¡@
2014/10/15 ¤U¤È 10:10:41
iphone Programming Glossary: itsHow to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw they are so useful in all my applications . The first should be named objc_exception_throw and its location should be libobjc.A.dylib . The second should be NSException raise and its location should.. and its location should be libobjc.A.dylib . The second should be NSException raise and its location should be CoreFoundation . Now if you start debugging your application with breakpoints enabled..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how docs for UIActionSheet UIActionSheet is not designed to be subclassed nor should you add views to its hierarchy I recommend against trying to customize the contents of an ActionSheet as it can lead to serious.. . Create a UITableViewController in your storyboard embedded in a navigation controller and set its custom class to SimpleTableViewController. Give the navigation controller for SimpleTableViewController..
Programmatically get own phone number in iOS http://stackoverflow.com/questions/193182/programmatically-get-own-phone-number-in-ios Here's the response from Apple For security reasons iPhone OS restricts an application including its preferences and data to a unique location in the file system. This restriction is part of the security..
Prefixing property names with an underscore in Objective C [duplicate] http://stackoverflow.com/questions/3521254/prefixing-property-names-with-an-underscore-in-objective-c 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.. access properties it's hard to confuse when you're accessing a property or when you're accessing its backing ivar directly though using the 2.0 dot access to properties does make it more possible. Using..
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone callbacks it kind of helps. Also when findLargeImage returns the resultblock wont have run yet as its a callback. So largeImage wont be valid yet. largeImage needs to be an instance variable not scoped..
How do I size a UITextView to its content? http://stackoverflow.com/questions/50467/how-do-i-size-a-uitextview-to-its-content do I size a UITextView to its content Is there a good way to adjust the size of a UITextView to conform to its content Say for instance.. a UITextView to its content Is there a good way to adjust the size of a UITextView to conform to its content Say for instance I have a UITextView that contains one line of text Hello world I then add another.. improve this question There is actually a very easy way to do resizing of the UITextView to its correct height of the content. It can be done using the UITextView contentSize . CGRect frame _textView.frame..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c 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.. @selector windowDidMove self delegate windowDidMove notification The delegate property itself is typically declared weak in ARC or assign pre ARC to avoid retain loops since the delegate of an..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c base class implements this . By calling retain on an object you are telling it that you want to up its reference count by one. By calling release you tell the object you are letting go of it and its reference.. up its reference count by one. By calling release you tell the object you are letting go of it and its reference count is decremented. If after calling release the reference count is now zero then that object's.. s NSString alloc initWithString @ Hello World Now what We want to return s but we've upped its reference count. The caller shouldn't be responsible for releasing it since we're the ones that created..
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 may cause a leak because its selector is unknown I'm getting the following warning by the ARC compiler performSelector may cause.. I'm getting the following warning by the ARC compiler performSelector may cause a leak because its selector is unknown . Here's what I'm doing _controller performSelector NSSelectorFromString @ someMethod..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone on the iPhone. Core Plot also encompases many other use cases including desktop systems but its design has included iPhone support from the beginning. It's getting pretty close to useable and is currently..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring device reboot. i don't know why but ifi_opackets and ifi_ipackets are shown just for lo0 i think its main interface . yes. Then device is connected via WiFi and doesn't use internet if_iobytes values still..
How to use NSURLConnection to connect with SSL for an untrusted cert? http://stackoverflow.com/questions/933331/how-to-use-nsurlconnection-to-connect-with-ssl-for-an-untrusted-cert challenge Note that connection didReceiveAuthenticationChallenge can send its message to challenge.sender much later after presenting a dialog box to the user if necessary etc. ..
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw and create two global breakpoints I do them globally because they are so useful in all my applications . The first should be named objc_exception_throw and its location should be libobjc.A.dylib . The second should be NSException raise and its location should be CoreFoundation . Now if you start debugging your application.. all my applications . The first should be named objc_exception_throw and its location should be libobjc.A.dylib . The second should be NSException raise and its location should be CoreFoundation . Now if you start debugging your application with breakpoints enabled it should break on the throw of these exceptions. You should..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how share improve this question Update for iOS 7 Apple docs for UIActionSheet UIActionSheet is not designed to be subclassed nor should you add views to its hierarchy I recommend against trying to customize the contents of an ActionSheet as it can lead to serious invalid context errors in iOS 7. I just spent a few hours.. a new UITableViewController subclass SimpleTableViewController . Create a UITableViewController in your storyboard embedded in a navigation controller and set its custom class to SimpleTableViewController. Give the navigation controller for SimpleTableViewController a Storyboard ID of SimpleTableVC . In SimpleTableViewController.h..
