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2014/10/15 ¤U¤È 10:07:24
iphone Programming Glossary: doingHow to intercept touches events on a MKMapView or UIWebView objects? http://stackoverflow.com/questions/1049889/how-to-intercept-touches-events-on-a-mkmapview-or-uiwebview-objects to intercept touches events on a MKMapView or UIWebView objects I'm not sure what i'm doing wrong but I try to catch touches on a MKMapView object. I subclassed it by creating the following class.. alloc initWithFrame self.view.frame self.view insertSubview mapView atIndex 0 Any idea what I'm doing wrong iphone objective c iphone sdk 3.0 share improve this question None of the previous solutions..
Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps? http://stackoverflow.com/questions/1108693/is-it-possible-to-register-a-httpdomain-based-url-scheme-for-iphone-apps-like Thanks iphone ios url share improve this question I think the least intrusive way of doing this is as follows Check if the user agent is that of an iPhone iPod Touch Check for an appInstalled..
Symbolicating iPhone App Crash Reports http://stackoverflow.com/questions/1460892/symbolicating-iphone-app-crash-reports and it just outputs the same text that is in the crash report to start with not symbolicated. Am I doing something wrong Any help would be greatly appreciated thanks. iphone crash reports symbolicate share..
http://stackoverflow.com/questions/158914/cropping-a-uiimage but am I instead attempting to draw over other memory that I shouldn't be touching Theory 2 I'm doing all of this in a background thread. I know there are portions of UIKit that are restricted to the main..
Detecting which UIButton was pressed in a UITableView http://stackoverflow.com/questions/1802707/detecting-which-uibutton-was-pressed-in-a-uitableview message processing button press for this row requires an indexPath. What's the standard way of doing this Edit I've kinda solved it by doing the following. I would still like to have an opinion whether.. this row requires an indexPath. What's the standard way of doing this Edit I've kinda solved it by doing the following. I would still like to have an opinion whether this is the standard way of doing it or.. by doing the following. I would still like to have an opinion whether this is the standard way of doing it or is there a better way UITableViewCell tableView UITableView tableView cellForRowAtIndexPath NSIndexPath..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone develop an app for the iPhone and that app would have to access a couple of SOAP services. While doing some basic checking in the iPhone SDK I was not able to find any support for accessing SOAP services..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults to store custom objects in NSUserDefaults Alright so I've been doing some poking around and I realize my problem but I don't know how to fix it. I have made a custom class.. immediatly. I've narrowed it down to the encryption part of the app that's where it crashes so I'm doing something wrong but I'm not sure what. Help would be appreciated again thank you I haven't gotten around..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 and or BUILD_DIR instead of guesstimating them Apple's latest Xcode prevents you from doing what he's done it simply will not work due to the Documented change in how Xcode processes targets Another.. how to use this script with a project embedded in another project although I highly recommend NOT doing that ever Apple has a couple of show stopper bugs in Xcode if you embed projects inside each other from..
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 if they will be using memory beware of leaving contexts open though Recycle page objects by doing pointer swaps or destroy unused views Close any open Contexts as soon as you don't need them on receiving..
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 above starts tacking AM or PM onto the end of the resulting string. See eg NSDateFormatter am I doing something wrong or is this a bug And see https developer.apple.com library ios qa qa1480 _index.html..
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 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 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 pointer... things properly . More It's possible to build up an NSMethodInvocation to handle this as well but doing so requires a lot more typing and is also slower so there's little reason to do it. 1 All Objective..
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 You can fill in the appropriate string format variables. I used HTTP Client to check what I was doing. void sendPayPalRequestPOST perfomingSetMobileCheckout YES recordResults FALSE NSString parameterString..
Is there a barcode recognition framework for iOS? http://stackoverflow.com/questions/838724/is-there-a-barcode-recognition-framework-for-ios there a barcode recognition framework for iOS Is there a framework or other sample code for doing barcode recognition on iPhone iPad iphone ios cocoa touch barcode share improve this question Yes..
