logging in or signing up midlet pjug 2004 01 27 Monica Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 264 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: January 31, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Writing Your First MIDlet Running JAVA on a Cell Phone : Writing Your First MIDlet Running JAVA on a Cell Phone Jon A. Batcheller January 27, 2004Overview: Overview The MID The CLDC & MIDP API Developing Code Emulation Deployment MID – Mobile Information Device: MID – Mobile Information Device Cell Phones, Palms, Blackberry…. Pocket Fisherman? JAVA = one program, multi-platforms “similar platforms” - WORAMIDP: MIDP Reduced JVM J2ME – Java 2 Mobile Edition CLDC – Connected Limited Device Configuration CDC – Connected Device Configuration – full JVM imp. MIDP – Mobile Information Device Profile Personal Java, Embedded Java, JavaPhone MIDP: MIDP MID MID Native (SYMBIAN OS) CLDC MIDP Native Apps JAVA MIDP Apps CLDC: CLDC 128K to 512K total memory Limited Power Limited Connectivity (9600bps) Reduced UI Cell Phones, Pagers, PDA’sMIDP: MIDP API and virtual machine to device domain java.lang java.util java.io javax.microedition.io javax.microedition.lcdui javax.microedition.rms javax.microedition.midletDevelopment Tools: Development Tools Sun Micro – J2ME Wireless Toolkit MIDP 1.0.3 Borland & Sun Forte Nokia – Standalone & JBuilder attachment Need environment to compile (library), verify, package, emulate, and finally deployWriting our first MIDlet: Writing our first MIDlet Application written for the MIDP Profile Must derive from javax.microedition.midlet.MIDlet Must implement startApp(), pauseApp() and destroyApp() Typically also implement a default constructor and a commandAction() from the CommandListener interfaceMIDlet Lifecycle: MIDlet LifecycleHelloMIDlet.java: HelloMIDlet.java Extends MIDlet Implements startApp, pauseApp, destroyApp Like an Applet, need something and somewhere to display Display .vs. Displayable Foreground .vs. Background Current Displayable HelloMIDlet.java: HelloMIDlet.java Extends MIDlet Implements startApp, pauseApp, destroyApp Like an Applet, need something and somewhere to display Display .vs. Displayable Foreground .vs. Background Current Displayable Display Object: Display Object Displayable current = Display.getDisplay(this).getCurrent(); Returns current Displayable Typically in startApp(), look for current Displayable, if null, create own and set it as current. HelloScreen: HelloScreen Displayable current = Display.getDisplay(this).getCurrent(); Returns current Displayable Typically in startApp(), look for current Displayable, if null, create own and set it as current. HelloMIDlet.java: HelloMIDlet.java Compile Note project library Package Emulate Deploy Test Package: Package JAD Versions – JAD, CLDC, MIDP Multiple MIDlets – Suites Other Classes Other Files JAR JAD – Java Application Descriptor: JAD – Java Application Descriptor Usually a link on a WAP site Info on the MIDlet Most Important – URL of the JAR Downloaded to MID then user queried to download JAR JAD – Java Application Descriptor: JAD – Java Application Descriptor MIDlet-Name: HelloWorld MIDlet-Version: 0.0.1 MIDlet-Vendor: Solidware, Inc MicroEdition-Profile: MIDP-1.0 MicroEdition-Configuration: CLDC-1.0 MIDlet-Jar-URL: HelloWorld.jar MIDlet-Jar-Size: 1592 MIDlet-1: HelloWorldApp, , HelloWorldApp Deploy: Deploy JAD first JAR on request Methods IR BlueTooth Email WEB – “Over the Air” http://www.javac.com/index.wml Emulate: Emulate Emulators – part of toolkits – Sun or Phone http://developers.sun.com/techtopics/mobility/midp/articles/emulators Debugging Environment Interesting Behaviors Test: Test Test Download jad Queries user if new or different version Download jar Execute Application Review Application details PropExample.java: PropExample.java Review Code Emulators Test javax.microedition.lcdui: javax.microedition.lcdui MIDP Low & High-level APIs Displayable Canvas Screen Alert Form List TextBoxjavax.microedition.lcdui: javax.microedition.lcdui Contents of Form and Alert Screens Item ChoiceGroup DateField Gauge ImageItem StringItem TextFieldUiDemo.java: UiDemo.java Look and Feel Bejeweled javax.microedition.io: javax.microedition.io CLDC – HTTP protocol! Connection object Content, Datagram, HTTP, Stream Normal Stream I/O Open with URL Get input/output streams Read/Write Close javax.microedition.io: javax.microedition.io HttpExample.java Log & Server2.java javax.microedition.rms: javax.microedition.rms Named record store Access to byte array records Add, Get, Store Stock Ticker Writing Your First MIDlet Running JAVA on a Cell Phone : Writing Your First MIDlet Running JAVA on a Cell Phone And the discussion continues at McMenamin’s Greenway Pub, 12272 SW Scholls Ferry Road North on 217 next exit, then West You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