Programmatically get own phone number in iOS http://stackoverflow.com/questions/193182/programmatically-get-own-phone-number-in-ios Nov 5 2009. Our application was just rejected for using it. Here's the response from Apple For security reasons iPhone OS restricts an application including its preferences and data to a unique location in the file system. This restriction is part of the security feature known as the application's sandbox. The sandbox is..
Prefixing property names with an underscore in Objective C [duplicate] http://stackoverflow.com/questions/3521254/prefixing-property-names-with-an-underscore-in-objective-c 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 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.. since objects still have to send messages to themselves to access properties it's hard to confuse when you're accessing a property or when you're accessing its backing ivar directly though using the 2.0 dot access to properties does make it more possible. Using the standard message passing syntax makes intent more explicit..
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone little but if you think of them as notification selectors or callbacks it kind of helps. Also when findLargeImage returns the resultblock wont have run yet as its a callback. So largeImage wont be valid yet. largeImage needs to be an instance variable not scoped to the method. I use this construct to do this when using the..
How do I size a UITextView to its content? http://stackoverflow.com/questions/50467/how-do-i-size-a-uitextview-to-its-content do I size a UITextView to its content Is there a good way to adjust the size of a UITextView to conform to its content Say for instance I have a UITextView that contains one line of text Hello.. do I size a UITextView to its content Is there a good way to adjust the size of a UITextView to conform to its content Say for instance I have a UITextView that contains one line of text Hello world I then add another line of text Goodbye world Is there a good way in Cocoa.. of text in the notes string. iphone cocoa touch uikit share improve this question There is actually a very easy way to do resizing of the UITextView to its correct height of the content. It can be done using the UITextView contentSize . CGRect frame _textView.frame frame.size.height _textView.contentSize.height _textView.frame..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c 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 ... @end Then you could.. and send it if appropriate. if self delegate respondsToSelector @selector windowDidMove self delegate windowDidMove notification The delegate property itself is typically declared weak in ARC or assign pre ARC to avoid retain loops since the delegate of an object often holds a strong reference to that object. For..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c many times it is being referenced specifically the NSObject base class implements this . By calling retain on an object you are telling it that you want to up its reference count by one. By calling release you tell the object you are letting go of it and its reference count is decremented. If after calling release the reference.. retain on an object you are telling it that you want to up its reference count by one. By calling release you tell the object you are letting go of it and its reference count is decremented. If after calling release the reference count is now zero then that object's memory is freed by the system. The basic way this differs.. autorelease is required NSString createHelloWorldString NSString s NSString alloc initWithString @ Hello World Now what We want to return s but we've upped its reference count. The caller shouldn't be responsible for releasing it since we're the ones that created it. If we call release however the reference count will..
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 may cause a leak because its selector is unknown I'm getting the following warning by the ARC compiler performSelector may cause a leak because its selector is unknown . Here's what I'm doing.. may cause a leak because its selector is unknown I'm getting the following warning by the ARC compiler performSelector may cause a leak because its selector is unknown . Here's what I'm doing _controller performSelector NSSelectorFromString @ someMethod Why do I get this warning I understand the compiler can't..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone the Core Plot project was the lack of good plotting frameworks on the iPhone. Core Plot also encompases many other use cases including desktop systems but its design has included iPhone support from the beginning. It's getting pretty close to useable and is currently in use in several shipping iPhone and OS X applications...
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring ifi_obytes and ifa_data ifi_ibytes are stored from previous device reboot. i don't know why but ifi_opackets and ifi_ipackets are shown just for lo0 i think its main interface . yes. Then device is connected via WiFi and doesn't use internet if_iobytes values still come because this method provides network bytes exchanges..
How to use NSURLConnection to connect with SSL for an untrusted cert? http://stackoverflow.com/questions/933331/how-to-use-nsurlconnection-to-connect-with-ssl-for-an-untrusted-cert
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw them globally because they are so useful in all my applications . The first should be named objc_exception_throw and its location should be libobjc.A.dylib . The second should be NSException raise and its location should be CoreFoundation ... be named objc_exception_throw and its location should be libobjc.A.dylib . The second should be NSException raise and its location should be CoreFoundation . Now if you start debugging your application with breakpoints enabled it should break..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how for iOS 7 Apple docs for UIActionSheet UIActionSheet is not designed to be subclassed nor should you add views to its hierarchy I recommend against trying to customize the contents of an ActionSheet as it can lead to serious invalid context.. . Create a UITableViewController in your storyboard embedded in a navigation controller and set its custom class to SimpleTableViewController. Give the navigation controller for SimpleTableViewController a Storyboard ID..