How to intercept touches events on a MKMapView or UIWebView objects? http://stackoverflow.com/questions/1049889/how-to-intercept-touches-events-on-a-mkmapview-or-uiwebview-objects to intercept touches events on a MKMapView or UIWebView objects I'm not sure what i'm doing wrong but I try to catch touches on a MKMapView object. I subclassed it by creating the following class #import UIKit UIKit.h #import MapKit MapKit.h @interface.. on the Console MapViewWithTouches mapView MapViewWithTouches alloc initWithFrame self.view.frame self.view insertSubview mapView atIndex 0 Any idea what I'm doing wrong iphone objective c iphone sdk 3.0 share improve this question None of the previous solutions above will work perfectly especially in cases involving..
Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps? http://stackoverflow.com/questions/1108693/is-it-possible-to-register-a-httpdomain-based-url-scheme-for-iphone-apps-like in case the attempt fails Not sure if this will work... suggestions Thanks iphone ios url share improve this question I think the least intrusive way of doing this is as follows Check if the user agent is that of an iPhone iPod Touch Check for an appInstalled cookie If the cookie exists and is set to true set window.location..
Symbolicating iPhone App Crash Reports http://stackoverflow.com/questions/1460892/symbolicating-iphone-app-crash-reports invoking symbolicatecrash crashreport.crash myApp.app.dSYM and it just outputs the same text that is in the crash report to start with not symbolicated. Am I doing something wrong Any help would be greatly appreciated thanks. iphone crash reports symbolicate share improve this question Steps to analyze crash report from..
http://stackoverflow.com/questions/158914/cropping-a-uiimage the bounds of my image context. I was hoping this was Kosher but am I instead attempting to draw over other memory that I shouldn't be touching Theory 2 I'm doing all of this in a background thread. I know there are portions of UIKit that are restricted to the main thread. I was assuming hoping that drawing to an offscreen..
Detecting which UIButton was pressed in a UITableView http://stackoverflow.com/questions/1802707/detecting-which-uibutton-was-pressed-in-a-uitableview button UIButton sender how do I know which button sent this message processing button press for this row requires an indexPath. What's the standard way of doing this Edit I've kinda solved it by doing the following. I would still like to have an opinion whether this is the standard way of doing it or is there a better way.. which button sent this message processing button press for this row requires an indexPath. What's the standard way of doing this Edit I've kinda solved it by doing the following. I would still like to have an opinion whether this is the standard way of doing it or is there a better way UITableViewCell tableView UITableView.. the standard way of doing this Edit I've kinda solved it by doing the following. I would still like to have an opinion whether this is the standard way of doing it or is there a better way UITableViewCell tableView UITableView tableView cellForRowAtIndexPath NSIndexPath indexPath NSString identifier @ identifier UITableViewCell..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone to access SOAP services from iPhone I'm planning to develop an app for the iPhone and that app would have to access a couple of SOAP services. While doing some basic checking in the iPhone SDK I was not able to find any support for accessing SOAP services a bit of Googling lead to the conclusion that there is no support..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults to store custom objects in NSUserDefaults Alright so I've been doing some poking around and I realize my problem but I don't know how to fix it. I have made a custom class to hold some data. I make objects for this class and I need.. to help. Basically the app will launch and then crash immediatly. I've narrowed it down to the encryption part of the app that's where it crashes so I'm doing something wrong but I'm not sure what. Help would be appreciated again thank you I haven't gotten around to decrypting yet as I haven't gotten encrypting working..
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 means it only works on his machine he should be using BUILT_PRODUCTS_DIR and or BUILD_DIR instead of guesstimating them Apple's latest Xcode prevents you from doing what he's done it simply will not work due to the Documented change in how Xcode processes targets Another SO questioner asked how to do it WITHOUT xcode and with.. your library into a Framework . RECENT CHANGES Info on how to use this script with a project embedded in another project although I highly recommend NOT doing that ever Apple has a couple of show stopper bugs in Xcode if you embed projects inside each other from Xcode 3.x through to Xcode 4.6.x Bonus script to let you..
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 a singleton. Cancel needless NSOperations When you can especially if they will be using memory beware of leaving contexts open though Recycle page objects by doing pointer swaps or destroy unused views Close any open Contexts as soon as you don't need them on receiving memory warnings release and reload the DocRef and any..
