Sending a message to a Toll free bridge
The documentation states: CFArray is “toll-free bridged” with its Cocoa Foundation counterpart, NSArray. This means that the Core Foundation type is interchangeable in function or method calls with the bridged Foundation object. Therefore, in a method where you see an NSArray * parameter, you can pass in a CFArrayRef Does this also mean: any message you can send to an NSArray, you can send also to an CFArrayRef? NSFont *fo = [ NSFont fontWithName: @Thonburi size: 0 ]; CTFontRef font = (__bridge CTFontRef)fo; CFArrayRef tags = CTFontCopyAvailableTables ( font, 0 ); NSArray *tagsArray = CFBridgingRelease(tags); // next line prints: class __NSCFArray count: 18 NSLog(@%s class %@ count: %lu,__FUNCTION__, [tagsArray class], [tagsArray count]); So sending messages to an CFArrayRef seems to be ok. Or not? But then this line crashes: NSString *tagDescription = [ tagsArray description ]; My mistake? My false assumption? Gerriet. ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Sending a message to a Toll free bridge
I don't believe that the array that CTFontCopyAvailableTables() returns contains CFTypes. So yes, CFArray is bridgeable. But in this case that isn't so useful since the values aren't. On Mon, Nov 25, 2013 at 3:23 AM, Gerriet M. Denkmann gerr...@mdenkmann.dewrote: The documentation states: CFArray is “toll-free bridged” with its Cocoa Foundation counterpart, NSArray. This means that the Core Foundation type is interchangeable in function or method calls with the bridged Foundation object. Therefore, in a method where you see an NSArray * parameter, you can pass in a CFArrayRef Does this also mean: any message you can send to an NSArray, you can send also to an CFArrayRef? NSFont *fo = [ NSFont fontWithName: @Thonburi size: 0 ]; CTFontRef font = (__bridge CTFontRef)fo; CFArrayRef tags = CTFontCopyAvailableTables ( font, 0 ); NSArray *tagsArray = CFBridgingRelease(tags); // next line prints: class __NSCFArray count: 18 NSLog(@%s class %@ count: %lu,__FUNCTION__, [tagsArray class], [tagsArray count]); So sending messages to an CFArrayRef seems to be ok. Or not? But then this line crashes: NSString *tagDescription = [ tagsArray description ]; My mistake? My false assumption? Gerriet. ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/stephen.butler%40gmail.com This email sent to stephen.but...@gmail.com ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
iOS screen physical size (or px density)
Is there yet a supported way of finding out the actual screen size (or equivalently pixel density) on an iOS screen? I have an app, uses autolayout, works fine on iPhone (one storyboard), iPad (another storyboard) and mostly looks fine between iPad and iPad mini. One screen however has a number of test 'cards' on it. On the phone one card == one screen looks great. On a full-sized iPad, about 6 to a page is clear, on a mini however 6 is not ideal and 4, or 3, looks much better and is much clearer to test. That's one of the fairly rare cases where one size doesn't fit all and knowing the actual screen dimensions would make a better user experience. I know there was lots of chat about this when the mini came out, there wasn't anything then and I don't want to do one of the version or device name hacks. Is there yet an API point for this? ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: CVPixelBufferCreateWithPlanarBytes does not execute callback when released
On Sun, Nov 10, 2013 at 10:50 PM, Matthieu Bouron matthieu.bou...@gmail.com wrote: Hello, First of all, sorry in advance if i'm not addressing the right mailing list. I'm currently using the CVPixelBufferRef API and more precisely the CVPixelBufferCreateWithPlanarBytes function so I can use my own video buffers. This function let the user provide a callback so the user can provide a function to free its buffer on release. However I can't get my own callback to be executed which leads to severe memory leaks in my application. You can find attached to this email, an example to reproduce the issue. Note that the first example with CVPixelBufferCreateWithBytes works but the CVPixelBufferCreateWithPlanarBytes one don't. Maybe i'm missing something ? I'm facing this issue on OSX 10.9. To compile the example: gcc -framework CoreVideo test_cvbuffer.m -o test_cvbuffer Thanks in advance for your help. ping [...] ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Sending a message to a Toll free bridge
Le 25 nov. 2013 à 10:23, Gerriet M. Denkmann gerr...