MultiSmsSender/src/com/openwide/android/MySMSManager.java

package com.openwide.android;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;

import android.app.PendingIntent;
import android.os.Build;
import android.util.Log;

public class MySMSManager {
	private static Object manager;
	private static Method getDefault;
	private static Method divide;
	private static Method sendMutlipart;
	
	public MySMSManager() {
		if(manager == null) {
			String className;
			int sdkVersion = Integer.parseInt(Build.VERSION.SDK);
            if (sdkVersion <= 3) { //CUPCAKE
            	Log.d("MultiSMSSender", "Cupcake version");
                className = "android.telephony.gsm.SmsManager";
            } else {
            	Log.d("MultiSMSSender", "version > Cupcake");
                className = "android.telephony.SmsManager";
            }
            try {
                Class clazz =
                        Class.forName(className);
                Object[] paramInvoke = new Object[0];
                Class[] signGetDefault = new Class[]{};
                Class<String>[] signDivide = new Class[] {String.class};
                Class[] signSend = new Class[] {String.class, String.class, ArrayList.class, ArrayList.class, ArrayList.class};
                getDefault = clazz.getMethod("getDefault", signGetDefault);
                divide = clazz.getMethod("divideMessage", signDivide);
                sendMutlipart = clazz.getMethod("sendMultipartTextMessage", signSend);
                manager = getDefault.invoke(null, paramInvoke);
            } catch (Exception e) {
               e.printStackTrace();
            }
		}
	}
	
	public ArrayList<String> divideMessage(String text){
		Object[] param = new Object[1];
		param[0] = text;
		try {
			return (ArrayList<String>)divide.invoke(manager, param);
		} catch (IllegalArgumentException e) {
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			e.printStackTrace();
		} catch (InvocationTargetException e) {
			e.printStackTrace();
		}
		return null;
	}
	public void sendMultipartTextMessage(String destinationAddress, String scAddress, ArrayList<String> parts, ArrayList<PendingIntent> sentIntents, ArrayList<PendingIntent> deliveryIntents ) {
		Object[] param = new Object[5];
		param[0] = destinationAddress;
		param[1] = scAddress;
		param[2] = parts;
		param[3] = sentIntents;
		param[4] = deliveryIntents;
		try {
			sendMutlipart.invoke(manager, param);
		} catch (IllegalArgumentException e) {
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			e.printStackTrace();
		} catch (InvocationTargetException e) {
			e.printStackTrace();
		}
	}

}