Programmatically get own phone number in iOS http://stackoverflow.com/questions/193182/programmatically-get-own-phone-number-in-ios for using it. Here's the response from Apple For security reasons iPhone OS restricts an application including its preferences and data to a unique location in the file system. This restriction is part of the security feature known as..
Prefixing property names with an underscore in Objective C [duplicate] http://stackoverflow.com/questions/3521254/prefixing-property-names-with-an-underscore-in-objective-c 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.. to themselves to access properties it's hard to confuse when you're accessing a property or when you're accessing its backing ivar directly though using the 2.0 dot access to properties does make it more possible. Using the standard message..
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone selectors or callbacks it kind of helps. Also when findLargeImage returns the resultblock wont have run yet as its a callback. So largeImage wont be valid yet. largeImage needs to be an instance variable not scoped to the method. I use..
How do I size a UITextView to its content? http://stackoverflow.com/questions/50467/how-do-i-size-a-uitextview-to-its-content do I size a UITextView to its content Is there a good way to adjust the size of a UITextView to conform to its content Say for instance I have a UITextView.. do I size a UITextView to its content Is there a good way to adjust the size of a UITextView to conform to its content Say for instance I have a UITextView that contains one line of text Hello world I then add another line of text.. touch uikit share improve this question There is actually a very easy way to do resizing of the UITextView to its correct height of the content. It can be done using the UITextView contentSize . CGRect frame _textView.frame frame.size.height..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c 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.. delegate respondsToSelector @selector windowDidMove self delegate windowDidMove notification The delegate property itself is typically declared weak in ARC or assign pre ARC to avoid retain loops since the delegate of an object often holds..
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 may cause a leak because its selector is unknown I'm getting the following warning by the ARC compiler performSelector may cause a leak because its.. selector is unknown I'm getting the following warning by the ARC compiler performSelector may cause a leak because its selector is unknown . Here's what I'm doing _controller performSelector NSSelectorFromString @ someMethod Why do I get this..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone good plotting frameworks on the iPhone. Core Plot also encompases many other use cases including desktop systems but its design has included iPhone support from the beginning. It's getting pretty close to useable and is currently in use in several..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring stored from previous device reboot. i don't know why but ifi_opackets and ifi_ipackets are shown just for lo0 i think its main interface . yes. Then device is connected via WiFi and doesn't use internet if_iobytes values still come because this..
How to use NSURLConnection to connect with SSL for an untrusted cert? http://stackoverflow.com/questions/933331/how-to-use-nsurlconnection-to-connect-with-ssl-for-an-untrusted-cert challenge Note that connection didReceiveAuthenticationChallenge can send its message to challenge.sender much later after presenting a dialog box to the user if necessary etc. share improve this answer..
How to change language in Facebook login page or dialog? http://stackoverflow.com/questions/10477975/how-to-change-language-in-facebook-login-page-or-dialog is still not in English. somebody help me please thanks iphone facebook localization share improve this question Its a Facebook level issue. check this http developers.facebook.com bugs 407246299295529 browse search_4fa410ea79db26337556383..
http://stackoverflow.com/questions/1065628/uploading-video-with-iphone
How to merge the perspective image(3D Transform)? http://stackoverflow.com/questions/12457047/how-to-merge-the-perspective-image3d-transform merge the perspective image 3D Transform How to merge these two images see attached image .I am using the below code. Its working for ordinary images not for 3D transform images. How to handle this issue. I have searched lot of times still not..
Where's the difference between setObject:forKey: and setValue:forKey: in NSMutableDictionary? http://stackoverflow.com/questions/1249634/wheres-the-difference-between-setobjectforkey-and-setvalueforkey-in-nsmutab forKey is implemented in classes other than NSDictionary . setObject forKey is NSMutableDictionary's reason to exist. Its signature happens to be quite similar to setValue forKey but is more generic e.g. any key type . It's somewhat of a coincidence..
iphone sdk > 3.0 . Video Thumbnail? http://stackoverflow.com/questions/1259316/iphone-sdk-3-0-video-thumbnail as the the movie that is the thumbnail. I have only tested it with video recorded from the phone but it works fine. Its not named the same as the movie so get the directory path the movie is in and iterate for a .jpg and away you go. share..
