Re: iOS nib weirdness...
Just to provide closure on this thread, I believe I figured out what was happening although not why nor who the exact culprit was. To summarize, all the pieces were set up correctly. The nib file was being compiled in response to changes. The problem appears to be that at some point it stopped being copied into the simulator as part of running it in the debugger. I'm not sure if it was Xcode, the simulator or what. I ended up deleting the app from the simulator, rebuilding everything, and haven't seen the problem since. Very strange and something I haven't run into before. On May 4, 2011, at 7:00 AM, Steve Christensen wrote: I'm working on an app that uses a tab bar. I created a new nib to set up a view+controller and added a new tab item to the main nib that references the controller and the controller's nib, plus I filled in some basic functionality in the view controller. Since it's relevant, the controller's IBOutlets are IBOutlet MyTableView* _resultsTable; IBOutlet UIActivityIndicatorView* _searchActivityIndicator; IBOutlet UISearchBar* _searchBar; When I ran the app and used the new view's UI, I got an unexpected unrecognized selector exception when trying to access a custom method in _resultsTable. When I looked at their values in the debugger, I found that _resultsTable was an instance of UITableView, not MyTableView; and _searchActivityIndicator and _searchBar were both nil. I thought that there could be a missing class issue, but the MyTableView class is implemented since creating a test MyTableView instance in code works just fine. That still doesn't explain the other nil values since all three views were wired up in IB: the view controller shows the views connected to the outlets and the views show themselves as connected. Grasping at straws, I trashed the build results and did a clean build, and even re-launched Xcode, with no difference in behavior. I could very well be doing something dumb but I'm not exactly sure where to look since I've (correctly) set up this same sort of thing before and it worked fine. BTW, I'm using Xcode 3.2.6 + iOS SDK 4.3. Any ideas? steve ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: iOS nib weirdness...
On Fri, 06 May 2011 01:29:10 -0700, Steve Christensen puns...@mac.com said: To summarize, all the pieces were set up correctly. The nib file was being compiled in response to changes. The problem appears to be that at some point it stopped being copied into the simulator as part of running it in the debugger. I'm not sure if it was Xcode, the simulator or what. I ended up deleting the app from the simulator, rebuilding everything, and haven't seen the problem since. Very strange and something I haven't run into before. Thanks for following up on this. The suspense was becoming palpable. I do see this kind of thing often enough that whenever anything mysterious occurs, or just at the end of the day as matter of routine, I tend to clean all targets and reset the simulator, and I have advised others to do the same, both in my book and on this list: http://www.cocoabuilder.com/archive/xcode/293709-app-failure-in-simulator.html m. -- matt neuburg, phd = m...@tidbits.com, http://www.apeth.net/matt/ A fool + a tool + an autorelease pool = cool! Programming iOS 4! http://www.apeth.net/matt/default.html#iosbook___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
iOS nib weirdness...
I'm working on an app that uses a tab bar. I created a new nib to set up a view+controller and added a new tab item to the main nib that references the controller and the controller's nib, plus I filled in some basic functionality in the view controller. Since it's relevant, the controller's IBOutlets are IBOutlet MyTableView* _resultsTable; IBOutlet UIActivityIndicatorView* _searchActivityIndicator; IBOutlet UISearchBar* _searchBar; When I ran the app and used the new view's UI, I got an unexpected unrecognized selector exception when trying to access a custom method in _resultsTable. When I looked at their values in the debugger, I found that _resultsTable was an instance of UITableView, not MyTableView; and _searchActivityIndicator and _searchBar were both nil. I thought that there could be a missing class issue, but the MyTableView class is implemented since creating a test MyTableView instance in code works just fine. That still doesn't explain the other nil values since all three views were wired up in IB: the view controller shows the views connected to the outlets and the views show themselves as connected. Grasping at straws, I trashed the build results and did a clean build, and even re-launched Xcode, with no difference in behavior. I could very well be doing something dumb but I'm not exactly sure where to look since I've (correctly) set up this same sort of thing before and it worked fine. BTW, I'm using Xcode 3.2.6 + iOS SDK 4.3. Any ideas? steve ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: iOS nib weirdness...
