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copied!<p>So, to help others, I will post how I (with help from Apple) solved this.</p> <p>In both root and detail view controllers, I added in styles based on user settings:</p> <p>"Warm Tones", "Cool Tones", "Leather" etc. These translate to code like this:</p> <pre><code>switch (styleKey) { case 0: // BASIC fontName = @"Copperplate"; fontSize = 16; selectedBarColor = [UIColor lightGrayColor]; selectedTintColor = [UIColor lightGrayColor]; selectedFontColor = [UIColor darkGrayColor]; backgroundColor = [UIColor whiteColor]; selectedHighlightColor = UITableViewCellSelectionStyleGray; backgroundImage = nil; detailBackgroundImage = nil; break; </code></pre> <p>Then, whenever a color/style/font is called, I used something like this:</p> <pre><code>cell.selectionStyle = selectedHighlightColor; cell.backgroundColor = backgroundColor; </code></pre> <p>This allowed me to change the settings and styles, but I still had to restart the app each time to see the changes.</p> <p>The fix turned out to be simple.</p> <p>Settings the styles changed the values of the constants (e.g. fontColor) - but I wasn't actually changing the fields.</p> <p>So at the end of the switch statements, all I added was something like this:</p> <pre><code>self.tableView.backgroundColor = backgroundColor; self.navigationController.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:backgroundImage]]; self.navigationController.navigationBar.tintColor = selectedBarColor; self.tableView.separatorColor = selectedTintColor; </code></pre> <p>I had to do this in both view controllers.</p> <p>Also, all this code was part of a routine (changeSettings).</p> <p>This method is being observed to look for changes.</p> <p>The way I handled the in-app preference look and feel (a modal VC) was to use the terrific <a href="http://www.inappsettingskit.com/" rel="nofollow">InAppSettingsKit</a>.</p> <p>I hope this helps others. Most of you will find this a no-brainer I expect, but - having not much brain left - it took me two weeks to figure it out.</p>

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