@mdenkmann.de a écrit : The documentation states: CFArray is “toll-free bridged” with its Cocoa Foundation counterpart, NSArray. This means that the Core Foundation type is interchangeable in function or method calls with the bridged Foundation object. Therefore, in a method where you see an NSArray * parameter, you can pass in a CFArrayRef Does this also mean: any message you can send to an NSArray, you can send also to an CFArrayRef? NSFont *fo = [ NSFont fontWithName: @Thonburi size: 0 ]; CTFontRef font = (__bridge CTFontRef)fo; CFArrayRef tags = CTFontCopyAvailableTables ( font, 0 ); NSArray *tagsArray = CFBridgingRelease(tags); // next line prints: class __NSCFArray count: 18 NSLog(@%s class %@ count: %lu,__FUNCTION__, [tagsArray class], [tagsArray count]); So sending messages to an CFArrayRef seems to be ok. Or not? But then this line crashes: NSString *tagDescription = [ tagsArray description ]; My mistake? My false assumption? You just hit a corner case. Toll free bridging is supported only for collections of objects compatible with id. CTFontCopyAvailableTables() is one of the very few API that returns a CFArrayRef that contains plain int value, and so cannot be safely converted to NSArray. An other well known corner case is when you try to cast a CFMutableDictionary into a NSMutableDictionary. The later requires that key are copyable objects while the former support other types of keys. Except such cases, you should be able to call any NSArray method on a CFArrayRef. -- Jean-Daniel ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: iOS screen physical size (or px density)
I haven't seen anything that directly returns this information. Given that, it might be better to take the approach of choosing the number of cards that look good on an iPad mini and not worrying so much that there are too few on a full-sized iPad. On Nov 25, 2013, at 4:40 AM, Roland King r...@rols.org wrote: Is there yet a supported way of finding out the actual screen size (or equivalently pixel density) on an iOS screen? I have an app, uses autolayout, works fine on iPhone (one storyboard), iPad (another storyboard) and mostly looks fine between iPad and iPad mini. One screen however has a number of test 'cards' on it. On the phone one card == one screen looks great. On a full-sized iPad, about 6 to a page is clear, on a mini however 6 is not ideal and 4, or 3, looks much better and is much clearer to test. That's one of the fairly rare cases where one size doesn't fit all and knowing the actual screen dimensions would make a better user experience. I know there was lots of chat about this when the mini came out, there wasn't anything then and I don't want to do one of the version or device name hacks. Is there yet an API point for this? ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
I need an entry point for live video grabbing
Hello everyone. This seems a novice question, but I have scanned Apple Mac-Dev-Center site and I dived into all kinds of documentation, to no avail. It seems that some basic functionality that was once beautifully covered by the grand QuickTime API-set has split into so many parts of the system I can't figure out how to do it anymore. I'm re-writing an application I did 12 years ago, on MacOS 9, QuickTime Sequence-Grabber APIs and the first versions of Carbon. My task: - I need to continuously grab frames from an IIDC/DCam camera connected to the Mac via FireWire (iEEE1394), and display them on the application window, scaled, somewhat enhanced (contrast, edges), with a grid overlay drawn on them. Further, I need to allow a user to draw geometrical objects on the live image, and measure distances and curves clicking over the live video view. - I neither need to record video to disk nor to compress the incoming video. Just display it at the best quality and frame-rate I can. The camera is mounted on a Microscope, and the need for live-image is for the operator to be able to focus the microscope with on-screen feedback, or move the objective to search for some microscopic object. The original implementation did this without problems on 1999 Macs, using QuickTime SG (Sequence-Grabber) APIs for grabbing video, QuickDraw for drawing over the actual GWorld's. I also converted the color spaces by hand, and optimized here and there, until I was able to reach 15fps with a 2mega-pixel camera, on a PPC G3 iMac of that time. Now --- not only I can't find any API set that will allow me to grab video from camera, I find so many frameworks involved in Video that I can't find the connection points between them. Embarrassingly complicated and incomplete APIs. I know I'll need Quartz to draw over the image. I know CoreGraphics will be involved in the layering and CoreImage for image-enhancements. I don't know If I need CoreVideo, although it is about manipulating video as it is displayed. I don't know If I need QTKit or AVFoundation, or something else, and where does OpenGL get in the middle. There is NO SAMPLE PROGRAM now, in in the whole of Apple's developer site to simply grab frames from the iSight (internal camera of the Mac) and display them! The last thing I have (BrideOfMungGrab) does not compile anymore with MacOS 10.7 SDK. In the past, the same API was used for grabbing from iSight, DCAM/IIDCS cameras, and DV-Cam --- today I don't know. I absolutely need a pointer, or I'm missing something big as an elephant. Help please? Motti Shneor, --- ceterum censeo microsoftiem delendam esse --- ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: I need an entry point for live video grabbing
