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Sample Cordova Javascript/Android Plugin not working

  1. MyEclipse IDE
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  2. General Development
Viewing 3 posts - 1 through 3 (of 3 total)
  • Author
    Posts
  • August 30, 2012 at 1:12 am #329666 Reply

    ess_stegra
    Participant

    I am trying to reproduce a very simple example from Apache Cordova’s Plugin Development Guide. The sample HTML JavaScript does not seem to be executing beyond the call to the Android Java Plug in. Here is the Java Code that deploys to the Android Emulator successfully and opens index.html:
    MainActivity.java

    
package com.essentialsoftware.testbump;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.support.v4.app.NavUtils;
import org.apache.cordova.*;

public class MainActivity extends DroidGap {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        super.loadUrl("file:///android_asset/www/index.html");
    }


    
}

    Here is the java plugin:
    Echo.java

    
package com.essentialsoftware.testbump;

import org.apache.cordova.api.Plugin;
import org.apache.cordova.api.PluginResult;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

/**
 * This class echoes a string called from JavaScript.
 */
public class Echo extends Plugin {

    /**
     * Executes the request and returns PluginResult.
     *
     * @param action        The action to execute.
     * @param args          JSONArry of arguments for the plugin.
     * @param callbackId    The callback id used when calling back into JavaScript.
     * @return              A PluginResult object with a status and message.
     */
    public PluginResult execute(String action, JSONArray args, String callbackId) {
        try {
            if (action.equals("echo")) {
                String echo = args.getString(0); 
                if (echo != null && echo.length() > 0) { 
                    return new PluginResult(PluginResult.Status.OK, echo);
                } else {
                    return new PluginResult(PluginResult.Status.ERROR);
                }
            } else {
                return new PluginResult(PluginResult.Status.INVALID_ACTION);
            }
        } catch (JSONException e) {
            return new PluginResult(PluginResult.Status.JSON_EXCEPTION);
        }
    }
}

    Here is the web page that invokes Echo:
    index.html 

    
<!DOCTYPE HTML>
<html>
<head>
<title>Cordova</title>
<script src="cordova-2.0.0.js"></script>
</head>
<body>
<h1 id="demo">Hello World</h1>
<script type="text/javascript">
document.getElementById("demo").innerHTML="Before function declaration";

window.echo = function(str, callback) {
    cordova.exec(callback, function(err) {
        callback('Nothing to echo.');
    }, "Echo", "echo", [str]);
};
document.getElementById("demo").innerHTML="After function declaration";

window.echo("echome", function(echoValue) {
    alert(echoValue == "echome"); // should alert true.
});
document.getElementById("demo").innerHTML="After function invocation";

alert("hello" == "Goodbye");
document.getElementById("demo").innerHTML="Test2";
</script>

</body>
</html>

    When index.html opens in the android emulator it displays
    After function declaration

    If I am correct, this means the JavaScript is erroring out in 

    
window.echo("echome", function(echoValue) {
    alert(echoValue == "echome"); // should alert true.
});

    Any advice as to what I am doing wrong? Any tips for debugging the JavaScript or my Andriod Java Code?
    Here is my installation summary and my error log.
    Installation Summary:

    *** Date:
    Thursday, August 30, 2012 12:02:41 AM MDT

    *** System properties:
    OS=WindowsVista
    OS version=6.1.0
    OS arch=x86
    Profile arch=x86
    Window system=win32
    Java version=1.6.0_13
    Workspace=file:/C:/Users/sgray/Documents/Workspaces/
    VM Args=-Xmx512m
    -XX:MaxPermSize=256m
    -XX:ReservedCodeCacheSize=64m
    -Dosgi.nls.warnings=ignore
    -Djava.class.path=C:\Users\sgray\AppData\Local\MYECLI~1\MYECLI~1\../Common/plugins/ORB7B5~1.JAR

