¡@
2014/10/15 ¤U¤È 10:07:13
iphone Programming Glossary: doHow 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 have an Internet connection on the iPhone using the Cocoa Touch libraries. I came up with a way to do this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down.. this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying on a 3rd party seems bad and while I could check to see for a response from some other.. and while I could check to see for a response from some other websites if Google didn't respond it does seem wasteful and an unnecessary overhead on my application. BOOL connectedToInternet NSString URLString..
How to develop or migrate apps for iPhone 5 screen resolution? http://stackoverflow.com/questions/12395200/how-to-develop-or-migrate-apps-for-iphone-5-screen-resolution without it you will get 960 px with black margins on top and bottom . Test your app and hopefully do nothing else since everything should work magically if you had set auto resizing masks properly. If.. Auto Layout if you only want to support iOS 6 going forward. If there is something you have to do for the larger screen specifically then it looks like you have to check height of UIScreen mainScreen..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices want to create an application that runs on both iPhone 4 and 5 of course I have to build every window twice but I also have to detect whether the user has an iPhone with 3.5 or 4 screen and then apply.. 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.. of iOS so your views can adjust and adapt any screen size. That's not very hard read some documentation about that. It will save you a lot of time. iOS 6 also offers new features about this but..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone do I detect when someone shakes an iPhone I want to react when somebody shakes the iPhone. I don't particularly.. do I detect when someone shakes an iPhone I want to react when somebody shakes the iPhone. I don't particularly care how they shake it just that it was waved vigorously about for a split second. Does..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application do I associate file types with an iPhone application On the subject of associating your iPhone app with.. goes a step further and allows apps to associate with file types. There is a lot of talk in the documentation about how to set up your app to launch other appropriate apps when it encounters an unknown.. launch other appropriate apps when it encounters an unknown file type. This means the association doesn't work out of the box for any app like the URL protocol registering did. This leads me to the question..
http://stackoverflow.com/questions/3339722/check-iphone-ios-version is greater then the 3.1.3 I tried things like UIDevice currentDevice .systemVersion floatValue but does not work I just want a if version 3.1.3 How can I do this iphone version ios share improve this.. currentDevice .systemVersion floatValue but does not work I just want a if version 3.1.3 How can I do this iphone version ios share improve this question You can get the OS version using UIDevice currentDevice..
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.. 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 define a property in Objective C this is what.. 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..
Can I embed a custom font in an iPhone application? http://stackoverflow.com/questions/360751/can-i-embed-a-custom-font-in-an-iphone-application so I'm looking for a definitive answer. EDIT failed UIFont fontWithName size experiment I downloaded Harrowprint.tff downloaded from here and added it to my Resources directory and to the project... a definitive answer. EDIT failed UIFont fontWithName size experiment I downloaded Harrowprint.tff downloaded from here and added it to my Resources directory and to the project. I then tried this code.. name was Harrowprint. EDIT there have been a number of replies so far which tell me to read the documentation on X or Y. I've experimented extensively with all of these and got nowhere. In one case X..
How do I do base64 encoding on iphone-sdk? http://stackoverflow.com/questions/392464/how-do-i-do-base64-encoding-on-iphone-sdk do I do base64 encoding on iphone sdk I'd like to do base64 encoding and decoding but I could not find.. do I do base64 encoding on iphone sdk I'd like to do base64 encoding and decoding but I could not find any.. do I do base64 encoding on iphone sdk I'd like to do base64 encoding and decoding but I could not find any support from the iPhone SDK. How can I do base64..
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.. 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.. declare your delegate to implement that protocol see below. For example suppose you have an NSWindow. If you'd like to implement its delegate's windowDidMove method you could create a class like this..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now anyone suggest any ideas how we might handle this problem going forward The suggestion from the documentation is... Special Considerations Do not use the uniqueIdentifier property. To create a unique.. I guess the best bet is with en0 . The MAC is always present even if the interface has no IP is down. Edit 2 As was pointed out by others the preferred solution since iOS 6 is UIDevice identifierForVendor.. Edit 2 As was pointed out by others the preferred solution since iOS 6 is UIDevice identifierForVendor . In most cases you should be able use it as a drop in replacement to the old UIDevice uniqueIdentifier..
Retrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage For a completely black transparent area of the image I get non zero values for the alpha channel. Do I need to translate the co ordinates between UIKit and Core Graphics i.e is the y axis inverted Or have..
Delete/Reset all entries in Core Data? http://stackoverflow.com/questions/1077810/delete-reset-all-entries-in-core-data Reset all entries in Core Data Do you know of any way to delete all of the entries stored in Core Data My schema should stay the same..
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 ^ NSLog @ Someone broke the internet internetReachableFoo startNotifier METHOD 2 Do it yourself the old way using Apple's outdated Reachability class 1 Add SystemConfiguration framework..
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 the class of my UIView to a UIScrollView but I'm still unable to scroll the textboxes up or down. Do I need both a UIView and a UIScrollView Does one go inside the other EDIT I now know that you want a.. I'm still unable to scroll the textboxes up or down. Do I need both a UIView and a UIScrollView Does one go inside the other EDIT I now know that you want a UIView inside of a UIScrollView and the trick..
