方法getText()必须从UI线程调用
方法getText()必须从UI线程调用
提问于 2016-03-07 22:20:57
我解决不了这个错误。请帮帮我。我有两种方法：
public boolean isEmailValid(String email) {
boolean flag;
CharSequence inputStr = email.trim();
Pattern pattern = Pattern.compile(EXPRESSION,
Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(inputStr);
if (matcher.matches())
flag = true;
else {
flag = false;
}
return flag;
}
public boolean isFieldsEmpty(String login, String mdp) {
Boolean result = true;
if (login.equals("") || mdp.equals("")) {
result = true;
} else {
result = false;
}
return result;
}
class LoginUser extends AsyncTask<String, String, String> {
@Override
protected void onPreExecute(){
super.onPreExecute();
progressBar.setVisibility(View.VISIBLE);
prefs = getSharedPreferences("PFE_Prefs",MODE_PRIVATE);
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
progressBar.setVisibility(View.GONE);
switch (s) {
case "Champs_vides":
Toast.makeText(getApplicationContext(), "Merci de bien vouloir remplir tous les champs, svp", Toast.LENGTH_SHORT).show();
EmailEditText.setText("");
MdpEditText.setText("");
break;
case "Email_incorrect":
Toast.makeText(getApplicationContext(),"Merci de bien vouloir verifier votre adresse email, svp", Toast.LENGTH_SHORT ).show();
EmailEditText.setText("");
MdpEditText.setText("");
break;
case "Success": //Appel a l'activité Tableau de bord
Intent toDashBord = new Intent(getApplicationContext(), DashBoardActivity.class);
startActivity(toDashBord);
LoginActivity.this.finish();
break;
case "Echoué" :
Toast.makeText(getApplicationContext(),"Merci de bien vouloir verifier votre connexion, svp", Toast.LENGTH_SHORT ).show();
EmailEditText.setText("");
MdpEditText.setText("");
break;
}
}在方法上，doInBackground
protected String doInBackground(String... params) {
int success = 0;
String result = "";
JSONObject json ;
WebCalls webCalls = new WebCalls();
JSONObject jsonUser;
User tempUser ;
if (isFieldsEmpty(EmailEditText.getText().toString(),MdpEditText.getText().toString())){
result = "Empty_Field";
return result ;
}else if (!isEmailValid(EmailEditText.getText().toString().trim())){
result = "Wrong_mail";
return result ;
}
return null;
}我的问题是在EmailEditText.getText().toString()中，我得到了以下错误：
Method getText() must called from UI thread, currently inferred thread is workerStack Overflow用户
发布于 2016-03-07 23:12:46
错误存在于方法doInBackground()中
您正在调用两个对象EmailEditText和MdpEditText，它们是另一个线程中UI线程的一部分。因此，您被要求从UI线程调用"EmailEditText.getText().toString()“。
你想要做的是，从你发布的片段中看不清楚。
但是这个例子可能有帮助:在您的OnCreate()中有这样的东西
protected void onCreate(Bundle savedInstanceState) {
...
String parameters= new String[2];//make this global if you aren't calling your AsyncTask in onCreate()
parameters[1]=EmailEditText.getText().toString();
parameters[2]=MdpEditText.getText().toString();
...
}然后这样打电话给你的AsyncTask：
new YourTask().execute(parameters);虽然AsyncTask的声明如下所示：
private class YourTask extends AsyncTask<String, Void, String> {
...
@Override
protected String doInBackground(String... params) {
String email = params[0];
String mdp= params[1];
int success = 0;
String result = "";
JSONObject json ;
WebCalls webCalls = new WebCalls();
JSONObject jsonUser;
User tempUser ;
if (isFieldsEmpty(email,mdp)){
result = "Empty_Field";
return result ;
}else if (!isEmailValid(email.trim())){
result = "Wrong_mail";
return result ;
}
return null;
}
...
}希望这能帮上忙！
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/35855277
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