¡@
2014/10/15 ¤U¤È 10:11:23
iphone Programming Glossary: methodsHow 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 7 In the .m file of where you are implementing the check you can place this in one of the first methods called init or viewWillAppear or viewDidLoad etc void viewWillAppear BOOL animated check for internet.. 8 Set up the method for when the notification gets sent and set whatever checks or call whatever methods you may have set up in my case I just set a BOOL void checkNetworkStatus NSNotification notice called..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how parent controller. In SimpleTableViewController.m implement the tableview data source and delegate methods calling itemSelectedatRow in tableView didSelectRowAtIndexPath . This approach has the added benefit..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone data will not always translate nicely into an NSString it may be more convenient to write two methods that wrap the functionality you need in forward and reverse... NSData encryptString NSString plaintext..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone views into a view that can get the shake event simply by subclassing the view with only these methods and then selecting this new type instead of the base type in IB or using it when allocating a view ...
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received when you are done. But if you get something back from just about anything else including factory methods e.g. NSString stringWithFormat then you'll have an autorelease reference which means it could be released..
http://stackoverflow.com/questions/3339722/check-iphone-ios-version @ UIPopoverController Do something Some classes like CLLocationManager and UIDevice provide methods to check device capabilities if CLLocationManager headingAvailable Do something Apple uses systemVersion..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c no special process for creating them you simply define a class that implements the delegate methods you're interested in. Though with delegates that use a formal protocol you must declare your delegate.. the delegate of a view it contains. To define your own delegates you'll have to declare their methods somewhere. There are two basic approaches discussed in the Apple Docs on protocols 1 An Informal Protocol.. @interface NSObject NSWindowNotifications void windowDidMove NSNotification notification ... other methods here @end You would then use respondsToSelector as described above when calling this method. Delegates..
Objective C HTML escape/unescape http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape 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..
What is the best way to deal with the NSDateFormatter locale “feature”? http://stackoverflow.com/questions/6613110/what-is-the-best-way-to-deal-with-the-nsdateformatter-locale-feature version of the OS. In case you're always using the same date format s you could also add category methods that return singleton instances with certain configurations something like sharedRFC3339DateFormatter..
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 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.. when it is no longer used standard assumption Release new object values when no longer used methods in the init copy family or attributed with ns_returns_retained Do nothing assume returned object value.. 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..
Reducing piracy of iPhone applications http://stackoverflow.com/questions/846309/reducing-piracy-of-iphone-applications piracy of iPhone applications What are accepted methods to reduce iPhone application piracy which do not violate Apple's evaluation process If my application..
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 to the .m file where you are implementing the check 7 In the .m file of where you are implementing the check you can place this in one of the first methods called init or viewWillAppear or viewDidLoad etc void viewWillAppear BOOL animated check for internet connection NSNotificationCenter defaultCenter addObserver.. startNotifier now patiently wait for the notification 8 Set up the method for when the notification gets sent and set whatever checks or call whatever methods you may have set up in my case I just set a BOOL void checkNetworkStatus NSNotification notice called after network status changes NetworkStatus internetStatus..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how . This is how we will pass the selection back to the parent controller. In SimpleTableViewController.m implement the tableview data source and delegate methods calling itemSelectedatRow in tableView didSelectRowAtIndexPath . This approach has the added benefit of being fairly reusable. To use import the SimpleTableViewController..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone pool drain return 0 Given this code and the fact that encrypted data will not always translate nicely into an NSString it may be more convenient to write two methods that wrap the functionality you need in forward and reverse... NSData encryptString NSString plaintext withKey NSString key return plaintext dataUsingEncoding NSUTF8StringEncoding..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone return YES @end You can easily transform any UIView even system views into a view that can get the shake event simply by subclassing the view with only these methods and then selecting this new type instead of the base type in IB or using it when allocating a view . In the view controller you want to set this view to become..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received or a copy method you own the memory too and must release it when you are done. But if you get something back from just about anything else including factory methods e.g. NSString stringWithFormat then you'll have an autorelease reference which means it could be released at some time in the future by other code so it is vital..
http://stackoverflow.com/questions/3339722/check-iphone-ios-version on the current device using NSClassFromString if NSClassFromString @ UIPopoverController Do something Some classes like CLLocationManager and UIDevice provide methods to check device capabilities if CLLocationManager headingAvailable Do something Apple uses systemVersion in their GLSprite sample code so my recommendation can't..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c 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 the delegate methods you're interested in. Though with delegates that use a formal protocol you must declare your delegate to implement that protocol see below. For example suppose.. reference to that object. For example a view controller is often the delegate of a view it contains. To define your own delegates you'll have to declare their methods somewhere. There are two basic approaches discussed in the Apple Docs on protocols 1 An Informal Protocol This can be done as NSWindow does in a category on NSObject... the example above this is paraphrased from NSWindow.h @interface NSObject NSWindowNotifications void windowDidMove NSNotification notification ... other methods here @end You would then use respondsToSelector as described above when calling this method. Delegates simply implement this method and they're done. This method..