Programmatically Request Access to Contacts http://stackoverflow.com/questions/12648244/programmatically-request-access-to-contacts the screenshot below but it doesn't. Trying to add the contact just fails with ABAddressBookErrorDomain error 1 . Do I need to programmatically launch the access to contacts request dialog How is that.. below but it doesn't. Trying to add the contact just fails with ABAddressBookErrorDomain error 1 . Do I need to programmatically launch the access to contacts request dialog How is that done iphone objective..
http://stackoverflow.com/questions/3339722/check-iphone-ios-version available on the current device using NSClassFromString if NSClassFromString @ UIPopoverController Do something Some classes like CLLocationManager and UIDevice provide methods to check device capabilities.. 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 be absolute..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 Apple's latest Xcode prevents you from doing what he's done it simply will not work due to the Documented change in how Xcode processes targets Another SO questioner asked how to do it WITHOUT xcode.. of Frederik Wallner Added explicit setting of SYMROOT maybe need OBJROOT to be set too thanks to Doug Dickinson SCRIPT this is what you have to copy paste For usage install instructions see below ##########################################.. of your Universal Build. How to include non sourcecode files in your project PNG PLIST XML etc Do everything above check it works Create a new Run Script phase that comes AFTER THE FIRST ONE copy paste..
How can I replicate the trashing animation of Mail.app http://stackoverflow.com/questions/428110/how-can-i-replicate-the-trashing-animation-of-mail-app a custom made animation but there are some limits for example I cannot animate the bin itself. Do you have any suggestion Code samples Cheers Davide iphone cocoa touch share improve this question.. cameraIrisHollowClose cameraIrisHollowOpen rippleEffect charminUltra zoomyIn and zoomyOut. Doesn't work in the simulator. CATransition animation CATransition animation animation.type @ suckEffect..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll because so many of the examples are array based instead of CoreData. Here are some questions Do I need to have a second NSFetchedResultsController that retrieves only the matching items or can I use.. the FRC cache and then changing the predicate in the handleSearchForTerm searchString method Does the predicate have to contain the initial predicate as well as the search terms or does it remember.. it used a predicate to retrieve data in the first place How do I get back to the original results Do I just set the search predicate to nil Won't that kill the original predicate that was used to retrieve..
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request the synchronous request in a separate thread to avoid blocking the UI. Asynchronously void start Don't forget to set your NSURLConnection's delegate to handle the connection as follows void connection.. NSString responseText NSString alloc initWithData self.data encoding NSUTF8StringEncoding Do anything you want with it responseText release Handle basic authentication challenge if needed void..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers make your code less reusable And more difficult to debug test Ok. I'm down with that. Don't blindly toss all your methods that will be used for communicating between the viewcontroller into.. the GUI view objects. In other words BookPickerViewController DEPENDS on the BookWarehouse object. Don't do this @implementation BookPickerViewController void doSomething I need to do something with the.. initWithWarehouse initWithWarehouse andCheckoutController myCheckout ... bookPicker handleCheckout Do stuff to verify that BookPickerViewController correctly called MockCheckoutController's handleCheckout..
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 void childViewController ChildViewController viewController didChooseValue CGFloat value Do something with value... ...then dismiss the child view controller self.navigationController popViewControllerAnimated..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now uniqueIdentifier Deprecated What To Do Now It has just come to light that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and.. this problem going forward The suggestion from the documentation is... Special Considerations Do not use the uniqueIdentifier property. To create a unique identifier specific to your app you can call..
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 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 is drained..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample misunderstanding of how iCloud is supposed to work. When I create a new instance of an UIDocument I'll have to overwrite two methods. First BOOL loadFromContents id contents ofType NSString typeName.. and then id contentsForType NSString typeName error NSError outError to get files into the cloud. Do I have to incorporate separate functions which will also save a local copy of text.txt into my sandbox.. from the cloud AppDelegate.h iCloudText #import UIKit UIKit.h @class ViewController @class MyTextDocument @interface AppDelegate UIResponder UIApplicationDelegate NSMetadataQuery _query @property strong..
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 your experiences of ARC and would you recommend it So How much benefit can ARC bring to a project Does ARC have a cost like garbage collection in Java Have you been using ARC and if so how have you found.. c ipad ios5 automatic ref counting share improve this question There is no downside. Use it. Do it today. It is faster than your old code. It is safer than your old code. It is easier than your old..
How to know the UITableview row number http://stackoverflow.com/questions/9274494/how-to-know-the-uitableview-row-number share improve this question Tags subclasses or view hierarchy navigation are too much work . Do this in your action method CGPoint hitPoint sender convertPoint CGPointZero toView self.tableView NSIndexPath..
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 Connection on iPhone SDK I would like to check to see if I have an Internet connection on the iPhone using the Cocoa Touch libraries. I came up with a way to do this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying on a 3rd party seems bad and while I could check.. using the Cocoa Touch libraries. I came up with a way to do this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying on a 3rd party seems bad and while I could check to see for a response from some other websites if Google didn't respond it does seem wasteful and.. could one day be down and relying on a 3rd party seems bad and while I could check to see for a response from some other websites if Google didn't respond it does seem wasteful and an unnecessary overhead on my application. BOOL connectedToInternet NSString URLString NSString stringWithContentsOfURL NSURL URLWithString..
