmap.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/ButtonField.html ButtonField] ||
Contains a button control.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/ButtonFieldFactory.html ButtonFieldFactory] ||
Assists in creation of ButtonField instances using information contained within Command instances.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/CheckboxField.html CheckboxField] ||
Contains a checkbox control.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/ChoiceField.html ChoiceField] ||
Base implementation of a choice field.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/DateField.html DateField] ||
Stores date and time values.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/Dialog.html Dialog] ||
Provides a dialog box with predefined configurations.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/EditField.html EditField] ||
An editable simple text field with no formatting.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/EmailAddressEditField.html EmailAddressEditField] ||
An editable text field designed specifically to handle internet email addresses.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/GaugeField.html GaugeField] ||
Displays a horizontal bar that you can use for numeric selection or as a progress indicator.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/KeywordFilterField.html KeywordFilterField] ||
Consists of a single keyword input field and a list of selectable elements.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/LabelField.html LabelField] ||
Contains a simple label.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/ListField.html ListField] ||
Contains rows of selectable list items.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/Menu.html Menu] ||
Provides a Menu.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/NullField.html NullField] ||
A field of no size.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/NumericChoiceField.html NumericChoiceField] ||
A choice field that supports choosing from a range of numeric values.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/ObjectChoiceField.html ObjectChoiceField] ||
Choice field that supports a list of object choices.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/ObjectListField.html ObjectListField] ||
List field to contain a list of objects.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/PasswordEditField.html PasswordEditField] ||
An editable text field designed specifically to handle password input.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/RadioButtonField.html RadioButtonField] ||
Field to provide a radio-button control.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/RadioButtonGroup.html RadioButtonGroup] ||
Groups a set of related radio button fields.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/RichTextField.html RichTextField] ||
Read-only field that supports richly formatted text.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/SeparatorField.html SeparatorField] ||
A field which draws a horizontal line across its width.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/SpinBoxField.html SpinBoxField] ||
A user interface component for selecting a single item from a list where the user can spin through the various choices.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/StandardTitleBar.html StandardTitleBar] ||
Provides a standard title bar component with a standard set of optional title bar components and indicators.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/Status.html Status] ||
Simple dialog to show ongoing status.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/TextField.html TextField] ||
A simple editable text field.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/TextSpinBoxField.html TextSpinBoxField] ||
A SpinBoxField that renders text.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/TitleBar.html TitleBar] ||
Provides an abstract TitleBar component.
|-
| [http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/TreeField.html TreeField] ||
A simple field to show a tree structure.
|}
----------
=== Procedure to add UI Elements to Application ===
{| class="wikitable" border="0" cellpadding="6"
! Steps !! Actions
|-
| [[File:12bb.png|left|600px]] || <source lang="java">
/**
* Creates a new HelloWorldScreen object
*/
HelloWorldScreen() {
// Set the displayed title of the screen
setTitle("Eclipse Course");
// Add a read only text field (RichTextField) to the screen. The
// RichTextField is focusable by default. Here we provide a style
// parameter to make the field non-focusable.
add(new RichTextField("Welcome to BlackBerry World!",
Field.NON_FOCUSABLE));
}
</source>
|-
|-
| [[File:13bb.png|left|600px]] || '''[http://www.blackberry.com/developers/docs/6.0.0api/net/rim/device/api/ui/component/Dialog.html The Dialog Class]'''
Provides a dialog box with predefined configurations.
To get a standard, predefined dialog use
* ''Dialog.alert(java.lang.String)''
** This method creates an alert dialog typically used to notify the user of an event or some important information. The dialog uses a exclamation mark bitmap.
* ''Dialog.ask(int)''
** This method creates a standard inquiry dialog. The dialog uses a question mark bitmap.Creates a standard inquiry dialog.
* ''Dialog.inform(java.lang.String)''
** Creates a notification dialog with the specified message. This method creates a notification dialog displaying the specified message. The dialog uses the "information" bitmap.
These pop up a predefined dialog and wait for user input. To get a more customized dialog, instantiate this class or extend it.
Pressing ESCAPE returns Dialog.CANCEL, but only if it was one of the choices specified in the values array.
|-
| [[File:14bb.png|left|600px]] || <source lang="java">
/**
* Displays a dialog box to the user with the text "Goodbye!" when the
* application is closed.
*
* @see net.rim.device.api.ui.Screen#close()
*/
public void close() {
// Display a farewell message before closing the application
Dialog.alert("Goodbye!");
super.close();
}
</source>
|-
| [[File:15bb.png|left|600px]] || <source lang="java">
public class HelloBlackBerry extends UiApplication {
public static void main( String[] args ) {
HelloBlackBerry theApp = new HelloBlackBerry();
theApp.enterEventDispatcher();
}
/**
* Creates a new HelloBlackBerry object
*/
public HelloBlackBerry() {
// Push a screen onto the UI stack for rendering.
pushScreen( new HelloBlackBerryScreen() );
}
</source>
|}
----------
Here is a tutorial for [http://supportforums.blackberry.com/t5/video/gallerypage/video-id/9lZHNsMToFt6sCzMPDlu68CN11DLP7Bg BlackBerry 6 User Interface APIs]
