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    <p>It's caused by this:</p> <blockquote> <pre><code>public void onActivityCreated(Bundle savedInstanceState) { View view = getView(); Spinner spinner = (Spinner) view.findViewById(R.id.ssd_weeksSelectSpinner); spinner.setSelection(getArguments().getInt("SelectWeek")); super.onActivityCreated(savedInstanceState); } </code></pre> </blockquote> <p>It gives you a NullPointerException, because the spinner, it's not already selected and it's empty, when the activity starts... You need to put this, on a <strong>onItemSelected</strong> listener.</p> <pre><code>public class SpinnerActivity extends Activity implements OnItemSelectedListener { ... public void onItemSelected(AdapterView&lt;?&gt; parent, View view, int pos, long id) { // An item was selected. You can retrieve the selected item using // parent.getItemAtPosition(pos) } public void onNothingSelected(AdapterView&lt;?&gt; parent) { // Another interface callback } } </code></pre> <p>See this for more information: <a href="http://developer.android.com/guide/topics/ui/controls/spinner.html#SelectListener" rel="nofollow">http://developer.android.com/guide/topics/ui/controls/spinner.html#SelectListener</a></p> <p>EDIT: You also need to import the "R" java file.. I don't see it on the import lists:</p> <pre><code>import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.os.Bundle; import android.support.v4.app.DialogFragment; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.widget.Spinner; </code></pre> <p>EDIT 2: To add a listener to the spinner do this:</p> <pre><code>Spinner spinner = (Spinner) view.findViewById(R.id.ssd_weeksSelectSpinner); spinner.setOnItemSelectedListener(new OnItemSelectedListener() { public void onItemSelected(AdapterView&lt;?&gt; arg0, View v, int position, long id) { // int position is the element you pressed } }); </code></pre>
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    1. POfindViewById in DialogFragment - NullPointerException
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    1. COYes, in my first post I wrote that I get NullPointerException at `Spinner spinner = (Spinner) view.findViewById(R.id.ssd_weeksSelectSpinner);`. I don't see how I would be able to implement the listener, since I still need to get the view with findViewById(), and when I try to get the view with said method I get NullPointerException. I'm trying to set the selected item for the spinner, so that the user instead of seeing the first item in the spinner (and the array the spinner uses), the user would see (for example) the 4th item in the spinner. I imported R java file, still same issue.
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    2. COI updated the answer.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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