2014/10/15 下午 10:05:48

iphone Programming Glossary: current

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

Here is some sample code #define kOFFSET_FOR_KEYBOARD 80.0 void keyboardWillShow Animate the current view out of the way if self.view.frame.origin.y 0 self setViewMovedUp YES else if self.view.frame.origin.y..

Add UIPickerView & a Button in Action sheet - How?

http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how

tableview. There are many ways to accomplish this. Here's one way that I just implemented in a current project. It's nice because I can reuse it between 5 or 6 different screens where I all users to select..

How to Rotate a UIImage 90 degrees?

http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees

of code shown below originally intended to resize a UIImage to do this. I set a target size as the current size of the UIImage but I get an error Error CGBitmapContextCreate invalid data bytes row should be.. to just ROTATE my UIImage 90 degrees CCW using just core graphics functions while preserving the current size UIImage reverseImageByScalingToSize CGSize targetSize UIImage anImage UIImage sourceImage anImage..

The simplest way to resize an UIImage?

http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage

scaledToSize CGSize newSize UIGraphicsBeginImageContext newSize In next line pass 0.0 to use the current device's pixel scaling factor and thus account for Retina resolution . Pass 1.0 to force exact pixel..

Check iPhone iOS Version

http://stackoverflow.com/questions/3339722/check-iphone-ios-version

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 .. this iphone version ios share improve this question You can get the OS version using UIDevice currentDevice systemVersion However you should avoid relying on the version string as an indication of device.. or class is available. For example you can check if UIPopoverController is available on the current device using NSClassFromString if NSClassFromString @ UIPopoverController Do something Some classes..

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

should be safe to delete rm rf CREATING_UNIVERSAL_DIR mkdir CREATING_UNIVERSAL_DIR # echo lipo for current configuration CONFIGURATION creating output file CREATING_UNIVERSAL_DIR EXECUTABLE_NAME xcrun sdk iphoneos.. didn't think of that in the main window scroll to bottom. The very last line should read lipo for current configuration Debug creating output file Users blah Library Developer Xcode DerivedData AppName ashwnbutvodmoleijzlncudsekyf..

Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints?

http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints

pretty heavy on memory too. Even monitor the memory usage of apple's zoomable PDF example. In my current project I'm developing a PDF viewer and am rendering a UIImage of a page in a separate thread issues.. The code in void drawLayer CALayer layer inContext CGContextRef context is like CGAffineTransform currentCTM CGContextGetCTM context if currentCTM.a 1.0 baseImage Calculate ideal scale CGFloat scaleForWidth.. inContext CGContextRef context is like CGAffineTransform currentCTM CGContextGetCTM context if currentCTM.a 1.0 baseImage Calculate ideal scale CGFloat scaleForWidth baseImage.size.width self.bounds.size.width..

Getting current device language in iOS?

http://stackoverflow.com/questions/3910244/getting-current-device-language-in-ios

current device language in iOS I'd like to show the current language that the device UI is using. What code.. current device language in iOS I'd like to show the current language that the device UI is using. What code would I use I want this as an NSString in fully spelled.. c ios nslocale share improve this question The solutions provided will actually return the current region of the device not the currently selected language. These are often one and the same. However..

How to determine the content size of a UIWebView?

http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview

to resize my parent views appropriately. The obvious sizeThatFits unfortunately just returns the current frame size of the webView. iphone cocoa touch uiwebview share improve this question It turned out..

Difference between self.ivar and ivar?

http://stackoverflow.com/questions/4142177/difference-between-self-ivar-and-ivar

will call the setName NSString str mutator generated by the compiler which will first release the current string then retains the new string and finally sets name to the retained string. Just calling name foo..

“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

Build generates this warning and error warning iPhone apps should include an armv6 architecture current ARCHS armv7 iPhone iPod Touch application executable is missing a required architecture. At least one.. I thought I had things set correctly Architectures is Standard armv6 armv7 Base SDK Latest iOS currently set to iOS 4.2 Valid Architectures armv6 armv7 I have cleaned all targets. I appreciate any tips...

Set the maximum character length of a UITextField

http://stackoverflow.com/questions/433337/set-the-maximum-character-length-of-a-uitextfield

the specified text should be changed. The text field has not changed at this point so we grab it's current length and the string length we're inserting minus the range length. If this value is too long more.. When typing in a single character at the end of a text field the range.location will be the current field's length and range.length will be 0 because we're not replacing deleting anything. Inserting into..

