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2014/10/15 ¤U¤È 10:10:35
iphone Programming Glossary: ios4How To Make iPhone App compatible with multiple SDK (firmware) versions http://stackoverflow.com/questions/3027120/how-to-make-iphone-app-compatible-with-multiple-sdk-firmware-versions and the .xib file based on the user's firmware Cheers. iphone iphone sdk 3.0 compatibility ios4 share improve this question Yes you can build with the latest SDK ie 5.1 and still run on devices..
NSDateFormatter returning nil in OS 4.0 http://stackoverflow.com/questions/3094819/nsdateformatter-returning-nil-in-os-4-0 or implemented differently for iOS4 with these specific methods. What did i leave out iphone ios4 nsdateformatter share improve this question I found out it works if you do it this way see below..
http://stackoverflow.com/questions/3097244/exit-application-in-ios-4-0 user to exit the app like an exit button. is it now OK with apple and how can it be done iphone ios4 share improve this question No still shouldn't do this. You have handlers for the different stages..
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk SDK choices e.g. 3.0 3.1 3.1.3 ... is available where you used to see them. iphone xcode ios4 share improve this question Overview I'm going to explain why this is going on and then how fix..
Turn on torch/flash on iPhone 4 http://stackoverflow.com/questions/3190034/turn-on-torch-flash-on-iphone-4 I don't have an iPhone 4 yet to test on just trying out some of the new API's . Thanks iphone ios4 iphone 4 avcapturedevice avcapturesession share improve this question the lockforConfiguration is..
http://stackoverflow.com/questions/3245733/apple-gyroscope-sample-code event handling guide . Updated Please let me know if any sample available.. iphone cocoa touch ios4 share improve this question To get gyro updates you need to create a motion manager object and optionally..
How do you use NSAttributedString? http://stackoverflow.com/questions/3482346/how-do-you-use-nsattributedstring replaced by other strings at any time. So using hardcoded NSRange values won't work. iphone ipad ios4 nsattributedstring share improve this question When building attributed strings I prefer to use..
http://stackoverflow.com/questions/3504173/detect-retina-display respondsToSelector @selector scale YES UIScreen mainScreen scale 2.00 RETINA DISPLAY iphone ios4 retina display share improve this question In order to detect the Retina display reliably on all..
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 Symbols Developer usr lib libXcodeDebuggerSupport.dylib then we're all set. iphone xcode ios ios4 share improve this question What I just did to solve this problem was cd Developer Platforms iPhoneOS.platform..
Can we retrieve the applications currently running in iPhone and iPad http://stackoverflow.com/questions/4312613/can-we-retrieve-the-applications-currently-running-in-iphone-and-ipad and iPad UPDATE Can we do it in jail broken phones Can we do it for an app for CYDIA Store iphone ios4 share improve this question You can get a list of running processes and from process ids may be..
How to set Local Notification repeat interval to custom time interval? http://stackoverflow.com/questions/4363847/how-to-set-local-notification-repeat-interval-to-custom-time-interval I want the user to be able to set repeatInterval as 4 hours. How do I do that iphone cocoa touch ios4 uilocalnotification localnotification share improve this question Got the answer It is as straight..
Detecting the iPhone's Ring / Silent / Mute switch using AVAudioPlayer not working? http://stackoverflow.com/questions/6901363/detecting-the-iphones-ring-silent-mute-switch-using-avaudioplayer-not-worki answer is the way to go if you want to detect the silent switch. It even works in iOS 7. iphone ios4 iphone sdk 3.0 avaudioplayer avaudiosession share improve this question I went through this VSSilentSwitch..
How can we programmatically detect which iOS version is device running on? [duplicate] http://stackoverflow.com/questions/7848766/how-can-we-programmatically-detect-which-ios-version-is-device-running-on which iOS is running on user's device programmatically Thanks iphone objective c ios cocoa touch ios4 share improve this question Best current version without need to deal with numeric search within..
How To Make iPhone App compatible with multiple SDK (firmware) versions http://stackoverflow.com/questions/3027120/how-to-make-iphone-app-compatible-with-multiple-sdk-firmware-versions To Make iPhone App compatible with multiple SDK firmware versions With iOS4 coming out soon I have already planned to include an iAd in a future update of an app of mine. I assume..
NSDateFormatter returning nil in OS 4.0 http://stackoverflow.com/questions/3094819/nsdateformatter-returning-nil-in-os-4-0 NSLog @ @ dateFormatter stringFromDate theDate but now in the newest xcode 3.2.3 under the iOS4 simulator the varialble theDate is nil. I have looked through the class reference and do not see anything.. through the class reference and do not see anything deprecated or implemented differently for iOS4 with these specific methods. What did i leave out iphone ios4 nsdateformatter share improve this..
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk with Love post on version conditional code entitled Tips Tricks for conditional iOS3 iOS3.2 and iOS4 code . If you are planning on conditionally using 4.0 features this is a strong recommendation to check..
http://stackoverflow.com/questions/3504173/detect-retina-display detect the Retina display reliably on all iOS devices you need to check if the device is running iOS4 and if the UIScreen mainScreen .scale property is equal to 2.0. You CANNOT assume a device is running.. if the UIScreen mainScreen .scale property is equal to 2.0. You CANNOT assume a device is running iOS4 if the scale property exists as the iPad 3.2 also contains this property. On an iPad running iOS3.2.. even though we know that device does not contain a Retina display. Apple changed this behavior in iOS4.2 for the iPad it returns 1.0 in both 1x and 2x modes. You can test this yourself in the simulator...
http://stackoverflow.com/questions/3790957/reachability-guide-for-ios-4 Guide for iOS 4 Has anyone found a halfway decent guide to implementing Reachability on iOS4 I have yet to find one. Thanks in advance iphone reachability share improve this question I have..
