发送按钮是发送数据，如果在安卓编辑文本内部有错误

Question

我使用了两个编辑文本框，我已经对电子邮件的编辑文本框和确认电子邮件地址进行了验证。我使用了文本匹配器，验证对我来说很好。当我检查时没有问题。当我单击发送按钮时，在编辑文本中输入的数据将进入数据库更正错误后，任何文本框中都有错误，必须部署输入数据库的数据，否则必须禁用该按钮我需要输入一些东西来阻止发送按钮

我已经在这里对edittext3和edittext4进行了验证，所以如果这个按钮中有任何错误，必须禁用我必须包含的地方

send.setEnabled(false);
send.setEnabled(true);

我必须在这个代码中包括上述方法

edittext3.addTextChangedListener(new TextWatcher() {
        @Override
        public void onTextChanged(CharSequence s, int start, int before,
                int count) {
        }
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count,
                int after) {
        }
        @Override
        public void afterTextChanged(Editable s) {
            Is_Valid_Email_Address(edittext3);
        }
        public void Is_Valid_Email_Address(EditText edittext3) {
            if (edittext3.getText().toString() == null) {
                edittext3.setError("Invalid Email Address");
                valid_email = null;
            } else if (isEmailValid(edittext3.getText().toString()) == false) {
                edittext3.setError("Invalid Email Address");
                valid_email = null;
            } else if(edittext3.length() == 0 || edittext3.equals("") || edittext3 == null || "".equals(edittext3.getText().toString())) {
                valid_email = null;
            }else {
                valid_email = edittext3.getText().toString();
            }
        }
    });
    edittext4.addTextChangedListener(new TextWatcher() {
        @Override
        public void onTextChanged(CharSequence s, int start, int before,
                int count) {

        }
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count,
                int after) {

        }
        @Override
        public void afterTextChanged(Editable s) {
            Is_Valid_Confirm_Address(edittext4);
        }

        public void Is_Valid_Confirm_Address(EditText edittext4) {
            if (edittext4.getText().toString() == null) {
                edittext4.setError("Invalid Email Address");
                valid_confirm = null;
            } else if (isEmailValid(edittext4.getText().toString()) == false) {
                edittext4.setError("Invalid Email Address");
                valid_confirm = null;
            } else if (edittext4.getText().toString().equals(edittext3.getText().toString())) {
                valid_confirm = edittext4.getText().toString();
            } else if(edittext4.length() == 0 || edittext4.equals("") || edittext4 == null || "".equals(edittext4.getText().toString())) {
                valid_confirm = null;
            } else {
                edittext4.setError("Confirm Email is Not Matching");
                valid_confirm = null;
            } 
        }
    });

//如果有任何错误，则按钮必须变为禁用或启用，才能将其添加到数据库中

    Button send= (Button)findViewById(R.id.send_email);
    send.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
        String email = edittext3.getText().toString();
        String confirm = edittext4.getText().toString();

        ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
            nameValuePairs.add(new BasicNameValuePair("email_address",email));
            nameValuePairs.add(new BasicNameValuePair("confirm_email_address",confirm));
            try
            {
                HttpClient httpclient = new DefaultHttpClient();
                HttpPost httppost = new HttpPost("http://192.168.1.132/Android_App/Sendata.php");
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                HttpResponse response = httpclient.execute(httppost); 
                HttpEntity entity = response.getEntity();
                is = entity.getContent();
                Log.e("log_tag", "connection success ");
                Toast.makeText(getApplicationContext(), "contact you shortly.", Toast.LENGTH_LONG).show();
            }
            catch(Exception e)
            {
                Log.e("log_tag", "Error in http connection "+e.toString());
                Toast.makeText(getApplicationContext(), "Connection fail", Toast.LENGTH_SHORT).show();
            }
            try
            {
                BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
                StringBuilder sb = new StringBuilder();
                String line = null;
                while ((line = reader.readLine()) != null) 
                {
                        sb.append(line + "n");
                        Intent i = new Intent(getBaseContext(),SecondActivity.class);
                        startActivity(i);
                }
                is.close();
                result=sb.toString();
            }
            catch(Exception e)
            {
               Log.e("log_tag", "Error converting result "+e.toString());
            }
            try
            {   
                    JSONObject json_data = new JSONObject(result);
                    CharSequence w= (CharSequence) json_data.get("result");
                    Toast.makeText(getApplicationContext(), w, Toast.LENGTH_SHORT).show();
            }
            catch(JSONException e)
            {
                    Log.e("log_tag", "Error parsing data "+e.toString());
                    Toast.makeText(getApplicationContext(), "JsonArray fail", Toast.LENGTH_SHORT).show();
            }
        }
    });
}
private boolean isEmailValid(String email) {
    return android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches();
}

有人知道吗？请提前帮我谢谢

Answer 1

public void afterTextChanged(Editable s) {
        if(Is_Valid_Email_Address(edittext3.getText().toString())){
              send.setEnabled(true); 
        }else{
              send.setEnabled(false); 
        }
    }

也许试试这个？也将其应用于edittext4。

试试这个方法。