Sending SMS in Android

There are two way to send SMS in Android

1. Using Intent to send SMS
2. Using SmsManager to send SMS

* Using Intent to send SMS

 We can use Intent to send SMS by calling default SMS functionality of the Android. It's easy to use because we don’t have to do anything special.

1. Create XML file in layout folder "res/layout/activity_main.xml".

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:padding="15dp" >

        <Button
            android:id="@+id/btnComposeSMS"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:text="Open Compose SMS" />
    </LinearLayout>

</LinearLayout>

 2. Create on activity java file "MainActivity.java"

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {


 private Button btnOpenComposeSMS;


 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  btnOpenComposeSMS = (Button) findViewById(R.id.btnComposeSMS);

  //Open Compose SMS Button Client Event Code here 
  btnOpenComposeSMS.setOnClickListener(new OnClickListener() {
   @Override
   public void onClick(View v) {

    Intent smsIntent = new Intent(Intent.ACTION_VIEW);
    smsIntent.setData(Uri.parse("smsto:"));
    smsIntent.setType("vnd.android-dir/mms-sms");

    smsIntent.putExtra("address"  , new String ("0000000000"));
    smsIntent.putExtra("sms_body"  , "Open Comopse SMS using Intent");
    try {
     startActivity(smsIntent);
    } catch (android.content.ActivityNotFoundException ex) {
     Toast.makeText(MainActivity.this,"SMS faild, please try again later.", Toast.LENGTH_SHORT).show();
    }
   }
  });

 }
}

3.Add your activity class in AndroidMenifest.xml file

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.limbani.sendsms"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="21" />

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

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest> 

4. Screenshot

*Using SmsManager to send SMS

In Android provide SmsManager API to send SMS programmatically. see below example code.

1. Create XML file in layout folder "res/layout/activity_main.xml".

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:padding="15dp" >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Number" />

        <EditText
            android:id="@+id/edt_number"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="5dp"
            android:ems="10"
            android:inputType="phone" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="5dp"
            android:text="Message" />

        <EditText
            android:id="@+id/edt_message"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="5dp"
            android:gravity="top"
            android:minLines="5"
            android:text="Send SMS Demo Application" />

        <Button
            android:id="@+id/btnSend"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:text="Send" />
    </LinearLayout>

</LinearLayout>

2. Create on activity java file "MainActivity.java"

package com.limbani.sendsms;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {


 private Button btnSend;
 private EditText edtNumber, edtMessage;


 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  btnSend = (Button) findViewById(R.id.btnSend);

  edtNumber = (EditText) findViewById(R.id.edt_number);
  edtMessage = (EditText) findViewById(R.id.edt_message);

  //Send Button Client Event Code here
  btnSend.setOnClickListener(new OnClickListener() {
   @Override
   public void onClick(View v) {
    String number = edtNumber.getText().toString().trim();
    String message = edtMessage.getText().toString().trim();

    if(number.length() <= 0){
     Toast.makeText(MainActivity.this,"Please enter Number", Toast.LENGTH_SHORT).show();
    }
    else if (message.length() <= 0) {
     Toast.makeText(MainActivity.this,"Please enter message", Toast.LENGTH_SHORT).show();
    }
    else {
     try {
      SmsManager smsManager = SmsManager.getDefault();
      smsManager.sendTextMessage(number, null, message, null, null);
      Toast.makeText(getApplicationContext(), "SMS successfully sent",  Toast.LENGTH_LONG).show();
     } catch (Exception e) {
      Toast.makeText(getApplicationContext(), "SMS faild, please try again.", Toast.LENGTH_LONG).show();
      e.printStackTrace();
     }
    }
   }
  });

 }
}

3.  Add your activity class in AndroidManifest.xml file.
Add user pemission
"

 <uses-permission android:name="android.permission.SEND_SMS"/>

"

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.limbani.sendsms"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="21" />
    <uses-permission android:name="android.permission.SEND_SMS"/>

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

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

4. Screenshot

Download APK file Here