主程序文件
[java]
package com.example.mydialogfragment;

import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Fragment1 dialogFragment = Fragment1.newInstance("Are You Sure Want To Do This?");
dialogFragment.show(getFragmentManager(), "dialog");
}

public void doPositiveClick(){
Log.d("DialogFragmentExample", "User clicks on OK");
}

public void doNegativeClick(){
Log.d("DialogFragmentExample", "User clicks on Cancel");
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

}
[/java]
Fragment1.java
[java]
package com.example.mydialogfragment;

import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.content.DialogInterface;
import android.os.Bundle;

public class Fragment1 extends DialogFragment {
static Fragment1 newInstance(String title){
Fragment1 fragment = new Fragment1();
Bundle args = new Bundle();
args.putString("title", title);
fragment.setArguments(args);
return fragment;
}

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// TODO Auto-generated method stub
String title = getArguments().getString("title");
return new AlertDialog.Builder(getActivity()).setIcon(R.drawable.ic_launcher).setTitle("title").setPositiveButton("OK", new
DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
((MainActivity) getActivity()).doPositiveClick();

}
}).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
((MainActivity) getActivity()).doNegativeClick();
}
}).create();
}
}
[/java]
布局文件
[xml]
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello" />

</LinearLayout>
[/xml]