You want AVCaptureSession. --Kyle Sluder On Nov 25, 2013, at 9:53 AM, Motti Shneor su...@bezeqint.net wrote: Hello everyone. This seems a novice question, but I have scanned Apple Mac-Dev-Center site and I dived into all kinds of documentation, to no avail. It seems that some basic functionality that was once beautifully covered by the grand QuickTime API-set has split into so many parts of the system I can't figure out how to do it anymore. I'm re-writing an application I did 12 years ago, on MacOS 9, QuickTime Sequence-Grabber APIs and the first versions of Carbon. My task: - I need to continuously grab frames from an IIDC/DCam camera connected to the Mac via FireWire (iEEE1394), and display them on the application window, scaled, somewhat enhanced (contrast, edges), with a grid overlay drawn on them. Further, I need to allow a user to draw geometrical objects on the live image, and measure distances and curves clicking over the live video view. - I neither need to record video to disk nor to compress the incoming video. Just display it at the best quality and frame-rate I can. The camera is mounted on a Microscope, and the need for live-image is for the operator to be able to focus the microscope with on-screen feedback, or move the objective to search for some microscopic object. The original implementation did this without problems on 1999 Macs, using QuickTime SG (Sequence-Grabber) APIs for grabbing video, QuickDraw for drawing over the actual GWorld's. I also converted the color spaces by hand, and optimized here and there, until I was able to reach 15fps with a 2mega-pixel camera, on a PPC G3 iMac of that time. Now --- not only I can't find any API set that will allow me to grab video from camera, I find so many frameworks involved in Video that I can't find the connection points between them. Embarrassingly complicated and incomplete APIs. I know I'll need Quartz to draw over the image. I know CoreGraphics will be involved in the layering and CoreImage for image-enhancements. I don't know If I need CoreVideo, although it is about manipulating video as it is displayed. I don't know If I need QTKit or AVFoundation, or something else, and where does OpenGL get in the middle. There is NO SAMPLE PROGRAM now, in in the whole of Apple's developer site to simply grab frames from the iSight (internal camera of the Mac) and display them! The last thing I have (BrideOfMungGrab) does not compile anymore with MacOS 10.7 SDK. In the past, the same API was used for grabbing from iSight, DCAM/IIDCS cameras, and DV-Cam --- today I don't know. I absolutely need a pointer, or I'm missing something big as an elephant. Help please? Motti Shneor, --- ceterum censeo microsoftiem delendam esse --- ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Best way to put a fixed view in a UITableViewController scene?
Dynamically at runtime, I'd like to put a fixed banner across the top of a UITableViewController scene with some status information. I want this banner to remain fixed at the top, and for the UITableView to live in a frame below it. IB doesn't let you construct this. I wrote this as a bug/enhancement request, and it came back that I should embed a sub view controller in it. But this is incredibly cumbersome, as it forces me to create another view controller to contain it. In the past, at run time (during view instantiation), I've inserted a container view as a parent of my UITableView, and pulled some shenanigans to trick the UITableViewController parent class to refer to the table view while my controller subclass's view property points to the top-level view. This has worked, but I don't like doing end-runs around iOS like that. I could possibly do something with autolayout constraints and and offsets to put my banner view inside my table view, but that seems inelegant, too. What do you guys suggest? -- Rick signature.asc Description: Message signed with OpenPGP using GPGMail ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to put a fixed view in a UITableViewController scene?
On Nov 25, 2013, at 6:08 PM, Rick Mann rm...@latencyzero.com wrote: Dynamically at runtime, I'd like to put a fixed banner across the top of a UITableViewController scene with some status information. I want this banner to remain fixed at the top, and for the UITableView to live in a frame below it. IB doesn't let you construct this. I wrote this as a bug/enhancement request, and it came back that I should embed a sub view controller in it. But this is incredibly cumbersome, as it forces me to create another view controller to contain it. Except that’s precisely what UIViewController expects. Let’s say you have a navigation controller. It is in charge of positioning its child view controllers’ views. You can’t intervene and say “sorry nav controller, but that table view should be 40pt below where you want to put it.” That’s not how view controller containment works. What do you guys suggest? Use an custom container view controller, and watch the WWDC videos on view controller containment to learn why this is the right thing to do. --Kyle Sluder ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to put a fixed view in a UITableViewController scene?
On Nov 25, 2013, at 18:16 , Kyle Sluder k...@ksluder.com wrote: Use an custom container view controller, and watch the WWDC videos on view controller containment to learn why this is the right thing to do. Can I put an unsubclasses UITableViewController in there, and let my container VC be the dataSource and delegate? -- Rick signature.asc Description: Message signed with OpenPGP using GPGMail ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to put a fixed view in a UITableViewController scene?
