Android 9 Development Cookbook - Third Edition

How to do it...

First, we need to add the necessary permissions for sending an SMS. Then, we'll create a layout with phone number and message fields and a Send button. When the Send button is clicked, we'll create and send the SMS. Here are the steps:

1. Open the Android Manifest and add the following permission:

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

2. Open activity_main.xml and replace the existing layout with the following XML:

<?xml version="1.0" encoding="utf-8"?><RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent" >    <EditText        android:id="@+id/editTextNumber"        android:layout_width="match_parent"        android:layout_height= ...