¡@

Home 

2014/10/15 ¤U¤È 10:12:15

iphone Programming Glossary: objective

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

is deprecated in 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..

How to make a UITextField move up when keyboard is present

http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present

up or center the lower text fields in the visible area which is what I would really like. iphone objective c ios share improve this question You will need a scroll view if the contents you have now does..

How to add a breakpoint to objc_exception_throw?

http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw

exception within the debugger. now in this answer i want to ask how do i add location mentioned objective c iphone xcode debugging memory leaks share improve this question I think Brad's answer is pretty..

How to detect iPhone 5 (widescreen devices)?

http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices

user has an iPhone with 3.5 or 4 screen and then apply the view. How should I do that iphone ios objective c screen device share improve this question First of all you shouldn't rebuild all your views to..

AES Encryption for an NSString on the iPhone

http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone

able to decrypt an encrypted string but I hope that's as simple as kCCEncrypt kCCDecrypt. iphone objective c encryption nsstring aes share improve this question Since you haven't posted any code it's difficult..

Cropping a UIImage

http://stackoverflow.com/questions/158914/cropping-a-uiimage

these. Am I wrong Oh how I miss NSImage's drawInRect fromRect operation fraction method. iphone objective c cocoa touch image manipulation share improve this question I'm going to copy paste my response..

How to force NSLocalizedString to use a specific language

http://stackoverflow.com/questions/1669645/how-to-force-nslocalizedstring-to-use-a-specific-language

to use a specific language to have the app in a different language than the device iphone objective c cocoa localization internationalization share improve this question NSLocalizedString and variants..

Is there a documented way to set the iPhone orientation?

http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation

View 1 and then switches to View 2 I want to force the phone to rotate back to Portrait. iphone objective c cocoa touch share improve this question This is no longer an issue on the later iPhone 3.1.2 SDK...

Send and receive messages through NSNotificationCenter in Objective-C? [closed]

http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c

example program to send and receive a message through NSNotificationCenter in Objective C iphone objective c ios nsnotificationcenter share improve this question @implementation TestClass void dealloc If..

EXC_BAD_ACCESS signal received

http://stackoverflow.com/questions/327082/exc-bad-access-signal-received

below. Have you encountered the EXC_BAD_ACCESS signal before and how did you deal with it iphone objective c ios xcode cocoa touch share improve this question From your description I suspect the most likely..

Prefixing property names with an underscore in Objective C [duplicate]

http://stackoverflow.com/questions/3521254/prefixing-property-names-with-an-underscore-in-objective-c

Objective C duplicate Possible Duplicate How does an underscore in front of a variable in a cocoa objective c class work I've always avoided underscores in my variable names perhaps because its just not what.. one way it should be done is there a good reason for this style being the preferred one iphone objective c coding style share improve this question Current suggested Objective C 2.0 practice is to use..

Proper way to exit iPhone application?

http://stackoverflow.com/questions/355168/proper-way-to-exit-iphone-application

the app allocated what's the appropriate method to call to terminate the application iphone objective c cocoa touch ipad share improve this question Have you tried exit 0 Alternatively NSThread mainThread..

How do I do base64 encoding on iphone-sdk?

http://stackoverflow.com/questions/392464/how-do-i-do-base64-encoding-on-iphone-sdk

from the iPhone SDK. How can I do base64 encoding and decoding with or without a library iphone objective c ios ipad base64 share improve this question There's a nice code sample at the bottom of this post...

How to link to apps on the app store

http://stackoverflow.com/questions/433907/how-to-link-to-apps-on-the-app-store

directly so I know it is possible. Any ideas What is the URL Scheme for the app store iphone objective c hyperlink app store share improve this question From https developer.apple.com news id 01062010a..

iPhone/iOS JSON parsing tutorial [closed]

http://stackoverflow.com/questions/5813077/iphone-ios-json-parsing-tutorial

it converts the JSON into an NSArray first . Anyone know of anything that might be useful iphone objective c ios json uitableview share improve this question You will love this framework . And you will love..

How do I create delegates in Objective-C?

http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c

C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has..

