当我把线程去掉的时候对话框就可以显示?
代码如下:
package org.yuqidi.hrsystem;
import static org.yuqidi.hrsystem.Util.*;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.os.Looper;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Toast;
public class LoginActivity extends Activity {
CheckBox checkBox;
Button btLogin;
Button btReturn;
ProgressDialog pd;
Connector connector;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
checkBox=(CheckBox)findViewById(R.id.cbRemember);
btLogin=(Button)findViewById(R.id.btLogin2);
btLogin.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
pd = ProgressDialog.show(LoginActivity.this, "请稍候", "正在连接服务器...", true, true);
// try {
// Thread.sleep(5000);
login();
// } catch (InterruptedException e) {
// e.printStackTrace();
// }
}
});
btReturn=(Button)findViewById(R.id.btReturn);
btReturn.setOnClickListener(new View.OnClickListener(){
Intent intent;
public void onClick(View v) {
android.os.Process.killProcess(android.os.Process.myPid());
intent=new Intent(LoginActivity.this,org.yuqidi.hrsystem.indexActivity.class);
startActivity(intent);
finish();
}
});
}
public void login() {
new Thread(){
public void run() {
Looper.prepare();
try{
if(connector==null){
connector=new Connector(ADDRESS, PORT);
}
EditText etUid=(EditText)findViewById(R.id.etUid);
EditText etPwd=(EditText)findViewById(R.id.etPwd);
String uid=etUid.getEditableText().toString().trim();
String pwd=etPwd.getEditableText().toString().trim();
String message="<#LOGIN#>"+uid+"|"+pwd;
System.out.println(message);
connector.dout.writeUTF(message);
int serverMessage = connector.din.readInt();
pd.dismiss();
showDialog(serverMessage);
System.out.println("+++++++++1"+serverMessage);
if(serverMessage==0){
showDialog(serverMessage);
Looper.loop();
Looper.myLooper().quit();
}else{
System.out.println("+++++++++1"+serverMessage);
showDialog(2);
System.out.println("+++++++++1"+"serverMessage");
}
}catch (Exception e) {
e.printStackTrace();
}
}
}.start();
}
protected Dialog onCreateDialog(int id) {
Dialog dialog = null;
Builder builder=null;
switch(id){
case 0:
builder = new AlertDialog.Builder(this);
builder.setIcon(R.drawable.app_icon);
builder.setMessage(R.string.loginfail);
builder.setPositiveButton(R.string.btnOk, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setNegativeButton(R.string.btnCancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
dialog = builder.create();
break;
case 1:
builder = new AlertDialog.Builder(this);
builder.setIcon(R.drawable.app_icon);
builder.setMessage(R.string.alertepl);
builder.setPositiveButton(R.string.btnOk, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setNegativeButton(R.string.btnCancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
dialog = builder.create();
break;
case 2:
builder = new AlertDialog.Builder(this);
builder.setIcon(R.drawable.app_icon);
builder.setMessage(R.string.alertmng);
builder.setPositiveButton(R.string.btnOk, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setNegativeButton(R.string.btnCancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
dialog = builder.create();
break;
case 3:
builder = new AlertDialog.Builder(this);
builder.setIcon(R.drawable.app_icon);
builder.setMessage(R.string.empty);
builder.setPositiveButton(R.string.btnOk, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setNegativeButton(R.string.btnCancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
dialog = builder.create();
break;
default:
break;
}
return dialog;
}
protected void onDestroy() {
if(connector != null){
connector.sayBye();
}
super.onDestroy();
}
}