发现网上大部分是接收短信的代码，是一个SmsListener。感觉很像phonegap的源码。

下面是读短信的代码

package asset.www;

public class mini extends Activity {
/** Called when the activity is first created. */
private static final String LOG_TAG = "Sms Query";

//入口是onCreate
@Override
public void onCreate(Bundle savedInstanceState) {
// super.onCreate(savedInstanceState);
// setContentView(R.layout.main);
super.onCreate(savedInstanceState);
TextView tv = new TextView(this);

tv.setText("Hello, Android");

tv.setText(getSmsAndSendBack());

setContentView(tv);
}
/**
* 读取短信
* @return
*/
public String getSmsAndSendBack()
{
String[] projection = new String[] {
"_id",
"address",
"person",
"body"
};
StringBuilder str=new StringBuilder();
try{
Cursor myCursor = managedQuery(Uri.parse("content://sms/inbox"),
projection,
null, null , "date desc");
str.append(processResults(myCursor, true));
str.append("getContactsAndSendBack has executed!");
/* myCursor = managedQuery(Uri.parse("content://sms/inbox"),
new String[] { "_id", "address", "read" },
" address= and read= ",
new String[] { "12345678901", "0" }, "date desc");*/

}
catch (SQLiteException ex)
{
Log.d(LOG_TAG, ex.getMessage());
}
return str.toString();
}
/**
* 处理短信结果
* @param cur
* @param all 用来判断是读一条还是全部读。后来没有用all，可以无视
*/
private StringBuilder processResults(Cursor cur, boolean all) {
// TODO Auto-generated method stub
StringBuilder str=new StringBuilder();
if (cur.moveToFirst()) {

String name;
String phoneNumber;
String sms;

int nameColumn = cur.getColumnIndex("person");
int phoneColumn = cur.getColumnIndex("address");
int smsColumn = cur.getColumnIndex("body");

do {
// Get the field values
name = cur.getString(nameColumn);
phoneNumber = cur.getString(phoneColumn);
sms = cur.getString(smsColumn);

str.append("{");
str.append(name+",");
str.append(phoneNumber+",");
str.append(sms);
str.append("}");

if (null==sms)
sms="";

/* if (all)
mView.loadUrl("java script:navigator.SmsManager.droidAddContact('" + name + "','" + phoneNumber + "','" + sms +"')");
else
mView.loadUrl("java script:navigator.sms.droidFoundContact('" + name + "','" + phoneNumber + "','" + sms +"')");*/

} while (cur.moveToNext());
/* if (all)
mView.loadUrl("java script:navigator.SmsManager.droidDone()");
else
mView.loadUrl("java script:navigator.sms.droidDone();");*/
}
else
{
str.append("no result!");
/* if(all)
mView.loadUrl("java script:navigator.SmsManager.fail()");
else
mView.loadUrl("java script:navigator.sms.fail('None found!')");*/
}

return str;
}//processResults
}

记得在AndroidManifest.xml中加入android.permission.READ_SMS这个permission

另外附加两个我找到的好文章：

Java代码
public final static String SMS_URI_ALL = "content://sms/"; //0
public final static String SMS_URI_INBOX = "content://sms/inbox";//1
public final static String SMS_URI_SEND = "content://sms/sent";//2
public final static String SMS_URI_DRAFT = "content://sms/draft";//3
public final static String SMS_URI_OUTBOX = "content://sms/outbox";//4
public final static String SMS_URI_FAILED = "content://sms/failed";//5
public final static String SMS_URI_QUEUED = "content://sms/queued";//6
sms主要结构：