creating a DialogPreference from XML

Question

I have been attempting to use an android.preference.DialogPreference inflated from XML, but the documentation seems to be missing some essential bits, and I can

Answer 1

First:

Create your own class which extends DialogPreference as bellow:

package com.test.view;

import android.preference.DialogPreference;

public class DialogExPreference extends DialogPreference 
{
    public DialogExPreference(Context oContext, AttributeSet attrs)
    {
        super(oContext, attrs);     
    }
}

Second:

Modify the xml file as bellow:

Then it's OK.