How do I get a background location update every n minutes in my iOS application?

http://stackoverflow.com/questions/6347503/how-do-i-get-a-background-location-update-every-n-minutes-in-my-ios-application

background processes. How can I implement these regular background location updates iphone ios objective c core location background process share improve this question Found a solution to implement this..

Objective C HTML escape/unescape

http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape

codes like Ӓ and the like. Is there any methods in Cocoa Touch UIKit to do this iphone html objective c cocoa touch escaping share improve this question This link contains the solution below. Cocoa..

How can I programmatically get the MAC address of an iphone

http://stackoverflow.com/questions/677530/how-can-i-programmatically-get-the-mac-address-of-an-iphone

Does anyone know how to programmatically get an iPhone's MAC address and IP address iphone objective c mac address share improve this question Somthing I stumbled across a while ago. Originally from..

HTML character decoding in Objective-C / Cocoa Touch

http://stackoverflow.com/questions/1105169/html-character-decoding-in-objective-c-cocoa-touch

character decoding in Objective C Cocoa Touch First of all I found this Objective C HTML escape unescape but it doesn't work for me... character decoding in Objective C Cocoa Touch First of all I found this Objective C HTML escape unescape but it doesn't work for me. My encoded characters come from a RSS feed btw look..

How to call Objective-C from Javascript?

http://stackoverflow.com/questions/1662473/how-to-call-objective-c-from-javascript

to call Objective C from Javascript I have a WebView and I want to call a view in Objective C from JavaScript. Does someone.. to call Objective C from Javascript I have a WebView and I want to call a view in Objective C from JavaScript. Does someone know how I can do this I have this code in my ViewController BOOL webView.. This is the code to open the Store NSLog components objectAtIndex 3 param2 Call your method in Objective C method using the above... return NO return YES Return YES to make sure regular navigation works as..

Send and receive messages through NSNotificationCenter in Objective-C? [closed]

http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c

and receive messages through NSNotificationCenter in Objective C closed I need a simple example program to send and receive a message through NSNotificationCenter.. I need a simple example program to send and receive a message through NSNotificationCenter in Objective C iphone objective c ios nsnotificationcenter share improve this question @implementation TestClass..

This class is not key value coding-compliant for the key

http://stackoverflow.com/questions/3088059/this-class-is-not-key-value-coding-compliant-for-the-key

the correct class resolves the problem. By the way it is bad practice to have names like string in Objective C. It invites a runtime naming collision. Avoid them even in once off practice apps. Naming collisions..

EXC_BAD_ACCESS signal received

http://stackoverflow.com/questions/327082/exc-bad-access-signal-received

you've been working on iPhone development for a few weeks but not whether you are experienced with Objective C in general. If you've come from another background it can take a little while before you really internalise..

Prefixing property names with an underscore in Objective C [duplicate]

http://stackoverflow.com/questions/3521254/prefixing-property-names-with-an-underscore-in-objective-c

property names with an underscore in Objective C duplicate Possible Duplicate How does an underscore in front of a variable in a cocoa objective c.. just not what was done back in my learning Java in college days. So when I define a property in Objective C this is what I naturally do. In the header @interface Whatever NSString myStringProperty @property.. preferred one iphone objective c coding style share improve this question Current suggested Objective C 2.0 practice is to use the same name for the ivar as the property. You can optionally assign a different..

parsing HTML on the iPhone [closed]

http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone

HTML on the iPhone closed Can anyone recommend a C or Objective C library for HTML parsing It needs to handle messy HTML code that won't quite validate. Does such a.. improve this question I found using hpple quite useful to parse messy HTML. Hpple project is a Objective C wrapper on the XPathQuery library for parsing HTML. Using it you can send an XPath query and receive..

How do I create delegates in Objective-C?

http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c

do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective.. how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been assigned as a delegate of another. There's no special process..

Objective C HTML escape/unescape

http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape

C HTML escape unescape Wondering if there is an easy way to do a simple HTML escape unescape in Objective.. C HTML escape unescape Wondering if there is an easy way to do a simple HTML escape unescape in Objective C. What I want is something like this psuedo code NSString string @ lt span gt Foo lt span gt string..

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

to the controller. All objects respond to methodForSelector and it works through some lower level Objective C runtime methods so you could do this directly with the runtime API as well . These function pointers.. 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 side simply tells the compiler.. doing so requires a lot more typing and is also slower so there's little reason to do it. 1 All Objective C methods have two hidden arguments self and _cmd that are implicitly added when you call a method...