How to develop or migrate apps for iPhone 5 screen resolution? http://stackoverflow.com/questions/12395200/how-to-develop-or-migrate-apps-for-iphone-5-screen-resolution for your app. This is how you get 1136 px screen height without it you will get 960 px with black margins on top and bottom . Test your app and hopefully do nothing else since everything should work magically if you had set auto resizing masks properly. If you didn't adjust your view layouts with proper auto resizing.. your view layouts with proper auto resizing masks or look into Auto Layout if you only want to support iOS 6 going forward. If there is something you have to do for the larger screen specifically then it looks like you have to check height of UIScreen mainScreen bounds or applicationFrame but then you need to consider status..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices size to your view controller in the storyboard. Now if I want to create an application that runs on both iPhone 4 and 5 of course I have to build 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.. course I have to build 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 sizes. Use the auto resizing capabilities of iOS so your views can adjust and adapt any screen size. That's not very hard read some documentation about that. It will save you a lot of time. iOS 6 also offers new features about this but this is still under NDA at the moment. Be sure to read the..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone do I detect when someone shakes an iPhone I want to react when somebody shakes the iPhone. I don't particularly care how they shake it just that it was waved vigorously.. do I detect when someone shakes an iPhone I want to react when somebody shakes the iPhone. I don't particularly care how they shake it just that it was waved vigorously about for a split second. Does anyone know how to detect this iphone ios accelerometer..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application do I associate file types with an iPhone application On the subject of associating your iPhone app with file types. In this informative question I learned that apps.. ago and since then Apple introduced 'Document Support' which goes a step further and allows apps to associate with file types. There is a lot of talk in the documentation about how to set up your app to launch other appropriate apps when it encounters an unknown file type. This means the association doesn't work out of.. of talk in the documentation about how to set up your app to launch other appropriate apps when it encounters an unknown file type. This means the association doesn't work out of the box for any app like the URL protocol registering did. This leads me to the question have system apps like Safari or Mail implemented this..
http://stackoverflow.com/questions/3339722/check-iphone-ios-version Version I want to check if the iOS version of the device is greater then the 3.1.3 I tried things like UIDevice currentDevice .systemVersion floatValue but does not work I just want a if version 3.1.3 How can I do this iphone version ios share improve this question You can get the OS version using UIDevice currentDevice.. is greater then the 3.1.3 I tried things like UIDevice currentDevice .systemVersion floatValue but does not work I just want a if version 3.1.3 How can I do this iphone version ios share improve this question You can get the OS version using UIDevice currentDevice systemVersion However you should avoid relying..
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.. 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 define a property in Objective C this is what I naturally do. In the header @interface Whatever NSString myStringProperty.. 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 @synthesize myStringProperty..
Can I embed a custom font in an iPhone application? http://stackoverflow.com/questions/360751/can-i-embed-a-custom-font-in-an-iphone-application say straight out that it's not possible but without justification so I'm looking for a definitive answer. EDIT failed UIFont fontWithName size experiment I downloaded Harrowprint.tff downloaded from here and added it to my Resources directory and to the project. I then tried this code UIFont font UIFont fontWithName @.. not possible but without justification so I'm looking for a definitive answer. EDIT failed UIFont fontWithName size experiment I downloaded Harrowprint.tff downloaded from here and added it to my Resources directory and to the project. I then tried this code UIFont font UIFont fontWithName @ Harrowprint size 20 which.. Looking at the TTF file in Finder confirmed that the font name was Harrowprint. EDIT there have been a number of replies so far which tell me to read the documentation on X or Y. I've experimented extensively with all of these and got nowhere. In one case X turned out to be relevant only on OS X not on iPhone. Consequently..
How do I do base64 encoding on iphone-sdk? http://stackoverflow.com/questions/392464/how-do-i-do-base64-encoding-on-iphone-sdk do I do base64 encoding on iphone sdk I'd like to do base64 encoding and decoding but I could not find any support from the iPhone SDK. How can I do base64 encoding.. do I do base64 encoding on iphone sdk I'd like to do base64 encoding and decoding but I could not find any support from the iPhone SDK. How can I do base64 encoding and.. do I do base64 encoding on iphone sdk I'd like to do 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..
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.. 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.. in. Though with delegates that use a formal protocol you must declare your delegate to implement that protocol see below. For example suppose you have an NSWindow. If you'd like to implement its delegate's windowDidMove method you could create a class like this @implementation MyClass void windowDidMove NSNotification notification..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now property for uniquely identifying a particular device. Can anyone suggest any ideas how we might handle this problem going forward The suggestion from the documentation is... Special Considerations Do not use the uniqueIdentifier property. To create a unique identifier specific to your app you can call the CFUUIDCreate.. needs to always query the MAC of the same interface of course. I guess the best bet is with en0 . The MAC is always present even if the interface has no IP is down. Edit 2 As was pointed out by others the preferred solution since iOS 6 is UIDevice identifierForVendor . In most cases you should be able use it as a drop in.. is always present even if the interface has no IP is down. Edit 2 As was pointed out by others the preferred solution since iOS 6 is UIDevice identifierForVendor . In most cases you should be able use it as a drop in replacement to the old UIDevice uniqueIdentifier but a UUID that is created when the app starts for the..
Retrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage rawData byteIndex 3 However I don't get the values I expect. For a completely black transparent area of the image I get non zero values for the alpha channel. Do I need to translate the co ordinates between UIKit and Core Graphics i.e is the y axis inverted Or have I misunderstood premultiplied alpha values Update @Nikolai..
Delete/Reset all entries in Core Data? http://stackoverflow.com/questions/1077810/delete-reset-all-entries-in-core-data Reset all entries in Core Data Do you know of any way to delete all of the entries stored in Core Data My schema should stay the same I just want to reset it to blank. Edit I'm looking to do this..
