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2014/10/15 ¤U¤È 10:14:39
iphone Programming Glossary: suggestionRetrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage is the y axis inverted Or have I misunderstood premultiplied alpha values Update @Nikolai Ruhe's suggestion was key to this. I did not in fact need to translate between UIKit coordinates and Core Graphics coordinates...
Detect backspace in UITextField http://stackoverflow.com/questions/1977934/detect-backspace-in-uitextfield is empty I want to know when backspace is pressed only if the UITextField is empty. Based on the suggestion from @Alex Reynolds in a comment I've added the following code while creating my text field NSNotificationCenter..
Core Data - Storing Images (iPhone) http://stackoverflow.com/questions/2090028/core-data-storing-images-iphone user and would be looking to transfer the image data to a server. I have come across the design suggestion of creating an Image model object and creating a 1 to 1 relationship with the User model object so that..
Remove HTML Tags from an NSString on the iPhone http://stackoverflow.com/questions/277055/remove-html-tags-from-an-nsstring-on-the-iphone for me to feel comfortable using regex or NSScanner. Does anyone have a solution to this One suggestion has been to simply look for opening and closing tag characters this method won't work except for very..
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 EXECUTABLE_NAME CURRENTCONFIG_SIMULATOR_DIR EXECUTABLE_NAME ######### # # Added StackOverflow suggestion to also copy include files # untested but should work OK # echo Fetching headers from PUBLIC_HEADERS_FOLDER_PATH..
How can I replicate the trashing animation of Mail.app http://stackoverflow.com/questions/428110/how-can-i-replicate-the-trashing-animation-of-mail-app animation but there are some limits for example I cannot animate the bin itself. Do you have any suggestion Code samples Cheers Davide iphone cocoa touch share improve this question Use the suckEffect type..
Inner shadow effect on UIView layer? http://stackoverflow.com/questions/4431292/inner-shadow-effect-on-uiview-layer For anyone else wondering how to draw an inner shadow using Core Graphics as per Costique suggestion then this is how on iOS adjust as needed In your drawRect method... CGRect bounds self bounds CGContextRef..
iPhone smooth sketch drawing algorithm http://stackoverflow.com/questions/5076622/iphone-smooth-sketch-drawing-algorithm sketching app on the iPhone. I got it working but not pretty as seen here And I am looking for any suggestion to smooth the drawing Basically what I did is when user places a finger on the screen I called void..
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 me setLocale en_US_POSIX return me @end Bounty I'll award the bounty to the best legitimate suggestion critique I see by mid day Tuesday. See below deadline extended. Update Re OMZ's proposal here is what..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now particular device. Can anyone suggest any ideas how we might handle this problem going forward The suggestion from the documentation is... Special Considerations Do not use the uniqueIdentifier property. To create..
http://stackoverflow.com/questions/823181/how-to-get-imei-on-iphone NSString identifier myDevice.uniqueIdentifier But this cannot help me to get IMEI. Any suggestion about how to get IMEI on iPhone iphone objective c imei share improve this question I found that..
Retrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage the co ordinates between UIKit and Core Graphics i.e is the y axis inverted Or have I misunderstood premultiplied alpha values Update @Nikolai Ruhe's suggestion was key to this. I did not in fact need to translate between UIKit coordinates and Core Graphics coordinates. However after setting the blend mode my alpha values..
Detect backspace in UITextField http://stackoverflow.com/questions/1977934/detect-backspace-in-uitextfield key is pressed in the iPhone keyboard on a UITextField that is empty I want to know when backspace is pressed only if the UITextField is empty. Based on the suggestion from @Alex Reynolds in a comment I've added the following code while creating my text field NSNotificationCenter defaultCenter addObserver self selector @selector..
Core Data - Storing Images (iPhone) http://stackoverflow.com/questions/2090028/core-data-storing-images-iphone using Core Data as I may offer a backup facility for the user and would be looking to transfer the image data to a server. I have come across the design suggestion of creating an Image model object and creating a 1 to 1 relationship with the User model object so that the associated Image object is not called up unless required..
Remove HTML Tags from an NSString on the iPhone http://stackoverflow.com/questions/277055/remove-html-tags-from-an-nsstring-on-the-iphone There are too many edge cases and malformed HTML documents for me to feel comfortable using regex or NSScanner. Does anyone have a solution to this One suggestion has been to simply look for opening and closing tag characters this method won't work except for very trivial cases. For example these cases from the Perl Cookbook..
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 CREATING_UNIVERSAL_DIR EXECUTABLE_NAME CURRENTCONFIG_DEVICE_DIR EXECUTABLE_NAME CURRENTCONFIG_SIMULATOR_DIR EXECUTABLE_NAME ######### # # Added StackOverflow suggestion to also copy include files # untested but should work OK # echo Fetching headers from PUBLIC_HEADERS_FOLDER_PATH echo if you embed your library project in another..