Objective C HTML escape/unescape http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape Which returns span Foo span Hopefully 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..
What is the best way to deal with the NSDateFormatter locale “feature”? http://stackoverflow.com/questions/6613110/what-is-the-best-way-to-deal-with-the-nsdateformatter-locale-feature just in case Apple decides to add such a method in a future version of the OS. In case you're always using the same date format s you could also add category methods that return singleton instances with certain configurations something like sharedRFC3339DateFormatter . Be aware however that NSDateFormatter is not thread safe..
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 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 id IMP id SEL.. non object types void int etc Retain object value then release when it is no longer used standard assumption Release new object values when no longer used methods in the init copy family or attributed with ns_returns_retained Do nothing assume returned object value will be valid in local scope until inner most release pool.. 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 you objects..
Reducing piracy of iPhone applications http://stackoverflow.com/questions/846309/reducing-piracy-of-iphone-applications piracy of iPhone applications What are accepted methods to reduce iPhone application piracy which do not violate Apple's evaluation process If my application phones home to provide the unique device ID on which it runs..
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 implementing the check 7 In the .m file of where you are implementing the check you can place this in one of the first methods called init or viewWillAppear or viewDidLoad etc void viewWillAppear BOOL animated check for internet connection NSNotificationCenter.. for the notification 8 Set up the method for when the notification gets sent and set whatever checks or call whatever methods you may have set up in my case I just set a BOOL void checkNetworkStatus NSNotification notice called after network status..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how back to the parent controller. In SimpleTableViewController.m implement the tableview data source and delegate methods calling itemSelectedatRow in tableView didSelectRowAtIndexPath . This approach has the added benefit of being fairly reusable...
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone the fact that encrypted data will not always translate nicely into an NSString it may be more convenient to write two methods that wrap the functionality you need in forward and reverse... NSData encryptString NSString plaintext withKey NSString..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone any UIView even system views into a view that can get the shake event simply by subclassing the view with only these methods and then selecting this new type instead of the base type in IB or using it when allocating a view . In the view controller..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received and must release it when you are done. But if you get something back from just about anything else including factory methods e.g. NSString stringWithFormat then you'll have an autorelease reference which means it could be released at some time in..
http://stackoverflow.com/questions/3339722/check-iphone-ios-version if NSClassFromString @ UIPopoverController Do something Some classes like CLLocationManager and UIDevice provide methods to check device capabilities if CLLocationManager headingAvailable Do something Apple uses systemVersion in their GLSprite..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c of another. There's no special process for creating them you simply define a class that implements the delegate methods you're interested in. Though with delegates that use a formal protocol you must declare your delegate to implement that.. view controller is often the delegate of a view it contains. To define your own delegates you'll have to declare their methods somewhere. There are two basic approaches discussed in the Apple Docs on protocols 1 An Informal Protocol This can be done.. from NSWindow.h @interface NSObject NSWindowNotifications void windowDidMove NSNotification notification ... other methods here @end You would then use respondsToSelector as described above when calling this method. Delegates simply implement..
Objective C HTML escape/unescape http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape span Hopefully 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..
What is the best way to deal with the NSDateFormatter locale “feature”? http://stackoverflow.com/questions/6613110/what-is-the-best-way-to-deal-with-the-nsdateformatter-locale-feature a method in a future version of the OS. In case you're always using the same date format s you could also add category methods that return singleton instances with certain configurations something like sharedRFC3339DateFormatter . Be aware however..
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 are called IMP s and are simple typedef.. object value then release when it is no longer used standard assumption Release new object values when no longer used methods in the init copy family or attributed with ns_returns_retained Do nothing assume returned object value will be valid in.. 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..
Reducing piracy of iPhone applications http://stackoverflow.com/questions/846309/reducing-piracy-of-iphone-applications piracy of iPhone applications What are accepted methods to reduce iPhone application piracy which do not violate Apple's evaluation process If my application phones home to provide..
GET URL link from uploaded image to dropbox with SDK http://stackoverflow.com/questions/10559607/get-url-link-from-uploaded-image-to-dropbox-with-sdk method in DBRestClient.h that you should take a look at void loadSharableLinkForFile NSString path and their delegate Methods as well void restClient DBRestClient restClient loadedSharableLink NSString link forFile NSString path void restClient DBRestClient..
