Developing Android code

As specified in our plugin.xml file's platform section for Android, the implementation of our plugin in Android is located at src/android/Sms.java. The following code snippet shows the first part of the Sms.java file:

package com.jsmobile.plugins.sms;

import org.apache.cordova.CordovaPlugin;
import org.apache.cordova.CallbackContext;
import org.apache.cordova.PluginResult;
import org.apache.cordova.PluginResult.Status;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.telephony.SmsManager;

public class Sms extends CordovaPlugin {
    private static final String SMS_GENERAL_ERROR = "SMS_GENERAL_ERROR";
    private static final String NO_SMS_SERVICE_AVAILABLE...