How can I replicate the trashing animation of Mail.app http://stackoverflow.com/questions/428110/how-can-i-replicate-the-trashing-animation-of-mail-app ithrough the iPhone SDK Presently I am using a custom made animation but there are some limits for example I cannot animate the bin itself. Do you have any suggestion Code samples Cheers Davide iphone cocoa touch share improve this question Use the suckEffect type on an animation. Also spewEffect genieEffect unGenieEffect..
Inner shadow effect on UIView layer? http://stackoverflow.com/questions/4431292/inner-shadow-effect-on-uiview-layer iphone core graphics calayer share improve this question For anyone else wondering how to draw an inner shadow using Core Graphics as per Costique suggestion then this is how on iOS adjust as needed In your drawRect method... CGRect bounds self bounds CGContextRef context UIGraphicsGetCurrentContext CGFloat radius 0.5f..
iPhone smooth sketch drawing algorithm http://stackoverflow.com/questions/5076622/iphone-smooth-sketch-drawing-algorithm smooth sketch drawing algorithm I am working on a sketching app on the iPhone. I got it working but not pretty as seen here And I am looking for any suggestion to smooth the drawing Basically what I did is when user places a finger on the screen I called void touchesBegan NSSet touches withEvent UIEvent event then I collect..
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 en_US_POSIX NSLocale alloc initWithLocaleIdentifier @ en_US_POSIX me setLocale en_US_POSIX return me @end Bounty I'll award the bounty to the best legitimate suggestion critique I see by mid day Tuesday. See below deadline extended. Update Re OMZ's proposal here is what I'm finding Here is the category version h file #import Foundation..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now dependent on this property for uniquely identifying a particular device. Can anyone suggest any ideas how we might handle this problem going forward The suggestion from the documentation is... Special Considerations Do not use the uniqueIdentifier property. To create a unique identifier specific to your app you can call the..
http://stackoverflow.com/questions/823181/how-to-get-imei-on-iphone can get uniqueIdentifier using UIDevice myDevice UIDevice currentDevice NSString identifier myDevice.uniqueIdentifier But this cannot help me to get IMEI. Any suggestion about how to get IMEI on iPhone iphone objective c imei share improve this question I found that erica had posted the header file Message NetworkController.h..
Getting user location every n minutes after app goes to background http://stackoverflow.com/questions/10235203/getting-user-location-every-n-minutes-after-app-goes-to-background user location every n minutes after app goes to background I am trying to implement the suggestions given in this post . Unfortunately the steps are not clear to me. I tried implementing those suggestions but the backgroundTimeRemaining.. implement the suggestions given in this post . Unfortunately the steps are not clear to me. I tried implementing those suggestions but the backgroundTimeRemaining continues to decrease even after I start and stop locationServices. This is how I developed.. startMonitoringSignificantLocationChanges DbgLog @ Reminaing f app.backgroundTimeRemaining Does anyone have a suggestion on what might be wrong in my code Both initTimer and checkUpdates are being called but only during for the background execution..
Retrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage and Core Graphics i.e is the y axis inverted Or have I misunderstood premultiplied alpha values Update @Nikolai Ruhe's suggestion was key to this. I did not in fact need to translate between UIKit coordinates and Core Graphics coordinates. However after..
get NSDate today, yesterday, this Week, last Week, this Month, last Month… variables http://stackoverflow.com/questions/1889164/get-nsdate-today-yesterday-this-week-last-week-this-month-last-month-var nsdate share improve this question Might be a better way to write this but here what i came up on Ben's NSCalendar suggestion and working from there to NSDateComponents NSCalendar cal NSCalendar currentCalendar NSDateComponents components cal components..
Detect backspace in UITextField http://stackoverflow.com/questions/1977934/detect-backspace-in-uitextfield on a UITextField that is empty I want to know when backspace is pressed only if the UITextField is empty. Based on the suggestion from @Alex Reynolds in a comment I've added the following code while creating my text field NSNotificationCenter defaultCenter..
Core Data - Storing Images (iPhone) http://stackoverflow.com/questions/2090028/core-data-storing-images-iphone facility for the user and would be looking to transfer the image data to a server. I have come across the design suggestion of creating an Image model object and creating a 1 to 1 relationship with the User model object so that the associated Image..
Remove HTML Tags from an NSString on the iPhone http://stackoverflow.com/questions/277055/remove-html-tags-from-an-nsstring-on-the-iphone malformed HTML documents for me to feel comfortable using regex or NSScanner. Does anyone have a solution to this One suggestion has been to simply look for opening and closing tag characters this method won't work except for very trivial cases. For..
