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CSE 413: Making Midlets

CSE 413: Making Midlets. Shane Cantrell Zach Crisman. Ant. ant –buildfile build403.xml clean ant –buildfile build403.xml build ant –buildfile build403.xml run. file. target. build403.xml. Requires antenna <property name="wtk.home" value="c:/wtk104"/>. MIDlet skeleton.

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CSE 413: Making Midlets

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  1. CSE 413: Making Midlets Shane Cantrell Zach Crisman

  2. Ant • ant –buildfile build403.xml clean • ant –buildfile build403.xml build • ant –buildfile build403.xml run file target

  3. build403.xml • Requires antenna • <property name="wtk.home" value="c:/wtk104"/>

  4. MIDlet skeleton import javax.microedition.midlet.*; public class MyMIDlet extends MIDlet { public MyMIDlet() {} // constructor public void startApp() {} // entering active state public void pauseApp() {} // entering paused state // entering destroyed state public void destroyApp(boolean unconditional) {} }

  5. MIDlet state transitions Paused pauseApp() startApp() Active destroyApp() destroyApp() Destroyed

  6. MIDlet jad file MIDlet-Name: Introductory Midlets MIDlet-1: Properties,,PView MIDlet-2: Accounts,,AccountViewer MIDlet-Vendor: Univ of Washington MIDlet-Version: 1.13 MIDlet-Jar-Size: 23919 MIDlet-Jar-URL: HW1.jar Image-1-name: Ant Image-1-location: /res/ant.gif

  7. Notes • doCommandAction(...)

  8. Useful Classes • Image • ImageItem • Form (eg. AccountPageScreen)

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