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 Update the UI on the main thread dispatch_async dispatch_get_main_queue ^ NSLog @ Someone broke the internet internetReachableFoo startNotifier METHOD 2 Do it yourself the old way using Apple's outdated Reachability class 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere..
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 I know that I need a UIScrollView . I've tried changing the class of my UIView to a UIScrollView but I'm still unable to scroll the textboxes up or down. Do I need both a UIView and a UIScrollView Does one go inside the other EDIT I now know that you want a UIView inside of a UIScrollView and the trick is to programatically.. tried changing the class of my UIView to a UIScrollView but I'm still unable to scroll the textboxes up or down. Do I need both a UIView and a UIScrollView Does one go inside the other EDIT I now know that you want a UIView inside of a UIScrollView and the trick is to programatically set the content size of the UIScrollView..
Programmatically Request Access to Contacts http://stackoverflow.com/questions/12648244/programmatically-request-access-to-contacts to automatically ask permission to access contacts like in the screenshot below but it doesn't. Trying to add the contact just fails with ABAddressBookErrorDomain error 1 . Do I need to programmatically launch the access to contacts request dialog How is that done iphone objective c ios ios6 contacts share improve.. ask permission to access contacts like in the screenshot below but it doesn't. Trying to add the contact just fails with ABAddressBookErrorDomain error 1 . Do I need to programmatically launch the access to contacts request dialog How is that done iphone objective c ios ios6 contacts share improve this question As..
http://stackoverflow.com/questions/3339722/check-iphone-ios-version For example you can check if UIPopoverController is available 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.. 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 be absolute A system version of 3.1 or greater is required to use CADisplayLink...
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 and or BUILD_DIR instead of guesstimating them Apple's latest Xcode prevents you from doing what he's done it simply will not work due to the Documented change in how Xcode processes targets Another SO questioner asked how to do it WITHOUT xcode and with responses that focussed on the arm6 vs arm7 part but.. build setting for the location of the public headers courtesy of Frederik Wallner Added explicit setting of SYMROOT maybe need OBJROOT to be set too thanks to Doug Dickinson SCRIPT this is what you have to copy paste For usage install instructions see below ########################################## # # c.f. http stackoverflow.com.. Debug universal libTargetName.a ...that is the location of your Universal Build. How to include non sourcecode files in your project PNG PLIST XML etc Do everything above check it works Create a new Run Script phase that comes AFTER THE FIRST ONE copy paste the code below Create a new Target in Xcode of type bundle..
How can I replicate the trashing animation of Mail.app http://stackoverflow.com/questions/428110/how-can-i-replicate-the-trashing-animation-of-mail-app this animation ithrough the iPhone SDK Presently I am using a custom made animation but there are some limits for example I cannot animate the bin itself. Do you have any suggestion Code samples Cheers Davide iphone cocoa touch share improve this question Use the suckEffect type on an animation. Also spewEffect.. spewEffect genieEffect unGenieEffect twist tubey swirl cameraIris cameraIrisHollowClose cameraIrisHollowOpen rippleEffect charminUltra zoomyIn and zoomyOut. Doesn't work in the simulator. CATransition animation CATransition animation animation.type @ suckEffect animation.duration 2.0f animation.timingFunction UIViewAnimationCurveEaseInOut..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll I'm on the right path before I change too much code. I'm confused because so many of the examples are array based instead of CoreData. Here are some questions Do I need to have a second NSFetchedResultsController that retrieves only the matching items or can I use the same one as the primary TableView If I use the same one.. TableView If I use the same one is it as simple as clearing the FRC cache and then changing the predicate in the handleSearchForTerm searchString method Does the predicate have to contain the initial predicate as well as the search terms or does it remember that it used a predicate to retrieve data in the first place.. as well as the search terms or does it remember that it used a predicate to retrieve data in the first place How do I get back to the original results Do I just set the search predicate to nil Won't that kill the original predicate that was used to retrieve the FRC results in the first place If anyone has any examples..
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request variable that you can process. IMPORTANT Remember to kick off the synchronous request in a separate thread to avoid blocking the UI. Asynchronously void start Don't forget to set your NSURLConnection's delegate to handle the connection as follows void connection NSURLConnection connection didReceiveResponse NSURLResponse.. show void connectionDidFinishLoading NSURLConnection connection NSString responseText NSString alloc initWithData self.data encoding NSUTF8StringEncoding Do anything you want with it responseText release Handle basic authentication challenge if needed void connection NSURLConnection connection didReceiveAuthenticationChallenge..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers singletons This includes your application delegate Direct dependencies make your code less reusable And more difficult to debug test Ok. I'm down with that. Don't blindly toss all your methods that will be used for communicating between the viewcontroller into your app delegate and reference the viewcontroller instances.. brokering data between a model object BookWarehouse and the GUI view objects. In other words BookPickerViewController DEPENDS on the BookWarehouse object. Don't do this @implementation BookPickerViewController void doSomething I need to do something with the BookWarehouse so I'm going to look it up using the BookWarehouse.. bookPicker BookPickerViewController alloc initWithWarehouse initWithWarehouse andCheckoutController myCheckout ... bookPicker handleCheckout Do stuff to verify that BookPickerViewController correctly called MockCheckoutController's handleCheckout method and passed it a valid list of books ... share improve..
