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copied!<p>If you're using PhoneGap, then create a custom PhoneGap plugin:</p> <p>Create a new class in your app's package:</p> <pre><code>package com.Demo; //replace with your package name import org.json.JSONArray; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import com.phonegap.api.Plugin; import com.phonegap.api.PluginResult; import com.phonegap.api.PluginResult.Status; public class PackageManagerPlugin extends Plugin { public final String ACTION_GET_VERSION_NAME = "GetVersionName"; @Override public PluginResult execute(String action, JSONArray args, String callbackId) { PluginResult result = new PluginResult(Status.INVALID_ACTION); PackageManager packageManager = this.ctx.getPackageManager(); if(action.equals(ACTION_GET_VERSION_NAME)) { try { PackageInfo packageInfo = packageManager.getPackageInfo( this.ctx.getPackageName(), 0); result = new PluginResult(Status.OK, packageInfo.versionName); } catch (NameNotFoundException nnfe) { result = new PluginResult(Status.ERROR, nnfe.getMessage()); } } return result; } } </code></pre> <p>In the plugins.xml, add the following line:</p> <pre><code><plugin name="PackageManagerPlugin" value="com.Demo.PackageManagerPlugin" /> </code></pre> <p>In your <a href="http://docs.phonegap.com/en/1.0.0/phonegap_events_events.md.html#deviceready">deviceready event</a>, add the following code:</p> <pre><code>var PackageManagerPlugin = function() { }; PackageManagerPlugin.prototype.getVersionName = function(successCallback, failureCallback) { return PhoneGap.exec(successCallback, failureCallback, 'PackageManagerPlugin', 'GetVersionName', []); }; PhoneGap.addConstructor(function() { PhoneGap.addPlugin('packageManager', new PackageManagerPlugin()); }); </code></pre> <p>Then, you can get the versionName attribute by doing:</p> <pre><code>window.plugins.packageManager.getVersionName( function(versionName) { //do something with versionName }, function(errorMessage) { //do something with errorMessage } ); </code></pre> <p>Derived from <a href="http://groups.google.com/group/phonegap/browse_thread/thread/db7f1b09bcae2bdb?pli=1&_done=/group/phonegap/browse_thread/thread/db7f1b09bcae2bdb?pli%3D1%26auth%3DDQAAAIUAAADHTpKQDhprc1z47kIpig_XDwwdijnmrz3n-Ppc8t4iBKMyBAYvlq5sgw85dETkxU2mjmAVjfZHLhsBK1n3EeD2g6eSUgZfmcads4Y8dyICbgsrmRe7qpXo_qN9Foydd7PQwwzB_UGI9kfEyNaGNtxvDWpAwDxrYlcrAFF3vOk0saebVeBNjDv2yIHZaAePwik&fwc=1">here</a> and <a href="http://www.practicaldeveloper.net/2011/09/creating-plugin-with-phonegap-10.html">here</a>.</p>

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