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BlackBerry Java Development Environment Development Guide
Display content in a BlackBerry Browser field
To display web content in a BlackBerry® Browser field, use the net.rim.blackberry.api.browser package.
Task Steps
Access a rendering session. 1. Invoke RenderingSession.getNewInstance().
2. Store the returned rendering session handle in a RenderingSession object.
RenderingSession _renderingSession = RenderingSession.getNewInstance();.
Define callback functionality for a
rendering session.
> Implement the RenderingApplication interface.
Retrieve a BlackBerry Browser field. 1. Invoke
RenderingSession.getBrowserContent(javax.microedition.io.HttpConnecti
on, net.rim.device.api.browser.field.RenderingApplication,
net.rim.device.api.browser.field.Event).
2. Store the returned object in a BrowserContent object. You render web content in the
BrowserContent
object.
BrowserContent browserContent =
_renderingSession.getBrowserContent(HttpConnection connection, this,
Event e);
Retrieve a field that renders the URL
content to your application for display.
>Invoke BrowserContent.getDisplayableContent(), storing the returned object in a
Field object.
Field field = browserContent.getDisplayableContent();
Display a BlackBerry Browser field. 1. To clear the current screen, invoke the MainScreen.deleteAll() method.
_mainScreen.deleteAll();
2. To add field data to the application screen, invoke MainScreen.add().
_mainScreen.add(field);
3. Create a non-main event thread to run BrowserContent.finishLoading()so that the UI
does not lock.
4. To render the new BlackBerry Browser content, invoke
BrowserContent.finishLoading().HTML files display a blank field until you invoke
BrowserContent.finishLoading()
. WML files and images might load before you invoke
this method.
Create a separate thread for rendering. > Create a non-main event thread that contains the instructions for retrieving and displaying the
BlackBerry Browser field.
class CreationThread extends Thread {
BrowserFieldHandlerApplication _callBackApplication;
BasicRenderingApplication _renderingApplication;
public CreationThread(BrowserFieldHandlerApplication
callBackApplication) {
_callBackApplication = callBackApplication;
}
public void run() {
_renderingApplication = new
BasicRenderingApplication(_callBackApplication);
BrowserField field =
_renderingApplication.getBrowserField("www.blackberry.com");
_callBackApplication.displayBrowserField(field);
}
}
- 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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