Loading Dialog Phonegap Plugin

loadingindicator.js

if(!window.plugins) {
  window.plugins = {};
}

window.plugins.loadingIndicator = {
		
		show: function(options, callback){
			
			window.PhoneGap.exec(
				callback, 
				null, 
				'LoadingIndicator', 
				'showLoading', 
				[options]
			);
			
		},
		
		
		hide: function(callback){
			
			window.PhoneGap.exec(
				callback, 
				null, 
				'LoadingIndicator', 
				'hideLoading', 
				[]
			);
			
		}
		
	};

PGLoadingDialog.java

package com.phonegap.plugins; /*or just use your own namespace*/

import org.json.JSONArray;

import android.app.ProgressDialog;
import android.util.Log;

import com.phonegap.DroidGap;
import com.phonegap.api.Plugin;
import com.phonegap.api.PluginResult;
import com.phonegap.api.PluginResult.Status;

public class PGLoadingDialog extends Plugin {

	final static String TAG = PGLoadingDialog.class.getSimpleName();

	static PGLoadingDialog instance = null;
	static ProgressDialog dialog = null;
	
	
	public static final String LOADING = "showLoading";
	public static final String FINISHEDLOADING = "hideLoading";

	public PGLoadingDialog() {
		instance = this;
	}

	public static PGLoadingDialog getInstance() {
		return instance;
	}
	
	private Thread t;
	
	@Override
	public PluginResult execute(String action, JSONArray data, String callbackId) {
		
		PluginResult result = new PluginResult(Status.INVALID_ACTION);
		final DroidGap droidGap = (DroidGap)this.ctx;

		if(LOADING.contains(action)){
			Log.i(TAG, "------ Spin ON");

			t = new Thread(new Runnable() { 
			    public void run() { 
			        ctx.runOnUiThread(new Runnable() { 
			            public void run() { 
			            	droidGap.spinnerStart("", "Loading. Please wait..."); 
			            } 
			        }); 
			    } 
			}); 

			t.start(); 
			
			result = new PluginResult(Status.OK);
		}
		else if(FINISHEDLOADING.contains(action)){
	
			Log.i(TAG, "------ Spin OFF");
			droidGap.spinnerStop();
			t.stop();
			result = new PluginResult(Status.OK);
		}
		
		
		return  new PluginResult(Status.OK);
	}

}

plugins.xml

<!-- Add this into /res/xml/plugins.xml -->
<plugin name="LoadingIndicator" value=" com.phonegap.plugins.PGLoadingDialog" />

how to write call plugin in javascript ?

Thanks! I updated this for cordova 2.1.0

//Show it

Indicator.show("",show); 
      var show = function(error){

   };

//Hide it

    Indicator.hide("",hide); 
        var hide = function(error){
        };

//JS

var Indicator = {

    show: function(options, callback){

        window.Cordova.exec(
            callback, 
            null, 
            'LoadingIndicator', 
            'showLoading', 
            [options]
        );

    },


    hide: function(callback){

        window.Cordova.exec(
            callback, 
            null, 
            'LoadingIndicator', 
            'hideLoading', 
            []
        );

    }

};

//JAVA

package com.foregroundgalleryplugin;

import org.json.JSONArray;

import android.app.ProgressDialog;
import android.util.Log;

import org.apache.cordova.DroidGap;
import org.apache.cordova.api.Plugin;
import org.apache.cordova.api.PluginResult;
import org.apache.cordova.api.PluginResult.Status;

public class PGLoadingDialog extends Plugin {

final static String TAG = PGLoadingDialog.class.getSimpleName();

static PGLoadingDialog instance = null;
static ProgressDialog dialog = null;


public static final String LOADING = "showLoading";
public static final String FINISHEDLOADING = "hideLoading";

public PGLoadingDialog() {
    instance = this;
}

public static PGLoadingDialog getInstance() {
    return instance;
}

private Thread t;

@SuppressWarnings("deprecation")
@Override
public PluginResult execute(String action, JSONArray data, String callbackId) {

    @SuppressWarnings("unused")
    PluginResult result = new PluginResult(Status.INVALID_ACTION);
    final DroidGap droidGap = (DroidGap)this.cordova.getContext();

    if(LOADING.contains(action)){
        Log.i(TAG, "------ Spin ON");

        t = new Thread(new Runnable() { 
            @SuppressWarnings("deprecation")
            public void run() { 
                ctx.runOnUiThread(new Runnable() { 
                    public void run() { 
                        droidGap.spinnerStart("", "Loading. Please wait..."); 
                    } 
                }); 
            } 
        }); 

        t.start(); 

        result = new PluginResult(Status.OK);
    }
    else if(FINISHEDLOADING.contains(action)){

        Log.i(TAG, "------ Spin OFF");
        droidGap.spinnerStop();
        t.stop();
        result = new PluginResult(Status.OK);
    }


    return  new PluginResult(Status.OK);
}

}