    *** Subscription information
    Product Id: E3MP (MyEclipse Professional Subscription)
    License version: 3.0
    Full Maintenance Included
    Subscription expiration date (YYYYMMDD): 20130715
    Number of users: 1

    *** Eclipse details:
    MyEclipse Enterprise Workbench

    Version: 10.6
    Build id: 10.6-20120727

    Blueprint: MyEclipse 10

    com.genuitec.myeclipse.database – 10.6.0.me201207261914
    com.genuitec.myeclipse.desktop – 10.6.0.me201207261914
    com.genuitec.myeclipse.editor – 10.6.0.me201207261914
    com.genuitec.myeclipse.enterprise.workbench – 10.6.0.me201207261914
    com.genuitec.myeclipse.geronimo – 10.6.0.me201207261914
    com.genuitec.myeclipse.glassfish – 10.6.0.me201207261914
    com.genuitec.myeclipse.icefaces.feature – 10.6.0.me201207261914
    com.genuitec.myeclipse.iedebugger – 10.6.0.me201207261914
    com.genuitec.myeclipse.imageeditor – 10.6.0.me201207261914
    com.genuitec.myeclipse.jboss – 10.6.0.me201207261914
    com.genuitec.myeclipse.jetty – 10.6.0.me201207261914
    com.genuitec.myeclipse.jonas – 10.6.0.me201207261914
    com.genuitec.myeclipse.jrun – 10.6.0.me201207261914
    com.genuitec.myeclipse.jsf – 10.6.0.me201207261914
    com.genuitec.myeclipse.matisse – 10.6.0.me201207261914
    com.genuitec.myeclipse.maven – 10.6.0.me201207261914
    com.genuitec.myeclipse.oracle – 10.6.0.me201207261914
    com.genuitec.myeclipse.orion – 10.6.0.me201207261914
    com.genuitec.myeclipse.persistence – 10.6.0.me201207261914
    com.genuitec.myeclipse.pulse – 10.6.0.me201207261914
    com.genuitec.myeclipse.reports – 10.6.0.me201207261914
    com.genuitec.myeclipse.resin – 10.6.0.me201207261914
    com.genuitec.myeclipse.struts – 10.6.0.me201207261914
    com.genuitec.myeclipse.sun – 10.6.0.me201207261914
    com.genuitec.myeclipse.tomcat – 10.6.0.me201207261914
    com.genuitec.myeclipse.uml2 – 10.6.0.me201207261914
    com.genuitec.myeclipse.visualvm – 10.6.0.me201207261914
    com.genuitec.myeclipse.visualvm.server – 10.6.0.me201207261914
    com.genuitec.myeclipse.weblogic – 10.6.0.me201207261914
    com.genuitec.myeclipse.websphere – 10.6.0.me201207261914
    com.genuitec.myeclipse.ws – 10.6.0.me201207261914
    org.eclipse.birt – 2.6.1.me201207261914
    org.eclipse.datatools.connectivity.feature – 1.9.0.me201207261914
    org.eclipse.datatools.enablement.feature – 1.9.0.me201207261914
    org.eclipse.datatools.modelbase.feature – 1.9.0.v201106031100-77078CcNBHCBYKYEbNV
    org.eclipse.datatools.sqldevtools.feature – 1.9.0.me201207261914
    org.eclipse.emf – 2.7.0.v20110606-0949
    org.eclipse.gef – 3.7.0.v20110425-2050-777D-81B2Bz0685C3A6E34272
    org.eclipse.graphiti.feature – 0.8.0.v20110607-1252
    org.eclipse.jpt.jpa.feature – 3.0.0.me201207261914
    org.eclipse.jpt.jpadiagrameditor.feature – 1.0.0.me201207261914
    org.eclipse.jst.common.fproj.enablement.jdt – 3.3.0.me201207261914
    org.eclipse.jst.enterprise_ui.feature – 3.3.0.me201207261914
    org.eclipse.jst.server_adapters.ext.feature – 3.3.0.me201207261914
    org.eclipse.jst.server_adapters.feature – 3.2.100.me201207261914
    org.eclipse.jst.server_ui.feature – 3.3.0.me201207261914
    org.eclipse.jst.ws.axis2tools.feature – 1.1.200.me201207261914
    org.eclipse.m2e.feature – 1.0.0.me201207261914
    org.eclipse.sapphire.platform – 0.3.0.201106221325
    org.eclipse.wst.common.fproj – 3.3.0.me201207261914
    org.eclipse.wst.server_adapters.feature – 3.2.100.me201207261914
    org.eclipse.xsd – 2.7.0.v20110606-0949
    org.springframework.ide.eclipse.feature – 2.9.1.me201207261914