Dropping a UITableView inside of a UIViewController that conforms to the tableview's delegate and datasource is literally as easy as it sounds ... and immensely more flexible. UITableViewController is convenient but at all necessary. On Nov 25, 2013, at 8:16 PM, Kyle Sluder k...@ksluder.com wrote: On Nov 25, 2013, at 6:08 PM, Rick Mann rm...@latencyzero.com wrote: Dynamically at runtime, I'd like to put a fixed banner across the top of a UITableViewController scene with some status information. I want this banner to remain fixed at the top, and for the UITableView to live in a frame below it. IB doesn't let you construct this. I wrote this as a bug/enhancement request, and it came back that I should embed a sub view controller in it. But this is incredibly cumbersome, as it forces me to create another view controller to contain it. Except that’s precisely what UIViewController expects. Let’s say you have a navigation controller. It is in charge of positioning its child view controllers’ views. You can’t intervene and say “sorry nav controller, but that table view should be 40pt below where you want to put it.” That’s not how view controller containment works. What do you guys suggest? Use an custom container view controller, and watch the WWDC videos on view controller containment to learn why this is the right thing to do. --Kyle Sluder ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/lutherbaker%40gmail.com This email sent to lutherba...@gmail.com ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to put a fixed view in a UITableViewController scene?
On Nov 25, 2013, at 18:40 , Luther Baker lutherba...@gmail.com wrote: UITableViewController is convenient but at all necessary. Is there a missing not in there? It's necessary if you want to use the static and dynamic cell creation stuff in IB. -- Rick signature.asc Description: Message signed with OpenPGP using GPGMail ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to put a fixed view in a UITableViewController scene?
On Nov 25, 2013, at 6:33 PM, Rick Mann rm...@latencyzero.com wrote: On Nov 25, 2013, at 18:16 , Kyle Sluder k...@ksluder.com wrote: Use an custom container view controller, and watch the WWDC videos on view controller containment to learn why this is the right thing to do. Can I put an unsubclasses UITableViewController in there, and let my container VC be the dataSource and delegate? Sure, you could, but why? Then your container VC has to reach in to your table view controller and point its table view at itself. Why not just do the sensible thing and make the container VC responsible for managing the bar and positioning of the table view relative to it, leaving the management of the table view itself to the child table view controller? If you have other objects that need to access the table view controller, it is not hard to expose it as a public property of your container VC. --Kyle Sluder ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to put a fixed view in a UITableViewController scene?
I'm not convinced this is the best way. I can't drag-connect the table view controller's delegate and dataSource in IB when it's done this way. On Nov 25, 2013, at 18:40 , Luther Baker lutherba...@gmail.com wrote: Dropping a UITableView inside of a UIViewController that conforms to the tableview's delegate and datasource is literally as easy as it sounds ... and immensely more flexible. UITableViewController is convenient but at all necessary. On Nov 25, 2013, at 8:16 PM, Kyle Sluder k...@ksluder.com wrote: On Nov 25, 2013, at 6:08 PM, Rick Mann rm...@latencyzero.com wrote: Dynamically at runtime, I'd like to put a fixed banner across the top of a UITableViewController scene with some status information. I want this banner to remain fixed at the top, and for the UITableView to live in a frame below it. IB doesn't let you construct this. I wrote this as a bug/enhancement request, and it came back that I should embed a sub view controller in it. But this is incredibly cumbersome, as it forces me to create another view controller to contain it. Except that’s precisely what UIViewController expects. Let’s say you have a navigation controller. It is in charge of positioning its child view controllers’ views. You can’t intervene and say “sorry nav controller, but that table view should be 40pt below where you want to put it.” That’s not how view controller containment works. What do you guys suggest? Use an custom container view controller, and watch the WWDC videos on view controller containment to learn why this is the right thing to do. --Kyle Sluder ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/lutherbaker%40gmail.com This email sent to lutherba...@gmail.com -- Rick signature.asc Description: Message signed with OpenPGP using GPGMail ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to put a fixed view in a UITableViewController scene?
On Nov 25, 2013, at 18:48 , Kyle Sluder k...@ksluder.com wrote: Sure, you could, but why? Then your container VC has to reach in to your table view controller and point its table view at itself. Why not just do the sensible thing and make the container VC responsible for managing the bar and positioning of the table view relative to it, leaving the management of the table view itself to the child table view controller? If you have other objects that need to access the table view controller, it is not hard to expose it as a public property of your container VC. So, I have basically one property that needs to be reflected at the top of the table. You're saying it's best to make a whole, separate view controller just to do this? This doesn't seem useful at all, especially since in days of old I could easily make a view controller that controlled a view, and manage a table view as one of the many subviews within that. And, I've done it as I described, by ensuring self.tableView always returned the table view, and self.view returned the containing view. -- Rick signature.asc Description: Message signed with OpenPGP using GPGMail ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to put a fixed view in a UITableViewController scene?
