2
Привет, я пытаюсь использовать задачу Async, чтобы использовать базовую систему входа в систему, которую я получил из учебника (только для изучения). У меня есть проблемы. Чтобы перебрать android.os.networkexception, я использую async, но я уверен, что я использую его совершенно неправильно в этой ситуации. Вот код:android login get errors with async task
package com.example.toknapp;
import java.util.ArrayList;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class login2 extends Activity {
EditText un;
TextView error;
Button ok;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
un=(EditText)findViewById(R.id.et_un);
ok=(Button)findViewById(R.id.btn_login);
error=(TextView)findViewById(R.id.tv_error);
ok.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
GetData task = new GetData();
task.execute();
}
});
}
private class GetData extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... urls) {
ArrayList<NameValuePair> postParameters = new ArrayList<NameValuePair>();
postParameters.add(new BasicNameValuePair("username", un.getText().toString()));
//String valid = "1";
String response = null;
try {
response = CustomHttpClient.executeHttpPost("http://tokn.me/android_merchant_login.php", postParameters);
String res=response.toString();
// res = res.trim();
res= res.replaceAll("\\s+","");
//error.setText(res);
if(res.equals("1"))
error.setText("Correct Username or Password");
else
error.setText("Sorry!! Incorrect Username or Password");
} catch (Exception e) {
un.setText(e.toString());
}
return response;
}
}
}
LogCat:
E/AndroidRuntime(1188): FATAL EXCEPTION: AsyncTask #1
E/AndroidRuntime(1188): java.lang.RuntimeException: An error occured while exec
uting doInBackground()
E/AndroidRuntime(1188): at android.os.AsyncTask$3.done(AsyncTask.java:27
8)
E/AndroidRuntime(1188): at java.util.concurrent.FutureTask$Sync.innerSet
Exception(FutureTask.java:273)
E/AndroidRuntime(1188): at java.util.concurrent.FutureTask.setException(
FutureTask.java:124)
E/AndroidRuntime(1188): at java.util.concurrent.FutureTask$Sync.innerRun
(FutureTask.java:307)
E/AndroidRuntime(1188): at java.util.concurrent.FutureTask.run(FutureTas
k.java:137)
E/AndroidRuntime(1188): at android.os.AsyncTask$SerialExecutor$1.run(Asy
ncTask.java:208)
E/AndroidRuntime(1188): at java.util.concurrent.ThreadPoolExecutor.runWo
rker(ThreadPoolExecutor.java:1076)
E/AndroidRuntime(1188): at java.util.concurrent.ThreadPoolExecutor$Worke
r.run(ThreadPoolExecutor.java:569)
E/AndroidRuntime(1188): at java.lang.Thread.run(Thread.java:856)
E/AndroidRuntime(1188): Caused by: android.view.ViewRootImpl$CalledFromWrongThr
eadException: Only the original thread that created a view hierarchy can touch i
ts views.
E/AndroidRuntime(1188): at android.view.ViewRootImpl.checkThread(ViewRoo
tImpl.java:3903)
E/AndroidRuntime(1188): at android.view.ViewRootImpl.invalidateChild(Vie
wRootImpl.java:708)
E/AndroidRuntime(1188): at android.view.ViewRootImpl.invalidateChildInPa
rent(ViewRootImpl.java:757)
E/AndroidRuntime(1188): at android.view.ViewGroup.invalidateChild(ViewGr
oup.java:4006)
E/AndroidRuntime(1188): at android.view.View.invalidate(View.java:8432)
E/AndroidRuntime(1188): at android.widget.TextView.invalidateCursor(Text
View.java:4318)
E/AndroidRuntime(1188): at android.widget.TextView.spanChange(TextView.j
ava:7669)
E/AndroidRuntime(1188): at android.widget.TextView$ChangeWatcher.onSpanA
dded(TextView.java:8018)
E/AndroidRuntime(1188): at android.text.SpannableStringBuilder.sendSpanA
dded(SpannableStringBuilder.java:898)
E/AndroidRuntime(1188): at android.text.SpannableStringBuilder.setSpan(S
pannableStringBuilder.java:614)
E/AndroidRuntime(1188): at android.text.SpannableStringBuilder.setSpan(S
pannableStringBuilder.java:520)
E/AndroidRuntime(1188): at android.text.Selection.setSelection(Selection
.java:76)
E/AndroidRuntime(1188): at android.text.Selection.setSelection(Selection
.java:87)
E/AndroidRuntime(1188): at android.text.method.ArrowKeyMovementMethod.in
itialize(ArrowKeyMovementMethod.java:302)
E/AndroidRuntime(1188): at android.widget.TextView.setText(TextView.java
:3243)
E/AndroidRuntime(1188): at android.widget.TextView.setText(TextView.java
:3109)
E/AndroidRuntime(1188): at android.widget.EditText.setText(EditText.java
:78)
E/AndroidRuntime(1188): at android.widget.TextView.setText(TextView.java
:3084)
E/AndroidRuntime(1188): at com.example.toknapp.login2$GetData.doInBackgr
ound(login2.java:61)
E/AndroidRuntime(1188): at com.example.toknapp.login2$GetData.doInBackgr
ound(login2.java:1)
E/AndroidRuntime(1188): at android.os.AsyncTask$2.call(AsyncTask.java:26
4)
E/AndroidRuntime(1188): at java.util.concurrent.FutureTask$Sync.innerRun
(FutureTask.java:305)
E/AndroidRuntime(1188): ... 5 more
W/ActivityManager( 85): Force finishing activity com.example.toknapp/.toknap
p
W/WindowManager( 85): Failure taking screenshot for (180x300) to layer 21015
W/InputManagerService( 85): Starting input on non-focused client com.android.i
[email protected] (uid=10040 pid=1188)
W/IInputConnectionWrapper(1188): showStatusIcon on inactive InputConnection
W/NetworkManagementSocketTagger( 85): setKernelCountSet(10004, 1) failed with
errno -2
W/NetworkManagementSocketTagger( 85): setKernelCountSet(10040, 0) failed with
errno -2
I/Process (1188): Sending signal. PID: 1188 SIG: 9
W/InputManagerService( 85): Window already focused, ignoring focus gain of: co
[email protected]
I/ActivityManager( 85): Process com.example.toknapp (pid 1188) has died.
W/BinderNative( 85): Uncaught exception from death notification
W/BinderNative( 85): java.lang.IllegalArgumentException: Service not registere
d: com.andr[email protected]417c4
b78
W/BinderNative( 85): at android.app.LoadedApk.forgetServiceDispatcher(LoadedA
pk.java:888)
W/BinderNative( 85): at android.app.ContextImpl.unbindService(ContextImpl.jav
a:1147)
W/BinderNative( 85): at com.android.server.TextServicesManagerService$SpellCh
eckerBindGroup.cleanLocked(TextServicesManagerService.java:592)
W/BinderNative( 85): at com.android.server.TextServicesManagerService$SpellCh
eckerBindGroup.removeListener(TextServicesManagerService.java:575)
W/BinderNative( 85): at com.android.server.TextServicesManagerService$Interna
lDeathRecipient.binderDied(TextServicesManagerService.java:662)
W/BinderNative( 85): at android.os.BinderProxy.sendDeathNotice(Binder.java:41
7)
W/BinderNative( 85): at dalvik.system.NativeStart.run(Native Method)
ошибки? сколько? которые они? разместите логарифм. –
dont set text while in doInBackground(), удалите его оттуда, если вы хотите установить текст, а затем измените его в postExecute() –