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2014/10/15 ¤U¤È 10:03:53
iphone Programming Glossary: arcHow to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk objective c ios cocoa touch reachability share improve this question METHOD 1 Use a simple ARC and GCD compatible class to do it 1 Add SystemConfiguration framework to the project but don't worry..
How do I set up a simple delegate to communicate between two view controllers? http://stackoverflow.com/questions/6168919/how-do-i-set-up-a-simple-delegate-to-communicate-between-two-view-controllers references See http stackoverflow.com a 4796131 263871 for the rationale Tip If you're not using ARC use `assign` instead of `weak` @property nonatomic weak id ChildViewControllerDelegate delegate A simple..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c delegate windowDidMove notification The delegate property itself is typically declared weak in ARC or assign pre ARC to avoid retain loops since the delegate of an object often holds a strong reference.. notification The delegate property itself is typically declared weak in ARC or assign pre ARC to avoid retain loops since the delegate of an object often holds a strong reference to that object...
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown may cause a leak because its selector is unknown I'm getting the following warning by the ARC compiler performSelector may cause a leak because its selector is unknown . Here's what I'm doing _controller.. you have the IMP you need to cast it to a function pointer that includes all of the details that ARC needs including the two implicit hidden arguments self and _cmd of every Objective C method call . This.. selector someRect someView Reasoning for Warning The reason for this warning is that with ARC the runtime needs to know what to do with the result of the method you're calling. The result could..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons ARC or not to ARC What are the pros and cons I've yet to use ARC since the majority of the code in the.. ARC or not to ARC What are the pros and cons I've yet to use ARC since the majority of the code in the project I'm working.. ARC or not to ARC What are the pros and cons I've yet to use ARC since the majority of the code in the project I'm working on at the moment was written pre iOS 5.0...
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk 3.0 And if so what is a better way to accomplish this iphone objective c ios cocoa touch reachability share improve this question METHOD 1 Use a simple ARC and GCD compatible class to do it 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Tony Million's version of..
How do I set up a simple delegate to communicate between two view controllers? http://stackoverflow.com/questions/6168919/how-do-i-set-up-a-simple-delegate-to-communicate-between-two-view-controllers UIViewController Delegate properties should always be weak references See http stackoverflow.com a 4796131 263871 for the rationale Tip If you're not using ARC use `assign` instead of `weak` @property nonatomic weak id ChildViewControllerDelegate delegate A simple IBAction method that I'll associate with a close button..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c self delegate respondsToSelector @selector windowDidMove self delegate windowDidMove notification The delegate property itself is typically declared weak in ARC or assign pre ARC to avoid retain loops since the delegate of an object often holds a strong reference to that object. For example a view controller is often the.. @selector windowDidMove self delegate windowDidMove notification The delegate property itself is typically declared weak in ARC or assign pre ARC to avoid retain loops since the delegate of an object often holds a strong reference to that object. For example a view controller is often the delegate of a view..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown may cause a leak because its selector is unknown I'm getting the following warning by the ARC compiler performSelector may cause a leak because its selector is unknown . Here's what I'm doing _controller performSelector NSSelectorFromString @ someMethod.. of the method but will not always match exactly. Once you have the IMP you need to cast it to a function pointer that includes all of the details that ARC needs including the two implicit hidden arguments self and _cmd of every Objective C method call . This is handled in the third line the void on the right hand.. func id SEL CGRect UIView void imp CGRect result func _controller selector someRect someView Reasoning for Warning The reason for this warning is that with ARC the runtime needs to know what to do with the result of the method you're calling. The result could be anything void int char NSString id etc. ARC normally gets..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons ARC or not to ARC What are the pros and cons I've yet to use ARC since the majority of the code in the project I'm working on at the moment was written pre iOS 5.0... ARC or not to ARC What are the pros and cons I've yet to use ARC since the majority of the code in the project I'm working on at the moment was written pre iOS 5.0. I was just wondering.. ARC or not to ARC What are the pros and cons I've yet to use ARC since the majority of the code in the project I'm working on at the moment was written pre iOS 5.0. I was just wondering does the convenience of not retaining releasing..
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk accomplish this iphone objective c ios cocoa touch reachability share improve this question METHOD 1 Use a simple ARC and GCD compatible class to do it 1 Add SystemConfiguration framework to the project but don't worry about including it..
How do I set up a simple delegate to communicate between two view controllers? http://stackoverflow.com/questions/6168919/how-do-i-set-up-a-simple-delegate-to-communicate-between-two-view-controllers should always be weak references See http stackoverflow.com a 4796131 263871 for the rationale Tip If you're not using ARC use `assign` instead of `weak` @property nonatomic weak id ChildViewControllerDelegate delegate A simple IBAction method..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c windowDidMove self delegate windowDidMove notification The delegate property itself is typically declared weak in ARC or assign pre ARC to avoid retain loops since the delegate of an object often holds a strong reference to that object. For.. self delegate windowDidMove notification The delegate property itself is typically declared weak in ARC or assign pre ARC to avoid retain loops since the delegate of an object often holds a strong reference to that object. For example a view..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown may cause a leak because its selector is unknown I'm getting the following warning by the ARC compiler performSelector may cause a leak because its selector is unknown . Here's what I'm doing _controller performSelector.. match exactly. Once you have the IMP you need to cast it to a function pointer that includes all of the details that ARC needs including the two implicit hidden arguments self and _cmd of every Objective C method call . This is handled in the.. result func _controller selector someRect someView Reasoning for Warning The reason for this warning is that with ARC the runtime needs to know what to do with the result of the method you're calling. The result could be anything void int..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons ARC or not to ARC What are the pros and cons I've yet to use ARC since the majority of the code in the project I'm working.. ARC or not to ARC What are the pros and cons I've yet to use ARC since the majority of the code in the project I'm working on at the moment.. ARC or not to ARC What are the pros and cons I've yet to use ARC since the majority of the code in the project I'm working on at the moment was written pre iOS 5.0. I was just wondering..
