How to set a dialog themed activity width to screen width? [duplicate]

This question already has answers here: Android dialog width (6 answers) Closed 9 years ago.

I am followin the method described here to create an EditText input activity. But the view doesn't fill the width of the screen. How can I tell to fit the screen width?

alt text http://img405.imageshack.us/img405/5057/activitythemed.png

<activity android:name="TextEntryActivity" 
          android:label="My Activity" 
          android:theme="@android:style/Theme.Dialog"/>

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:orientation="vertical"
    android:gravity="right"
    android:layout_height="wrap_content">
    <EditText
        android:text="@+id/txtValue"
        android:id="@+id/txtValue"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"></EditText>
    <Button
        android:text="Done"
        android:id="@+id/btnDone"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></Button>
</LinearLayout开发者_开发问答>

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Set android:minWidth and/or android:minHeight in your LinearLayout.

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Another option is to use AlertDialog instead Dialog.

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The short answer is that you can't. A dialog is only meant to wrap it's content. If you want the content to fill the screen you should be using an activity