Checked API document just now.
Should override the onPrepareDialog(int id, Dialog dialog) to prepare a
managed dialog before it is being shown.
The following extra codes for my test program makes it works perfectly:
----------------------------------------------------------------------------------
protected void onPrepareDialog(int id, Dialog dialog){
((AlertDialog)dialog).setTitle(errTitle);
((AlertDialog)dialog).setMessage(errMessage);
}
2009/9/5 王心锋 <kyowxf2...@gmail.com>
> 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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