Is your viewController a subclass of UITableViewController? Then your nib is not loaded. UITableViewController is broken. It does not keep the contract of initWithNibName:bundle: atze Am 04.05.2011 um 16:00 schrieb Steve Christensen: I'm working on an app that uses a tab bar. I created a new nib to set up a view+controller and added a new tab item to the main nib that references the controller and the controller's nib, plus I filled in some basic functionality in the view controller. Since it's relevant, the controller's IBOutlets are IBOutlet MyTableView* _resultsTable; IBOutlet UIActivityIndicatorView* _searchActivityIndicator; IBOutlet UISearchBar* _searchBar; When I ran the app and used the new view's UI, I got an unexpected unrecognized selector exception when trying to access a custom method in _resultsTable. When I looked at their values in the debugger, I found that _resultsTable was an instance of UITableView, not MyTableView; and _searchActivityIndicator and _searchBar were both nil. I thought that there could be a missing class issue, but the MyTableView class is implemented since creating a test MyTableView instance in code works just fine. That still doesn't explain the other nil values since all three views were wired up in IB: the view controller shows the views connected to the outlets and the views show themselves as connected. Grasping at straws, I trashed the build results and did a clean build, and even re-launched Xcode, with no difference in behavior. I could very well be doing something dumb but I'm not exactly sure where to look since I've (correctly) set up this same sort of thing before and it worked fine. BTW, I'm using Xcode 3.2.6 + iOS SDK 4.3. Any ideas? steve ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/atze%40freeport.de This email sent to a...@freeport.de ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: iOS nib weirdness...
Yes, the table view is typed as MyTableView in the xib. On May 4, 2011, at 7:21 AM, Evadne Wu wrote: Just a wild thought, but could you probably look into the (offending) XIB and make sure that the table view is of a custom class? -ev On May 4, 2011, at 22:00, Steve Christensen wrote: I'm working on an app that uses a tab bar. I created a new nib to set up a view+controller and added a new tab item to the main nib that references the controller and the controller's nib, plus I filled in some basic functionality in the view controller. Since it's relevant, the controller's IBOutlets are IBOutlet MyTableView* _resultsTable; IBOutlet UIActivityIndicatorView* _searchActivityIndicator; IBOutlet UISearchBar* _searchBar; When I ran the app and used the new view's UI, I got an unexpected unrecognized selector exception when trying to access a custom method in _resultsTable. When I looked at their values in the debugger, I found that _resultsTable was an instance of UITableView, not MyTableView; and _searchActivityIndicator and _searchBar were both nil. I thought that there could be a missing class issue, but the MyTableView class is implemented since creating a test MyTableView instance in code works just fine. That still doesn't explain the other nil values since all three views were wired up in IB: the view controller shows the views connected to the outlets and the views show themselves as connected. Grasping at straws, I trashed the build results and did a clean build, and even re-launched Xcode, with no difference in behavior. I could very well be doing something dumb but I'm not exactly sure where to look since I've (correctly) set up this same sort of thing before and it worked fine. BTW, I'm using Xcode 3.2.6 + iOS SDK 4.3. Any ideas? steve ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: iOS nib weirdness...
No, the view controller is a subclass of UIViewController and is being initialized via -initWithCoder:. On May 4, 2011, at 7:47 AM, Alexander Spohr wrote: Is your viewController a subclass of UITableViewController? Then your nib is not loaded. UITableViewController is broken. It does not keep the contract of initWithNibName:bundle: atze Am 04.05.2011 um 16:00 schrieb Steve Christensen: I'm working on an app that uses a tab bar. I created a new nib to set up a view+controller and added a new tab item to the main nib that references the controller and the controller's nib, plus I filled in some basic functionality in the view controller. Since it's relevant, the controller's IBOutlets are IBOutlet MyTableView* _resultsTable; IBOutlet UIActivityIndicatorView* _searchActivityIndicator; IBOutlet UISearchBar* _searchBar; When I ran the app and used the new view's UI, I got an unexpected unrecognized selector exception when trying to access a custom method in _resultsTable. When I looked at their values in the debugger, I found that _resultsTable was an instance of UITableView, not MyTableView; and _searchActivityIndicator and _searchBar were both nil. I thought that there could be a missing class issue, but the MyTableView class is implemented since creating a test MyTableView instance in code works just fine. That still doesn't explain the other nil values since all three views were wired up in IB: the view controller shows the views connected to the outlets and the views show themselves as connected. Grasping at straws, I trashed the build results and did a clean build, and even re-launched Xcode, with no difference in behavior. I could very well be doing something dumb but I'm not exactly sure where to look since I've (correctly) set up this same sort of thing before and it worked fine. BTW, I'm using Xcode 3.2.6 + iOS SDK 4.3. Any ideas? steve ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: iOS nib weirdness...
