Blackberry JAVA DEVELOPMENT ENVIRONMENT - - CRYPTOGRAPHIC SMART CARD DRIVER - DEVELOPMENT GUIDE Průvodce řešením problémů stáhnout pdf (Strana 5)

Contents

1 Creating UIs .........................................................................................................................................................13

Elements of a BlackBerry device UI ..............................................................................................................13

Screens.......................................................................................................................................................13

UI components..........................................................................................................................................14

Create a screen ................................................................................................................................................15

Adding UI components to a screen...............................................................................................................15

Create UI components.............................................................................................................................15

Creating custom UI components................................................................................................................... 17

Create a custom field...............................................................................................................................18

Code sample: Creating custom buttons............................................................................................... 22

Create custom context menus...............................................................................................................26

Code sample: Creating a custom context menu................................................................................. 27

Create custom layout managers ...........................................................................................................29

Code sample: Creating a custom layout manager .............................................................................30

Create custom lists.................................................................................................................................. 33

Code sample: Creating a custom list....................................................................................................34

Adding menu items to BlackBerry applications.........................................................................................36

Create a menu item.................................................................................................................................36

Register a menu item..............................................................................................................................36

Code sample: Creating a new menu item in a BlackBerry application ........................................... 37

Arrange UI components.................................................................................................................................38

Define a layout manager........................................................................................................................40

Set field focus and navigation ......................................................................................................................40

Listen for field focus changes .......................................................................................................................40

Respond to UI events .....................................................................................................................................40

Listen for field property changes..................................................................................................................42

Manage foreground events ...........................................................................................................................43

Manage drawing areas...................................................................................................................................43

2 Using graphics and multimedia.......................................................................................................................45

Using images...................................................................................................................................................45

Use raw images........................................................................................................................................45

Use encoded images...............................................................................................................................46

1 2 3 4 5 6 7 8 9 10 ... 285 286

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Blackberry JAVA DEVELOPMENT ENVIRONMENT - - CRYPTOGRAPHIC SMART CARD DRIVER - DEVELOPMENT GUIDE Průvodce řešením problémů Strana 5

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