public class ScreenTest extends Activity {

class SmsContent extends ContentObserver {

private Cursor cursor = null;

public SmsContent(Handler handler) {

super(handler);

}

/**

* @Description 当短信表发送改变时，调用该方法 需要两种权限 android.permission.READ_SMS 读取短信

* android.permission.WRITE_SMS 写短信

* @Author Snake

* @Date 2010-1-12

*/

@Override

public void onChange(boolean selfChange) {

super.onChange(selfChange);

// 读取收件箱中指定号码的短信

cursor = managedQuery(Uri.parse("content://sms/inbox"),

new String[] { "_id", "address", "read" },

" address=? and read=?",

new String[] { "12345678901", "0" }, "date desc");

if (cursor != null) {

ContentValues values = new ContentValues();

values.put("read", "1"); // 修改短信为已读模式

cursor.moveToFirst();

while (cursor.isLast()) {

// 更新当前未读短信状态为已读

getContentResolver().update(

Uri.parse("content://sms/inbox"), values, " _id=?",

new String[] { "" + cursor.getInt(0) });

cursor.moveToNext();

}

}

}

}

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

SmsContent content = new SmsContent(new Handler());

// 注册短信变化监听

this.getContentResolver().registerContentObserver(

Uri.parse("content://sms/"), true, content);

}

}