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POHow do I use a CursorLoader to show individual database records one by one
 

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  1. POHow do I use a CursorLoader to show individual database records one by one
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    <p>I'm trying to make a <code>ContentProvider</code> with each record containing a question and corresponding answer. And an Activity showing TextViews of each question and answer and a "Next" button below those TextViews. When the Next button is clicked I would like the next question and answer to show. </p> <p>I'm trying to use a CursorLoader and LoaderManager, because the CursorLoaders keep their data across <code>onStop()</code> and <code>onStart()</code>, and I am trying to learn about <code>CursorLoaders</code> and <code>LoaderManagers</code>.</p> <p>The examples I have found all use <code>setListAdapter()</code>, but I don't want my activity to look like a list. I've tried to go around this by using a <code>SimpleCursorAdapter</code> and using <code>bindView()</code> to my <code>main.xml</code> layout. Not sure that is going to work.</p> <p>If I had a plain Cursor I would use <code>moveToNext()</code>, but for a <code>LoaderManager</code> it seems I have to <code>restartLoader()</code> with a new query. I think creating a new query would cost more time than simply going to the next record with a cursor. Especially since I would have to know the position of the current or next record.</p> <p>So my question is: Can I use a <code>CursorLoader</code> and <code>LoaderManager</code> to go through a database, record by record without having to make a new query for the next record? Or are <code>CursorLoaders</code> and <code>LoaderManagers</code> really only for ListViews?</p> <p>Here is my code so far, I realize it's not much, but I have read and re-read Android's pages on Loaders and LoadManagers.</p> <pre><code> public class Main extends Activity implements LoaderManager.LoaderCallbacks&lt;Cursor&gt;{ SimpleCursorAdapter adapter; String curFilter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); this.adapter = new SimpleCursorAdapter(getApplicationContext(), R.layout.main, null, new String[]{}, new int[]{R.id.questionText,R.id.answerText}, 0); LinearLayout mainLayout = (LinearLayout)findViewById(R.id.mainLayout); this.adapter.bindView(mainLayout, getApplicationContext(), null); this.getLoaderManager().initLoader(0,null, this); Button nextQuestionButton = (Button)this.findViewById(R.id.Nextbutton); nextQuestionButton.setOnClickListener(new OnClickListener() { @Override public void onClick (View v) { } }); } </code></pre>
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