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

NULL YES NO Is what I have done bad Not to mention stringWithContentsOfURL is deprecated in 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..

How to make a UITextField move up when keyboard is present

http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present

215 50 resize However this doesn't automatically move up or center the lower text fields in the visible area which is what I would really like. iphone objective c ios share improve this question You will need a scroll view if the contents you have now does not fit in the iPhone screen. If you are adding the scroll view..

How to add a breakpoint to objc_exception_throw?

http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw

then be able to see the chain of events that led to the exception within the debugger. now in this answer i want to ask how do i add location mentioned objective c iphone xcode debugging memory leaks share improve this question I think Brad's answer is pretty clear hopefully this can help if you're not finding it clear...

How to detect iPhone 5 (widescreen devices)?

http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices

every window twice but I also have to detect whether the user has an iPhone with 3.5 or 4 screen and then apply the view. How should I do that iphone ios objective c screen device share improve this question First of all you shouldn't rebuild all your views to fit a new screen nor use different views for different screen..

AES Encryption for an NSString on the iPhone

http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone

failed in every case I've used it. I would also have to be able to decrypt an encrypted string but I hope that's as simple as kCCEncrypt kCCDecrypt. iphone objective c encryption nsstring aes share improve this question Since you haven't posted any code it's difficult to know exactly which problems you're encountering. However..

Cropping a UIImage

http://stackoverflow.com/questions/158914/cropping-a-uiimage

hoping that drawing to an offscreen view wasn't one of these. Am I wrong Oh how I miss NSImage's drawInRect fromRect operation fraction method. iphone objective c cocoa touch image manipulation share improve this question I'm going to copy paste my response to the same question elsewhere There isn't a simple class method..

How to force NSLocalizedString to use a specific language

http://stackoverflow.com/questions/1669645/how-to-force-nslocalizedstring-to-use-a-specific-language

language of the iPhone. Is it possible to force NSLocalizedString to use a specific language to have the app in a different language than the device iphone objective c cocoa localization internationalization share improve this question NSLocalizedString and variants thereof access the AppleLanguages key in NSUserDefaults..

Is there a documented way to set the iPhone orientation?

http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation

for all views but if the user is in landscape mode in View 1 and then switches to View 2 I want to force the phone to rotate back to Portrait. iphone objective c cocoa touch share improve this question This is no longer an issue on the later iPhone 3.1.2 SDK. It now appears to honor the requested orientation of the..

Send and receive messages through NSNotificationCenter in Objective-C? [closed]

http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c

NSNotificationCenter in Objective C closed I need a simple example program to send and receive a message through NSNotificationCenter in Objective C iphone objective c ios nsnotificationcenter share improve this question @implementation TestClass void dealloc If you don't remove yourself as an observer the Notification Center..

EXC_BAD_ACCESS signal received

http://stackoverflow.com/questions/327082/exc-bad-access-signal-received

memory access. You can find more information in the answers below. Have you encountered the EXC_BAD_ACCESS signal before and how did you deal with it iphone objective c ios xcode cocoa touch share improve this question From your description I suspect the most likely explanation is that you have some error in your memory management...

Prefixing property names with an underscore in Objective C [duplicate]

http://stackoverflow.com/questions/3521254/prefixing-property-names-with-an-underscore-in-objective-c

property names with an underscore in Objective C duplicate Possible Duplicate How does an underscore in front of a variable in a cocoa objective c class work I've always avoided underscores in my variable names perhaps because its just not what was done back in my learning Java in college days. So when I.. I get over my aversion to the underscore because that is the one way it should be done is there a good reason for this style being the preferred one iphone objective c coding style share improve this question Current suggested Objective C 2.0 practice is to use the same name for the ivar as the property. You can optionally..

Proper way to exit iPhone application?

http://stackoverflow.com/questions/355168/proper-way-to-exit-iphone-application

it to exit due to certain user actions. After cleaning up memory the app allocated what's the appropriate method to call to terminate the application iphone objective c cocoa touch ipad share improve this question Have you tried exit 0 Alternatively NSThread mainThread exit although I have not tried that it seems like the..