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

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

can be scheduled every n minutes but it's not possible to execute some code to get the current location without the user having to launch the app via the notification . This approach also doesn't..

Understanding reference counting with Cocoa and Objective-C

http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c

this object up after a little while. From a plumbing perspective when autorelease is called the current thread's NSAutoreleasePool is alerted of the call. The NSAutoreleasePool now knows that once it gets.. is alerted of the call. The NSAutoreleasePool now knows that once it gets an opportunity after the current iteration of the event loop it can call release on the object. From our perspective as programmers it..

Applications are expected to have a root view controller at the end of application launch

http://stackoverflow.com/questions/7520971/applications-are-expected-to-have-a-root-view-controller-at-the-end-of-applicati

sharedApplication setStatusBarStyle UIStatusBarStyleBlackTranslucent Add the tab bar controller's current view as a subview of the window self.window.rootViewController self.tabBarController self.window makeKeyAndVisible..

How to force NSLocalizedString to use a specific language

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

How to use NSXMLParser to parse parent-child elements that have the same name

http://stackoverflow.com/questions/2005448/how-to-use-nsxmlparser-to-parse-parent-child-elements-that-have-the-same-name

currentElement void start @end This is the implementation #import Test.h @interface Test void showCurrentDepth @end @implementation Test void dealloc currentElement release currentName release xmlParser release.. release currentElement elementName copy if currentElement isEqualToString @ Node depth self showCurrentDepth else if currentElement isEqualToString @ name currentName release currentName NSMutableString.. namespaceURI qualifiedName NSString qName if elementName isEqualToString @ Node depth self showCurrentDepth else if elementName isEqualToString @ name if depth 1 NSLog @ Outer name tag @ currentName else..

Implementation of “Automatic Lightweight Migration” for Core Data (iPhone)

http://stackoverflow.com/questions/2310216/implementation-of-automatic-lightweight-migration-for-core-data-iphone

Add Model Version expand your xcdatamodeld item Select the or later file Design Data Model Set Current Version edit this version 3. Specify the momd resource in app delegate. Change your managedObjectModel..

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

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

style being the preferred one iphone objective c coding style share improve this question Current suggested Objective C 2.0 practice is to use the same name for the ivar as the property. You can optionally..

Property vs instance variable in Objective-C [duplicate]

http://stackoverflow.com/questions/6146244/property-vs-instance-variable-in-objective-c

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

down the view having textfields whenever the keyboard is shown. Here is some sample code #define kOFFSET_FOR_KEYBOARD 80.0 void keyboardWillShow Animate the current view out of the way if self.view.frame.origin.y 0 self setViewMovedUp YES else if self.view.frame.origin.y 0 self setViewMovedUp NO void keyboardWillHide if self.view.frame.origin.y..

Add UIPickerView & a Button in Action sheet - How?

http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how

action sheet with a modal view controller containing a simple tableview. There are many ways to accomplish this. Here's one way that I just implemented in a current project. It's nice because I can reuse it between 5 or 6 different screens where I all users to select from a list of options. Create a new UITableViewController..

How to Rotate a UIImage 90 degrees?

http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees

the UIImage to actually shift position. I am using a block of code shown below originally intended to resize a UIImage to do this. I set a target size as the current size of the UIImage but I get an error Error CGBitmapContextCreate invalid data bytes row should be at least 1708 for 8 integer bits component 3 components kCGImageAlphaPremultipliedLast... size as the target size BTW . Can any of you show me how to just ROTATE my UIImage 90 degrees CCW using just core graphics functions while preserving the current size UIImage reverseImageByScalingToSize CGSize targetSize UIImage anImage UIImage sourceImage anImage CGFloat targetWidth targetSize.height CGFloat targetHeight..

The simplest way to resize an UIImage?

http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage

need to resize an image UIImage imageWithImage UIImage image scaledToSize CGSize newSize UIGraphicsBeginImageContext newSize In next line pass 0.0 to use the current device's pixel scaling factor and thus account for Retina resolution . Pass 1.0 to force exact pixel size. UIGraphicsBeginImageContextWithOptions newSize NO 0.0..

Check iPhone iOS Version

http://stackoverflow.com/questions/3339722/check-iphone-ios-version

iPhone iOS 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.. 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 on the version string as an indication of device or OS capabilities. There is usually a more reliable method.. a more reliable method of checking whether a particular feature or class is available. 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..