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 YES Implement the delegate methods for ChildViewControllerDelegate void childViewController ChildViewController viewController didChooseValue CGFloat value Do something with value... ...then dismiss the child view controller self.navigationController popViewControllerAnimated YES @end Hope this helps share improve this..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now uniqueIdentifier Deprecated What To Do Now It has just come to light that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and above. No alternative method or property appears to be available.. device. Can anyone suggest any ideas how we might handle this problem going forward The suggestion from the documentation is... Special Considerations Do not use the uniqueIdentifier property. To create a unique identifier specific to your app you can call the CFUUIDCreate function to create a UUID and write it to..
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 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 is drained attributed with ns_returns_autoreleased The call to methodForSelector..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample structure Sandbox vs. Cloud Perhaps my main problem is a fundamental misunderstanding of how iCloud is supposed to work. When I create a new instance of an UIDocument I'll have to overwrite two methods. First BOOL loadFromContents id contents ofType NSString typeName error NSError outError to get files from the cloud and.. typeName error NSError outError to get files from the cloud and then id contentsForType NSString typeName error NSError outError to get files into the cloud. Do I have to incorporate separate functions which will also save a local copy of text.txt into my sandbox Will this work for non iCloud users As I understand iCloud.. . 4 OVERVIEW The most important bit which loads the text.txt from the cloud AppDelegate.h iCloudText #import UIKit UIKit.h @class ViewController @class MyTextDocument @interface AppDelegate UIResponder UIApplicationDelegate NSMetadataQuery _query @property strong nonatomic UIWindow window @property strong nonatomic ViewController..
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 comes as a result outweigh any 'cost' of using ARC What are your experiences of ARC and would you recommend it So How much benefit can ARC bring to a project Does ARC have a cost like garbage collection in Java Have you been using ARC and if so how have you found it so far iphone objective c ipad ios5 automatic ref counting.. ARC and if so how have you found it so far iphone objective c ipad ios5 automatic ref counting share improve this question There is no downside. Use it. Do it today. It is faster than your old code. It is safer than your old code. It is easier than your old code. It is not garbage collection. It has no GC runtime cost...
How to know the UITableview row number http://stackoverflow.com/questions/9274494/how-to-know-the-uitableview-row-number switch value changed event. iphone ios uitableview uiswitch share improve this question Tags subclasses or view hierarchy navigation are too much work . Do this in your action method CGPoint hitPoint sender convertPoint CGPointZero toView self.tableView NSIndexPath hitIndex self.tableView indexPathForRowAtPoint hitPoint..
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 check to see if I have an Internet connection on the iPhone using the Cocoa Touch libraries. I came up with a way to do this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying on a.. up with a way to do this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying on a 3rd party seems bad and while I could check to see for a response from some other websites if Google.. 3rd party seems bad and while I could check to see for a response from some other websites if Google didn't respond it does seem wasteful and an unnecessary overhead on my application. BOOL connectedToInternet NSString URLString NSString stringWithContentsOfURL..
How to develop or migrate apps for iPhone 5 screen resolution? http://stackoverflow.com/questions/12395200/how-to-develop-or-migrate-apps-for-iphone-5-screen-resolution px screen height without it you will get 960 px with black margins on top and bottom . Test your app and hopefully do nothing else since everything should work magically if you had set auto resizing masks properly. If you didn't adjust your.. masks or look into Auto Layout if you only want to support iOS 6 going forward. If there is something you have to do for the larger screen specifically then it looks like you have to check height of UIScreen mainScreen bounds or applicationFrame..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices storyboard. Now if I want to create an application that runs on both iPhone 4 and 5 of course I have to build 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.. 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.. auto resizing capabilities of iOS so your views can adjust and adapt any screen size. That's not very hard read some documentation about that. It will save you a lot of time. iOS 6 also offers new features about this but this is still under..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone do I detect when someone shakes an iPhone I want to react when somebody shakes the iPhone. I don't particularly care how they.. do I detect when someone shakes an iPhone I want to react when somebody shakes the iPhone. I don't particularly care how they shake it just that it was waved vigorously about for a split second. Does anyone know how..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application do I associate file types with an iPhone application On the subject of associating your iPhone app with file types. In this.. Support' which goes a step further and allows apps to associate with file types. There is a lot of talk in the documentation about how to set up your app to launch other appropriate apps when it encounters an unknown file type. This means.. set up your app to launch other appropriate apps when it encounters an unknown file type. This means the association doesn't work out of the box for any app like the URL protocol registering did. This leads me to the question have system apps..
http://stackoverflow.com/questions/3339722/check-iphone-ios-version of the device is greater then the 3.1.3 I tried things like UIDevice currentDevice .systemVersion floatValue but does not work I just want a if version 3.1.3 How can I do this iphone version ios share improve this question You can.. like UIDevice currentDevice .systemVersion floatValue but does not work I just want a if version 3.1.3 How can I do this iphone version ios share improve this question You can get the OS version using UIDevice currentDevice systemVersion..
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.. 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 define a property in Objective C this is what I naturally do. In the.. 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..