Problem dealloc'ing memory used by UIImageViews with fairly large image in an UIScrollView http://stackoverflow.com/questions/289360/problem-deallocing-memory-used-by-uiimageviews-with-fairly-large-image-in-an-ui to be released if a user scrolls around enough to make it all visible. The workaround that I've found also Kendall's suggestion is to leave the image name blank in the NIB file. So you lay out your UIImageView elements as normal but don't select an..
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 CURRENTCONFIG_DEVICE_DIR EXECUTABLE_NAME CURRENTCONFIG_SIMULATOR_DIR EXECUTABLE_NAME ######### # # Added StackOverflow suggestion to also copy include files # untested but should work OK # echo Fetching headers from PUBLIC_HEADERS_FOLDER_PATH echo if..
Fixed labels in the selection bar of a UIPickerView http://stackoverflow.com/questions/367471/fixed-labels-in-the-selection-bar-of-a-uipickerview labels in the selection bar of a standard UIPickerView component I did not find any API that would help with that. A suggestion was to add a UILabel as a subview of the picker but that didn't work. Answer I followed Ed Marty's advice answer below and..
How can I replicate the trashing animation of Mail.app http://stackoverflow.com/questions/428110/how-can-i-replicate-the-trashing-animation-of-mail-app using a custom made animation but there are some limits for example I cannot animate the bin itself. Do you have any suggestion Code samples Cheers Davide iphone cocoa touch share improve this question Use the suckEffect type on an animation...
Inner shadow effect on UIView layer? http://stackoverflow.com/questions/4431292/inner-shadow-effect-on-uiview-layer improve this question For anyone else wondering how to draw an inner shadow using Core Graphics as per Costique suggestion then this is how on iOS adjust as needed In your drawRect method... CGRect bounds self bounds CGContextRef context UIGraphicsGetCurrentContext..
iPhone smooth sketch drawing algorithm http://stackoverflow.com/questions/5076622/iphone-smooth-sketch-drawing-algorithm I am working on a sketching app on the iPhone. I got it working but not pretty as seen here And I am looking for any suggestion to smooth the drawing Basically what I did is when user places a finger on the screen I called void touchesBegan NSSet touches..
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 @ en_US_POSIX me setLocale en_US_POSIX return me @end Bounty I'll award the bounty to the best legitimate suggestion critique I see by mid day Tuesday. See below deadline extended. Update Re OMZ's proposal here is what I'm finding Here is..
How to write text on image in objective-c iPhone? http://stackoverflow.com/questions/6992830/how-to-write-text-on-image-in-objective-c-iphone 839 213.html through programming I have the upper image and text with me. Should I write text on image or any other suggestion for it. I want to make it a complete png image image label and set it as the background of the button. Please provide any.. it a complete png image image label and set it as the background of the button. Please provide any sample code or any suggestion for it. iphone uiimageview share improve this question Draw text inside an image and return the resulting image UIImage..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now identifying a particular device. Can anyone suggest any ideas how we might handle this problem going forward The suggestion from the documentation is... Special Considerations Do not use the uniqueIdentifier property. To create a unique identifier..
Last In-First Out Stack with GCD? http://stackoverflow.com/questions/7567827/last-in-first-out-stack-with-gcd reality I just want to solve the issue outlined above and there may be a better way to do it. I am more than open to suggestions like timthetoolman's one that solves the problem outlined in another way if such a suggestion is finally what I use I'll.. I am more than open to suggestions like timthetoolman's one that solves the problem outlined in another way if such a suggestion is finally what I use I'll recognize both the best answer to the original question as well as the best solution I ended..
Scrolling with two fingers with a UIScrollView http://stackoverflow.com/questions/787212/scrolling-with-two-fingers-with-a-uiscrollview view easy and make two finger events scroll the scroll view may be easy may be hard may be impossible . Patrick's suggestion is generally fine let your UIScrollView subclass know about your content view then in touch event handlers check the number..
http://stackoverflow.com/questions/823181/how-to-get-imei-on-iphone myDevice UIDevice currentDevice NSString identifier myDevice.uniqueIdentifier But this cannot help me to get IMEI. Any suggestion about how to get IMEI on iPhone iphone objective c imei share improve this question I found that erica had posted the..
Why is object not dealloc'ed when using ARC + NSZombieEnabled http://stackoverflow.com/questions/8408071/why-is-object-not-dealloced-when-using-arc-nszombieenabled this type of logic to eliminate the issue. I would like to continue using Enable Zombie Objects. EDIT #1 per Kevin's suggestion I've submitted this to Apple and openradar at http openradar.appspot.com 10537635 . EDIT #2 clarification on a good answer..
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