Send SMS using android.telephony.SmsManager

Android OS provide android.telephony.SmsManager, to manages SMS operations such as sending data, text, and pdu SMS messages. Get this object by calling the static method SmsManager.getDefault(). Here is a example to send SMS sing android.telephony.SmsManager.



Modify main.xml to have two EditText for user to enter phone number and text.

<?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="@string/hello"
  />
<TextView
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Enter Phone Number:"
  />
<EditText
  android:id="@+id/smsnumber"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:inputType="phone"
  />
<TextView
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Enter Phone SMS Text:"
  />
<EditText
  android:id="@+id/smstext"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  />
<Button
  android:id="@+id/sendsms"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text=" Send SMS "
  />
</LinearLayout>

main code, AndroidSMS.java

package com.exercise.AndroidSMS;

import android.app.Activity;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class AndroidSMS extends Activity {
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
    
      final EditText edittextSmsNumber = (EditText)findViewById(R.id.smsnumber);
      final EditText edittextSmsText = (EditText)findViewById(R.id.smstext);
      Button buttonSendSms = (Button)findViewById(R.id.sendsms);
    
      buttonSendSms.setOnClickListener(new Button.OnClickListener(){

 @Override
 public void onClick(View arg0) {
  // TODO Auto-generated method stub
  SmsManager smsManager = SmsManager.getDefault();
  String smsNumber = edittextSmsNumber.getText().toString();
  String smsText = edittextSmsText.getText().toString();
  smsManager.sendTextMessage(smsNumber, null, smsText, null, null);
 }});
  }
}

Modify AndroidManifest.xml to grant permission of "android.permission.SEND_SMS".

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.exercise.AndroidSMS"
    android:versionCode="1"
    android:versionName="1.0">
  <uses-sdk android:minSdkVersion="4" />
  <application android:icon="@drawable/icon" android:label="@string/app_name">
      <activity android:name=".AndroidSMS"
                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>
  <uses-permission android:name="android.permission.SEND_SMS"></uses-permission>
</manifest>

Download the files.

Related Articles:
- Send SMS using Intent.ACTION_SENDTO
- Send SMS in Alarm Service at a pre-defined time