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

# NB this directory is ONLY created by this script it should be safe to delete rm rf CREATING_UNIVERSAL_DIR mkdir CREATING_UNIVERSAL_DIR # echo lipo for current configuration CONFIGURATION creating output file CREATING_UNIVERSAL_DIR EXECUTABLE_NAME xcrun sdk iphoneos lipo create output CREATING_UNIVERSAL_DIR EXECUTABLE_NAME.. most recent build . Apple should auto select it but they didn't think of that in the main window scroll to bottom. The very last line should read lipo for current configuration Debug creating output file Users blah Library Developer Xcode DerivedData AppName ashwnbutvodmoleijzlncudsekyf Build Products Debug universal libTargetName.a..

Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints?

http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints

ahead of time rendered off screen . Generally PDF viewers are pretty heavy on memory too. Even monitor the memory usage of apple's zoomable PDF example. In my current project I'm developing a PDF viewer and am rendering a UIImage of a page in a separate thread issues here too and presenting it while the scale is x1. CATiledLayer.. the CGPDFPage and render it using the appropriate CTM. The code in void drawLayer CALayer layer inContext CGContextRef context is like CGAffineTransform currentCTM CGContextGetCTM context if currentCTM.a 1.0 baseImage Calculate ideal scale CGFloat scaleForWidth baseImage.size.width self.bounds.size.width CGFloat scaleForHeight.. the appropriate CTM. The code in void drawLayer CALayer layer inContext CGContextRef context is like CGAffineTransform currentCTM CGContextGetCTM context if currentCTM.a 1.0 baseImage Calculate ideal scale CGFloat scaleForWidth baseImage.size.width self.bounds.size.width CGFloat scaleForHeight baseImage.size.height self.bounds.size.height..

Getting current device language in iOS?

http://stackoverflow.com/questions/3910244/getting-current-device-language-in-ios

current device language in iOS I'd like to show the current language that the device UI is using. What code would I use I want this as an NSString in fully spelled out.. current device language in iOS I'd like to show the current language that the device UI is using. What code would I use I want this as an NSString in fully spelled out format. Not @ en_US iphone objective c ios nslocale.. in fully spelled out format. Not @ en_US iphone objective c ios nslocale share improve this question The solutions provided will actually return the current region of the device not the currently selected language. These are often one and the same. However if I am in North America and I set my language to Japanese my..

How to determine the content size of a UIWebView?

http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview

page content. I'd like to find out the CGSize of the content to resize my parent views appropriately. The obvious sizeThatFits unfortunately just returns the current frame size of the webView. iphone cocoa touch uiwebview share improve this question It turned out that my first guess using sizeThatFits was not completely..

Difference between self.ivar and ivar?

http://stackoverflow.com/questions/4142177/difference-between-self-ivar-and-ivar

and retain in your case . So when you call self.name foo it will call the setName NSString str mutator generated by the compiler which will first release the current string then retains the new string and finally sets name to the retained string. Just calling name foo does nothing more than assigning name to foo. This also means..

“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

having trouble building my ad hoc distribution configuration. Build generates this warning and error warning iPhone apps should include an armv6 architecture current ARCHS armv7 iPhone iPod Touch application executable is missing a required architecture. At least one of the following architecture s must be present armv6 19033.. s must be present armv6 19033 However in my project I thought I had things set correctly Architectures is Standard armv6 armv7 Base SDK Latest iOS currently set to iOS 4.2 Valid Architectures armv6 armv7 I have cleaned all targets. I appreciate any tips. iphone ios xcode share improve this question If using Xcode..

Set the maximum character length of a UITextField

http://stackoverflow.com/questions/433337/set-the-maximum-character-length-of-a-uitextfield

the text field changes the UITextField asks the delegate if the specified text should be changed. The text field has not changed at this point so we grab it's current length and the string length we're inserting minus the range length. If this value is too long more than 25 characters in this example return NO to prohibit the.. 25 characters in this example return NO to prohibit the change. When typing in a single character at the end of a text field the range.location will be the current field's length and range.length will be 0 because we're not replacing deleting anything. Inserting into the middle of a text field just means a different range.location..

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

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

designed for background tasks Local notifications Local notifications can be scheduled every n minutes but it's not possible to execute some code to get the current location without the user having to launch the app via the notification . This approach also doesn't seem to be a clean approach as this is not what notifications..