Basic keyframe animation (rotation) http://stackoverflow.com/questions/1031177/basic-keyframe-animation-rotation angle to another through a given midpoint. The purpose is to be able to animate rotation through an OBTUSE angle of arc GREATER THAN 180 DEGREES rather than having the animation 'cheat' and go the shortest route i.e. via the opposite ACUTE.. destination keyframe. To go the 'long' way around I assume I need an extra keyframe midway through along the desired arc. Here's what I've got so far which does get the graphic to the desired rotation via the most acute angle #define DEGREES_TO_RADIANS..
Does JSONKit support ARC, or is there a fork that supports ARC? http://stackoverflow.com/questions/10681597/does-jsonkit-support-arc-or-is-there-a-fork-that-supports-arc a fork that supports ARC According to these comments JSONKit does not support ARC and not even running with fobjc no arc setting in an ARC environment https github.com johnezang JSONKit issues 37 iphone ios json jsonkit share improve this..
http://stackoverflow.com/questions/3729690/draw-part-of-a-circle Hope someone can give me any pointers here. iphone objective c cocoa touch share improve this question Use the arc methods CGContextAddArc context centerX centerY radius startAngleRadians endAngleRadians clockwise 1 0 See the documentation..
iOS 5 Best Practice (Release/retain?) http://stackoverflow.com/questions/6308425/ios-5-best-practice-release-retain ARC. Here's what Apple says about opting out of ARC for specific files When you migrate a project to use ARC the fobjc arc compiler flag is set as the default for all Objective C source files. You can disable ARC for a specific class using the.. is set as the default for all Objective C source files. You can disable ARC for a specific class using the fno objc arc compiler flag for that class. In Xcode in the target Build Phases tab open the Compile Sources group to reveal the source..
Objective-C ARC Error: -fobjc-arc is not supported with fragile abi http://stackoverflow.com/questions/6965990/objective-c-arc-error-fobjc-arc-is-not-supported-with-fragile-abi C ARC Error fobjc arc is not supported with fragile abi I'm having a problem trying to migrate my iPhone app to the new ARC technology. When.. technology. When I try to convert the code the following error shows up 29 times Apple LLVM compiler 3.0 Error fobjc arc is not supported with fragile abi What does this mean And more importantly how can I fix it Thanks in advance iphone objective..
Quartz 2D drawRect method (iPhone) http://stackoverflow.com/questions/716351/quartz-2d-drawrect-method-iphone where you create a new UIView or CALayer for each drawing operation. The contents of that drawing operation line arc X etc. would be drawn by the individual view or layer. That way you won't have to redraw everything on a new touch and you..
ARC forbids Objective-C objects in structs or unions despite marking the file -fno-objc-arc http://stackoverflow.com/questions/8093099/arc-forbids-objective-c-objects-in-structs-or-unions-despite-marking-the-file-f forbids Objective C objects in structs or unions despite marking the file fno objc arc ARC forbids Objective C objects in structs or unions despite marking the file fno objc arc Why is this so I had the assumption.. marking the file fno objc arc ARC forbids Objective C objects in structs or unions despite marking the file fno objc arc Why is this so I had the assumption that if you mark it fno objc arc you don't have this restriction. iphone objective.. or unions despite marking the file fno objc arc Why is this so I had the assumption that if you mark it fno objc arc you don't have this restriction. iphone objective c struct ios5 automatic ref counting share improve this question ..
http://stackoverflow.com/questions/8694738/arc-and-asihttprequest
Using Non-ARC Code in an ARC-Enabled Project - Adding Facebook http://stackoverflow.com/questions/8701780/using-non-arc-code-in-an-arc-enabled-project-adding-facebook to do this since i have done most of the stuff. I added the FBConnect files there were 4 of them and added fno objc arc as described in this tutorial . Still i get file localhost Users illepmorgan Documents Projects illep untitled 20folder.. c facebook twitter automatic ref counting share improve this question Make sure that you added the fno objc arc flag to each implementation file .m file . And then clean the project Project menu clean and build again. I have sometimes..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons If you're catching a significant number of ObjC exceptions you're using them incorrectly. This is fixable using fobjc arc exceptions but it incurs the penalties discussed below ARC will not leak memory during ObjC or C exception throws in ObjC.. reason at all to avoid it provided you can handle the OS version restrictions . For non ARC code you can pass fno objc arc on a file by file basis. Xcode unfortunately makes this much harder than it should be to do in practice. You should probably..
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