    com.android.ide.eclipse.adt – 20.0.3.v201208082019-427395
    com.android.ide.eclipse.ddms – 20.0.3.v201208082019-427395
    com.android.ide.eclipse.hierarchyviewer – 20.0.3.v201208082019-427395
    com.android.ide.eclipse.traceview – 20.0.3.v201208082019-427395
    fr.obeo.acceleo.bridge.feature – 2.6.0.200906261742
    org.eclipse.cvs – 1.3.100.v20110520-0800-7B78FHl9VF7BD7KBM4GP9C
    org.eclipse.draw2d – 3.7.0.v20110425-2050-46-7w3122153603161
    org.eclipse.equinox.p2.core.feature – 1.0.1.v20110906-1605-8290FZ9FVKHVRKtmx3fpNuo02129
    org.eclipse.equinox.p2.extras.feature – 1.0.1.v20110906-1605-7A4FD4DiVOMap8cHSc6vPuny4gqO
    org.eclipse.equinox.p2.rcp.feature – 1.0.1.v20110906-1605-782EqBqNKGVkiV-PUsgz-uny4gqO
    org.eclipse.equinox.p2.user.ui – 2.1.2.R37x_v20110815-1155-6-Bk8pYWZz0qUTX5I15GZWwbXkrl
    org.eclipse.help – 1.3.0.v20110530-0844-7i7uFFmFFl8nvqbDpEqTvx
    org.eclipse.jdt – 3.7.2.v20120120-1414-7z8gFcuFMP7BW5XTz0jLTnz0l9B1
    org.eclipse.jsf.feature – 3.3.0.me201207261914
    org.eclipse.ocl – 3.1.0.v20110606-1427
    org.eclipse.pde – 3.7.2.v20120120-1420-7b7rFUOFEx2Xnqafnpz0E–0
    org.eclipse.platform – 3.7.2.v20120207-1839-9gF7UHPDFxGjd-PqDr2jX_4yKaumkoHTz04_q-q
    org.eclipse.rcp – 3.7.2.v20120120-1424-9DB5FmnFq5JCf1UA38R-kz0S0272

    Eclipse startup command=-os
    win32
    -ws
    win32
    -arch
    x86
    -showsplash
    -launcher
    C:\Users\sgray\AppData\Local\MyEclipse\MyEclipse 10\myeclipse.exe
    -name
    Myeclipse
    –launcher.library
    C:\Users\sgray\AppData\Local\MyEclipse\MyEclipse 10\../Common/plugins/org.eclipse.equinox.launcher.i18n.win32.win32.x86_4.2.0.v201201111650\eclipse_4201.dll
    -startup
    C:\Users\sgray\AppData\Local\MyEclipse\MyEclipse 10\../Common/plugins/org.eclipse.equinox.launcher_1.2.0.v20110502.jar
    -install
    C:\Users\sgray\AppData\Local\MyEclipse\MyEclipse 10
    -configuration
    C:\Users\sgray\AppData\Local\MyEclipse\MyEclipse 10\configuration
    -vm
    C:\Users\sgray\AppData\Local\MyEclipse\Common\binary\com.sun.java.jdk.win32.x86_1.6.0.013\jre\bin\client\jvm.dll