How to change the device orientation programmatically in iOS 6 http://stackoverflow.com/questions/12650137/how-to-change-the-device-orientation-programmatically-in-ios-6 Not Working The method shouldAutorotateToInterfaceOrientation is NOT supported in iOS 6. Its deprecated. Just in case if you are a newbie who just stared working in cocoa and wondering why is your view controller..
iPhone interaction with ASP.NET WebService http://stackoverflow.com/questions/1290924/iphone-interaction-with-asp-net-webservice
ALAsset Photo Library Image Performance Improvements When Its Loading Slow http://stackoverflow.com/questions/13508535/alasset-photo-library-image-performance-improvements-when-its-loading-slow Photo Library Image Performance Improvements When Its Loading Slow Hi i've got a problem with display an image on my scrollView. At first i create new UIImageView with asset..
Custom Delete button On Editing in UITableView Cell http://stackoverflow.com/questions/1615469/custom-delete-button-on-editing-in-uitableview-cell right if you want that same delete metaphor you want to keep it at the red button that Apple provides. Why change it Its globally recognizable as the standard for delete buttons. Although if you want something like Tweetie where you completely..
Can I trigger a CSS event in mobile safari upon iphone orientation change? http://stackoverflow.com/questions/2313194/can-i-trigger-a-css-event-in-mobile-safari-upon-iphone-orientation-change Thanks iphone iphone web iphone web app share improve this question You can use the window.orientation property. Its value is the degree that the current mode of view is used. Here is a brief example function updateOrientation var orientation..
How do I make UITableViewCell's ImageView a fixed size even when the image is smaller http://stackoverflow.com/questions/2788028/how-do-i-make-uitableviewcells-imageview-a-fixed-size-even-when-the-image-is-sm a few things but none of them work. iphone objective c uitableview uiimageview uikit share improve this question Its not necessary to rewrite everything i recommend doing this instead. Post this inside your .m file of your custom cell. void..
http://stackoverflow.com/questions/3158264/cancel-uilocalnotification localNotif.userInfo infoDict UIApplication sharedApplication scheduleLocalNotification localNotif localNotif release Its work fine and I'm correctly receiving the notification. The problem is when I should cancel the notification. Im using this..
streaming video FROM an iPhone http://stackoverflow.com/questions/3444791/streaming-video-from-an-iphone to package them up with sound for streaming to the server. Sending the files once I have them isn't much of an issue. Its the generation of the files for streaming that I am having problems with. I've been trying to get FFMpeg to work without..
iOS in-app purchase sample code [closed] http://stackoverflow.com/questions/4178214/ios-in-app-purchase-sample-code
Using Phonegap for Native Application development [closed] http://stackoverflow.com/questions/5161004/using-phonegap-for-native-application-development Phonegap for Native Application development closed I recently came across Phonegap . Have anyone of you tried it. Its an incredible tool which claims that developers can use HTML 5 based framework like Sencha touch and Jquery at the same..
Locking the Fields in MFMailComposeViewController http://stackoverflow.com/questions/6284599/locking-the-fields-in-mfmailcomposeviewcontroller and regular. You will have to go into interface builder and create the label though that says sending test drive.. . Its already in the code but I didnt add it from code. So youll have to add it in IB. 1. Make sure to add the framework you downloaded..
How to lose margin/padding in UITextView? http://stackoverflow.com/questions/746670/how-to-lose-margin-padding-in-uitextview UIEdgeInsetsMake 4 8 0 0 where nameField is a UITextView. The font I happened to be using was Helvetica 16 point. Its only a custom solution for the particular field size I was drawing. This makes the left offset flush with the left side..
Weak and strong property setter attributes in Objective-C http://stackoverflow.com/questions/7912555/weak-and-strong-property-setter-attributes-in-objective-c
Most efficient way to draw part of an image in iOS http://stackoverflow.com/questions/8035673/most-efficient-way-to-draw-part-of-an-image-in-ios but I can't remember where. So I'm not sure about this. Anyway I believe CGImage is implemented in CPU because Its API looks like it was designed for CPU such as pixel level access and text drawing. They don't fit a GPU interface very..
Why do I have to call super -dealloc last, and not first? http://stackoverflow.com/questions/909856/why-do-i-have-to-call-super-dealloc-last-and-not-first always calls super dealloc in the end. Why iphone cocoa touch memory management uikit share improve this question Its just a guideline. You can call other instructions after super dealloc . however you can not access variables of the superclass..
|