Can I embed a custom font in an iPhone application? http://stackoverflow.com/questions/360751/can-i-embed-a-custom-font-in-an-iphone-application but without justification so I'm looking for a definitive answer. EDIT failed UIFont fontWithName size experiment I downloaded Harrowprint.tff downloaded from here and added it to my Resources directory and to the project. I then tried this.. so I'm looking for a definitive answer. EDIT failed UIFont fontWithName size experiment I downloaded Harrowprint.tff downloaded from here and added it to my Resources directory and to the project. I then tried this code UIFont font UIFont fontWithName.. that the font name was Harrowprint. EDIT there have been a number of replies so far which tell me to read the documentation on X or Y. I've experimented extensively with all of these and got nowhere. In one case X turned out to be relevant..
How do I do base64 encoding on iphone-sdk? http://stackoverflow.com/questions/392464/how-do-i-do-base64-encoding-on-iphone-sdk do I do base64 encoding on iphone sdk I'd like to do base64 encoding and decoding but I could not find any support from the.. do I do base64 encoding on iphone sdk I'd like to do base64 encoding and decoding but I could not find any support from the iPhone.. do I do base64 encoding on iphone sdk I'd like to do base64 encoding and decoding but I could not find any support from the iPhone SDK. How can I do base64 encoding and decoding..
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.. 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.. protocol you must declare your delegate to implement that protocol see below. For example suppose you have an NSWindow. If you'd like to implement its delegate's windowDidMove method you could create a class like this @implementation MyClass..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now particular device. Can anyone suggest any ideas how we might handle this problem going forward The suggestion from the documentation is... Special Considerations Do not use the uniqueIdentifier property. To create a unique identifier specific.. interface of course. I guess the best bet is with en0 . The MAC is always present even if the interface has no IP is down. Edit 2 As was pointed out by others the preferred solution since iOS 6 is UIDevice identifierForVendor . In most cases.. has no IP is down. Edit 2 As was pointed out by others the preferred solution since iOS 6 is UIDevice identifierForVendor . In most cases you should be able use it as a drop in replacement to the old UIDevice uniqueIdentifier but a UUID that..
Retrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage the values I expect. For a completely black transparent area of the image I get non zero values for the alpha channel. Do I need to translate the co ordinates between UIKit and Core Graphics i.e is the y axis inverted Or have I misunderstood..
Delete/Reset all entries in Core Data? http://stackoverflow.com/questions/1077810/delete-reset-all-entries-in-core-data Reset all entries in Core Data Do you know of any way to delete all of the entries stored in Core Data My schema should stay the same I just want to reset..
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 dispatch_get_main_queue ^ NSLog @ Someone broke the internet internetReachableFoo startNotifier METHOD 2 Do it yourself the old way using Apple's outdated Reachability class 1 Add SystemConfiguration framework to the project but..
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 I've tried changing the class of my UIView to a UIScrollView but I'm still unable to scroll the textboxes up or down. Do I need both a UIView and a UIScrollView Does one go inside the other EDIT I now know that you want a UIView inside of a.. to a UIScrollView but I'm still unable to scroll the textboxes up or down. Do I need both a UIView and a UIScrollView Does one go inside the other EDIT I now know that you want a UIView inside of a UIScrollView and the trick is to programatically..
Programmatically Request Access to Contacts http://stackoverflow.com/questions/12648244/programmatically-request-access-to-contacts contacts like in the screenshot below but it doesn't. Trying to add the contact just fails with ABAddressBookErrorDomain error 1 . Do I need to programmatically launch the access to contacts request dialog How is that done iphone objective.. in the screenshot below but it doesn't. Trying to add the contact just fails with ABAddressBookErrorDomain error 1 . Do I need to programmatically launch the access to contacts request dialog How is that done iphone objective c ios ios6 contacts..
http://stackoverflow.com/questions/3339722/check-iphone-ios-version is available 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.. 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 be absolute A system version..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 of guesstimating them Apple's latest Xcode prevents you from doing what he's done it simply will not work due to the Documented change in how Xcode processes targets Another SO questioner asked how to do it WITHOUT xcode and with responses.. headers courtesy of Frederik Wallner Added explicit setting of SYMROOT maybe need OBJROOT to be set too thanks to Doug Dickinson SCRIPT this is what you have to copy paste For usage install instructions see below ##########################################.. ...that is the location of your Universal Build. How to include non sourcecode files in your project PNG PLIST XML etc Do everything above check it works Create a new Run Script phase that comes AFTER THE FIRST ONE copy paste the code below Create..
How can I replicate the trashing animation of Mail.app http://stackoverflow.com/questions/428110/how-can-i-replicate-the-trashing-animation-of-mail-app Presently I am using a custom made animation but there are some limits for example I cannot animate the bin itself. Do you have any suggestion Code samples Cheers Davide iphone cocoa touch share improve this question Use the suckEffect.. tubey swirl cameraIris cameraIrisHollowClose cameraIrisHollowOpen rippleEffect charminUltra zoomyIn and zoomyOut. Doesn't work in the simulator. CATransition animation CATransition animation animation.type @ suckEffect animation.duration..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll much code. I'm confused because so many of the examples are array based instead of CoreData. Here are some questions Do I need to have a second NSFetchedResultsController that retrieves only the matching items or can I use the same one as the.. it as simple as clearing the FRC cache and then changing the predicate in the handleSearchForTerm searchString method Does the predicate have to contain the initial predicate as well as the search terms or does it remember that it used a predicate.. it remember that it used a predicate to retrieve data in the first place How do I get back to the original results Do I just set the search predicate to nil Won't that kill the original predicate that was used to retrieve the FRC results..
