Databases
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    <p>Things are in fact easy (I'm working with API level 14) and to remember it is I called the listener class <code>SimpleTabListener</code>.</p> <pre><code> public void OnTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { fragmentTransaction.Add(Resource.Id.fragment_container, fragment, typeof(T).Name); } public void OnTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { fragmentTransaction.Remove(fragment); } </code></pre> <p>I have been interested by your problem because I thought tab switching did not work right as android tutorial demonstrates. In fact I made a mistake when updating tab views and lost several hours searching a solution in a wrong direction. I saw your other questions on stackoverflow about tabs, and I'm thinking you were in a similar situation ;-) .</p> <p>EDIT: In fact, it seems that from android 3.2 attach/detach is a better idea when switching tabs as the fragment is kept in FragmentManager and the view removed. Previous methods are then:</p> <pre><code> public void OnTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { // Allows the view to be refreshed fragmentTransaction.Detach(fragment); fragmentTransaction.Attach(fragment); } public void OnTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { if (fragment == null) { fragment = Fragment.Instantiate(context, typeof(T).Namespace.ToLower() + "." + typeof(T).Name); fragmentTransaction.Add(Resource.Id.fragment_container, fragment); } else { fragmentTransaction.Attach(fragment); } } public void OnTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { if (fragment != null) { fragmentTransaction.Detach(fragment); } } </code></pre> <p><a href="http://daniel-codes.blogspot.fr/2012/06/fragment-transactions-reference.html" rel="nofollow">This blog post</a> is very interesting about the subject.</p>
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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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