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2014/10/15 ¤U¤Č 10:13:29
iphone Programming Glossary: rightHow to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw new window pops up. Select global breakpoints in the left hand menu. There should be a box on the right under the Breakpoint column with the text Double Click for symbol . Single click in this box and type..
How to use NSzombie in xcode? [duplicate] http://stackoverflow.com/questions/1211923/how-to-use-nszombie-in-xcode 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..
iPhone viewWillAppear not firing http://stackoverflow.com/questions/131062/iphone-viewwillappear-not-firing about people having problems with viewWillAppear when you do not create your view hierarchy just right. My problem is I can't figure out what that means. If I create a RootViewController and call addSubView..
Uploading and downloading via ftp with iPhone SDK http://stackoverflow.com/questions/1354012/uploading-and-downloading-via-ftp-with-iphone-sdk to and downloading form and ftp server with the iPhone SDK. If you could just point me in the right direction e.g. documentation etc. . How difficult is a task like this Thanks in advance. iphone share..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone Encryption for an NSString on the iPhone Can anybody point me in the right direction to be able to encrypt a string returning another string with the encrypted data I've been..
How to customize the callout bubble for MKAnnotationView? http://stackoverflow.com/questions/1565828/how-to-customize-the-callout-bubble-for-mkannotationview . I want to be able to control the callout itself the mapkit only provides access to the left and right ancillary callout views but no way to provide a custom view for the callout bubble or to give it zero..
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 puts all your unexpected files in the wrong place. Build the project Click on the last icon on the right in the top left area of Xcode4. Select the top item this is your most recent build . Apple should auto..
How to determine the content size of a UIWebView? http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview fitting size. This sounds terrible but it's actually not that bad. Since we do both frame changes right after each other the view isn't updated and doesn't flicker. Of course we have to wait until the content..
“Warning: iPhone apps should include an armv6 architecture” even with build config set http://stackoverflow.com/questions/4198676/warning-iphone-apps-should-include-an-armv6-architecture-even-with-build-conf your Project name in the left column followed by the Target Click the 'Build Settings' tab in the right column Click the 'Release' or 'Distribution' row under 'Architectures' and choose 'Other...' Double..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll with a predicate to retrieve the data for the primary TableView. I want to make sure 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..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers the multiple viewcontroller instances in my appdelegate but I want to do this sort of thing the right way. Please help me do the right thing by answering the following questions When I am trying to push.. in my appdelegate but I want to do this sort of thing the right way. Please help me do the right thing by answering the following questions When I am trying to push a new viewcontroller on the UINavigationController.. of an iVar in one of my UIViewControllers when I am in a different UIViewController what is the right way to do this Give that we can only have one delegate set at a time in an object what would the implementation..
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root uitabbarcontroller uinavigationbar share improve this question The two previous answers got it right I don't use UITabBarController in Tweetie. It's pretty easy to write a custom XXTabBarController plain..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop bashing my face into this one for literally days now and even though I feel constantly that I am right on the edge of revelation I simply cannot achieve my goal. I thought ahead of time in the conceptual..
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 of assigning the locale and possibly also a format string so you'd have a ready to use formatter right after initializing it. @interface NSDateFormatter LocaleAdditions id initWithPOSIXLocaleAndFormat NSString..
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 self and _cmd of every Objective C method call . This is handled in the third line the void on the right hand side simply tells the compiler that you know what you're doing and not to generate a warning since.. about anything. I checked this a year a so ago by looking at the source but don't have a reference right now. Suppression In trying to think of a situation where suppression of this warning would be necessary..
Has anyone implemented the PayPal API through a native iPhone app? http://stackoverflow.com/questions/779423/has-anyone-implemented-the-paypal-api-through-a-native-iphone-app complete the transaction there otherwise the user would need to use their API key. Does this sound right and has anyone got or seen any sample code I have to think this is a common piece of code. UPDATE Will..
How do I change the title of the “back” button on a Navigation Bar http://stackoverflow.com/questions/1449339/how-do-i-change-the-title-of-the-back-button-on-a-navigation-bar answer This should be placed in the method that calls the ViewController titled NewTitle . Right before the push or popViewController statement. UIBarButtonItem newBackButton UIBarButtonItem alloc..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how that particular corner. I am having some difficulty in applying rounded corners to the UIView. Right now I am using following code to apply the rounded corners to each corner of view. Here it is. imgVUserImg..
