实例教程二：短信发送器

package cn.itcast.sns;
import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.telephony.gsm.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 implements OnClickListener{
private EditText edtNum;
private EditText edtMsg;
private Button btnSend;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
initView();
}
private void initView(){
edtNum = (EditText)this.findViewById(R.id.edtNum);
edtMsg = (EditText)this.findViewById(R.id.edtMsg);
btnSend = (Button)this.findViewById(R.id.btnSend);
btnSend.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch(v.getId()){
case R.id.btnSend:
String num = edtNum.getText().toString();
String msg = edtMsg.getText().toString();
SmsManager manager = SmsManager.getDefault();
//divideMessage()--若字数超过限制的行数，则拆分成几条短信发送
ArrayList<String> texts = manager.divideMessage(msg);
for(String text : texts){
manager.sendTextMessage(num, null, text, null, null);
}
//三种通知--1.状态栏通知   2.对话框通知   3.吐西(Toast)通知
//Toast第3个参数是通知显示的时间
Toast.makeText(MainActivity.this, R.string.success, Toast.LENGTH_SHORT).show();
break;
default:
break;
}
}
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/phoneNumber" />
<EditText
android:id="@+id/edtNum"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/sns" />
<EditText
android:id="@+id/edtMsg"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:minLines="3" />
<Button
android:id="@+id/btnSend"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/send" />
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">Hello World, MainActivity!</string>
<string name="app_name">短信发送器</string>
<string name="phoneNumber">请输入手机号</string>
<string name="sns">请输入短信内容</string>
<string name="send">发送短信</string>
<string name="success">发送完成</string>
</resources>

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