    Error Log:
    !SESSION 2012-06-06 01:17:11.766 ———————————————–
    eclipse.buildId=unknown
    java.version=1.6.0_13
    java.vendor=Sun Microsystems Inc.
    BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
    Command-line arguments: -os win32 -ws win32 -arch x86

    !ENTRY com.genuitec.eclipse.wizards 1 0 2012-06-06 01:18:04.208
    !MESSAGE Installed snippet library: C:\Users\sgray.ESSENTIALSOFTWA\AppData\Local\MyEclipse\MyEclipse 10\configuration\org.eclipse.osgi\bundles8<!– [\.cp\snippets\html\css_snippets.xml

    !ENTRY com.genuitec.eclipse.wizards 1 0 2012-06-06 01:18:04.427
    !MESSAGE Installed snippet library: C:\Users\sgray.ESSENTIALSOFTWA\AppData\Local\MyEclipse\MyEclipse 10\configuration\org.eclipse.osgi\bundles8<!– [\.cp\snippets\html\forms_lists_snippets.xml

    !ENTRY com.genuitec.eclipse.wizards 1 0 2012-06-06 01:18:04.505
    !MESSAGE Installed snippet library: C:\Users\sgray.ESSENTIALSOFTWA\AppData\Local\MyEclipse\MyEclipse 10\configuration\org.eclipse.osgi\bundles8<!– [\.cp\snippets\html\htmlform_snippets.xml

    !ENTRY com.genuitec.eclipse.wizards 1 0 2012-06-06 01:18:04.598
    !MESSAGE Installed snippet library: C:\Users\sgray.ESSENTIALSOFTWA\AppData\Local\MyEclipse\MyEclipse 10\configuration\org.eclipse.osgi\bundles8<!– [\.cp\snippets\html\html_snippets.xml

    !ENTRY com.genuitec.eclipse.wizards 1 0 2012-06-06 01:18:04.661
    !MESSAGE Installed snippet library: C:\Users\sgray.ESSENTIALSOFTWA\AppData\Local\MyEclipse\MyEclipse 10\configuration\org.eclipse.osgi\bundles8<!– [\.cp\snippets\html\javascript_snippets.xml

    !ENTRY com.genuitec.eclipse.wizards 1 0 2012-06-06 01:18:04.723
    !MESSAGE Installed snippet library: C:\Users\sgray.ESSENTIALSOFTWA\AppData\Local\MyEclipse\MyEclipse 10\configuration\org.eclipse.osgi\bundles8<!– [\.cp\snippets\jsp\jsf_f_snippets.xml

    !ENTRY com.genuitec.eclipse.wizards 1 0 2012-06-06 01:18:05.052
    !MESSAGE Installed snippet library: C:\Users\sgray.ESSENTIALSOFTWA\AppData\Local\MyEclipse\MyEclipse 10\configuration\org.eclipse.osgi\bundles8<!– [\.cp\snippets\jsp\jsf_h_snippets.xml

    !ENTRY com.genuitec.eclipse.wizards 1 0 2012-06-06 01:18:05.114
    !MESSAGE Installed snippet library: C:\Users\sgray.ESSENTIALSOFTWA\AppData\Local\MyEclipse\MyEclipse 10\configuration\org.eclipse.osgi\bundles8<!– [\.cp\snippets\jsp\struts_bean_snippets.xml

    !ENTRY com.genuitec.eclipse.wizards 1 0 2012-06-06 01:18:05.208
    !MESSAGE Installed snippet library: C:\Users\sgray.ESSENTIALSOFTWA\AppData\Local\MyEclipse\MyEclipse 10\configuration\org.eclipse.osgi\bundles8<!– [\.cp\snippets\jsp\struts_html_snippets.xml

