2014/10/15 下午 10:03:56
iphone Programming Glossary: argumentshttp://stackoverflow.com/questions/1349740/arguments-in-selector in @selector Is there any way that I can pass arguments in selector example I have this method void myMethod NSString value1 setValue2 NSString value2 and I.. value1 setValue2 NSString value2 and I need to call this function through a selector passing two arguments. NSTimer scheduledTimerWithTimeInterval 0.1 target self selector @selector my method userInfo nil repeats.. invocation repeats BOOL repeats Instead since an NSInvocation object will allow you to pass arguments an NSInvocation object is as the docs define it an Objective C message rendered static that is it is..
Does UIGestureRecognizer work on a UIWebView? http://stackoverflow.com/questions/2909807/does-uigesturerecognizer-work-on-a-uiwebview to the delegate of the UIWebView. In a nutshell you use document.location myscheme mycommand myarguments then parse out the command and arguments from this delegate callback BOOL webView UIWebView inWeb shouldStartLoadWithRequest.. a nutshell you use document.location myscheme mycommand myarguments then parse out the command and arguments from this delegate callback BOOL webView UIWebView inWeb shouldStartLoadWithRequest NSURLRequest inRequest.. UIWebViewNavigationType inType if inRequest URL absoluteString hasPrefix @ myscheme .. parse arguments return NO You can see in the PhoneGap code that they set up a queue and timer to send the messages...
dismissModalViewController AND pass data back http://stackoverflow.com/questions/6203799/dismissmodalviewcontroller-and-pass-data-back multiple viewcontrollers from a thread in the appdelegate EDIT If you want to pass multiple arguments the code before dismiss looks like this if self.myDelegate respondsToSelector @selector secondViewControllerDismissed..
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 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.. types don't match . Finally you call the function pointer. Complex Example When the selector takes arguments or returns a value you'll have to change things a bit SEL selector NSSelectorFromString @ processRegion.. 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..
http://stackoverflow.com/questions/1349740/arguments-in-selector in @selector Is there any way that I can pass arguments in selector example I have this method void myMethod NSString value1 setValue2 NSString value2 and I need to call this function through a selector passing two arguments... in selector example I have this method void myMethod NSString value1 setValue2 NSString value2 and I need to call this function through a selector passing two arguments. NSTimer scheduledTimerWithTimeInterval 0.1 target self selector @selector my method userInfo nil repeats YES How can I do this iphone cocoa cocoa touch share.. NSTimeInterval seconds invocation NSInvocation invocation repeats BOOL repeats Instead since an NSInvocation object will allow you to pass arguments an NSInvocation object is as the docs define it an Objective C message rendered static that is it is an action turned into an object. Whilst creating an NSTimer..
Does UIGestureRecognizer work on a UIWebView? http://stackoverflow.com/questions/2909807/does-uigesturerecognizer-work-on-a-uiwebview You can look in PhoneGap for an example of sending messages to the delegate of the UIWebView. In a nutshell you use document.location myscheme mycommand myarguments then parse out the command and arguments from this delegate callback BOOL webView UIWebView inWeb shouldStartLoadWithRequest NSURLRequest inRequest navigationType.. of sending messages to the delegate of the UIWebView. In a nutshell you use document.location myscheme mycommand myarguments then parse out the command and arguments from this delegate callback BOOL webView UIWebView inWeb shouldStartLoadWithRequest NSURLRequest inRequest navigationType UIWebViewNavigationType inType if inRequest.. shouldStartLoadWithRequest NSURLRequest inRequest navigationType UIWebViewNavigationType inType if inRequest URL absoluteString hasPrefix @ myscheme .. parse arguments return NO You can see in the PhoneGap code that they set up a queue and timer to send the messages. Depending on your usage you may need to do the same thing. There..
dismissModalViewController AND pass data back http://stackoverflow.com/questions/6203799/dismissmodalviewcontroller-and-pass-data-back you're curious about using NSNotifications Firing events accross multiple viewcontrollers from a thread in the appdelegate EDIT If you want to pass multiple arguments the code before dismiss looks like this if self.myDelegate respondsToSelector @selector secondViewControllerDismissed argument2 argument3 self.myDelegate secondViewControllerDismissed..
