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PONSlogging and NSString Conundrum
 

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    <p>I am still rather new at this, seeing as this is my first project and all. But I have complete faith in the stack overflow community as you all have helped me before.</p> <p>I have a rather interesting conundrum for you all. I call the standard: </p> <pre><code>- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { </code></pre> <p>in my tableview to have it push a view controller, and update the value of string (method below)(The change in string is NSLogged by a different method):</p> <pre><code>- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { appDelegate.baseURL = nil; musicInteractionController = [[xSheetMusicViewController alloc]init]; if (indexPath.row == 0 &amp;&amp; indexPath.section == 0) { appDelegate.baseURL = @"mussette.pdf"; [self.navigationController pushViewController:musicInteractionController animated:YES]; } else if (indexPath.row == 1 &amp;&amp; indexPath.section == 0) { appDelegate.baseURL = @"Importing PDF's.pdf"; [self.navigationController pushViewController:musicInteractionController animated:YES]; } else if (indexPath.row == 2 &amp;&amp; indexPath.section == 0) { appDelegate.baseURL = @"Example.pdf"; [self.navigationController pushViewController:musicInteractionController animated:YES]; } else if (indexPath.section == 1) { appDelegate.baseURL = [[ivContentsList objectAtIndex:indexPath.row]lastPathComponent]; [self.navigationController pushViewController:musicInteractionController animated:YES]; } [musicInteractionController release]; musicInteractionController = nil; appDelegate.baseURL = nil; </code></pre> <p>}</p> <p>My code has no errors, warnings, or memory leaks in it. And the change in string it read by a new view controller that updates the view to display the current PDF. It works correctly, but keeps displaying the same PDF over and over again, despite a change in the NSLog value. If it helps, I am using the iOS simulator, and not a real device.</p> <p>Here is a sample NSLog after pushing the first cell, then the second (ignore the nil view controller log, I think it's a bug. Also, the down Log is from a private method in the second view, so it can also be ignored. And a bonus to those who can resolve the CGContextClipToRect: invalid context 0x0 warning):</p> <pre><code> 2011-09-15 16:24:23.731 SheetMuse[43068:b603] value - (null) Sep 15 16:24:27-MacBook SheetMuse[43068] &lt;Error&gt;: CGContextClipToRect: invalid context 0x0 Sep 15 16:24:27-MacBook SheetMuse[43068] &lt;Error&gt;: CGContextGetClipBoundingBox: invalid context 0x0 Sep 15 16:24:27-MacBook SheetMuse[43068] &lt;Error&gt;: CGContextConcatCTM: invalid context 0x0 Sep 15 16:24:27-MacBook SheetMuse[43068] &lt;Error&gt;: CGBitmapContextCreateImage: invalid context 0x0 2011-09-15 16:24:27.050 SheetMuse[43068:b603] Application tried to push a nil view controller on target &lt;UINavigationController: 0x4c5e220&gt;. 2011-09-15 16:24:27.069 SheetMuse[43068:b603] value - mussette.pdf 2011-09-15 16:24:27.072 SheetMuse[43068:b603] Application tried to push a nil view controller on target &lt;UINavigationController: 0x4e74620&gt;. 2011-09-15 16:24:27.097 SheetMuse[43068:b603] value - mussette.pdf 2011-09-15 16:24:33.944 SheetMuse[43068:b603] Down Sep 15 16:24:36 MacBook-SheetMuse[43068] &lt;Error&gt;: CGContextClipToRect: invalid context 0x0 Sep 15 16:24:36 MacBook-SheetMuse[43068] &lt;Error&gt;: CGContextGetClipBoundingBox: invalid context 0x0 Sep 15 16:24:36 MacBook-SheetMuse[43068] &lt;Error&gt;: CGContextConcatCTM: invalid context 0x0 Sep 15 16:24:36 MacBook-SheetMuse[43068] &lt;Error&gt;: CGBitmapContextCreateImage: invalid context 0x0 2011-09-15 16:24:36.587 SheetMuse[43068:b603] Application tried to push a nil view controller on target &lt;UINavigationController: 0x4c54bf0&gt;. 2011-09-15 16:24:36.588 SheetMuse[43068:b603] value - Importing PDF's.pdf 2011-09-15 16:24:36.590 SheetMuse[43068:b603] Application tried to push a nil view controller on target &lt;UINavigationController: 0x4c50790&gt;. 2011-09-15 16:24:36.591 SheetMuse[43068:b603] value - Importing PDF's.pdf </code></pre> <p>Thanks in advance.</p>
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    1. COIn xSheetMusicViewController, what method does it read appDelegate.baseURL in and load the pdf? Show that method.
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    2. COSorry for the late response. appDelegate.baseURL is loaded in the next view's -(id)init method as a CFURLRef from an NSURL.
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    3. COIn the code above, baseURL is set _after_ init is called so when init runs, it will be reading the previous value.
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