On 4 May 2011, at 9:00 AM, Steve Christensen wrote: IBOutlet MyTableView* _resultsTable; IBOutlet UIActivityIndicatorView* _searchActivityIndicator; IBOutlet UISearchBar* _searchBar; When I ran the app and used the new view's UI, I got an unexpected unrecognized selector exception when trying to access a custom method in _resultsTable. When I looked at their values in the debugger, I found that _resultsTable was an instance of UITableView, not MyTableView; and _searchActivityIndicator and _searchBar were both nil. Have you verified that 1) you are inspecting the outlets in the debugger at a time after the NIB has loaded and the connections are made? -viewDidLoad would be favorite. 2) Interface Builder knows that your table view is a MyTableView? Check the identity inspector (third tab in the Utility area of Xc4, last tab (as I remember it) in the floating inspector in IB/Xc3. 3) the other two outlets are actually connected? 4) File's Owner in the XIB for the controller is actually of the controller's class? 5) you are not instantiating your controller twice? The MainWindow.xib template for tab-based targets does it; do you do it elsewhere yourself? 6) the class of the controller for that tab (in MainWindow.xib) is declared to be of the right class? — F ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: iOS nib weirdness...
On May 4, 2011, at 9:00 AM, Steve Christensen wrote: I'm working on an app that uses a tab bar. I created a new nib to set up a view+controller and added a new tab item to the main nib that references the controller and the controller's nib, plus I filled in some basic functionality in the view controller. Since it's relevant, the controller's IBOutlets are IBOutlet MyTableView* _resultsTable; IBOutlet UIActivityIndicatorView* _searchActivityIndicator; IBOutlet UISearchBar* _searchBar; First step: Don't prepend your ivars with underscores. From http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/CodingGuidelines/Articles/NamingBasics.html, and I quote: • Avoid the use of the underscore character as a prefix meaning private, especially in methods. Apple reserves the use of this convention. Use by third parties could result in name-space collisions; they might unwittingly override an existing private method with one of their own, with disastrous consequence. You may be seeing one of those disastrous consequences Glenn Andreas gandr...@gandreas.com The most merciful thing in the world ... is the inability of the human mind to correlate all its contents - HPL ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: iOS nib weirdness...
On May 4, 2011, at 8:02 AM, Fritz Anderson wrote: On 4 May 2011, at 9:00 AM, Steve Christensen wrote: IBOutlet MyTableView* _resultsTable; IBOutlet UIActivityIndicatorView* _searchActivityIndicator; IBOutlet UISearchBar* _searchBar; When I ran the app and used the new view's UI, I got an unexpected unrecognized selector exception when trying to access a custom method in _resultsTable. When I looked at their values in the debugger, I found that _resultsTable was an instance of UITableView, not MyTableView; and _searchActivityIndicator and _searchBar were both nil. Have you verified that 1) you are inspecting the outlets in the debugger at a time after the NIB has loaded and the connections are made? -viewDidLoad would be favorite. Yes, I put a breakpoint in -viewDidLoad, as well as just letting it run and crash, and then look at the instance variables in the debugger. At both places, the table is a UITableView and the other two outlets are nil. 2) Interface Builder knows that your table view is a MyTableView? Check the identity inspector (third tab in the Utility area of Xc4, last tab (as I remember it) in the floating inspector in IB/Xc3. Yes, the Type field in the xib file's main window, as well as the Class field in the inspector window, show the type as MyTableView. 3) the other two outlets are actually connected? Yes, the outlets tab in the inspector window shows the file owner/view controller's outlets to be all wired up. And moving the mouse over those items highlights the corresponding views in the main xib window. 4) File's Owner in the XIB for the controller is actually of the controller's class? Yes. 5) you are not instantiating your controller twice? The MainWindow.xib template for tab-based targets does it; do you do it elsewhere yourself? No, my MainWindow.xib has a tab bar controller that has a tab item referencing this view controller and its corresponding nib file. 6) the class of the controller for that tab (in MainWindow.xib) is declared to be of the right class? Yes, and the controller is being instantiated as expected. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: iOS nib weirdness...
On May 4, 2011, at 8:17 AM, glenn andreas wrote: On May 4, 2011, at 9:00 AM, Steve Christensen wrote: I'm working on an app that uses a tab bar. I created a new nib to set up a view+controller and added a new tab item to the main nib that references the controller and the controller's nib, plus I filled in some basic functionality in the view controller. Since it's relevant, the controller's IBOutlets are IBOutlet MyTableView* _resultsTable; IBOutlet UIActivityIndicatorView* _searchActivityIndicator; IBOutlet UISearchBar* _searchBar; First step: Don't prepend your ivars with underscores. From http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/CodingGuidelines/Articles/NamingBasics.html, and I quote: • Avoid the use of the underscore character as a prefix meaning private, especially in methods. Apple reserves the use of this convention. Use by third parties could result in name-space collisions; they might unwittingly override an existing private method with one of their own, with disastrous consequence. You may be seeing one of those disastrous consequences I did think about that. I renamed the ivars to something completely different, rewired the xib and tried it out with no difference in behavior. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
