Android短信验证码监听解决onChange多次调用的方法

mUri===content://sms/raw/20mUri===content://sms/inbox/20

mUri===content://sms

public static class SMSCodeObserver extends ContentObserver {    private Activity mActivity;    private static final String TAG = "SMSCodeObserver";    private SMSCodeListener mSMSCodeListener;    private Uri mUri;    public void setSMSCodeListener(SMSCodeListener SMSCodeListener) {      mSMSCodeListener = SMSCodeListener;    }    public interface SMSCodeListener {      void onResult(String code);    }    public SMSCodeObserver(Handler handler, Activity activity) {      super(handler);      mActivity = activity;    }    public void register() {      mActivity.getContentResolver().registerContentObserver(          Uri.parse("content://sms/"), true, this);    }    public void unRegister() {      mActivity.getContentResolver().unregisterContentObserver(this);    }    @Override    public void onChange(boolean selfChange, Uri uri) {      super.onChange(selfChange, uri);      if (uri == null) {        mUri = Uri.parse("content://sms/inbox");      } else {        mUri = uri;      }      if (mUri.toString().contains("content://sms/raw") || mUri.toString().equals("content://sms")) {        return;      }      LogUtils.d(TAG, "mUri===" + mUri.toString());      AndPermission.with(mActivity)          .permission(Manifest.permission.READ_SMS)          .requestCode(100)          .callback(this)          .rationale(new RationaleListener() {            @Override            public void showRequestPermissionRationale(int requestCode, Rationale rationale) {              AndPermission.rationaleDialog(mActivity, rationale)                  .show();            }          })          .start();    }    @PermissionYes(100)    @SuppressWarnings("unused")    private void getPermissionYes(List<String> grantedPermissions) {      handleSMS();    }    @PermissionNo(100)    @SuppressWarnings("unused")    private void getPermissionNo(List<String> deniedPermissions) {      if (AndPermission.hasPermission(mActivity, Manifest.permission.READ_SMS)) {        handleSMS();      } else {        AndPermission.defaultSettingDialog(mActivity)            .show();      }    }    private void handleSMS() {       /* 按照日期倒序排序 */      Cursor cursor = mActivity.getContentResolver().query(mUri, null, null, null, "date desc");      if (cursor != null) {        if (cursor.moveToFirst()) {//游标移动到first位置          /* 发件人的号码 */          String address = cursor.getString(cursor.getColumnIndex("address"));          /* 短信内容 */          String body = cursor.getString(cursor.getColumnIndex("body"));          LogUtils.d(TAG, "address:" + address + ",body:" + body);          if (!body.contains("验证码")) {            return;          }          /* 利用正则提取验证码（根据实际情况修改） */          String code = getSMSCode(body);          if (code != null) {            if (mSMSCodeListener != null) {              mSMSCodeListener.onResult(code);            }            LogUtils.d(TAG, "code:" + code);          }        }        cursor.close();      }    }    private static String getSMSCode(String msg) {      /*提取正则表达式，需按需修改*/      Pattern p = Pattern.compile("(?<![0-9])([0-9]{6})(?![0-9])");      Matcher m = p.matcher(msg);      if (m.find()) {        LogUtils.d(TAG, m.group());        return m.group(0);      }      return null;    }  }