Motorola C370, C550, C450 technical manual Vibe and Backlight API

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9 Vibe and Backlight

Vibe and Backlight API

The Vibe and Backlight API allows J2ME applications access to vibrator, backlight, and keypad control. This access gives a MIDlet the ability to turn on/off these features based on the application’s needs. The MIDlet will use the Vibe and Backlight API to enhance the activity being performed by the application. Examples of these enhancements are the following:

•When in a driving game application, the vibrator is turned on during a crash scenario.

•An alarm clock application will have access to turn the vibrator on and off.

•A stock ticker application turns the backlight on/off when a specified stock hits a target price.

In future releases of the Vibe and Backlight API, keypad and backlight control must function separately. Currently, these functions are dependant on the hardware implementation and which additional drivers are needed to control the keypad and lights separately from the display’s backlight.

Native constraints must be in place to protect the battery life of the product. A time-out feature will be created to limit the duration of the vibrator and backlight features. This time-out will protect against a corrupt MIDlet or unattended MIDlet. These native constraints will be flexible to the operator.

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Contents Technical Manual Table of Contents Lcdui JAD Attributes Audience IntroductionPurpose DisclaimerReferences Date Name Reason Revision HistoryDefinitions, Abbreviations, Acronyms Acronym DescriptionDocument Overview Introduction J2ME Introduction Java 2 Platform, Micro Edition J2MEMotorola J2ME Platform Resources AvailableFile & RMS Description DisplayNetworking Java VMIntroduction to Development Developing and Packaging J2ME ApplicationsGuide to Development in J2ME Page Downloading Applications OTA ProcedureInstallation Program and Data space notes Exiting Applications Java Application Installer/De-Installer JaidStarting Applications Downloading MIDlets Error ChecksLaunching Web Session for Http Download XML Screen Renderings BombMan is back, now on your Taichi series of handsets Taichi handset New Games Application Management MIDlet LifecycleMIDlet Suite Installation MIDlet Suite De-installation MIDlet Suite Updating DestroyAppMethod Caller PurposeStartApp or the pauseApp Using startApp Java System MIDlet Control of MIDlet State TransitionsPage Network API Network ConnectionsClass Descriptions IOException when it detects a time-out condition URL FormatImplementation Notes TCP SocketsUDP Sockets Network API Lcdui DescriptionLcdui Class Hierarchy Gaming API and SoundFunctional Description BackgroundMusic Methods Using BackgroundMusicBackgroundMusic Class Gaming API containing a sound APIGameScreen Class GameScreen FieldsGameScreen Methods Public int getKeyStatesInformation, disabling key events can improve performance Using GameScreen GameScreenImageUtil Methods ImageUtil ClassImageUtil Fields Using ImageUtil RgbDataPalleteImage Methods PalleteImage ClassPalleteImage Constructor Using PalleteImage Public void setTransparentIndexint index throwsUsing Static and Animated Tiles PlayField ClassPlayField Constructor Using SpritesDefining View Windows 2N+1 2N + PlayField Methods Public void addSpriteSprite s throwsPage Public boolean collidesWithAnyTileSprite s throws Using PlayField PlayFieldSprite Class Using SoundEffectSoundEffect Class SoundEffect MethodsSprite Constructor Animation FramesSprite Drawing Sprite Methods Page Public final void drawGraphics g throws Sprites Using SpriteFileFormatNotSupportedException FileFormatNotSupportedException Constructors Java Gaming Sound APIMax Midi Extension Support Java Gaming Sound APIVibe and Backlight Vibe and Backlight APIOverview Creating a MessageSending a Message PermissionsJAD Attributes JAD AttributesMandatory attributes for manifest files MIDlet-Name Code Examples Record Management SystemClass Description RecordStoreTips CaveatsPhonebook Access Phonebook Access APIPhonebook Access API Permissions Sample of code to create object of PhoneBookRecord classSimmemory Sample of code for calling of ‘getMaxEmailLength ’ method Sample of code for calling of ‘isPrimaryint speedNo’ method Sample of code for calling of ‘getNumberCategories’ method Sample of code for calling of ‘setCategoryView’ method Sample of code for calling of ‘getUsedRecords’ method Int index = ReceivedRecord.getRecord1 ITAP Intelligent Keypad Text Entry APIAppendix a Key Mapping Key Mapping for the C370, C450, and C550Center Select END Appendix B Memory Management Calculation Available MemoryOnline FAQ Appendix CAppendix D Spec Sheets C370, C450, and C550 Spec SheetsReferences Purchase Motorola Developer Information ToolsDocumentation Motorola Developer Information Tools Motorola, Inc

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