这是我的java文件，我在我的xml文件中使用了onclick函数，因为登录按钮的工作方法相同但注册请不要帮我解决这个问题。
public class signup extends ActionBarActivity {
EditText username, pass, cpass, mail, phn;
String uname, password, confirmpass, email, phone;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.signup);
username = (EditText) findViewById(R.id.username);
pass = (EditText) findViewById(R.id.password);
cpass = (EditText) findViewById(R.id.comfirmpass);
mail = (EditText) findViewById(R.id.email);
phn = (EditText) findViewById(R.id.phone);
Button signupbutton = (Button) findViewById(R.id.signupbutton);
}
//When the send button is clicked
public void sign(View v) {
try {
// CALL validate method
validate();
} catch (Exception ex) {
String error = ex.getMessage();
}
}
//Method to get list value pair and form the query
private String getQuery(List<NameValuePair> params) throws UnsupportedEncodingException {
StringBuilder result = new StringBuilder();
boolean first = true;
for (NameValuePair pair : params) {
if (first)
first = false;
else
result.append("&");
result.append(URLEncoder.encode(pair.getName(), "UTF-8"));
result.append("=");
result.append(URLEncoder.encode(pair.getValue(), "UTF-8"));
}
return result.toString();
}
//Data intialization and Validation
public void validate() {
// Get user defined values
uname = username.getText().toString();
email = mail.getText().toString();
password = pass.getText().toString();
confirmpass = cpass.getText().toString();
phone = phn.getText().toString();
if (password.equals(confirmpass)) {
post();
} else {
Toast.makeText(getBaseContext(), "Password mismatch", Toast.LENGTH_SHORT).show();
//Reset password fields
pass.setText("");
cpass.setText("");
}
}
public void error(boolean flag, String etext) {
if (flag == true) {
Toast.makeText(getBaseContext(), etext, Toast.LENGTH_SHORT).show();
//Code to handle failure
} else {
Toast.makeText(getBaseContext(), etext, Toast.LENGTH_SHORT).show();
setContentView(R.layout.login);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
//Method to post data to webservice
public void post() {
try
{
// Calling async task to get json
new DownloadOperation().execute();
}
catch (Exception e) {
e.printStackTrace();
}
}
private class DownloadOperation extends AsyncTask<Void, Void, String> {
ProgressDialog dialog;
String uname = "";
String email = "";
String password = "";
String confirmpass = "";
String phone = "";
@Override
protected void onPreExecute() {
super.onPreExecute();
// Get user defined values
uname = username.getText().toString();
email = mail.getText().toString();
password = pass.getText().toString();
confirmpass = cpass.getText().toString();
phone = phn.getText().toString();
//Initiate ProgressBar
dialog = ProgressDialog.show(signup.this, "Please Wait", "Registering ...");
}
@Override
protected String doInBackground(Void... params) {
String response = "";
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://rgbpallete.in/led/api/signup");
HttpEntity httpEntity = null;
HttpResponse httpResponse = null;
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(4);
nameValuePairs.add(new BasicNameValuePair("uname", uname));
nameValuePairs.add(new BasicNameValuePair("pass", password));
nameValuePairs.add(new BasicNameValuePair("email", email));
nameValuePairs.add(new BasicNameValuePair("phone", phone));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
httpResponse = httpclient.execute(httppost);
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
httpEntity = httpResponse.getEntity();
response = EntityUtils.toString(httpEntity);
return response;
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String jsonStr) {
super.onPostExecute(jsonStr);
dialog.dismiss();
Log.d("tag", "Result:\n" + jsonStr);
if (jsonStr != null) {
try{
JSONObject jsonObj = new JSONObject(jsonStr);
String message = jsonObj.getString("message");
boolean error = jsonObj.getBoolean("error");
error(error,message);
}
catch (JSONException e) {
e.printStackTrace();
}
}
else {
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
}
}
}
答案 0 :(得分：0)
只需在onCreate()方法
signupbutton.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
Toast.makeText(getApplicationContext(),
"Button is clicked", 3000).show();
///what ever you want to do on signupbtn comes here
//add this try block if you need same functionality as `sign() method`
try {
// CALL validate method
validate();
} catch (Exception ex) {
String error = ex.getMessage();
}
}
});
每次你遇到signupbutton这个方法（听众）都会调用。
或
在您定义xml
signupbutton文件中添加此行
android:onClick="sign"
但对我来说最好的方法是添加clickListener，因为它从java类中清楚地看到了点击按钮时调用的内容。
答案 1 :(得分：0)
您是否在布局目录下的signup.xml中提到了android：onClick =“sign”？请确认。
答案 2 :(得分：0)
我认为您的代码是核心。 添加Log to sign功能：
public void sign(View v) {
Log.e("tag","sign function called");
try {
// CALL validate method
validate();
} catch (Exception ex) {
String error = ex.getMessage();
}
}
如果是corect，则可以显示日志：＆＃34;签名函数称为＆＃34;