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POCalling Java Method from Javascript in Android Project - PhoneGap
 

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  1. POCalling Java Method from Javascript in Android Project - PhoneGap
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    <p>I have the following Java Class</p> <pre><code>package com.phonegap.plugins.video; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.URL; import java.net.URLConnection; import org.json.JSONArray; import org.json.JSONException; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.net.Uri; import org.apache.cordova.api.CallbackContext; import org.apache.cordova.api.CordovaPlugin; import org.apache.cordova.api.PluginResult; public class VideoPlayer extends CordovaPlugin { private static final String YOU_TUBE = "youtube.com"; private static final String ASSETS = "file:///android_asset/"; @Override public boolean execute(String action, JSONArray args, CallbackContext callbackContext) { PluginResult.Status status = PluginResult.Status.OK; String result = ""; //this.greatMethod(); try { if (action.equals("playVideo")) { playVideo(args.getString(0)); } else { status = PluginResult.Status.INVALID_ACTION; } callbackContext.sendPluginResult(new PluginResult(status, result)); } catch (JSONException e) { callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.JSON_EXCEPTION)); } catch (IOException e) { callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.IO_EXCEPTION)); } return true; } private void playVideo(String url) throws IOException { if (url.contains("bit.ly/") || url.contains("goo.gl/") || url.contains("tinyurl.com/") || url.contains("youtu.be/")) { //support for google / bitly / tinyurl / youtube shortens URLConnection con = new URL(url).openConnection(); con.connect(); InputStream is = con.getInputStream(); //new redirected url url = con.getURL().toString(); is.close(); } // Create URI Uri uri = Uri.parse(url); Intent intent = null; // Check to see if someone is trying to play a YouTube page. if (url.contains(YOU_TUBE)) { // If we don't do it this way you don't have the option for youtube uri = Uri.parse("vnd.youtube:" + uri.getQueryParameter("v")); if (isYouTubeInstalled()) { intent = new Intent(Intent.ACTION_VIEW, uri); } else { intent = new Intent(Intent.ACTION_VIEW); intent.setData(Uri.parse("market://details?id=com.google.android.youtube")); } } else if(url.contains(ASSETS)) { // get file path in assets folder String filepath = url.replace(ASSETS, ""); // get actual filename from path as command to write to internal storage doesn't like folders String filename = filepath.substring(filepath.lastIndexOf("/")+1, filepath.length()); // Don't copy the file if it already exists File fp = new File(this.cordova.getActivity().getFilesDir() + "/" + filename); if (!fp.exists()) { this.copy(filepath, filename); } // change uri to be to the new file in internal storage uri = Uri.parse("file://" + this.cordova.getActivity().getFilesDir() + "/" + filename); //return uri; /*NEED TO RETUNRN THE URI TO THE CALLED TO GIVE THEMENEW LOCATION OF THE FILE CREATED BY THIS CLASS*/ // Display video player intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(uri, "video/mp4"); } else { // Display video player intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(uri, "video/mp4"); } this.cordova.getActivity().startActivity(intent); } private void copy(String fileFrom, String fileTo) throws IOException { // get file to be copied from assets InputStream in = this.cordova.getActivity().getAssets().open(fileFrom); // get file where copied too, in internal storage. // must be MODE_WORLD_READABLE or Android can't play it FileOutputStream out = this.cordova.getActivity().openFileOutput(fileTo, Context.MODE_WORLD_READABLE); // Transfer bytes from in to out byte[] buf = new byte[8192]; int len; while ((len = in.read(buf)) &gt; 0) out.write(buf, 0, len); in.close(); out.flush(); out.close(); } private boolean isYouTubeInstalled() { PackageManager pm = this.cordova.getActivity().getPackageManager(); try { pm.getPackageInfo("com.google.android.youtube", PackageManager.GET_ACTIVITIES); return true; } catch (PackageManager.NameNotFoundException e) { return false; } } public String greatMethod(){ System.out.println("Great Method return"); return "great"; } } </code></pre> <p>I have following in my config.xml file</p> <pre><code>&lt;plugin name="VideoPlayer" value="com.phonegap.plugins.video.VideoPlayer"/&gt; </code></pre> <p>I want to call say the 'greatMethod' from the javascript file. how do I do that. calling the play method like following works but calling other methods do not work and the play method is not even in the given class.</p> <p>WORKS:</p> <pre><code>window.plugins.videoPlayer.play("file:///android_asset/www/videos/myVideo.mp4") </code></pre> <p>DOES NOT WORK:</p> <pre><code>alert(window.plugins.videoPlayer.greatMethod()); </code></pre> <p>Any help will be much appreciated.</p>
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