Android Simple App That Send & Receive SMS

                               

 Open your Android Studio and click on new project.

Give it a Name.

Select Your Minimum SDK version.

Select a Blank Activity.

And Then Hit Next Next, and Then click on Finish.

Now Here is your Sending Part(java code).

public void sendMessage(View v) // this method will an argument of type View 

                                                          // when the Send Button is pressed in keyboard.

{

    String number= numberEdit.getText().toString(); //Getting number From phone 

                                                                                      // EditText   

 String message=messageEdit.getText().toString(); //Getting Message from 

                                                     //message EditText

if(number.length()>0&&message.length()>0)
 {

  try {

      smsManager.sendTextMessage(number, null, message, null, null); //Send SMS 

       Toast.makeText(this, "SMS send successfully", Toast.LENGTH_SHORT).show();
      } 

catch (Exception e)

 {       

              //Throw Exception in LogCat if message sending Failed for some Reason           

        Toast.makeText(this, "SMS sending Failed", Toast.LENGTH_SHORT).show();               e.printStackTrace();           

         Log.i("Wisal","OOOpsssss Error While Receiving SMS",e);  }

 } // if end

 else  // Only show when you left either phone number or message editText empty.   

 {

        Toast toast=Toast.makeText(this,"Please fill the Required Field"

                                  ,Toast.LENGTH_LONG);

        toast.setGravity(Gravity.CENTER,0,0);        toast.show();   

 }

}

And here is Receiving part (java code).

 smsReceiver=new BroadcastReceiver() {

            @Override

            public void onReceive(Context context, Intent intent) {

                if (intent.getAction().equals(Telephony.Sms.Intents.DATA_SMS_RECEIVED_ACTION));

                 receiveText.setText("");

                Bundle bundle=intent.getExtras();  //getting data from the intent

                try{

                    if(bundle!=null)

                    {

                        String message=null;  //initialized the String,to display the resulted text in text view

                        final Object[] pdu= (Object[]) bundle.get("pdus");  //create an array of pdu to store the incoming text

                       // pdus is the industrial format for the SMS OOhhhh.

                        for(int i=0;i<pdu.length;i++)

                        {

                            SmsMessage currentMessage = SmsMessage.createFromPdu((byte[]) pdu[i]);

                            String phoneNumber=currentMessage.getDisplayOriginatingAddress(); //get the Phone number from the Received SMs

                            message = currentMessage.getDisplayMessageBody();

                            // To Show you the phone number and SMS in the Toast

                            int duration = Toast.LENGTH_LONG;

                            Toast toast = Toast.makeText(getApplicationContext(),"Phone Number : "

                                    +phoneNumber +"\n"+"Message : "+  message, duration);

                            toast.setGravity(Gravity.CENTER,0,0);

                            toast.show();

                        }  // for loop end

                        receiveText.setText(message); // To show the SMS in Text View

                    }  // Bundle null

                }  // try End

               catch(Exception e)

               {

                   Log.i("Wisal","Error While Receiving SMS",e); //Printing the Exception in LogCat

               }   //catch End.

            }  //on Receive End

        };   //Broadcast Receiver End

Don't forget to add permission in manifest file.... :)