利用 AlertDialog.Builder 創建包含編輯文本視圖 (EditText) 的對話框

package com.AndroidEditDialog;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class AndroidEditDialog extends Activity {
 
 Button btnEdit;
 TextView textOut;
 
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.main);
  btnEdit = (Button)findViewById(R.id.edit);
  textOut = (TextView)findViewById(R.id.textout);
  
  btnEdit.setOnClickListener(btnEditOnClickListener);
 }

 private Button.OnClickListener btnEditOnClickListener
 = new Button.OnClickListener(){

  @Override
  public void onClick(View arg0) {
   // TODO Auto-generated method stub
   
   AlertDialog.Builder editDialog = new AlertDialog.Builder(AndroidEditDialog.this);
   editDialog.setTitle("--- Edit ---");
   
   final EditText editText = new EditText(AndroidEditDialog.this);
   editText.setText(textOut.getText());
   editDialog.setView(editText);
   
   editDialog.setPositiveButton("OK", new DialogInterface.OnClickListener() {
    // do something when the button is clicked
    public void onClick(DialogInterface arg0, int arg1) {
     textOut.setText(editText.getText().toString());
     }
    });
   editDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
          // do something when the button is clicked
    public void onClick(DialogInterface arg0, int arg1) {
    //...
     }
    });
   editDialog.show();
   
  }};
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 >
<TextView
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:text="@string/hello"
 />
<Button
 android:id="@+id/edit"
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:text="Edit"
 />
<TextView
 android:id="@+id/textout"
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:text="You can change it"
 />
</LinearLayout>