Understanding reference counting with Cocoa and Objective-C

http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c

and sometimes necessary way to tell the system to free this object up after a little while. From a plumbing perspective when autorelease is called the current thread's NSAutoreleasePool is alerted of the call. The NSAutoreleasePool now knows that once it gets an opportunity after the current iteration of the event loop.. is called the current thread's NSAutoreleasePool is alerted of the call. The NSAutoreleasePool now knows that once it gets an opportunity after the current iteration of the event loop it can call release on the object. From our perspective as programmers it takes care of calling release for us so we don't have to and..

Applications are expected to have a root view controller at the end of application launch

http://stackoverflow.com/questions/7520971/applications-are-expected-to-have-a-root-view-controller-at-the-end-of-applicati

imageNamed @ testbg.png Set StatusBar Color UIApplication sharedApplication setStatusBarStyle UIStatusBarStyleBlackTranslucent Add the tab bar controller's current view as a subview of the window self.window.rootViewController self.tabBarController self.window makeKeyAndVisible return YES IN IB the tabBarController's delegate..

How to force NSLocalizedString to use a specific language

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

How to use NSXMLParser to parse parent-child elements that have the same name

http://stackoverflow.com/questions/2005448/how-to-use-nsxmlparser-to-parse-parent-child-elements-that-have-the-same-name

NSInteger depth NSMutableString currentName NSString currentElement void start @end This is the implementation #import Test.h @interface Test void showCurrentDepth @end @implementation Test void dealloc currentElement release currentName release xmlParser release super dealloc void start NSString xml @ xml version 1.0.. qName attributes NSDictionary attributeDict currentElement release currentElement elementName copy if currentElement isEqualToString @ Node depth self showCurrentDepth else if currentElement isEqualToString @ name currentName release currentName NSMutableString alloc init void parser NSXMLParser parser didEndElement NSString.. didEndElement NSString elementName namespaceURI NSString namespaceURI qualifiedName NSString qName if elementName isEqualToString @ Node depth self showCurrentDepth else if elementName isEqualToString @ name if depth 1 NSLog @ Outer name tag @ currentName else NSLog @ Inner name tag @ currentName void parser NSXMLParser..

Implementation of “Automatic Lightweight Migration” for Core Data (iPhone)

http://stackoverflow.com/questions/2310216/implementation-of-automatic-lightweight-migration-for-core-data-iphone

the new file. Select your xcdatamodel file Design Data Model Add Model Version expand your xcdatamodeld item Select the or later file Design Data Model Set Current Version edit this version 3. Specify the momd resource in app delegate. Change your managedObjectModel implementation to this replace YOURDB NSManagedObjectModel..

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

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

the one way it should be done is there a good reason for this style being the preferred one iphone objective c coding style share improve this question Current suggested Objective C 2.0 practice is to use the same name for the ivar as the property. You can optionally assign a different ivar in the @property declaration..

Property vs instance variable in Objective-C [duplicate]

http://stackoverflow.com/questions/6146244/property-vs-instance-variable-in-objective-c

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 keyboard is shown. Here is some sample code #define kOFFSET_FOR_KEYBOARD 80.0 void keyboardWillShow Animate the current view out of the way if self.view.frame.origin.y 0 self setViewMovedUp YES else if self.view.frame.origin.y 0 self setViewMovedUp..

Add UIPickerView & a Button in Action sheet - How?

http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how

containing a simple tableview. There are many ways to accomplish this. Here's one way that I just implemented in a current project. It's nice because I can reuse it between 5 or 6 different screens where I all users to select from a list of options...

How to Rotate a UIImage 90 degrees?

http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees

I am using a block of code shown below originally intended to resize a UIImage to do this. I set a target size as the current size of the UIImage but I get an error Error CGBitmapContextCreate invalid data bytes row should be at least 1708 for 8.. of you show me how to just ROTATE my UIImage 90 degrees CCW using just core graphics functions while preserving the current size UIImage reverseImageByScalingToSize CGSize targetSize UIImage anImage UIImage sourceImage anImage CGFloat targetWidth..

The simplest way to resize an UIImage?

http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage

UIImage image scaledToSize CGSize newSize UIGraphicsBeginImageContext newSize In next line pass 0.0 to use the current device's pixel scaling factor and thus account for Retina resolution . Pass 1.0 to force exact pixel size. UIGraphicsBeginImageContextWithOptions..

