Android中实现短信发送的一种方式

package com.test.smsmangerdemo.sendsmsactivity;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.content.Intent;
import android.app.PendingIntent;
import android.telephony.SmsManager;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;




/**
 *发送短信实例
 */

public class SendSmsActivity extends AppCompatActivity {
    EditText phone, content;
    Button send;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_send_sms);
        //获取 SMSManger管理器
        final SmsManager smsManager = SmsManager.getDefault();
        //初始化控件
        phone = (EditText) findViewById(R.id.et_phone);
        content = (EditText) findViewById(R.id.et_content);
        send = (Button) findViewById(R.id.btn_send);

        send.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                //创建一个 android.app.PendingIntent 对象
                PendingIntent pi = PendingIntent.getActivity(SendSmsActivity.this, 0, new Intent(), 0);

                //发送短信
                smsManager.sendTextMessage(phone.getText().toString(), null, content.getText().toString(),
                        pi, null);

                //提示短信发送完成
                Toast.makeText(SendSmsActivity.this, "短信发送完成", Toast.LENGTH_SHORT).show();
            }
        });
    }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.test.smsmangerdemo.sendsmsactivity" >
    <uses-permission android:name="android.permission.SEND_SMS"/>
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme" >
        <activity android:name=".SendSmsActivity" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

<?xml version="1.0" encoding="utf-8"?>
 <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"
tools:context="com.test.smsmangerdemo.sendsmsactivity.SendSmsActivity">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

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

    <EditText
        android:id="@+id/et_phone"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"/>
</LinearLayout>


<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="10dp"
    android:orientation="horizontal">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="发送内容"/>

    <EditText
        android:id="@+id/et_content"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:gravity="top"
        android:lines="5"
        android:text="你好"/>
</LinearLayout>

<Button
    android:layout_gravity="center_horizontal"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="发送"
    android:id="@+id/btn_send"
    />
</LinearLayout>