How do I do base64 encoding on iphone-sdk?

http://stackoverflow.com/questions/392464/how-do-i-do-base64-encoding-on-iphone-sdk

base64 encoding and decoding but I could not find any support from the iPhone SDK. How can I do base64 encoding and decoding with or without a library iphone objective c ios ipad base64 share improve this question There's a nice code sample at the bottom of this post. Very self contained... BaseSixtyFour share improve this..

How to link to apps on the app store

http://stackoverflow.com/questions/433907/how-to-link-to-apps-on-the-app-store

the app store. I have used other apps that open the app store directly so I know it is possible. Any ideas What is the URL Scheme for the app store iphone objective c hyperlink app store share improve this question From https developer.apple.com news id 01062010a Drive Customers Directly to Your App on the App Store with..

iPhone/iOS JSON parsing tutorial [closed]

http://stackoverflow.com/questions/5813077/iphone-ios-json-parsing-tutorial

that response to populate the rows of a UITableView assuming it converts the JSON into an NSArray first . Anyone know of anything that might be useful iphone objective c ios json uitableview share improve this question You will love this framework . And you will love this tool . For learning about JSON you might like this..

How do I create delegates in Objective-C?

http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c

do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been assigned as a delegate of another. There's no special..

How do I get a background location update every n minutes in my iOS application?

http://stackoverflow.com/questions/6347503/how-do-i-get-a-background-location-update-every-n-minutes-in-my-ios-application

moved to the background rather than implementing long running background processes. How can I implement these regular background location updates iphone ios objective c core location background process share improve this question Found a solution to implement this with the help of the Apple Developer Forums. I did the following..

Objective C HTML escape/unescape

http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape

unescaping all other HTML entities as well and even ASCII codes like Ӓ and the like. Is there any methods in Cocoa Touch UIKit to do this iphone html objective c cocoa touch escaping share improve this question This link contains the solution below. Cocoa CF has the CFXMLCreateStringByUnescapingEntities function but..

How can I programmatically get the MAC address of an iphone

http://stackoverflow.com/questions/677530/how-can-i-programmatically-get-the-mac-address-of-an-iphone

can I programmatically get the MAC address of an iphone Does anyone know how to programmatically get an iPhone's MAC address and IP address iphone objective c mac address share improve this question Somthing I stumbled across a while ago. Originally from here I modified it a bit and cleaned things up. IPAddress.h..

HTML character decoding in Objective-C / Cocoa Touch

http://stackoverflow.com/questions/1105169/html-character-decoding-in-objective-c-cocoa-touch

character decoding in Objective C Cocoa Touch First of all I found this Objective C HTML escape unescape but it doesn't work for me. My encoded characters come from a RSS feed btw look like this.. character decoding in Objective C Cocoa Touch First of all I found this Objective C HTML escape unescape but it doesn't work for me. My encoded characters come from a RSS feed btw look like this #038 I searched all over the net and found related..

How to call Objective-C from Javascript?

http://stackoverflow.com/questions/1662473/how-to-call-objective-c-from-javascript

to call Objective C from Javascript I have a WebView and I want to call a view in Objective C from JavaScript. Does someone know how I can do this I have this code in my ViewController.. to call Objective C from Javascript I have a WebView and I want to call a view in Objective C from JavaScript. Does someone know how I can do this I have this code in my ViewController BOOL webView UIWebView webView2 shouldStartLoadWithRequest NSURLRequest.. components objectAtIndex 2 Airship shared displayStoreFront This is the code to open the Store NSLog components objectAtIndex 3 param2 Call your method in Objective C method using the above... return NO return YES Return YES to make sure regular navigation works as expected. And in Javascript function store event document.location..

Send and receive messages through NSNotificationCenter in Objective-C? [closed]

http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c

and receive messages through NSNotificationCenter in Objective C closed I need a simple example program to send and receive a message through NSNotificationCenter in Objective C iphone objective c ios nsnotificationcenter.. messages through NSNotificationCenter in Objective C closed I need a simple example program to send and receive a message through NSNotificationCenter in Objective C iphone objective c ios nsnotificationcenter share improve this question @implementation TestClass void dealloc If you don't remove yourself as an observer..

