Send and recieve SMS in Android Sample Code

In android you can use SMSManager ,Manages SMS operations such as sending data, text, and pdu SMS messages. Get this object by calling the static method SmsManager.getDefault(). 

SmsManager API

SmsManager smsManager = SmsManager.getDefault();
 smsManager.sendTextMessage("phoneNo", null, "sms message", null, null);

1.First  create a simple activity called as MainActivity, then we will create the layout as follows:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <TextView 
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Enter the phone number of recipient"
        />    
    <EditText
        android:id="@+id/txtPhoneNo" 
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"       
        />
    <TextView 
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"        
        android:text="Message"
        />    
    <EditText
        android:id="@+id/txtMessage" 
        android:layout_width="fill_parent"
        android:layout_height="150px"

        android:gravity="top"        

        />         
    <Button
        android:id="@+id/btnSendSMS" 
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Send SMS"
        />   
</LinearLayout>

2. The code for the activity is as follows





public class MainActivity extends Activity
{
    Button btnSendSMS;
    EditText txtPhoneNo;
    EditText txtMessage;
   
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);       
        btnSendSMS = (Button) findViewById(R.id.btnSendSMS);
        txtPhoneNo = (EditText) findViewById(R.id.txtPhoneNo);
        txtMessage = (EditText) findViewById(R.id.txtMessage);
       
        /*
        Intent sendIntent = new Intent(Intent.ACTION_VIEW);
        sendIntent.putExtra("sms_body", "Content of the SMS goes here...");
        sendIntent.setType("vnd.android-dir/mms-sms");
        startActivity(sendIntent);
        */
               
        btnSendSMS.setOnClickListener(new View.OnClickListener()
        {
            public void onClick(View v)
            {               
                String phoneNo = txtPhoneNo.getText().toString();
                String message = txtMessage.getText().toString();                
                if (phoneNo.length()>0 && message.length()>0)               
                    sendSMS(phoneNo, message);               
                else
                    Toast.makeText(getBaseContext(),
                        "Please enter both phone number and message.",
                        Toast.LENGTH_SHORT).show();
            }
        });       
    }
   
    //---sends a SMS message to another device---
    private void sendSMS(String phoneNumber, String message)
    {     
        /*
        PendingIntent pi = PendingIntent.getActivity(this, 0,
                new Intent(this, test.class), 0);               
            SmsManager sms = SmsManager.getDefault();
            sms.sendTextMessage(phoneNumber, null, message, pi, null);       
        */
       
        String SENT = "SMS_SENT";
        String DELIVERED = "SMS_DELIVERED";
       
        PendingIntent sentPI = PendingIntent.getBroadcast(this, 0,
            new Intent(SENT), 0);
       
        PendingIntent deliveredPI = PendingIntent.getBroadcast(this, 0,
            new Intent(DELIVERED), 0);
       
        //---when the SMS has been sent---
        registerReceiver(new BroadcastReceiver(){
            @Override
            public void onReceive(Context arg0, Intent arg1) {
                switch (getResultCode())
                {
                    case Activity.RESULT_OK:
                        Toast.makeText(getBaseContext(), "SMS sent",
                                Toast.LENGTH_SHORT).show();
                        break;
                    case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
                        Toast.makeText(getBaseContext(), "Generic failure",
                                Toast.LENGTH_SHORT).show();
                        break;
                    case SmsManager.RESULT_ERROR_NO_SERVICE:
                        Toast.makeText(getBaseContext(), "No service",
                                Toast.LENGTH_SHORT).show();
                        break;
                    case SmsManager.RESULT_ERROR_NULL_PDU:
                        Toast.makeText(getBaseContext(), "Null PDU",
                                Toast.LENGTH_SHORT).show();
                        break;
                    case SmsManager.RESULT_ERROR_RADIO_OFF:
                        Toast.makeText(getBaseContext(), "Radio off",
                                Toast.LENGTH_SHORT).show();
                        break;
                }
            }
        }, new IntentFilter(SENT));
       
        //---when the SMS has been delivered---
        registerReceiver(new BroadcastReceiver(){
            @Override
            public void onReceive(Context arg0, Intent arg1) {
                switch (getResultCode())
                {
                    case Activity.RESULT_OK:
                        Toast.makeText(getBaseContext(), "SMS delivered",
                                Toast.LENGTH_SHORT).show();
                        break;
                    case Activity.RESULT_CANCELED:
                        Toast.makeText(getBaseContext(), "SMS not delivered",
                                Toast.LENGTH_SHORT).show();
                        break;                       
                }
            }
        }, new IntentFilter(DELIVERED));       
       
        SmsManager sms = SmsManager.getDefault();
        sms.sendTextMessage(phoneNumber, null, message, sentPI, deliveredPI);              
    }   
}

3.The code for the SmsReceiver  BroadcastReceiver is as follows 

Create a class which extends BroadcastReceiver, which override the onRecieve Method.In the onRecieve method, remove the data from the received Intent, remove the SmsMessage object, and obtain the sender’s address and text to display on a toast.





import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.gsm.SmsMessage;
import android.widget.Toast;

public class SmsReceiver extends BroadcastReceiver
{
    @Override
    public void onReceive(Context context, Intent intent)
    {
        //---get the SMS message passed in---
        Bundle bundle = intent.getExtras();       
        SmsMessage[] msgs = null;
        String str = "";           
        if (bundle != null)
        {
            //---retrieve the SMS message received---
            Object[] pdus = (Object[]) bundle.get("pdus");
            msgs = new SmsMessage[pdus.length];           
            for (int i=0; i<msgs.length; i++){
                msgs[i] = SmsMessage.createFromPdu((byte[])pdus[i]);               
                str += "SMS from " + msgs[i].getOriginatingAddress();                    
                str += " :";
                str += msgs[i].getMessageBody().toString();
                str += "\n";       
            }
            //---display the new SMS message---
            Toast.makeText(context, str, Toast.LENGTH_SHORT).show();
        }                        
    }
}

4.Add the following in manifest file

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.sms_sample"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />
    <uses-permission android:name="android.permission.READ_SMS"/>
    <uses-permission android:name="android.permission.WRITE_SMS"/>

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/title_activity_main" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
         <receiver android:name=".SmsReceiver">
            <intent-filter>
                <action android:name=
                    "android.provider.Telephony.SMS_RECEIVED" />
            </intent-filter>
        </receiver>
    </application>

</manifest>

Now , run the app in your device to test and you can use the above sms code in your next  Android app.