DIalogPreference Problem
<p>I am using preferences, and this snippet of XML always causes my application to stop unexpectly when I hit a menu settings button which is supposed to display a list of preferences. I can use CheckBoxPreference and ListPreference successfully but I cannot use DialogPreference. I cannot seem to find an example XML snippet anywhere.</p>

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<p>I need this dialog to collect a phone number in a string.</p>
