xcode4

问题 I'm having some trouble with Managed Objects... imagine that. Here is one real doozy, maybe someone can help. So I have a managed object class called "Format" which is an entity. Anyway, it has a property called "slot" that's an NSNumber. Now the number can have values from zero to four, but if it does not have a value then I want the NSNumber object to be equal to "nil" as opposed to zero. I wasn't having any luck with that since evidently being zero is the same as being "nil." Ugh. (Is

问题 So I am submitting my First App. I have followed various guides and documents to the letter and managed to upload it to the itunes app store one time. It came back as invalid binary relating to an icon path. Fair enough... I applied what I felt was a fix then BANG! Everytime I tried to upload it since then it comes back with an error, this error to be exact.: warning: Unable to extract codesigning entitlements from your application. Please make sure DoorStop is a valid Mach executable that's

问题 as in question, How can I see compile output of xcode4? Thank you 回答1: you could see the build/Compile output in the issue navigator and log navigator Follow the below simple step to go to the issue navigator Open XCode 4, Build your project, then press command + 4 for issue navigator . (there are two filter here " By File " and " By Type ") press command + 7 for log navigator (contain compile information for all day build). 回答2: Press MAC key (command) + shift + B to show build output. 回答3:

问题 I'm trying to regroup several applications I have in the same XCode project. So I created a new XCode project and added two targets, and import the source code of my two apps in one of the targets. The problem is that I have classes with the same name in the two applications. When I compile the first one, no problem. But if I try to compile the second target, I have lots of issues like this : In file included from /Users/administrateur/Documents/Merged_iPhone_Projects/Target2/Classes

问题 In XCode 4, if I change the font of an NSTextField its frame does not update to accommodate the change. Further, under "Frame layout" its height is grayed-out and unalterable. Is there a quick way to adjust the frame of the NSTextField to fit its font choice without having to resort to a programmatic adjustment? Hopefully I have overlooked a simple control in Xcode 4. 回答1: I found a somewhat awkward solution: by setting the "Line break" to "Word wrap" I was allowed to adjust the the height of

问题 I want to release an update to my ad hoc build that exists on my various devices? UPDATE: I don't mind doing it manually for each device my question is, how do I update the app's without deleting them first off the device. i.e. I want to keep the database on the device in tact...itunes doesn't allow this. 回答1: I guess you will have to install a new build on every device via iTunes. Or you can try TestFlight, it's a great tool. And you can just install a new builds from the device itself. And

问题 For the third time in a row, I create a blank navigation-based iOS project, create two entities in the core data model, create references from entities to one another, and the second I mark them as inverse, this happens: UNCAUGHT EXCEPTION (NSInternalInconsistencyException): Cannot remove an observer <IDEDMArrayController 0x27fbcc0> for the key path "inspectedInverseRelationship.name" from <CDMRelationship 0x2911060>, most likely because the value for the key "inspectedInverseRelationship"

问题 Imagine that we have multiview apllication which is controlled by Navigation Controller. We go from the first view to second by using pushViewController method and that's not a problem but then we need to move to the third view. And the third one is a view which looks like a TabBar. How do we do that? The third view is supposed to be controlled by TabBarController, isn't it? So how to pass the control? I declared an outlet UITabBarController * tbc and connected it to TabBarController in xib

问题 When I place a breakpoint on a line in XCode 4, and it stops at that breakpoint, it doesn't show the line that is highlighted initially or when I step. This only happens once--when I initially open XCode. It will show the line, and then every run after that it won't. Any ideas how to bring it back? It's XCode 4.0.2. I've read a lot about XCode being broken, and I've experienced that too, but is there anything I can do? Edit: I've also tried reinstalling XCode from a fresh download. 回答1: Fixed

问题 When designing in Interface Builder and you add text to a prompt property, it creates an additional top title. This comes with the extra thickness needed to allow for 2 tiles in the navigation bar. Once I remove the text, let's say to reset back to the way it was, it keeps that thickness even though there is no text there. At runtime switching views makes the bar grow and shrink, which isnot nice. My question is, how do you reset this back to a default single line thickness bar? Thank you Jim