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 region sets the 12 24 hour switch in settings to 12. Then the above starts tacking AM or PM onto the end of the resulting string. See eg NSDateFormatter am I doing something wrong or is this a bug And see https developer.apple.com library ios qa qa1480 _index.html Apparently Apple has declared this to be BAD Broken As Designed..
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 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 check if the selector exists or not but.. _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 pointer. Complex Example When the selector takes arguments or.. this warning was necessary and the above doesn't handle things properly . More It's possible to build up an NSMethodInvocation to handle this as well but doing so requires a lot more typing and is also slower so there's little reason to do it. 1 All Objective C methods have two hidden arguments self and _cmd that are implicitly..
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 an HTTP POST to send to Paypal and makes an NSURLRequest. You can fill in the appropriate string format variables. I used HTTP Client to check what I was doing. void sendPayPalRequestPOST perfomingSetMobileCheckout YES recordResults FALSE NSString parameterString NSString stringWithFormat @ USER @ PWD @ SIGNATURE @ VERSION..
Is there a barcode recognition framework for iOS? http://stackoverflow.com/questions/838724/is-there-a-barcode-recognition-framework-for-ios there a barcode recognition framework for iOS Is there a framework or other sample code for doing barcode recognition on iPhone iPad iphone ios cocoa touch barcode share improve this question Yes we produced the 'Barcodes' application for the iPhone. It..
How to intercept touches events on a MKMapView or UIWebView objects? http://stackoverflow.com/questions/1049889/how-to-intercept-touches-events-on-a-mkmapview-or-uiwebview-objects to intercept touches events on a MKMapView or UIWebView objects I'm not sure what i'm doing wrong but I try to catch touches on a MKMapView object. I subclassed it by creating the following class #import UIKit UIKit.h.. MapViewWithTouches alloc initWithFrame self.view.frame self.view insertSubview mapView atIndex 0 Any idea what I'm doing wrong iphone objective c iphone sdk 3.0 share improve this question None of the previous solutions above will work..
Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps? http://stackoverflow.com/questions/1108693/is-it-possible-to-register-a-httpdomain-based-url-scheme-for-iphone-apps-like will work... suggestions Thanks iphone ios url share improve this question I think the least intrusive way of doing this is as follows Check if the user agent is that of an iPhone iPod Touch Check for an appInstalled cookie If the cookie..
Symbolicating iPhone App Crash Reports http://stackoverflow.com/questions/1460892/symbolicating-iphone-app-crash-reports myApp.app.dSYM and it just outputs the same text that is in the crash report to start with not symbolicated. Am I doing something wrong Any help would be greatly appreciated thanks. iphone crash reports symbolicate share improve this question..
http://stackoverflow.com/questions/158914/cropping-a-uiimage hoping this was Kosher but am I instead attempting to draw over other memory that I shouldn't be touching Theory 2 I'm doing all of this in a background thread. I know there are portions of UIKit that are restricted to the main thread. I was assuming..
Detecting which UIButton was pressed in a UITableView http://stackoverflow.com/questions/1802707/detecting-which-uibutton-was-pressed-in-a-uitableview which button sent this message processing button press for this row requires an indexPath. What's the standard way of doing this Edit I've kinda solved it by doing the following. I would still like to have an opinion whether this is the standard.. button press for this row requires an indexPath. What's the standard way of doing this Edit I've kinda solved it by doing the following. I would still like to have an opinion whether this is the standard way of doing it or is there a better way.. I've kinda solved it by doing the following. I would still like to have an opinion whether this is the standard way of doing it or is there a better way UITableViewCell tableView UITableView tableView cellForRowAtIndexPath NSIndexPath indexPath..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone I'm planning to develop an app for the iPhone and that app would have to access a couple of SOAP services. While doing some basic checking in the iPhone SDK I was not able to find any support for accessing SOAP services a bit of Googling lead..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults to store custom objects in NSUserDefaults Alright so I've been doing some poking around and I realize my problem but I don't know how to fix it. I have made a custom class to hold some data... and then crash immediatly. I've narrowed it down to the encryption part of the app that's where it crashes so I'm doing something wrong but I'm not sure what. Help would be appreciated again thank you I haven't gotten around to decrypting yet..