Preserve HTML font-size when iPhone orientation changes from portrait to landscape http://stackoverflow.com/questions/2710764/preserve-html-font-size-when-iphone-orientation-changes-from-portrait-to-landsca DON'T change size when viewed on an iPhone and the accellerometer switches from portrait landscape Right now I have the hyperlink font size spec'ed to 14px but when switching to landscape it blows way up to..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions UIInterfaceOrientation orientation return orientation UIInterfaceOrientationLandscapeRight This is the absolute minimum your view controller needs to do. If you want to launch your application.. key to your .plist file key UIInterfaceOrientation key string UIInterfaceOrientationLandscapeRight string Apple recommends starting landscape only applications in Landscape Right mode see the HIG under.. string Apple recommends starting landscape only applications in Landscape Right mode see the HIG under User Experience Guidelines Start Instantly . What's not in the documentation..
HTML5 inline video on iPhone vs iPad/Browser http://stackoverflow.com/questions/3699552/html5-inline-video-on-iphone-vs-ipad-browser get it working like on the ipad Cheers iphone ipad video html5 share improve this question Right I was going nowhere with this and filed a bug with Apple. After a couple of weeks they got back to me..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app . Save clean and build the project. In Groups Files find the folder MyApp Products and expand it. Right click the app and select Reveal in Finder . Zip the .app file and the .mobileprovision file and send..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload calculate the proper transformation to make the image upright. We do it in 2 steps Rotate if Left Right Down and then flip if Mirrored. CGAffineTransform transform CGAffineTransformIdentity switch self.imageOrientation.. self.size.width 0 transform CGAffineTransformRotate transform M_PI_2 break case UIImageOrientationRight case UIImageOrientationRightMirrored transform CGAffineTransformTranslate transform 0 self.size.height.. CGAffineTransformRotate transform M_PI_2 break case UIImageOrientationRight case UIImageOrientationRightMirrored transform CGAffineTransformTranslate transform 0 self.size.height transform CGAffineTransformRotate..
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root when selecting a different account would probably be a pain. How should I implement this the Right Way ^1 The tab bar controller needs to be subclassed so that the tab bar controller's navigation item..
Is there a way to pass touches through on the iPhone? http://stackoverflow.com/questions/631427/is-there-a-way-to-pass-touches-through-on-the-iphone on to the main view when touching the UIButtons but also should send the button press action. Right now I have the touch up inside changing the control. The drag exit calls the touch up inside section..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample save anything into the 'old' sandbox of my app i.e. as it used to be in the old pre iCloud days . Right now my sandbox is totally empty but I don't know if this is correct. Should I keep another copy of text.txt..
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw In XCode from the top menu click on Run Show Breakpoints. A new window pops up. Select global breakpoints in the left hand menu. There should be a box on the right under the Breakpoint column with the text Double Click for symbol . Single click in this box and type in objc_exception_throw . Then single click in the space next..
How to use NSzombie in xcode? [duplicate] http://stackoverflow.com/questions/1211923/how-to-use-nszombie-in-xcode the scheme you want 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 could in Xcode 3. In Xcode 4.1 and above there's also checkbox..
iPhone viewWillAppear not firing http://stackoverflow.com/questions/131062/iphone-viewwillappear-not-firing viewWillAppear not firing I've read numerous posts about people having problems with viewWillAppear when you do not create your view hierarchy just right. My problem is I can't figure out what that means. If I create a RootViewController and call addSubView on that controller I would expect the added view s to be..
Uploading and downloading via ftp with iPhone SDK http://stackoverflow.com/questions/1354012/uploading-and-downloading-via-ftp-with-iphone-sdk iPhone SDK Could anybody explain to me the process of uploading to and downloading form and ftp server with the iPhone SDK. If you could just point me in the right direction e.g. documentation etc. . How difficult is a task like this Thanks in advance. iphone share improve this question The Apple documentation will provide..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone Encryption for an NSString on the iPhone Can anybody point me in the right direction to be able to encrypt a string returning another string with the encrypted data I've been trying with AES256 encryption. I want to write a method which..
How to customize the callout bubble for MKAnnotationView? http://stackoverflow.com/questions/1565828/how-to-customize-the-callout-bubble-for-mkannotationview with the title subtitle when the annotation icon is touched . I want to be able to control the callout itself the mapkit only provides access to the left and right ancillary callout views but no way to provide a custom view for the callout bubble or to give it zero size or anything else. My idea was to override selectAnnotation..