On Nov 25, 2013, at 6:51 PM, Rick Mann rm...@latencyzero.com wrote: On Nov 25, 2013, at 18:48 , Kyle Sluder k...@ksluder.com wrote: Sure, you could, but why? Then your container VC has to reach in to your table view controller and point its table view at itself. Why not just do the sensible thing and make the container VC responsible for managing the bar and positioning of the table view relative to it, leaving the management of the table view itself to the child table view controller? If you have other objects that need to access the table view controller, it is not hard to expose it as a public property of your container VC. So, I have basically one property that needs to be reflected at the top of the table. You're saying it's best to make a whole, separate view controller just to do this? If you want to use UITableViewController, yes. Which, as you mentioned, is the only way to get static cell support in a storyboard. This doesn't seem useful at all, especially since in days of old I could easily make a view controller that controlled a view, and manage a table view as one of the many subviews within that. You can still do that if you like. My suggestions held the assumption that you wanted to continue using UITVC. --Kyle Sluder ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to put a fixed view in a UITableViewController scene?
Maybe I am missing something - but I just created a new Tab based project and dropped a UITableView directly on the FirstViewController, under the View node in the expanding tree. If I right click on the UITableView, I see both the delegate and datasource outlets. I can click them and easily drag/connect to the parent First View Controller. Do you mean something else? On Mon, Nov 25, 2013 at 8:48 PM, Rick Mann rm...@latencyzero.com wrote: I'm not convinced this is the best way. I can't drag-connect the table view controller's delegate and dataSource in IB when it's done this way. On Nov 25, 2013, at 18:40 , Luther Baker lutherba...@gmail.com wrote: Dropping a UITableView inside of a UIViewController that conforms to the tableview's delegate and datasource is literally as easy as it sounds ... and immensely more flexible. UITableViewController is convenient but at all necessary. On Nov 25, 2013, at 8:16 PM, Kyle Sluder k...@ksluder.com wrote: On Nov 25, 2013, at 6:08 PM, Rick Mann rm...@latencyzero.com wrote: Dynamically at runtime, I'd like to put a fixed banner across the top of a UITableViewController scene with some status information. I want this banner to remain fixed at the top, and for the UITableView to live in a frame below it. IB doesn't let you construct this. I wrote this as a bug/enhancement request, and it came back that I should embed a sub view controller in it. But this is incredibly cumbersome, as it forces me to create another view controller to contain it. Except that’s precisely what UIViewController expects. Let’s say you have a navigation controller. It is in charge of positioning its child view controllers’ views. You can’t intervene and say “sorry nav controller, but that table view should be 40pt below where you want to put it.” That’s not how view controller containment works. What do you guys suggest? Use an custom container view controller, and watch the WWDC videos on view controller containment to learn why this is the right thing to do. --Kyle Sluder ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/lutherbaker%40gmail.com This email sent to lutherba...@gmail.com -- Rick ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to put a fixed view in a UITableViewController scene?
Yes, thanks for inserting the not. If I drop a UITableView on an existing UIViewController in the default storyboard for a new Tab based application, I can click on the UITableView and select from static cells or dynamic content in the TableView content section in the right hand Utilities pane. Does the UITableViewController provide something more I'm not seeing? On Mon, Nov 25, 2013 at 8:43 PM, Rick Mann rm...@latencyzero.com wrote: On Nov 25, 2013, at 18:40 , Luther Baker lutherba...@gmail.com wrote: UITableViewController is convenient but at all necessary. Is there a missing not in there? It's necessary if you want to use the static and dynamic cell creation stuff in IB. -- Rick ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to put a fixed view in a UITableViewController scene?
On Nov 25, 2013, at 21:11 , Luther Baker lutherba...@gmail.com wrote: Maybe I am missing something - but I just created a new Tab based project and dropped a UITableView directly on the FirstViewController, under the View node in the expanding tree. If I right click on the UITableView, I see both the delegate and datasource outlets. I can click them and easily drag/connect to the parent First View Controller. Do you mean something else? You can't put a UITableViewController into a Container View, and link from the UITVC back to the containing view controller. -- Rick signature.asc Description: Message signed with OpenPGP using GPGMail ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