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 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 side simply tells the compiler that you know what.. doing and not to generate a warning since the pointer types don't match . Finally you call the function pointer. Complex Example When the selector takes arguments or returns a value you'll have to change things a bit SEL selector NSSelectorFromString @ processRegion ofView IMP imp _controller methodForSelector selector CGRect.. 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 you objects as id and you're not..
http://stackoverflow.com/questions/1349740/arguments-in-selector in @selector Is there any way that I can pass arguments in selector example I have this method void myMethod NSString value1 setValue2 NSString value2 and I need to call this function.. myMethod NSString value1 setValue2 NSString value2 and I need to call this function through a selector passing two arguments. NSTimer scheduledTimerWithTimeInterval 0.1 target self selector @selector my method userInfo nil repeats YES How can I.. invocation NSInvocation invocation repeats BOOL repeats Instead since an NSInvocation object will allow you to pass arguments an NSInvocation object is as the docs define it an Objective C message rendered static that is it is an action turned into..
SEL performSelector and arguments http://stackoverflow.com/questions/2716143/sel-performselector-and-arguments performSelector and arguments It seems like there should be an easy way to call a selector with some arguments when all you have is a SEL object. I can't.. performSelector and arguments It seems like there should be an easy way to call a selector with some arguments when all you have is a SEL object. I can't seem to find the correct syntax. MyClass init SEL sel owner NSObject parent int.. self myMethod number intValue to unbox the NSNumber . If you really want to invoke a method that takes non object arguments directly for example you don't have control of the callee source and don't want to add a category you can use NSInvocation..
Does UIGestureRecognizer work on a UIWebView? http://stackoverflow.com/questions/2909807/does-uigesturerecognizer-work-on-a-uiwebview of sending messages to the delegate of the UIWebView. In a nutshell you use document.location myscheme mycommand myarguments then parse out the command and arguments from this delegate callback BOOL webView UIWebView inWeb shouldStartLoadWithRequest.. the UIWebView. In a nutshell you use document.location myscheme mycommand myarguments then parse out the command and arguments from this delegate callback BOOL webView UIWebView inWeb shouldStartLoadWithRequest NSURLRequest inRequest navigationType.. inRequest navigationType UIWebViewNavigationType inType if inRequest URL absoluteString hasPrefix @ myscheme .. parse arguments return NO You can see in the PhoneGap code that they set up a queue and timer to send the messages. Depending on your usage..
dismissModalViewController AND pass data back http://stackoverflow.com/questions/6203799/dismissmodalviewcontroller-and-pass-data-back Firing events accross multiple viewcontrollers from a thread in the appdelegate EDIT If you want to pass multiple arguments the code before dismiss looks like this if self.myDelegate respondsToSelector @selector secondViewControllerDismissed argument2..
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 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.. since the pointer types don't match . Finally you call the function pointer. Complex Example When the selector takes arguments or returns a value you'll have to change things a bit SEL selector NSSelectorFromString @ processRegion ofView IMP imp _controller.. 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..
How to use NSzombie in xcode? [duplicate] http://stackoverflow.com/questions/1211923/how-to-use-nszombie-in-xcode to turn on zombies for in the Product menu select Edit Scheme go to the Run Foo.app stage in the left panel and the Arguments tab on the right. You can then add NSZombieEnabled to the Environment Variables section and set the value to YES as you..
http://stackoverflow.com/questions/1349740/arguments-in-selector in @selector Is there any way that I can pass arguments in selector example I have this method void myMethod NSString value1..
http://stackoverflow.com/questions/14259332/get-a-contact-picture-ios and LastName. So According to the Documentation you should use recordsMatchingSearchElement method for Multiple Arguments. Once you get the matched Data you can extract the image using below code CFDataRef imageData ABPersonCopyImageData aABRecordRef..
Signal 11, segmentation fault on iphone App exit http://stackoverflow.com/questions/1849929/signal-11-segmentation-fault-on-iphone-app-exit To enable zombies do the following Choose Project Edit Active Executable to open the executable Info window. Click Arguments. Click the add button in the 𦛼ariables to be set in the environment section. Enter NSZombieEnabled in the Name column and..
EXC_BAD_ACCESS on lauching, random bug http://stackoverflow.com/questions/3360437/exc-bad-access-on-lauching-random-bug the autorelease pool gets cleared it's an invalid operation. Debug it with zombies Double click your executable Select Arguments and add NSZombieEnabled with value YES Then run your app again and check the console it should tell you what object is being..
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 non object including void you could end up with a garbage pointer value being retained released and crash. Additional Arguments One consideration is that this is the same warning will occur with performSelector withObject and you could run into similar..
How to debug “message sent to deallocated instance” in Xcode4? http://stackoverflow.com/questions/8298946/how-to-debug-message-sent-to-deallocated-instance-in-xcode4 &ldquo message sent to deallocated instance&rdquo in Xcode4 I pressed ALT CMD R and activated NSZombieEnabled in Arguments Environment Variables. Additionally I activated it in Diagnostics Memory Management Enable Zombie Objects. However when..
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