Blackberry JAVA DEVELOPMENT ENVIRONMENT - - CRYPTOGRAPHIC SMART CARD DRIVER - DEVELOPMENT GUIDE Guide de dépannage Page 36
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BlackBerry Java Development Environment Development Guide
Adding menu items to BlackBerry applications
The Application Menu Item API, in the net.rim.blackberry.api.menuitem package, lets you add menu items
to BlackBerry® applications. The
ApplicationMenuItemRepository class lets you add or remove menu items
from BlackBerry applications.
Create a menu item
Register a menu item
Task Steps
Define a menu item. > Extend the abstract ApplicationMenuItem class.
public class SampleMenuItem extends ApplicationMenuItem { ... }
Specify the position of the menu
item in the menu.
A higher number means that the menu item appears lower in the menu.
>Invoke ApplicationMenuItem().
SampleMenuItem() {
super(20);
}
Specify the menu item text. > Implement toString().
public String toString() {
return "Open the Contacts Demo application";
}
Specify the behavior of the menu
item.
> Implement run().
public Object run(Object context) {
Contact c = (Contact)context; // An error occurs if this does not work.
if ( c ! null ) {
new ContactsDemo().enterEventDispatcher();
} else {
throw new IllegalStateException( "Context is null, expected a Contact
instance");
}
Dialog.alert("Viewing a message in the messaging view");
return null;
}
Task Steps
Retrieve the application menu item
repository.
>Invoke ApplicationMenuItemRepository.getInstance().
ApplicationMenuItemRepository repository =
ApplicationMenuItemRepository.getInstance();
Create your application menu item. > Invoke the constructor.
TestApplicationMenuItem tami = new TestApplicationMenuItem();
Add the menu item to the repository. >Invoke addMenuItem().
repository.addMenuItem(ApplicationMenuItemRepository.MENUITEM_ADDRESSC
ARD_VIEW, tami);
- BlackBerry Java Development 1
- Environment 1
- Contents 5
- Creating UIs 13
- UI components 14
- Create a screen 15
- Creating custom UI components 17
- Create a custom field 18
- 1: Creating UIs 19
- Create custom context menus 26
- Create custom layout managers 29
- Example: DiagonalManager.java 30
- return index; 32
- Create custom lists 33
- Create a menu item 36
- Register a menu item 36
- Example: DemoAppMenuItem.java 37
- Arrange UI components 38
- Respond to UI events 40
- Manage foreground events 43
- Manage drawing areas 43
- Using graphics and multimedia 45
- Use encoded images 46
- Example: ImageDemo.java 47
- Drawing and rendering images 48
- Example: DrawDemo.java 50
- Using audio 51
- Example: Sequence of tones 52
- Play media 54
- Using rich media 55
- Example: MediaSample.java 56
- Listen for rich media events 57
- Example: MediaSample2.java 60
- Storing data 65
- Manage persistent data 66
- 3: Storing data 67
- Example: UserInfo.java 67
- Manage custom objects 69
- Example: Restaurants.java 71
- Use the MIDP record store 75
- Managing data 77
- Backing up and restoring data 78
- 4: Managing data 79
- Access a SyncCollection 80
- Using SyncObjects 82
- Example: RestaurantsSync.java 89
- Using smart cards 97
- 5: Using smart cards 101
- Managing memory 115
- Use the LMM 116
- Free persistent objects 116
- Creating connections 117
- Use HTTP connections 118
- Example: HTTPFetch.java 119
- 7: Creating connections 119
- Use HTTP authentication 122
- Use HTTPS connections 125
- Use socket connections 125
- Datagram connections 126
- Using port connections 128
- Creating notifications 135
- Add a new event source 136
- Code sample: 137
- Triggering events 139
- Respond to deferred events 140
- Cancel events 141
- 8: Creating notifications 143
- Example: ConsequenceDemo.java 143
- Managing applications 147
- Managing code modules 149
- Retrieve module information 150
- Create code modules 150
- Runtime store 151
- Share runtime objects 151
- Create new messages 153
- Work with a message 155
- Send a message 156
- Reply to a message 157
- Work with folders 158
- Working with attachments 160
- Using PIM applications 163
- Use the calendar 164
- 11: Using PIM applications 165
- ContactsDemo.java 167
- Using the address book 170
- Example: ContactsDemo.java 175
- Using tasks 178
- Use tasks 179
- Using the phone application 185
- BlackBerry DTMF tones 186
- Listen for phone events 187
- Access and use call logs 187
- Example: PhoneLogsDemo.java 188
- Using the BlackBerry Browser 191
- Using location information 199
- Location document tags 200
- Location document structure 200
- Creating push applications 215
- Types of push requests 216
- Example: HTTPPushDemo.java 218
- Create a RIM push request 225
- Create a PAP push request 226
- BlackBerry device 227
- Localizing applications 235
- Add localization support 236
- 16: Localizing applications 237
- Example: CountryInfo.java 237
- Testing applications 245
- Debugging applications 246
- 17: Testing applications 247
- Manage a debugging session 248
- Locate a memory leak 250
- Display format 251
- View local variables 252
- View static data 252
- View threads 253
- View the call stack 254
- View event logs 254
- View classes 255
- Generate profile data 256
- Analyze code coverage 257
- Run the Coverage tool 258
- View source code 258
- Approve HTTP connections 258
- Load and remove applications 260
- View application information 261
- Preverify applications 263
- Request code signatures 265
- View signature status 266
- Distribute applications 267
- Software 269
- Specify optional components 270
- WAP Push DTDs 276
- Appendix: .alx files 277
- Appendix: .alx files 279
- Set .cod file dependencies 281
- Acronym list 283
- Published in Canada 286
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