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 using a custom build output directory for XCode4 then XCode puts all your unexpected files in the wrong place. Build the project Click on the last icon on the right in the top left area of Xcode4. Select the top item this is your most recent build . Apple should auto select it but they didn't think of that in the main window..
How to determine the content size of a UIWebView? http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview . After that we can correct the wrong frame size by the fitting size. This sounds terrible but it's actually not that bad. Since we do both frame changes right after each other the view isn't updated and doesn't flicker. Of course we have to wait until the content has been loaded so we put the code into the webViewDidFinishLoad..
“Warning: iPhone apps should include an armv6 architecture” even with build config set http://stackoverflow.com/questions/4198676/warning-iphone-apps-should-include-an-armv6-architecture-even-with-build-conf If using Xcode 4.2 or higher try the following Click your Project name in the left column followed by the Target Click the 'Build Settings' tab in the right column Click the 'Release' or 'Distribution' row under 'Architectures' and choose 'Other...' Double click the highlighted row named ' ARCHS_STANDARD_32_BIT ' in..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll to proceed. The app already has an NSFetchedResultsController with a predicate to retrieve the data for the primary TableView. I want to make sure 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..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers do my communication methods in the app delegate by reference's the multiple viewcontroller instances in my appdelegate but I want to do this sort of thing the right way. Please help me do the right thing by answering the following questions When I am trying to push a new viewcontroller on the UINavigationController stack who.. app delegate by reference's the multiple viewcontroller instances in my appdelegate but I want to do this sort of thing the right way. Please help me do the right thing by answering the following questions When I am trying to push a new viewcontroller on the UINavigationController stack who should be doing this push. Which.. correct place When I want to affect some piece of data value of an iVar in one of my UIViewControllers when I am in a different UIViewController what is the right way to do this Give that we can only have one delegate set at a time in an object what would the implementation look like for when the lecturer says Define a generic..
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root instead of self.navigationController . iphone cocoa touch uitabbarcontroller uinavigationbar share improve this question The two previous answers got it right I don't use UITabBarController in Tweetie. It's pretty easy to write a custom XXTabBarController plain subclass of UIViewController that is happy to get pushed..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop Resize then Crop I've been bashing my face into this one for literally days now and even though I feel constantly that I am right on the edge of revelation I simply cannot achieve my goal. I thought ahead of time in the conceptual phases of my design that it would be a trivial matter to grab..
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 category with an additional initializer that takes care of assigning the locale and possibly also a format string so you'd have a ready to use formatter right after initializing it. @interface NSDateFormatter LocaleAdditions id initWithPOSIXLocaleAndFormat NSString formatString @end @implementation NSDateFormatter LocaleAdditions..
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 that ARC needs including the two implicit hidden arguments self and _cmd of every Objective C method call . This is handled in the third line the void on the right hand side simply tells the compiler that you know what you're doing and not to generate a warning since the pointer types don't match . Finally you call the function.. during compilation. It doesn't need to make any assumptions about anything. I checked this a year a so ago by looking at the source but don't have a reference right now. Suppression In trying to think of a situation where suppression of this warning would be necessary and good code design I'm coming up blank. Someone please..
Has anyone implemented the PayPal API through a native iPhone app? http://stackoverflow.com/questions/779423/has-anyone-implemented-the-paypal-api-through-a-native-iphone-app them a UIWebView of the paypal mobile site and let them complete the transaction there otherwise the user would need to use their API key. Does this sound right and has anyone got or seen any sample code I have to think this is a common piece of code. UPDATE Will Apple allow this It is a charity app so I am assuming there..
How do I change the title of the “back” button on a Navigation Bar http://stackoverflow.com/questions/1449339/how-do-i-change-the-title-of-the-back-button-on-a-navigation-bar improve this question I edited this to provide the definitive answer This should be placed in the method that calls the ViewController titled NewTitle . Right before the push or popViewController statement. UIBarButtonItem newBackButton UIBarButtonItem alloc initWithTitle @ NewTitle style UIBarButtonItemStyleBordered..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how on top left button. Above image view should be rounded from that particular corner. I am having some difficulty in applying rounded corners to the UIView. Right now I am using following code to apply the rounded corners to each corner of view. Here it is. imgVUserImg is a image view on IB. imgVUserImg.image UIImage imageWithData..