    !ENTRY com.genuitec.eclipse.wizards 1 0 2012-06-06 01:18:05.270
    !MESSAGE Installed snippet library: C:\Users\sgray.ESSENTIALSOFTWA\AppData\Local\MyEclipse\MyEclipse 10\configuration\org.eclipse.osgi\bundles8<!– [\.cp\snippets\jsp\struts_logic_snippets.xml

    !ENTRY com.genuitec.eclipse.wizards 1 0 2012-06-06 01:18:05.364
    !MESSAGE Installed snippet library: C:\Users\sgray.ESSENTIALSOFTWA\AppData\Local\MyEclipse\MyEclipse 10\configuration\org.eclipse.osgi\bundles8<!– [\.cp\snippets\jsp\struts_tiles_snippets.xml

    !ENTRY org.eclipse.osgi 2 0 2012-06-06 01:19:16.099
    !MESSAGE While loading class “org.eclipse.wst.jsdt.internal.core.JavaModelManager$16”, thread “Thread[Worker-8,5,main]” timed out waiting (5000ms) for thread “Thread[main,6,main]” to finish starting bundle “org.eclipse.wst.jsdt.core_1.1.100.me201203060843 [961]”. To avoid deadlock, thread “Thread[Worker-8,5,main]” is proceeding but “org.eclipse.wst.jsdt.internal.core.JavaModelManager$16” may not be fully initialized.
    !STACK 0
    org.osgi.framework.BundleException: State change in progress for bundle “reference:file:/C:/Users/sgray.ESSENTIALSOFTWA/AppData/Local/MyEclipse/Common/plugins/org.eclipse.wst.jsdt.core_1.1.100.me201203060843.jar” by thread “main”.
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.beginStateChange(AbstractBundle.java:1087)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:297)
    at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:440)
    at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:268)
    at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
    at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:463)
    at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
    at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:400)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:476)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)
    at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
    at org.eclipse.wst.jsdt.internal.core.JavaModelManager$15.run(JavaModelManager.java:4182)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
    Caused by: org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException
    … 16 more
    Root exception:
    org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.beginStateChange(AbstractBundle.java:1087)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:297)
    at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:440)
    at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:268)
    at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
    at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:463)
    at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
    at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:400)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:476)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)
    at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
    at org.eclipse.wst.jsdt.internal.core.JavaModelManager$15.run(JavaModelManager.java:4182)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

    !ENTRY org.eclipse.core.jobs 2 2 2012-06-06 01:22:47.284
    !MESSAGE Job found still running after platform shutdown. Jobs should be canceled by the plugin that scheduled them during shutdown: org.eclipse.m2e.core.internal.index.nexus.IndexUpdaterJob

    August 30, 2012 at 7:06 am #329680 Reply

    support-joy
    Member

    Steven,

    Thank you for the installation details. Your query is related to android plugin development and cordova javascript. Please note that we do not provide intrinsic support for the same. I would recommend you cross-post on cordova javascript forums or android forums to receive better support. E.g.
    1. http://www.sencha.com/forum/archive/index.php/t-202782.html?s=806b802c3aa2c76e05d4d7c69e744764
    2. http://www.greatchurchwebsites.org/forums/showthread.php?t=13345
    3. http://www.sitepoint.com/forums/showthread.php?866779-Javascript-confirm-(cordova)

    If you want me to investigate this further please provide below information –
    1. How did you add android plugin? Please provide update site or weblink to download plugin
    2. How did you add cordova javascript support to MyEclipse? Please add more details.
    3. Clear your .log file located at [your workspace dir]/.metadata/.log, replicate the issue and attach file here
    4. Attach a screenshot of the issue you are facing to help me get a visual
    5. Could you zip a sample project and attach the same here to help me replicate this issue at my end?

    September 1, 2012 at 1:53 am #329758 Reply

    ess_stegra
    Participant

    Joy,
    I will try the other forums first and let you know what I find out. Thanks!

    Steven

  • Author
    Posts
Viewing 3 posts - 1 through 3 (of 3 total)
Reply To: Sample Cordova Javascript/Android Plugin not working

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