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request Remember to kick off the synchronous request in a separate thread to avoid blocking the UI. Asynchronously void start Don't forget to set your NSURLConnection's delegate to handle the connection as follows void connection NSURLConnection connection.. NSURLConnection connection NSString responseText NSString alloc initWithData self.data encoding NSUTF8StringEncoding Do anything you want with it responseText release Handle basic authentication challenge if needed void connection NSURLConnection..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers delegate Direct dependencies make your code less reusable And more difficult to debug test Ok. I'm down with that. Don't blindly toss all your methods that will be used for communicating between the viewcontroller into your app delegate and.. BookWarehouse and the GUI view objects. In other words BookPickerViewController DEPENDS on the BookWarehouse object. Don't do this @implementation BookPickerViewController void doSomething I need to do something with the BookWarehouse so I'm.. alloc initWithWarehouse initWithWarehouse andCheckoutController myCheckout ... bookPicker handleCheckout Do stuff to verify that BookPickerViewController correctly called MockCheckoutController's handleCheckout method and passed..
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 ChildViewControllerDelegate void childViewController ChildViewController viewController didChooseValue CGFloat value Do something with value... ...then dismiss the child view controller self.navigationController popViewControllerAnimated YES..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now uniqueIdentifier Deprecated What To Do Now It has just come to light that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and above. No alternative.. how we might handle this problem going forward The suggestion from the documentation is... Special Considerations Do not use the uniqueIdentifier property. To create a unique identifier specific to your app you can call the CFUUIDCreate..
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 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 is drained attributed with..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample main problem is a fundamental misunderstanding of how iCloud is supposed to work. When I create a new instance of an UIDocument I'll have to overwrite two methods. First BOOL loadFromContents id contents ofType NSString typeName error NSError.. files from the cloud and then id contentsForType NSString typeName error NSError outError to get files into the cloud. Do I have to incorporate separate functions which will also save a local copy of text.txt into my sandbox Will this work for.. loads the text.txt from the cloud AppDelegate.h iCloudText #import UIKit UIKit.h @class ViewController @class MyTextDocument @interface AppDelegate UIResponder UIApplicationDelegate NSMetadataQuery _query @property strong nonatomic UIWindow..
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 using ARC What are your experiences of ARC and would you recommend it So How much benefit can ARC bring to a project Does ARC have a cost like garbage collection in Java Have you been using ARC and if so how have you found it so far iphone.. far iphone objective c ipad ios5 automatic ref counting share improve this question There is no downside. Use it. Do it today. It is faster than your old code. It is safer than your old code. It is easier than your old code. It is not garbage..
How to know the UITableview row number http://stackoverflow.com/questions/9274494/how-to-know-the-uitableview-row-number uitableview uiswitch share improve this question Tags subclasses or view hierarchy navigation are too much work . Do this in your action method CGPoint hitPoint sender convertPoint CGPointZero toView self.tableView NSIndexPath hitIndex self.tableView..
cocos2d 2.0-rc2: end the director and restart http://stackoverflow.com/questions/11037134/cocos2d-2-0-rc2-end-the-director-and-restart HelloWorldLayer scene director_ setDelegate id CCDirectorDelegate UIApplication sharedApplication delegate I DO NOT PUSH BECAUSE I ALREADY PUSHED TO THIS CONTROLLER SO I ADD THE COCOS2D VIEW AS A SUBVIEW self.view addSubview director_..
iphone: secure restfull server "The certificate for this server is invalid http://stackoverflow.com/questions/12347410/iphone-secure-restfull-server-the-certificate-for-this-server-is-invalid completionHandler ^ NSURLResponse response NSData data NSError error if data length 0 error nil NSLog @ Data @ data DO YOUR WORK HERE else if data length 0 error nil NSLog @ Nothing was downloaded. else if error nil NSLog @ Error @ error..
http://stackoverflow.com/questions/12681702/ios-app-missing-screenshot came out and Apple is requiring screenshots for any apps you update I'm having problems with app submission What if I DO NOT want to have my app support the iPhone 5's big screen yet Can I still submit my app without the screen shots Cause apple..
Encrypted NSData to NSString in obj-c? http://stackoverflow.com/questions/1417893/encrypted-nsdata-to-nsstring-in-obj-c ways to implement this iphone objective c encryption nsstring nsdata share improve this question First off DO NOT use NSData description to create an NSString for such purposes. It's best to treat description as debugging output...
How to add a contact to the iPhone's Address Book from a Web Page? http://stackoverflow.com/questions/1773876/how-to-add-a-contact-to-the-iphones-address-book-from-a-web-page from Dataplex. Jonas Schmid talks about serving the file types correctly. MacRumours thread Then I got thinking iPhone DOES support vcalendar files downloaded from a webpage as of IOS5. The VCALENDAR files usually have a .ics extension and are.. step is only necessary to understand the format of the file created when an attachment is added to a calendar item you DO NOT need to install BusyCal to implement the solution described below but I include it for reference so that you can see..
http://stackoverflow.com/questions/1857414/signer-not-valid-error Did you add Entitlements Put the signing at the Target level not the Project level Select the Ad Hoc profile DO a clean prior to the build Select the Ad Hoc Device foe the build The best bet is to follow Apple's documentation exactly..
iPhone: how to get safari to recognize a vcard? http://stackoverflow.com/questions/1892373/iphone-how-to-get-safari-to-recognize-a-vcard from Dataplex. Jonas Schmid talks about serving the file types correctly. MacRumours thread Then I got thinking iPhone DOES support vcalendar files downloaded from a webpage as of IOS5. The VCALENDAR files usually have a .ics extension and are.. step is only necessary to understand the format of the file created when an attachment is added to a calendar item you DO NOT need to install BusyCal to implement the solution described below but I include it for reference so that you can see..