Preserve HTML font-size when iPhone orientation changes from portrait to landscape http://stackoverflow.com/questions/2710764/preserve-html-font-size-when-iphone-orientation-changes-from-portrait-to-landsca question is how can I format the hyperlinks so that they DON'T change size when viewed on an iPhone and the accellerometer switches from portrait landscape Right now I have the hyperlink font size spec'ed to 14px but when switching to landscape it blows way up to like 20px. I want the font size to stay the same. Here is..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions device orientation changes. BOOL shouldAutorotateToInterfaceOrientation UIInterfaceOrientation orientation return orientation UIInterfaceOrientationLandscapeRight This is the absolute minimum your view controller needs to do. If you want to launch your application in landscape mode you need to add the following key to your.. your application in landscape mode you need to add the following key to your .plist file key UIInterfaceOrientation key string UIInterfaceOrientationLandscapeRight string Apple recommends starting landscape only applications in Landscape Right mode see the HIG under User Experience Guidelines Start Instantly . What's not in.. file key UIInterfaceOrientation key string UIInterfaceOrientationLandscapeRight string Apple recommends starting landscape only applications in Landscape Right mode see the HIG under User Experience Guidelines Start Instantly . What's not in the documentation A little background Everytime you try to load a different view..
HTML5 inline video on iPhone vs iPad/Browser http://stackoverflow.com/questions/3699552/html5-inline-video-on-iphone-vs-ipad-browser to override Apple's control of HTML5 video on the iphone and get it working like on the ipad Cheers iphone ipad video html5 share improve this question Right I was going nowhere with this and filed a bug with Apple. After a couple of weeks they got back to me saying very simply that I should add webkit playsinline to..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app Signing Entitlements enter the file name Entitlements.plist . Save clean and build the project. In Groups Files find the folder MyApp Products and expand it. Right click the app and select Reveal in Finder . Zip the .app file and the .mobileprovision file and send the archive to your tester. Here is my app. To install it onto..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload UIImageOrientationUp return self We need to calculate the proper transformation to make the image upright. We do it in 2 steps Rotate if Left Right Down and then flip if Mirrored. CGAffineTransform transform CGAffineTransformIdentity switch self.imageOrientation case UIImageOrientationDown case UIImageOrientationDownMirrored.. transform CGAffineTransformTranslate transform self.size.width 0 transform CGAffineTransformRotate transform M_PI_2 break case UIImageOrientationRight case UIImageOrientationRightMirrored transform CGAffineTransformTranslate transform 0 self.size.height transform CGAffineTransformRotate transform M_PI_2 break.. transform self.size.width 0 transform CGAffineTransformRotate transform M_PI_2 break case UIImageOrientationRight case UIImageOrientationRightMirrored transform CGAffineTransformTranslate transform 0 self.size.height transform CGAffineTransformRotate transform M_PI_2 break case UIImageOrientationUp case..
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root to remove it from the first. Not to mention all the book keeping when selecting a different account would probably be a pain. How should I implement this the Right Way ^1 The tab bar controller needs to be subclassed so that the tab bar controller's navigation item at that level stays in sync with the selected tab's navigation..
Is there a way to pass touches through on the iPhone? http://stackoverflow.com/questions/631427/is-there-a-way-to-pass-touches-through-on-the-iphone essentially the touchesBegan and touchesMoved should be passed on to the main view when touching the UIButtons but also should send the button press action. Right now I have the touch up inside changing the control. The drag exit calls the touch up inside section to set the control then calls the touches began section to..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample automatically. So there shouldn't be any need for me save anything into the 'old' sandbox of my app i.e. as it used to be in the old pre iCloud days . Right now my sandbox is totally empty but I don't know if this is correct. Should I keep another copy of text.txt in there This feels like cluttering my data structure.....
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw Show Breakpoints. A new window pops up. Select global breakpoints in the left hand menu. There should be a box on the right under the Breakpoint column with the text Double Click for symbol . Single click in this box and type in objc_exception_throw..
How to use NSzombie in xcode? [duplicate] http://stackoverflow.com/questions/1211923/how-to-use-nszombie-in-xcode 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 could in Xcode 3...
iPhone viewWillAppear not firing http://stackoverflow.com/questions/131062/iphone-viewwillappear-not-firing read numerous posts about people having problems with viewWillAppear when you do not create your view hierarchy just right. My problem is I can't figure out what that means. If I create a RootViewController and call addSubView on that controller..