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 be using BUILT_PRODUCTS_DIR and or BUILD_DIR instead of guesstimating them Apple's latest Xcode prevents you from doing what he's done it simply will not work due to the Documented change in how Xcode processes targets Another SO questioner.. CHANGES Info on how to use this script with a project embedded in another project although I highly recommend NOT doing that ever Apple has a couple of show stopper bugs in Xcode if you embed projects inside each other from Xcode 3.x through..
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 When you can especially if they will be using memory beware of leaving contexts open though Recycle page objects by doing pointer swaps or destroy unused views Close any open Contexts as soon as you don't need them on receiving memory warnings..
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 to 12. Then the above starts tacking AM or PM onto the end of the resulting string. See eg NSDateFormatter am I doing something wrong or is this a bug And see https developer.apple.com library ios qa qa1480 _index.html Apparently Apple has..
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 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.. 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 pointer. Complex Example.. above doesn't handle things properly . More It's possible to build up an NSMethodInvocation to handle this as well but doing so requires a lot more typing and is also slower so there's little reason to do it. 1 All Objective C methods have two hidden..
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 makes an NSURLRequest. You can fill in the appropriate string format variables. I used HTTP Client to check what I was doing. void sendPayPalRequestPOST perfomingSetMobileCheckout YES recordResults FALSE NSString parameterString NSString stringWithFormat..
Is there a barcode recognition framework for iOS? http://stackoverflow.com/questions/838724/is-there-a-barcode-recognition-framework-for-ios there a barcode recognition framework for iOS Is there a framework or other sample code for doing barcode recognition on iPhone iPad iphone ios cocoa touch barcode share improve this question Yes we produced the 'Barcodes'..
Add Custom Controls to MoviePlayer http://stackoverflow.com/questions/190493/add-custom-controls-to-movieplayer theMovie videoViewController vvController _overlayView addSubview mainView Where 'mainView' is your custom overlay. Doing this makes it so your custom overlay will show and hide with the normal overlays as they are now one in the same Please..
Can iPad/iPhone Touch Points be Wrong Due to Calibration? http://stackoverflow.com/questions/2733868/can-ipad-iphone-touch-points-be-wrong-due-to-calibration I can test this with another device and compare the results. iphone ipad touchscreen share improve this question Doing some quick testing I noticed the same thing. I started a basic view based project with nothing changed but the following..
How to erase part of an image as the user touches it http://stackoverflow.com/questions/2978382/how-to-erase-part-of-an-image-as-the-user-touches-it how to work with OpenCV Open Computer Vision Library and as it was written in C i knew i could ise it on the iPhone. Doing what you want to do with OpenCV is extremely easy. First you need a couple of functions to convert a UIImage to an IplImage..
http://stackoverflow.com/questions/3537795/uimenucontroller-custom-items Do Something item. From my TestViewController.m @implementation TestViewController void doSomething id sender NSLog @ Doing something void viewDidLoad UIMenuController menuController UIMenuController sharedMenuController UIMenuItem item UIMenuItem..
Adding a line break to a UITextView http://stackoverflow.com/questions/3697253/adding-a-line-break-to-a-uitextview in the database to be rendered with breaks within the text. I tried using n to do this but it gets rendered as text. Doing this in my information page of the app as straight text worked but I think the reason its not working when taking it from..
UITableView row animation duration and completion callback http://stackoverflow.com/questions/3832474/uitableview-row-animation-duration-and-completion-callback when the animation completes What I would like to do is flash the scroll indicators after the animation completes. Doing the flash before then doesn't do anything. So far the workaround I have is to delay half a second that seems to be the default..
