Databases
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Postsdbo
PO
 

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  1. PO
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    <p>I found out the name of the exception from the stack trace, but it's all I could get, still no clue to what's causing it and where it happens. So here's what I'm doing (lstItems is a ListView control in my activity:</p> <pre><code>cursor = adapter.fetchAllItems(); //that's a simple database adapter int a = cursor.getCount(); if (cursor.getCount()!=0) { startManagingCursor(cursor); String[] from = new String[] { adapter.KEY_NAME}; int[] to = new int[] { R.id.listView1 }; for (int i = 0; i &lt; cursor.getCount(); i++) { SimpleCursorAdapter cursorAdapter = new SimpleCursorAdapter(this, R.layout.manageItems, cursor, from, to); lstItems.setAdapter(cursorAdapter); //that's what causing the exception, if I comment this line out, everything's fine, but the list is not updated either. } } </code></pre> <p>So the code runs, and when the activity with the updated ListView is supposed to show up, the debugger stops with the following stack trace: </p> <pre><code>Thread [&lt;1&gt; main] (Suspended (exception IllegalStateException)) ListView.layoutChildren() line: 1662 ListView(AbsListView).onLayout(boolean, int, int, int, int) line: 1147 ListView(View).layout(int, int, int, int) line: 7035 LinearLayout.setChildFrame(View, int, int, int, int) line: 1249 LinearLayout.layoutVertical() line: 1125 LinearLayout.onLayout(boolean, int, int, int, int) line: 1042 LinearLayout(View).layout(int, int, int, int) line: 7035 FrameLayout.onLayout(boolean, int, int, int, int) line: 333 FrameLayout(View).layout(int, int, int, int) line: 7035 LinearLayout.setChildFrame(View, int, int, int, int) line: 1249 LinearLayout.layoutVertical() line: 1125 LinearLayout.onLayout(boolean, int, int, int, int) line: 1042 LinearLayout(View).layout(int, int, int, int) line: 7035 PhoneWindow$DecorView(FrameLayout).onLayout(boolean, int, int, int, int) line: 333 PhoneWindow$DecorView(View).layout(int, int, int, int) line: 7035 ViewRoot.performTraversals() line: 1045 ViewRoot.handleMessage(Message) line: 1727 ViewRoot(Handler).dispatchMessage(Message) line: 99 Looper.loop() line: 123 ActivityThread.main(String[]) line: 4627 Method.invokeNative(Object, Object[], Class, Class[], Class, int, boolean) line: not available [native method] Method.invoke(Object, Object...) line: 521 ZygoteInit$MethodAndArgsCaller.run() line: 868 ZygoteInit.main(String[]) line: 626 NativeStart.main(String[]) line: not available [native method] </code></pre> <p>I figured that happens because I'm doing something wrong with the UI thread, but I have no idea what. I'm not using multiple threads at all.</p>
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    1. POHow do I know what the exception is in Eclipse, Android SDK?
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    1. UStaralex
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    1. COAdd this extra information to your question, instead of posting it as an answer.
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      1. USGraham Borland
 

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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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