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[iPhone] Why so many calls?

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[iPhone] Why so many calls?

Subject: [iPhone] Why so many calls?
From: Phil Curry <email@hidden>
Date: Mon, 26 Oct 2009 09:34:06 -0700

I did this just for grins to see what I came up with. Boy was I surprised!

Here's a listing of the calls made loading a table with 2 sections where the first section has 1 row and the second has 2 rows. Each section has a header title and a footer title.

NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: initWithStyle: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: viewDidLoad NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: viewWillAppear: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: numberOfSectionsInTableView: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: viewDidAppear: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: numberOfSectionsInTableView: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForHeaderInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForHeaderInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForFooterInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForFooterInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:numberOfRowsInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForHeaderInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForHeaderInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForFooterInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForFooterInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:numberOfRowsInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForHeaderInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:cellForRowAtIndexPath: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:cellForRowAtIndexPath: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:cellForRowAtIndexPath: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForHeaderInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForFooterInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForHeaderInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForFooterInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForHeaderInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForFooterInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForHeaderInSection: NavBasedTestBed37232:20b >> Object: <RootViewController: 0x3d1d3a0> Received: tableView:titleForFooterInSection:

To summarize, there are:
9 tableView:titleForHeaderInSection:
8 tableView:titleForFooterInSection:
2 numberOfSectionsInTableView:
2 tableView:numberOfRowsInSection: -// I hope we all agree
3 tableView:cellForRowAtIndexPath: --// these make sense

But can anyone explain all the other duplicate calls?

Waiting with baited breath.
-Phil
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Re: [iPhone] Why so many calls?
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