回复: [android-beginners] !!!!!!!!!!!!!!!! How to update dialog content?

[王心锋]

Dialog only one instance in a activity that is the first click;I think

在 2009-9-5 12:47 PM，"陈增顺" <samuel...@gmail.com> 说：

Hi,  I am trying to reuse a dialog to show different message in different
cases.
  But it seems that Android will cache the content, when the dialog was
created.

  Here is my codes, the dialog just show the content set by the the first
clicked button.
------------------------------------------------------------------------------------------------------------------------------
  package com.mytest;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class myTest extends Activity {
public static String errTitle = "";
 public static String errMessage = "";
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button bt1 = (Button)findViewById(R.id.Button01);
        Button bt2 = (Button)findViewById(R.id.Button02);
        bt1.setOnClickListener(new OnClickListener(){
         public void onClick(View v){
         errTitle = "H1";
         errMessage = "M1";
         showDialog(0);
         }
        });
        bt2.setOnClickListener(new OnClickListener(){
         public void onClick(View v){
         errTitle = "H2";
         errMessage = "M2";
         showDialog(0);
         }
        });
    }

protected Dialog onCreateDialog(int id) {
AlertDialog dialog = null;
 switch (id){
case 0:
dialog =  new AlertDialog.Builder(this)
        .setTitle(errTitle)
        .setMessage(errMessage)
        .setPositiveButton(
 "Confirm",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
 int whichButton) {
dialog.dismiss();
return;
 }
}).create();
}
 return dialog;
}
}


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