midlet pjug 2004 01 27 Monica Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 264 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: January 31, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Writing Your First MIDlet Running JAVA on a Cell Phone : Writing Your First MIDlet Running JAVA on a Cell Phone Jon A. Batcheller January 27, 2004Overview: Overview The MID The CLDC & MIDP API Developing Code Emulation Deployment MID – Mobile Information Device: MID – Mobile Information Device Cell Phones, Palms, Blackberry…. Pocket Fisherman? JAVA = one program, multi-platforms “similar platforms” - WORAMIDP: MIDP Reduced JVM J2ME – Java 2 Mobile Edition CLDC – Connected Limited Device Configuration CDC – Connected Device Configuration – full JVM imp. MIDP – Mobile Information Device Profile Personal Java, Embedded Java, JavaPhone MIDP: MIDP MID MID Native (SYMBIAN OS) CLDC MIDP Native Apps JAVA MIDP Apps CLDC: CLDC 128K to 512K total memory Limited Power Limited Connectivity (9600bps) Reduced UI Cell Phones, Pagers, PDA’sMIDP: MIDP API and virtual machine to device domain java.lang java.util java.io javax.microedition.io javax.microedition.lcdui javax.microedition.rms javax.microedition.midletDevelopment Tools: Development Tools Sun Micro – J2ME Wireless Toolkit MIDP 1.0.3 Borland & Sun Forte Nokia – Standalone & JBuilder attachment Need environment to compile (library), verify, package, emulate, and finally deployWriting our first MIDlet: Writing our first MIDlet Application written for the MIDP Profile Must derive from javax.microedition.midlet.MIDlet Must implement startApp(), pauseApp() and destroyApp() Typically also implement a default constructor and a commandAction() from the CommandListener interfaceMIDlet Lifecycle: MIDlet LifecycleHelloMIDlet.java: HelloMIDlet.java Extends MIDlet Implements startApp, pauseApp, destroyApp Like an Applet, need something and somewhere to display Display .vs. Displayable Foreground .vs. Background Current Displayable HelloMIDlet.java: HelloMIDlet.java Extends MIDlet Implements startApp, pauseApp, destroyApp Like an Applet, need something and somewhere to display Display .vs. Displayable Foreground .vs. Background Current Displayable Display Object: Display Object Displayable current = Display.getDisplay(this).getCurrent(); Returns current Displayable Typically in startApp(), look for current Displayable, if null, create own and set it as current. HelloScreen: HelloScreen Displayable current = Display.getDisplay(this).getCurrent(); Returns current Displayable Typically in startApp(), look for current Displayable, if null, create own and set it as current. HelloMIDlet.java: HelloMIDlet.java Compile Note project library Package Emulate Deploy Test Package: Package JAD Versions – JAD, CLDC, MIDP Multiple MIDlets – Suites Other Classes Other Files JAR JAD – Java Application Descriptor: JAD – Java Application Descriptor Usually a link on a WAP site Info on the MIDlet Most Important – URL of the JAR Downloaded to MID then user queried to download JAR JAD – Java Application Descriptor: JAD – Java Application Descriptor MIDlet-Name: HelloWorld MIDlet-Version: 0.0.1 MIDlet-Vendor: Solidware, Inc MicroEdition-Profile: MIDP-1.0 MicroEdition-Configuration: CLDC-1.0 MIDlet-Jar-URL: HelloWorld.jar MIDlet-Jar-Size: 1592 MIDlet-1: HelloWorldApp, , HelloWorldApp Deploy: Deploy JAD first JAR on request Methods IR BlueTooth Email WEB – “Over the Air” http://www.javac.com/index.wml Emulate: Emulate Emulators – part of toolkits – Sun or Phone http://developers.sun.com/techtopics/mobility/midp/articles/emulators Debugging Environment Interesting Behaviors Test: Test Test Download jad Queries user if new or different version Download jar Execute Application Review Application details PropExample.java: PropExample.java Review Code Emulators Test javax.microedition.lcdui: javax.microedition.lcdui MIDP Low & High-level APIs Displayable Canvas Screen Alert Form List TextBoxjavax.microedition.lcdui: javax.microedition.lcdui Contents of Form and Alert Screens Item ChoiceGroup DateField Gauge ImageItem StringItem TextFieldUiDemo.java: UiDemo.java Look and Feel Bejeweled javax.microedition.io: javax.microedition.io CLDC – HTTP protocol! Connection object Content, Datagram, HTTP, Stream Normal Stream I/O Open with URL Get input/output streams Read/Write Close javax.microedition.io: javax.microedition.io HttpExample.java Log & Server2.java javax.microedition.rms: javax.microedition.rms Named record store Access to byte array records Add, Get, Store Stock Ticker Writing Your First MIDlet Running JAVA on a Cell Phone : Writing Your First MIDlet Running JAVA on a Cell Phone And the discussion continues at McMenamin’s Greenway Pub, 12272 SW Scholls Ferry Road North on 217 next exit, then West