This class is not key value coding-compliant for the key

http://stackoverflow.com/questions/3088059/this-class-is-not-key-value-coding-compliant-for-the-key

of UIViewController instead of SecondView . Changing to the correct class resolves the problem. By the way it is bad practice to have names like string in Objective C. It invites a runtime naming collision. Avoid them even in once off practice apps. Naming collisions can be very hard to track down and you don't want to waste..

EXC_BAD_ACCESS signal received

http://stackoverflow.com/questions/327082/exc-bad-access-signal-received

you have some error in your memory management. You said you've been working on iPhone development for a few weeks but not whether you are experienced with Objective C in general. If you've come from another background it can take a little while before you really internalise the memory management rules unless you make a big..

Prefixing property names with an underscore in Objective C [duplicate]

http://stackoverflow.com/questions/3521254/prefixing-property-names-with-an-underscore-in-objective-c

property names with an underscore in Objective C duplicate Possible Duplicate How does an underscore in front of a variable in a cocoa objective c class work I've always avoided underscores in my variable names.. avoided underscores in my variable names perhaps because its just not what was done back in my learning Java in college days. So when I define a property in Objective C this is what I naturally do. In the header @interface Whatever NSString myStringProperty @property nonatomic copy NSString myStringProperty In the implementation.. be done is there a good reason for this style being the preferred one iphone objective c coding style share improve this question Current suggested Objective C 2.0 practice is to use the same name for the ivar as the property. You can optionally assign a different ivar in the @property declaration but the fact that by..

parsing HTML on the iPhone [closed]

http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone

HTML on the iPhone closed Can anyone recommend a C or Objective C library for HTML parsing It needs to handle messy HTML code that won't quite validate. Does such a library exist or am I better off just trying to use regular.. iphone html parsing html content extraction share improve this question I found using hpple quite useful to parse messy HTML. Hpple project is a Objective C wrapper on the XPathQuery library for parsing HTML. Using it you can send an XPath query and receive the result . Requirements Add libxml2 includes to your project..

How do I create delegates in Objective-C?

http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c

do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An.. I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been assigned as a delegate of another. There's no special process for creating them you simply define a class that implements..

Objective C HTML escape/unescape

http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape

C HTML escape unescape Wondering if there is an easy way to do a simple HTML escape unescape in Objective C. What I want is something like this psuedo code NSString.. C HTML escape unescape Wondering if there is an easy way to do a simple HTML escape unescape in Objective C. What I want is something like this psuedo code NSString string @ lt span gt Foo lt span gt string stringByUnescapingHTML Which returns span Foo span Hopefully..

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

for the C function pointer for the method corresponding to the controller. All objects respond to methodForSelector and it works through some lower level Objective C runtime methods so you could do this directly with the runtime API as well . These function pointers are called IMP s and are simple typedef ed function pointers.. 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 side simply tells the compiler that you know what you're doing and not to generate.. to build up an NSMethodInvocation to handle this as well but doing so requires a lot more typing and is also slower so there's little reason to do it. 1 All Objective C methods have two hidden arguments self and _cmd that are implicitly added when you call a method. 2 Actually it's possible for it to get the wrong info if declare..

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

Not to mention stringWithContentsOfURL is deprecated in 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..

How to make a UITextField move up when keyboard is present

http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present

automatically move up or center the lower text fields in the visible area which is what I would really like. iphone objective c ios share improve this question You will need a scroll view if the contents you have now does not fit in the iPhone..

How to add a breakpoint to objc_exception_throw?

http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw

that led to the exception within the debugger. now in this answer i want to ask how do i add location mentioned objective c iphone xcode debugging memory leaks share improve this question I think Brad's answer is pretty clear hopefully this..

How to detect iPhone 5 (widescreen devices)?

http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices

detect whether the user has an iPhone with 3.5 or 4 screen and then apply the view. How should I do that iphone ios objective c screen device share improve this question First of all you shouldn't rebuild all your views to fit a new screen nor..

AES Encryption for an NSString on the iPhone

http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone

also have to be able to decrypt an encrypted string but I hope that's as simple as kCCEncrypt kCCDecrypt. iphone objective c encryption nsstring aes share improve this question Since you haven't posted any code it's difficult to know exactly..