Uploading and downloading via ftp with iPhone SDK http://stackoverflow.com/questions/1354012/uploading-and-downloading-via-ftp-with-iphone-sdk the process of uploading to and downloading form and ftp server with the iPhone SDK. If you could just point me in the right direction e.g. documentation etc. . How difficult is a task like this Thanks in advance. iphone share improve this question..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone Encryption for an NSString on the iPhone Can anybody point me in the right direction to be able to encrypt a string returning another string with the encrypted data I've been trying with AES256 encryption...
How to customize the callout bubble for MKAnnotationView? http://stackoverflow.com/questions/1565828/how-to-customize-the-callout-bubble-for-mkannotationview icon is touched . I want to be able to control the callout itself the mapkit only provides access to the left and right ancillary callout views but no way to provide a custom view for the callout bubble or to give it zero size or anything else...
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 XCode4 then XCode puts all your unexpected files in the wrong place. Build the project Click on the last icon on the right in the top left area of Xcode4. Select the top item this is your most recent build . Apple should auto select it but they..
How to determine the content size of a UIWebView? http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview frame size by the fitting size. This sounds terrible but it's actually not that bad. Since we do both frame changes right after each other the view isn't updated and doesn't flicker. Of course we have to wait until the content has been loaded..
“Warning: iPhone apps should include an armv6 architecture” even with build config set http://stackoverflow.com/questions/4198676/warning-iphone-apps-should-include-an-armv6-architecture-even-with-build-conf the following Click your Project name in the left column followed by the Target Click the 'Build Settings' tab in the right column Click the 'Release' or 'Distribution' row under 'Architectures' and choose 'Other...' Double click the highlighted..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll with a predicate to retrieve the data for the primary TableView. I want to make sure 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..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers by reference's the multiple viewcontroller instances in my appdelegate but I want to do this sort of thing the right way. Please help me do the right thing by answering the following questions When I am trying to push a new viewcontroller.. viewcontroller instances in my appdelegate but I want to do this sort of thing the right way. Please help me do the right thing by answering the following questions When I am trying to push a new viewcontroller on the UINavigationController stack.. piece of data value of an iVar in one of my UIViewControllers when I am in a different UIViewController what is the right way to do this Give that we can only have one delegate set at a time in an object what would the implementation look like..
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root iphone cocoa touch uitabbarcontroller uinavigationbar share improve this question The two previous answers got it right I don't use UITabBarController in Tweetie. It's pretty easy to write a custom XXTabBarController plain subclass of UIViewController..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop then Crop I've been bashing my face into this one for literally days now and even though I feel constantly that I am right on the edge of revelation I simply cannot achieve my goal. I thought ahead of time in the conceptual phases of my design..
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 that takes care of assigning the locale and possibly also a format string so you'd have a ready to use formatter right after initializing it. @interface NSDateFormatter LocaleAdditions id initWithPOSIXLocaleAndFormat NSString formatString..
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 hidden arguments self and _cmd of every Objective C method call . This is handled in the third line the void on the right hand side simply tells the compiler that you know what you're doing and not to generate a warning since the pointer types.. any assumptions about anything. I checked this a year a so ago by looking at the source but don't have a reference right now. Suppression In trying to think of a situation where suppression of this warning would be necessary and good code design..
Has anyone implemented the PayPal API through a native iPhone app? http://stackoverflow.com/questions/779423/has-anyone-implemented-the-paypal-api-through-a-native-iphone-app site and let them complete the transaction there otherwise the user would need to use their API key. Does this sound right and has anyone got or seen any sample code I have to think this is a common piece of code. UPDATE Will Apple allow this..
How do I change the title of the “back” button on a Navigation Bar http://stackoverflow.com/questions/1449339/how-do-i-change-the-title-of-the-back-button-on-a-navigation-bar to provide the definitive answer This should be placed in the method that calls the ViewController titled NewTitle . Right before the push or popViewController statement. UIBarButtonItem newBackButton UIBarButtonItem alloc initWithTitle @ NewTitle..