Pre-buffering for AVQueuePlayer http://stackoverflow.com/questions/4218090/pre-buffering-for-avqueueplayer might be related to buffering. However the AVPlayerItem's loadedTimeRanges property seems more related to buffering. Doing KVO on that array was a bit trickier the array object itself doesn't change only it's items do so I resorted to printing..
libXcodeDebuggerSupport.dylib is missing in iOS 4.2.1 development SDK http://stackoverflow.com/questions/4284277/libxcodedebuggersupport-dylib-is-missing-in-ios-4-2-1-development-sdk Worth mentioning after the upgrade I plugged the iPad in and had to click Use for development in Xcode organizer. Doing so I got a message about symbols missing for that version and Xcode proceeded to generate such then failed. I restored the..
Is there a way to toggle bluetooth and/or wifi on and off programatically in iOS? http://stackoverflow.com/questions/4518406/is-there-a-way-to-toggle-bluetooth-and-or-wifi-on-and-off-programatically-in-ios
setKeepAliveTimeout and BackgroundTasks http://stackoverflow.com/questions/4777499/setkeepalivetimeout-and-backgroundtasks navigation they test it pretty rigorously to ensure that it only does what it's flagged to do while in the background. Doing any kind of HTTP GET request and waiting for some large data update to come back is almost guaranteed to get your app rejected...
Send and receive NSData via GameKit http://stackoverflow.com/questions/4837102/send-and-receive-nsdata-via-gamekit subclass to represent your packet and then adopt NSCoding to serialize it to an NSData in the way that you want. Doing this with a struct isn't buying you anything and makes things even harder. It's also fragile since packing a struct into..
OpenGL-ES 2.0 VS OpenGL-ES 1.1, which is faster? http://stackoverflow.com/questions/5682010/opengl-es-2-0-vs-opengl-es-1-1-which-is-faster for the spheres and cylinders in these structures. These objects look perfectly round and smooth at any magnification. Doing this in OpenGL ES 1.1 with pure geometry would be all but impossible because the number of triangles required would be ridiculous..
Whats a simple way to get a text input popup dialog box on an iPhone http://stackoverflow.com/questions/6319417/whats-a-simple-way-to-get-a-text-input-popup-dialog-box-on-an-iphone edit the textField as desired you can create a reference to the UITextField and edit it as normal programmatically . Doing this I constructed an alertView as you specified in your original question. Better late than never right UIAlertView alert..
What causes “Missed Method” in this code? http://stackoverflow.com/questions/6323244/what-causes-missed-method-in-this-code of callDelegate and then debugging your program instead of simply running it. You can debug by pressing cmd y. Doing like this each time your program enters the callDelegate function it stops and the debugger window pops up. There you will..
http://stackoverflow.com/questions/6962641/get-the-nsstring-height the NSString height I have an NSString and I want to know its height to create an appropriate UILabel. Doing this NSString string @ this is an example CGSize size string sizeWithFont UIFont systemFontOfSize 10.0f forWidth 353.0 lineBreakMode..
Secure contents in document directory http://stackoverflow.com/questions/7471270/secure-contents-in-document-directory to only while the device is unlocked. At all other times attempts to read and write the file result in failure. Note Doing your own encryption raises the problem of key storage and the best answer there is to use the Keychain. Key handling is..
Objective c, Memory management of instance members http://stackoverflow.com/questions/8576593/objective-c-memory-management-of-instance-members your property is set to retain. So when you assign some thing to it it will increase the reatincount. As will alloc . Doing it like this you are leaking self.detailedResultsMapViewController DetailedResultsMapViewController alloc initWithNibName..
Ajax https call in ios using PhoneGap not working? http://stackoverflow.com/questions/9276643/ajax-https-call-in-ios-using-phonegap-not-working not stated the kind of certificate on the server. I suspect that it is self signed. I have also had the same problem. Doing Ajax calls to a server with self signed certificated is NOT possible and this is a SDK limitation. You must write an Objective..
Why does clearing NSUserDefaults cause EXC_CRASH later when creating a UIWebView? http://stackoverflow.com/questions/9679163/why-does-clearing-nsuserdefaults-cause-exc-crash-later-when-creating-a-uiwebview why I can't do that. Is it a bug or am I doing something wrong If you want any more info just let me know Thanks. EDIT Doing NSUserDefaults standardUserDefaults synchronize after deleting all NSUserDefaults does not help. iphone objective c ios..
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