實現自動獲取手機的短信驗證碼,原理通過監聽短信數據庫的變化來解析短信,獲取驗證碼。
1.建立一個監聽數據庫的類
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import android.app.Activity;
import android.database.ContentObserver;
import android.database.Cursor;
import android.net.Uri;
import android.os.Handler;
import android.widget.EditText;
/**
* 監聽短信數據庫,自動獲取短信驗證碼
*
* @author logan
*
*/
public class AutoGetCode extends ContentObserver {
private Cursor cursor = null;
private Activity activity;
private String smsContent = "";
private EditText editText = null;
public AutoGetCode(Activity activity, Handler handler, EditText edittext) {
super(handler);
this.activity = activity;
this.editText = edittext;
}
@Override
public void onChange(boolean selfChange) {
super.onChange(selfChange);
// 讀取收件箱中指定號碼的短信
cursor = activity.managedQuery(Uri.parse("content://sms/inbox"),
new String[] { "_id", "address", "read", "body" }, "address=? and read=?",
new String[] {"你要截獲的電話號碼", "0" }, "_id desc");
// 按短信id排序,如果按date排序的話,修改手機時間後,讀取的短信就不準了
if (cursor != null && cursor.getCount() > 0) {
cursor.moveToFirst();
if (cursor.moveToFirst()) {
String smsbody = cursor
.getString(cursor.getColumnIndex("body"));
String regEx = "(?<![0-9])([0-9]{" + 6 + "})(?![0-9])";
Pattern p = Pattern.compile(regEx);
Matcher m = p.matcher(smsbody.toString());
while (m.find()) {
smsContent = m.group();
editText.setText(smsContent);
}
}
}
}
}
2.在使用的時候在activity中註冊
AutoGetCode autoGetCode = new AutoGetCode(RegistCode.this, new Handler(),
regist_code);//regist_code 要顯示驗證碼的EditText
// 註冊短信變化監聽
this.getContentResolver().registerContentObserver(
Uri.parse("content://sms/"), true, autoGetCode);
3.在合適的地方取消註冊
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
this.getContentResolver().unregisterContentObserver(autoGetCode);
}
4.最後別忘記了添加權限<!-- 讀寫短信的權限 -->
<uses-permission android:name="android.permission.RECEIVE_SMS" />
<uses-permission android:name="android.permission.READ_SMS" />
<uses-permission android:name="android.permission.SEND_SMS" />
<uses-permission android:name="android.permission.WRITE_SMS" />