Get directory contents in date modified order http://stackoverflow.com/questions/1523793/get-directory-contents-in-date-modified-order in a particular order I'd like an array of file attribute dictionaries or just file names ordered by date modified. Right now I'm doing it this way get an array with the file names get the attributes of each file store the file's path and modified..
iPhone Curl Left and Curl Right transitions http://stackoverflow.com/questions/1625375/iphone-curl-left-and-curl-right-transitions Curl Left and Curl Right transitions I am looking for a way to do a UIViewAnimationTransitionCurlUp or UIViewAnimationTransitionCurlDown transition..
http://stackoverflow.com/questions/1762555/creating-pem-file-for-apns filter by the Certificates category. You will see an expandable option called Apple Development Push Services li Right click on Apple Development Push Services Export Apple Development Push Services ID123 Save this as apns dev cert.p12 file..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how should be rounded from that particular corner. I am having some difficulty in applying rounded corners to the UIView. Right now I am using following code to apply the rounded corners to each corner of view. Here it is. imgVUserImg is a image view..
Preserve HTML font-size when iPhone orientation changes from portrait to landscape http://stackoverflow.com/questions/2710764/preserve-html-font-size-when-iphone-orientation-changes-from-portrait-to-landsca so that they DON'T change size when viewed on an iPhone and the accellerometer switches from portrait landscape Right now I have the hyperlink font size spec'ed to 14px but when switching to landscape it blows way up to like 20px. I want..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions UIInterfaceOrientation orientation return orientation UIInterfaceOrientationLandscapeRight This is the absolute minimum your view controller needs to do. If you want to launch your application in landscape mode.. need to add the following key to your .plist file key UIInterfaceOrientation key string UIInterfaceOrientationLandscapeRight string Apple recommends starting landscape only applications in Landscape Right mode see the HIG under User Experience Guidelines.. string UIInterfaceOrientationLandscapeRight string Apple recommends starting landscape only applications in Landscape Right mode see the HIG under User Experience Guidelines Start Instantly . What's not in the documentation A little background..
Xcode: Unable to open project… cannot be opened because the project file cannot be parsed http://stackoverflow.com/questions/361799/xcode-unable-to-open-project-cannot-be-opened-because-the-project-file-canno iphone xcode share improve this question I came across this problem and my senior told me about a solution i.e Right click on your projectname.xcodeproj file here projectname will be the name of your project. Now after right clicked select..
HTML5 inline video on iPhone vs iPad/Browser http://stackoverflow.com/questions/3699552/html5-inline-video-on-iphone-vs-ipad-browser on the iphone and get it working like on the ipad Cheers iphone ipad video html5 share improve this question Right I was going nowhere with this and filed a bug with Apple. After a couple of weeks they got back to me saying very simply..
How do I open the Settings application from my application? http://stackoverflow.com/questions/377102/how-do-i-open-the-settings-application-from-my-application to enter some configuration via the settings application before my app will be able to connect to a server and run. Right now when the user first launches my app I display an alert explaining that the user should go to settings enter the config..
How to Manually Symbolicate iOS Crash to View Crash Logs http://stackoverflow.com/questions/3832900/how-to-manually-symbolicate-ios-crash-to-view-crash-logs You must have the archive that was used to create the build with the crash to get the dSYM file. Here are the steps Right click or ctrl click the archive from organizer and choose Show in Finder . From the xcarchive file in finder right click..
Blocks instead of performSelector:withObject:afterDelay: [duplicate] http://stackoverflow.com/questions/4007023/blocks-instead-of-performselectorwithobjectafterdelay withObject afterDelay 10 answers I often want to execute some code a few microseconds in the future. Right now I solve it like this void someMethod some code And this self performSelector @selector someMethod withObject nil afterDelay..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app Entitlements.plist . Save clean and build the project. In Groups Files find the folder MyApp Products and expand it. Right click the app and select Reveal in Finder . Zip the .app file and the .mobileprovision file and send the archive to your..
How do I get my AVPlayer to play while app is in background? http://stackoverflow.com/questions/4771105/how-do-i-get-my-avplayer-to-play-while-app-is-in-background bgTaskId UIBackgroundTaskInvalid UIApplication sharedApplication endBackgroundTask bgTaskId bgTaskId newTaskId Right now I have no idea where I should go to make my AVPlayer let the radio sing while the user does other stuff on the phone...