Check iPhone iOS Version

http://stackoverflow.com/questions/3339722/check-iphone-ios-version

iOS 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 .. 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 on the version string as an indication of device or OS capabilities... a particular feature or class is available. For example you can check if UIPopoverController is available on the current device using NSClassFromString if NSClassFromString @ UIPopoverController Do something Some classes like CLLocationManager..

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

by this script it should be safe to delete rm rf CREATING_UNIVERSAL_DIR mkdir CREATING_UNIVERSAL_DIR # echo lipo for current configuration CONFIGURATION creating output file CREATING_UNIVERSAL_DIR EXECUTABLE_NAME xcrun sdk iphoneos lipo create output.. select it but they didn't think of that in the main window scroll to bottom. The very last line should read lipo for current configuration Debug creating output file Users blah Library Developer Xcode DerivedData AppName ashwnbutvodmoleijzlncudsekyf..

Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints?

http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints

PDF viewers are pretty heavy on memory too. Even monitor the memory usage of apple's zoomable PDF example. In my current project I'm developing a PDF viewer and am rendering a UIImage of a page in a separate thread issues here too and presenting.. the appropriate CTM. The code in void drawLayer CALayer layer inContext CGContextRef context is like CGAffineTransform currentCTM CGContextGetCTM context if currentCTM.a 1.0 baseImage Calculate ideal scale CGFloat scaleForWidth baseImage.size.width.. drawLayer CALayer layer inContext CGContextRef context is like CGAffineTransform currentCTM CGContextGetCTM context if currentCTM.a 1.0 baseImage Calculate ideal scale CGFloat scaleForWidth baseImage.size.width self.bounds.size.width CGFloat scaleForHeight..

Getting current device language in iOS?

http://stackoverflow.com/questions/3910244/getting-current-device-language-in-ios

current device language in iOS I'd like to show the current language that the device UI is using. What code would I use I want.. current device language in iOS I'd like to show the current language that the device UI is using. What code would I use I want this as an NSString in fully spelled out format. Not.. en_US iphone objective c ios nslocale share improve this question The solutions provided will actually return the current region of the device not the currently selected language. These are often one and the same. However if I am in North America..

How to determine the content size of a UIWebView?

http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview

CGSize of the content to resize my parent views appropriately. The obvious sizeThatFits unfortunately just returns the current frame size of the webView. iphone cocoa touch uiwebview share improve this question It turned out that my first guess..

Difference between self.ivar and ivar?

http://stackoverflow.com/questions/4142177/difference-between-self-ivar-and-ivar

self.name foo it will call the setName NSString str mutator generated by the compiler which will first release the current string then retains the new string and finally sets name to the retained string. Just calling name foo does nothing more..

“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

configuration. Build generates this warning and error warning iPhone apps should include an armv6 architecture current ARCHS armv7 iPhone iPod Touch application executable is missing a required architecture. At least one of the following architecture.. However in my project I thought I had things set correctly Architectures is Standard armv6 armv7 Base SDK Latest iOS currently set to iOS 4.2 Valid Architectures armv6 armv7 I have cleaned all targets. I appreciate any tips. iphone ios xcode ..

Set the maximum character length of a UITextField

http://stackoverflow.com/questions/433337/set-the-maximum-character-length-of-a-uitextfield

the delegate if the specified text should be changed. The text field has not changed at this point so we grab it's current length and the string length we're inserting minus the range length. If this value is too long more than 25 characters in.. NO to prohibit the change. When typing in a single character at the end of a text field the range.location will be the current field's length and range.length will be 0 because we're not replacing deleting anything. Inserting into the middle of a..

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

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

Local notifications can be scheduled every n minutes but it's not possible to execute some code to get the current location without the user having to launch the app via the notification . This approach also doesn't seem to be a clean..

Understanding reference counting with Cocoa and Objective-C

http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c

the system to free this object up after a little while. From a plumbing perspective when autorelease is called the current thread's NSAutoreleasePool is alerted of the call. The NSAutoreleasePool now knows that once it gets an opportunity after.. NSAutoreleasePool is alerted of the call. The NSAutoreleasePool now knows that once it gets an opportunity after the current iteration of the event loop it can call release on the object. From our perspective as programmers it takes care of calling..

Applications are expected to have a root view controller at the end of application launch

http://stackoverflow.com/questions/7520971/applications-are-expected-to-have-a-root-view-controller-at-the-end-of-applicati

Color UIApplication sharedApplication setStatusBarStyle UIStatusBarStyleBlackTranslucent Add the tab bar controller's current view as a subview of the window self.window.rootViewController self.tabBarController self.window makeKeyAndVisible return..