Cropping a UIImage

http://stackoverflow.com/questions/158914/cropping-a-uiimage

view wasn't one of these. Am I wrong Oh how I miss NSImage's drawInRect fromRect operation fraction method. iphone objective c cocoa touch image manipulation share improve this question I'm going to copy paste my response to the same question..

How to force NSLocalizedString to use a specific language

http://stackoverflow.com/questions/1669645/how-to-force-nslocalizedstring-to-use-a-specific-language

to force NSLocalizedString to use a specific language to have the app in a different language than the device iphone objective c cocoa localization internationalization share improve this question NSLocalizedString and variants thereof access..

Is there a documented way to set the iPhone orientation?

http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation

in landscape mode in View 1 and then switches to View 2 I want to force the phone to rotate back to Portrait. iphone objective c cocoa touch share improve this question This is no longer an issue on the later iPhone 3.1.2 SDK. It now appears to..

Send and receive messages through NSNotificationCenter in Objective-C? [closed]

http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c

I need a simple example program to send and receive a message through NSNotificationCenter in Objective C iphone objective c ios nsnotificationcenter share improve this question @implementation TestClass void dealloc If you don't remove yourself..

EXC_BAD_ACCESS signal received

http://stackoverflow.com/questions/327082/exc-bad-access-signal-received

in the answers below. Have you encountered the EXC_BAD_ACCESS signal before and how did you deal with it iphone objective c ios xcode cocoa touch share improve this question From your description I suspect the most likely explanation is that..

Prefixing property names with an underscore in Objective C [duplicate]

http://stackoverflow.com/questions/3521254/prefixing-property-names-with-an-underscore-in-objective-c

an underscore in Objective C duplicate Possible Duplicate How does an underscore in front of a variable in a cocoa objective c class work I've always avoided underscores in my variable names perhaps because its just not what was done back in my.. because that is the one way it should be done is there a good reason for this style being the preferred one iphone objective c coding style share improve this question Current suggested Objective C 2.0 practice is to use the same name for the..

Proper way to exit iPhone application?

http://stackoverflow.com/questions/355168/proper-way-to-exit-iphone-application

After cleaning up memory the app allocated what's the appropriate method to call to terminate the application iphone objective c cocoa touch ipad share improve this question Have you tried exit 0 Alternatively NSThread mainThread exit although..

How do I do base64 encoding on iphone-sdk?

http://stackoverflow.com/questions/392464/how-do-i-do-base64-encoding-on-iphone-sdk

not find any support from the iPhone SDK. How can I do base64 encoding and decoding with or without a library iphone objective c ios ipad base64 share improve this question There's a nice code sample at the bottom of this post. Very self contained.....

How to link to apps on the app store

http://stackoverflow.com/questions/433907/how-to-link-to-apps-on-the-app-store

that open the app store directly so I know it is possible. Any ideas What is the URL Scheme for the app store iphone objective c hyperlink app store share improve this question From https developer.apple.com news id 01062010a Drive Customers Directly..

iPhone/iOS JSON parsing tutorial [closed]

http://stackoverflow.com/questions/5813077/iphone-ios-json-parsing-tutorial

UITableView assuming it converts the JSON into an NSArray first . Anyone know of anything that might be useful iphone objective c ios json uitableview share improve this question You will love this framework . And you will love this tool . For..

How do I create delegates in Objective-C?

http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c

in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been assigned as a..

How do I get a background location update every n minutes in my iOS application?

http://stackoverflow.com/questions/6347503/how-do-i-get-a-background-location-update-every-n-minutes-in-my-ios-application

long running background processes. How can I implement these regular background location updates iphone ios objective c core location background process share improve this question Found a solution to implement this with the help of the..

Objective C HTML escape/unescape

http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape

well and even ASCII codes like Ӓ and the like. Is there any methods in Cocoa Touch UIKit to do this iphone html objective c cocoa touch escaping share improve this question This link contains the solution below. Cocoa CF has the CFXMLCreateStringByUnescapingEntities..

How can I programmatically get the MAC address of an iphone

http://stackoverflow.com/questions/677530/how-can-i-programmatically-get-the-mac-address-of-an-iphone

MAC address of an iphone Does anyone know how to programmatically get an iPhone's MAC address and IP address iphone objective c mac address share improve this question Somthing I stumbled across a while ago. Originally from here I modified it..