Is it possible to reverse-engineer my iPhone application? http://stackoverflow.com/questions/5058203/is-it-possible-to-reverse-engineer-my-iphone-application named .app with some special meta data files about the application and the application executables and its resources. Right clicking and picking Show Package Contents will show the entire contents of the Application.app directory. Any file resources..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload self We need to calculate the proper transformation to make the image upright. We do it in 2 steps Rotate if Left Right Down and then flip if Mirrored. CGAffineTransform transform CGAffineTransformIdentity switch self.imageOrientation case.. transform self.size.width 0 transform CGAffineTransformRotate transform M_PI_2 break case UIImageOrientationRight case UIImageOrientationRightMirrored transform CGAffineTransformTranslate transform 0 self.size.height transform CGAffineTransformRotate.. 0 transform CGAffineTransformRotate transform M_PI_2 break case UIImageOrientationRight case UIImageOrientationRightMirrored transform CGAffineTransformTranslate transform 0 self.size.height transform CGAffineTransformRotate transform M_PI_2..
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root all the book keeping when selecting a different account would probably be a pain. How should I implement this the Right Way ^1 The tab bar controller needs to be subclassed so that the tab bar controller's navigation item at that level stays..
Is there a way to pass touches through on the iPhone? http://stackoverflow.com/questions/631427/is-there-a-way-to-pass-touches-through-on-the-iphone should be passed on to the main view when touching the UIButtons but also should send the button press action. Right now I have the touch up inside changing the control. The drag exit calls the touch up inside section to set the control..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample be any need for me save anything into the 'old' sandbox of my app i.e. as it used to be in the old pre iCloud days . Right now my sandbox is totally empty but I don't know if this is correct. Should I keep another copy of text.txt in there This..
http://stackoverflow.com/questions/962827/uiimage-shadow-trouble Shadow Trouble I'm trying to add a small shadow to an image much like the icon shadows in the App Store. Right now I'm using the following code to round the corners of my images. Does anyone know how I can adapt it to add a small shadow..
NSDateFormatter dateFromString and iPhone in 24 Hour Format Confusion http://stackoverflow.com/questions/2173965/nsdateformatter-datefromstring-and-iphone-in-24-hour-format-confusion 1970 01 01 03 19 00 and theString is 3 19 WRONG In 12 hour mode date is 1970 01 01 15 19 00 and theString is 3 19 PM RIGHT So... question 1 why is the device's 24 hour setting overriding my date formatter setting and more importantly question..
Finding the direction of scrolling in a UIScrollView? http://stackoverflow.com/questions/2543670/finding-the-direction-of-scrolling-in-a-uiscrollview touch previousLocationInView self .x NSLog @ f f before now if now before right NO NSLog @ LEFT else right YES NSLog @ RIGHT But this method sometimes doesn't get called at all when I move. What do you think iphone ios cocoa touch uiscrollview..
RESTful frameworks for Android, iOS…? http://stackoverflow.com/questions/4097686/restful-frameworks-for-android-ios frameworks for Android iOS&hellip My company is reworking its API and wants to make everything RIGHT for this time Thats the setup... We are delivering data to clients over the internet. Clients are mobile handsets like iPhone..
Gesture problem: UISwipeGestureRecognizer + UISlider http://stackoverflow.com/questions/4765661/gesture-problem-uiswipegesturerecognizer-uislider Here is the code contained within the view controller void viewDidLoad super viewDidLoad Setup handling of LEFT and RIGHT swipes UISwipeGestureRecognizer recognizer recognizer UISwipeGestureRecognizer alloc initWithTarget self action @selector..
NSString unicode encoding problem http://stackoverflow.com/questions/5447413/nsstring-unicode-encoding-problem help me iphone unicode encoding nsstring share improve this question it is shown as a p That's character U 2019 RIGHT SINGLE QUOTATION MARK. What has happened is you've had the character sequence s submitted to you in the UTF 8 encoding which..
How to recognize swipe in all 4 directions? http://stackoverflow.com/questions/8181774/how-to-recognize-swipe-in-all-4-directions NSLog @ SWIPE LEFT if sender.direction UISwipeGestureRecognizerDirectionRight NSLog @ SWIPE RIGHT if sender.direction UISwipeGestureRecognizerDirectionDown NSLog @ SWIPE DOWN if sender.direction UISwipeGestureRecognizerDirectionUp.. NSLog @ SWIPE LEFT if sender.direction UISwipeGestureRecognizerDirectionRight NSLog @ SWIPE RIGHT if sender.direction UISwipeGestureRecognizerDirectionDown NSLog @ SWIPE DOWN if sender.direction UISwipeGestureRecognizerDirectionUp..
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