/**
 * 短信驗(yàn)證碼截取
 * 
 * @author yangfan
 * 
 */
public class SMSContentObserver extends ContentObserver
{

 private Context mContext; // 上下文
 private Handler mHandler; // 更新UI線程
 private String code; // 驗(yàn)證碼

 public SMSContentObserver(Context context, Handler handler)
 {
 super(handler);
 mContext = context;
 mHandler = handler;
 }

 /**
 * 回調(diào)函數(shù), 當(dāng)所監(jiān)聽的Uri發(fā)生改變時(shí)，就會(huì)回調(diào)此方法
 * 
 * 注意當(dāng)收到短信的時(shí)候會(huì)回調(diào)兩次
 * 
 * @param selfChange
 * 此值意義不大 一般情況下該回調(diào)值false
 */
 @Override
 public void onChange(boolean selfChange, Uri uri)
 {

 Log.e("XXXXXXXXXXXXXXXX", uri.toString());

 // 第一次回調(diào) 不是我們想要的 直接返回
 if (uri.toString().equals("content://sms/raw"))
 {
 return;
 }

 // 第二次回調(diào) 查詢收件箱里的內(nèi)容
 Uri inboxUri = Uri.parse("content://sms/inbox");

 // 按時(shí)間順序排序短信數(shù)據(jù)庫
 Cursor c = mContext.getContentResolver().query(inboxUri, null, null,
 null, "date desc");
 if (c != null)
 {
 if (c.moveToFirst())
 {

 // 獲取手機(jī)號(hào)
 String address = c.getString(c.getColumnIndex("address"));
 // 獲取短信內(nèi)容
 String body = c.getString(c.getColumnIndex("body"));
 // 判斷手機(jī)號(hào)是否為目標(biāo)號(hào)碼
 if (!address.equals("你的目標(biāo)號(hào)碼"))
 {
  return;
 }

 // 正則表達(dá)式截取短信中的6位驗(yàn)證碼
 Pattern pattern = Pattern.compile("(\\d{6})");
 Matcher matcher = pattern.matcher(body);

 // 如果找到通過Handler發(fā)送給主線程
 if (matcher.find())
 {
  code = matcher.group(0);
  mHandler.obtainMessage(1, code).sendToTarget();
 }
 }

 }
 c.close();

 }

}

<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:padding="50dp" >

 <TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="您的驗(yàn)證碼為:" />

 <EditText
 android:id="@+id/smsCode"
 android:focusable="false"
 android:focusableInTouchMode="false"
 android:layout_width="match_parent"
 android:layout_height="wrap_content" />

</LinearLayout>
public class MainActivity extends ActionBarActivity
{
 private EditText code;

 @SuppressLint("HandlerLeak")
 Handler handler = new Handler()
 {
 @Override
 public void handleMessage(Message msg)
 {
 if (msg.what == 1)
 {
 code.setText(msg.obj.toString());
 }
 }
 };

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

 code = (EditText) findViewById(R.id.smsCode);

 SMSContentObserver smsContentObserver = new SMSContentObserver(
 MainActivity.this, handler);

 MainActivity.this.getContentResolver().registerContentObserver(
 Uri.parse("content://sms/"), true, smsContentObserver);
 }
}