HTML character decoding in Objective-C / Cocoa Touch

http://stackoverflow.com/questions/1105169/html-character-decoding-in-objective-c-cocoa-touch

character decoding in Objective C Cocoa Touch First of all I found this Objective C HTML escape unescape but it doesn't work for me. My encoded characters.. character decoding in Objective C Cocoa Touch First of all I found this Objective C HTML escape unescape but it doesn't work for me. My encoded characters come from a RSS feed btw look like this #038 I..

How to call Objective-C from Javascript?

http://stackoverflow.com/questions/1662473/how-to-call-objective-c-from-javascript

to call Objective C from Javascript I have a WebView and I want to call a view in Objective C from JavaScript. Does someone know how I can.. to call Objective C from Javascript I have a WebView and I want to call a view in Objective C from JavaScript. Does someone know how I can do this I have this code in my ViewController BOOL webView UIWebView webView2.. displayStoreFront This is the code to open the Store NSLog components objectAtIndex 3 param2 Call your method in Objective C method using the above... return NO return YES Return YES to make sure regular navigation works as expected. And in Javascript..

Send and receive messages through NSNotificationCenter in Objective-C? [closed]

http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c

and receive messages through NSNotificationCenter in Objective C closed I need a simple example program to send and receive a message through NSNotificationCenter in Objective C iphone.. in Objective C closed I need a simple example program to send and receive a message through NSNotificationCenter in Objective C iphone objective c ios nsnotificationcenter share improve this question @implementation TestClass void dealloc If..

This class is not key value coding-compliant for the key

http://stackoverflow.com/questions/3088059/this-class-is-not-key-value-coding-compliant-for-the-key

. Changing to the correct class resolves the problem. By the way it is bad practice to have names like string in Objective C. It invites a runtime naming collision. Avoid them even in once off practice apps. Naming collisions can be very hard..

EXC_BAD_ACCESS signal received

http://stackoverflow.com/questions/327082/exc-bad-access-signal-received

You said you've been working on iPhone development for a few weeks but not whether you are experienced with Objective C in general. If you've come from another background it can take a little while before you really internalise the memory..

Prefixing property names with an underscore in Objective C [duplicate]

http://stackoverflow.com/questions/3521254/prefixing-property-names-with-an-underscore-in-objective-c

property names with an underscore in Objective C duplicate Possible Duplicate How does an underscore in front of a variable in a cocoa objective c class work I've always.. perhaps because its just not what was done back in my learning Java in college days. So when I define a property in Objective C this is what I naturally do. In the header @interface Whatever NSString myStringProperty @property nonatomic copy NSString.. this style being the preferred one iphone objective c coding style share improve this question Current suggested Objective C 2.0 practice is to use the same name for the ivar as the property. You can optionally assign a different ivar in the @property..

parsing HTML on the iPhone [closed]

http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone

HTML on the iPhone closed Can anyone recommend a C or Objective C library for HTML parsing It needs to handle messy HTML code that won't quite validate. Does such a library exist or am.. extraction share improve this question I found using hpple quite useful to parse messy HTML. Hpple project is a Objective C wrapper on the XPathQuery library for parsing HTML. Using it you can send an XPath query and receive the result . Requirements..

How do I create delegates in Objective-C?

http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c

do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates.. I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been assigned as a delegate of another. There's no special process for creating them..

Objective C HTML escape/unescape

http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape

C HTML escape unescape Wondering if there is an easy way to do a simple HTML escape unescape in Objective C. What I want.. C HTML escape unescape Wondering if there is an easy way to do a simple HTML escape unescape in Objective C. What I want is something like this psuedo code NSString string @ lt span gt Foo lt span gt string stringByUnescapingHTML..

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

method corresponding to the controller. All objects respond to methodForSelector and it works through some lower level Objective C runtime methods so you could do this directly with the runtime API as well . These function pointers are called IMP s.. 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 side simply tells the compiler that you know.. this as well but doing so requires a lot more typing and is also slower so there's little reason to do it. 1 All Objective C methods have two hidden arguments self and _cmd that are implicitly added when you call a method. 2 Actually it's possible..