Multiple annotation callouts displaying in MKMapView http://stackoverflow.com/questions/2417952/multiple-annotation-callouts-displaying-in-mkmapview invoke it anyway with setSelected YES on several MKAnnotationView instances to see what it gives THE CLEAN WAY I WOULD DO IT not tested myself however don't rely on the selection mechanism of the MKMapView subclass the MKAnnotationView to implement..
How to identify WHICH NSURLConnection did finish loading when there are multiple ones? http://stackoverflow.com/questions/2476302/how-to-identify-which-nsurlconnection-did-finish-loading-when-there-are-multiple I wanna do stuff with the data depending on the type of data that has arrived. But one prob HOW DO I KNOW WHICH NSURLConnection returned I need to know so I can take action specific to the type of data that came. Eg. display..
Is it a problem when an iAd may be obscured? http://stackoverflow.com/questions/4160010/is-it-a-problem-when-an-iad-may-be-obscured delegate message you'll have to implement some kind of control structure on your own to handle when if at all you DO move it onscreen at which point it will begin asking the ad server for more ads and you'll get more delegate messages and..
http://stackoverflow.com/questions/4194394/client-server-gksessions it's necessary as a first step to know how to not use the P2P system in GK that is explained above in length. If you DO want to use the P2P system you're all set go for it GK is fantastic if you can figure out all the subtleties. With GK and..
What's the difference between setting an object to nil vs. sending it a release message in dealloc http://stackoverflow.com/questions/4212628/whats-the-difference-between-setting-an-object-to-nil-vs-sending-it-a-release decade is really now only of historic interest. Today one has to learn to use ARC. Cheers The very short answer is DO NOT just set it to nil. You must release it. Setting it to nil has no connection to releasing it. You must release it. However..
NSRegularExpression to validate URL http://stackoverflow.com/questions/4738521/nsregularexpression-to-validate-url 1 or more times ^ s non white spaces 0 or more times optionally @ @ optional Private IP Addresses Means DO NOT MATCH ahead. So do not match any of the following 10 10 10.0.0.0 10.999.999.999 . d 1 3 . 1 to 3 digits three..
Facebook iOS Safari “Cannot Open Page Error” When Authenticating User with Single-Sign-On http://stackoverflow.com/questions/5131178/facebook-ios-safari-cannot-open-page-error-when-authenticating-user-with-singl my successfully logged in. If I uninstall DemoApp and try again with my application I get the Safari error. WHAT CAN I DO TO SOLVE THIS Any help would be great I'm banging my head here. My info.plist xml version 1.0 encoding UTF 8 DOCTYPE plist.. CAN I DO TO SOLVE THIS Any help would be great I'm banging my head here. My info.plist xml version 1.0 encoding UTF 8 DOCTYPE plist PUBLIC Apple DTD PLIST 1.0 EN http www.apple.com DTDs PropertyList 1.0.dtd plist version 1.0 dict key CFBundleURLTypes..
Can you use cancel/isCancelled with GCD/dispatch_async? http://stackoverflow.com/questions/5449469/can-you-use-cancel-iscancelled-with-gcd-dispatch-async we are actually in the BG here... self setUpHere set up any variables contexts etc you need right here DO NOT open any variables contexts etc in buildGuts when you return back here after buildGuts CLEAN UP those variables contexts..
UIViewController rotate methods http://stackoverflow.com/questions/548142/uiviewcontroller-rotate-methods or the active navigation controller . The problem you will have is if you build an app with multiple views but DO NOT use a Navigation controller or Tab Bar controller. If you swap views in and out of the UIWindow instance manually you..
If you have an IBOutlet, but not a property, is it retained or not? http://stackoverflow.com/questions/5523290/if-you-have-an-iboutlet-but-not-a-property-is-it-retained-or-not when BigView goes away I would certainly assume this is the case but who knows The question is what happens if you DO use an IBOutlet iVar but NOT a property... I've foolishly never thought about this before assumed too much does anyone have..
http://stackoverflow.com/questions/5997708/uitextview-inside-uitableview I can't seem to find what I want. I have a section in my app where I have a tableview with a textview inside of it. I DO NOT want to have a seperate .xib .h and .m files for the tableview cell. The tableview does not need to shrink or grow depending..
How do I add a scrollable/zoomable image into the MainView.xib of a Utility Based iPhone Application http://stackoverflow.com/questions/8275234/how-do-i-add-a-scrollable-zoomable-image-into-the-mainview-xib-of-a-utility-base I see it fitting to do a full tutorial I'm bored let's do this . Open up Xcode and start a new Utilities based project DO NOT TRASH THE OLD ONE and name it 'PinchZoomingImages' without the quotes . Make sure ARC is turned OFF I like to code the..
Stop the touchstart performing too quick when scrolling http://stackoverflow.com/questions/9842587/stop-the-touchstart-performing-too-quick-when-scrolling Jq 1.7... on other versions you can use .bind function nextEvent behaviour for end this .on 'touchend' function e DO STUFF this .off 'touchend' behaviour for move this .on 'touchmove' function e this .off 'touchend' 'div a span' .filter..
|