Using AFNetworking and HTTP Basic Authentication http://stackoverflow.com/questions/12440059/using-afnetworking-and-http-basic-authentication #import SBAPIManager.h #import AFNetworkActivityIndicatorManager.h @implementation SBAPIManager #pragma mark Methods void setUsername NSString username andPassword NSString password self.requestSerializer clearAuthorizationHeader self.requestSerializer.. serializer AFNetworkActivityIndicatorManager sharedManager setEnabled YES return self #pragma mark Singleton Methods SBAPIManager sharedManager static dispatch_once_t pred static SBAPIManager _sharedManager nil dispatch_once pred ^ _sharedManager.. #import AFJSONRequestOperation.h #import AFNetworkActivityIndicatorManager.h @implementation SBAPIManager #pragma mark Methods void setUsername NSString username andPassword NSString password self clearAuthorizationHeader self setAuthorizationHeaderWithUsername..
http://stackoverflow.com/questions/13511733/how-to-make-supplementary-view-float-in-uicollectionview-as-section-headers-do-i a custom layout just to achieve this effect. This entails quite a bit of work implementing the following methods Methods to Override Every layout object should implement the following methods collectionViewContentSize layoutAttributesForElementsInRect..
Blur an image of specific part (rectangular, circular)? http://stackoverflow.com/questions/14107979/blur-an-image-of-specific-part-rectangular-circular UIGraphicsEndImageContext return newImage return nil Method 4 Touch Move #pragma mark Touch Methods void touchesMoved NSSet touches withEvent UIEvent event UIImage croppedImg nil UITouch touch touches anyObject CGPoint currentPoint..
Accessing Method from other Classes Objective-C http://stackoverflow.com/questions/1658433/accessing-method-from-other-classes-objective-c the class files. This is what I want to do though I want to make a new class in It's own file that has all the Common Methods. Then whenever another class needs to call the Method I simply call it from the other file. This way when I want to change..
What is Delegate and Delegate Methods http://stackoverflow.com/questions/1788032/what-is-delegate-and-delegate-methods is Delegate and Delegate Methods Guys anyone please let me know difference between Delegate Delegate Methods and its differences and its usages iphone.. is Delegate and Delegate Methods Guys anyone please let me know difference between Delegate Delegate Methods and its differences and its usages iphone delegates cocoa design patterns share improve this question It's hard to..
Difference between + and - methods in Objective-c http://stackoverflow.com/questions/2238584/difference-between-and-methods-in-objective-c that are declared with e.g void methodname void methodname iphone objective c cocoa share improve this question Methods prefixed with are instance methods. This means they can only be invoked on an instance of a class eg myStringInstance length.. with are instance methods. This means they can only be invoked on an instance of a class eg myStringInstance length Methods prefixed with are class methods. This means they can be called on Classes without needing an instance eg NSString stringWithString..
Cache URL images iphone UITableview http://stackoverflow.com/questions/2265137/cache-url-images-iphone-uitableview Foundation Foundation.h @interface ImageCache NSObject @property nonatomic retain NSCache imgCache #pragma mark Methods ImageCache sharedImageCache void AddImage NSString imageURL UIImage image UIImage GetImage NSString imageURL BOOL DoesExist.. NSString imageURL @end ImageCache.m #import ImageCache.h @implementation ImageCache @synthesize imgCache #pragma mark Methods static ImageCache sharedImageCache nil ImageCache sharedImageCache @synchronized ImageCache class if sharedImageCache sharedImageCache..
Understanding NSHTTPCookieStorage for the iPhone http://stackoverflow.com/questions/2520331/understanding-nshttpcookiestorage-for-the-iphone If my app makes an Http call that results in some cookies being saved do all apps now have access to these cookies Methods like cookiesForURL Returns all the receiver's cookies that will be sent to a specified URL. make it look even more suspicious...
How to call a method of another Class? http://stackoverflow.com/questions/3235742/how-to-call-a-method-of-another-class with it super dealloc @end DetailedViewController.h @interface DetailedViewController UITableViewController iVars here Methods and properties here void moveToNextItem @end DetailedViewController.m #import DetailedViewController.h #import MyTableViewCell.h..
UISearchDisplayContoller ??can't prevent table reload on typing in search bar http://stackoverflow.com/questions/3903718/uisearchdisplaycontoller-cant-prevent-table-reload-on-typing-in-search-bar of course nothing happens until I hit the search button. #pragma mark #pragma mark UISearchDisplayController Delegate Methods BOOL searchDisplayController UISearchDisplayController controller shouldReloadTableForSearchString NSString searchString.. shouldReloadTableForSearchScope NSInteger searchOption return NO #pragma mark #pragma mark UISearchBarDelegate Methods void searchBarSearchButtonClicked UISearchBar searchBar self.searchDisplayController.searchResultsTableView reloadData #pragma..
Drawing Smooth Curves - Methods Needed http://stackoverflow.com/questions/8702696/drawing-smooth-curves-methods-needed Smooth Curves Methods Needed Like everyone before has asked how do you smooth a set of points in an iOS drawing app WHILE MOVING I have tried..
How do I start playing audio when in silent mode & locked in iOS 6? http://stackoverflow.com/questions/9725192/how-do-i-start-playing-audio-when-in-silent-mode-locked-in-ios-6 a notification which cant play sound in silent starting the app back up to play the audio or some other method Current Methods Implemented AVAudioPlayer using AudioSessionInitialize nil nil nil nil AudioSessionSetActive YES UInt32 sessionCategory..
|