What do I have to do to get Core Data to automatically migrate models?

http://stackoverflow.com/questions/1018155/what-do-i-have-to-do-to-get-core-data-to-automatically-migrate-models

there will be a second file in this directory with a 2 in the name. Select the new file and then Design Data Model Set Current Version in Xcode 4 you do this If you have already made the changes that have caused your project to be incompatible take.. to @ rockstarberlin for pointing out there is updated documentation at apple Xcode 4 Setting a Managed Object Model 䏭 Current Version Update 8 19 2013 better link https developer.apple.com library ios documentation cocoa Conceptual CoreDataVersioning..

Speech Recognition

http://stackoverflow.com/questions/1118400/speech-recognition

package I know of is Sphinx. http cmusphinx.sourceforge.net Otherwise I would suggest looking into Nuance software. Current speech recognition does well with a limited grammar set if you know what they are going to say . Open dictation still doesn't..

Get the password from the webservices url and access through that password

http://stackoverflow.com/questions/15377212/get-the-password-from-the-webservices-url-and-access-through-that-password

set the Encoded value for HTTP header Field. request setValue @ application x www form urlencoded forHTTPHeaderField @ Current Type Set the HTTPBody of the urlrequest with postData. request setHTTPBody postData 4. Now create URLConnection object...

How to force NSLocalizedString to use a specific language

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

How to use NSXMLParser to parse parent-child elements that have the same name

http://stackoverflow.com/questions/2005448/how-to-use-nsxmlparser-to-parse-parent-child-elements-that-have-the-same-name

currentName NSString currentElement void start @end This is the implementation #import Test.h @interface Test void showCurrentDepth @end @implementation Test void dealloc currentElement release currentName release xmlParser release super dealloc void.. currentElement release currentElement elementName copy if currentElement isEqualToString @ Node depth self showCurrentDepth else if currentElement isEqualToString @ name currentName release currentName NSMutableString alloc init void parser.. namespaceURI NSString namespaceURI qualifiedName NSString qName if elementName isEqualToString @ Node depth self showCurrentDepth else if elementName isEqualToString @ name if depth 1 NSLog @ Outer name tag @ currentName else NSLog @ Inner name..

Implementation of “Automatic Lightweight Migration” for Core Data (iPhone)

http://stackoverflow.com/questions/2310216/implementation-of-automatic-lightweight-migration-for-core-data-iphone

file Design Data Model Add Model Version expand your xcdatamodeld item Select the or later file Design Data Model Set Current Version edit this version 3. Specify the momd resource in app delegate. Change your managedObjectModel implementation to..

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

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

a good reason for this style being the preferred one iphone objective c coding style share improve this question Current suggested Objective C 2.0 practice is to use the same name for the ivar as the property. You can optionally assign a different..

How to invoke iPhone Maps for Directions with Current Location as Start Address

http://stackoverflow.com/questions/576768/how-to-invoke-iphone-maps-for-directions-with-current-location-as-start-address

to invoke iPhone Maps for Directions with Current Location as Start Address I know it's possible to start the iPhone maps application by calling openURL on a google maps.. location strings or Lat Long see example below . But I'm wondering if it's possible to make the start address be the Current Location maps bookmark so that I can use the Maps app's location handling code. My Google search has been pretty fruitless... Maps to route you from there to a street address or location. Like so CLLocationCoordinate2D currentLocation self getCurrentLocation this uses an address for the destination. can use lat long too with f f format NSString address @ 123 Main St. New..

Property vs instance variable in Objective-C [duplicate]

http://stackoverflow.com/questions/6146244/property-vs-instance-variable-in-objective-c

Version vs build in XCode 4

http://stackoverflow.com/questions/6851660/version-vs-build-in-xcode-4

then there are a couple things to change first Select the Build Settings tab. Under the Versioning section set the Current Project Version to the initial build number you want to use e.g. 1 . Back on the Build Phases tab drag and drop your Run..

How do I start playing audio when in silent mode & locked in iOS 6?

http://stackoverflow.com/questions/9725192/how-do-i-start-playing-audio-when-in-silent-mode-locked-in-ios-6

or it a notification which cant play sound in silent starting the app back up to play the audio or some other method Current Methods Implemented AVAudioPlayer using AudioSessionInitialize nil nil nil nil AudioSessionSetActive YES UInt32 sessionCategory..