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone A couple of things to note are that this uses blocks which were new to me before I started my iOS4 porting but you might like to look at http www.mikeash.com pyblog friday qa 2008 12 26.html and http..
How To Make iPhone App compatible with multiple SDK (firmware) versions http://stackoverflow.com/questions/3027120/how-to-make-iphone-app-compatible-with-multiple-sdk-firmware-versions a firmware lower than 4.0. Is there a way to change that variables and the .xib file based on the user's firmware Cheers. iphone iphone sdk 3.0 compatibility ios4 share improve this question Yes you can build with the latest SDK ie 5.1 and still run on devices with earlier versions of the firmware SDK . Set your Deployment..
NSDateFormatter returning nil in OS 4.0 http://stackoverflow.com/questions/3094819/nsdateformatter-returning-nil-in-os-4-0 through the class reference and do not see anything deprecated or implemented differently for iOS4 with these specific methods. What did i leave out iphone ios4 nsdateformatter share improve this question I found out it works if you do it this way see below . The key is using the method NSDateFormatter getObjectValue..
http://stackoverflow.com/questions/3097244/exit-application-in-ios-4-0 .. and I think there should be a clear way for the user to exit the app like an exit button. is it now OK with apple and how can it be done iphone ios4 share improve this question No still shouldn't do this. You have handlers for the different stages so this is how you should do it. There's no point in exiting..
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk none of the previously available panoply of Device or Simulator SDK choices e.g. 3.0 3.1 3.1.3 ... is available where you used to see them. iphone xcode ios4 share improve this question Overview I'm going to explain why this is going on and then how fix the specific Base SDK Missing problem. You can skip to the bottom..
Turn on torch/flash on iPhone 4 http://stackoverflow.com/questions/3190034/turn-on-torch-flash-on-iphone-4 Does anybody know if this would work or am I missing anything I don't have an iPhone 4 yet to test on just trying out some of the new API's . Thanks iphone ios4 iphone 4 avcapturedevice avcapturesession share improve this question the lockforConfiguration is set in your code where you declare your AVCaptureDevice is..
http://stackoverflow.com/questions/3245733/apple-gyroscope-sample-code google i didn't find anything except core motion guide and event handling guide . Updated Please let me know if any sample available.. iphone cocoa touch ios4 share improve this question To get gyro updates you need to create a motion manager object and optionally but recommended a reference attitude object So in..
How do you use NSAttributedString? http://stackoverflow.com/questions/3482346/how-do-you-use-nsattributedstring you do it Edit Remember @ first @ second and @ third will be replaced by other strings at any time. So using hardcoded NSRange values won't work. iphone ipad ios4 nsattributedstring share improve this question When building attributed strings I prefer to use the mutable subclass just to keep things cleaner. That being..
http://stackoverflow.com/questions/3504173/detect-retina-display The best way I've found to do it now is if UIScreen mainScreen respondsToSelector @selector scale YES UIScreen mainScreen scale 2.00 RETINA DISPLAY iphone ios4 retina display share improve this question In order to detect the Retina display reliably on all iOS devices you need to check if the device is running iOS4..
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 Developer Platforms iPhoneOS.platform DeviceSupport 4.2.1 8C148 Symbols Developer usr lib libXcodeDebuggerSupport.dylib then we're all set. iphone xcode ios ios4 share improve this question What I just did to solve this problem was cd Developer Platforms iPhoneOS.platform DeviceSupport 4.2.1 8C148 Symbols and created..
Can we retrieve the applications currently running in iPhone and iPad http://stackoverflow.com/questions/4312613/can-we-retrieve-the-applications-currently-running-in-iphone-and-ipad we retrieve the applications currently running in iPhone and iPad UPDATE Can we do it in jail broken phones Can we do it for an app for CYDIA Store iphone ios4 share improve this question You can get a list of running processes and from process ids may be you can figure out which ones are system processes and which..
How to set Local Notification repeat interval to custom time interval? http://stackoverflow.com/questions/4363847/how-to-set-local-notification-repeat-interval-to-custom-time-interval I dont want the user to set seperate notifications for each. I want the user to be able to set repeatInterval as 4 hours. How do I do that iphone cocoa touch ios4 uilocalnotification localnotification share improve this question Got the answer It is as straight as it gets. You cannot create custom repeat intervals. You..
Detecting the iPhone's Ring / Silent / Mute switch using AVAudioPlayer not working? http://stackoverflow.com/questions/6901363/detecting-the-iphones-ring-silent-mute-switch-using-avaudioplayer-not-worki 5S but the SoundSwitch library linked in the new accepted answer is the way to go if you want to detect the silent switch. It even works in iOS 7. iphone ios4 iphone sdk 3.0 avaudioplayer avaudiosession share improve this question I went through this VSSilentSwitch library. Didn't work for me doesn't work when you..
How can we programmatically detect which iOS version is device running on? [duplicate] http://stackoverflow.com/questions/7848766/how-can-we-programmatically-detect-which-ios-version-is-device-running-on than 5.0 and display a label in the app. How do I detect which iOS is running on user's device programmatically Thanks iphone objective c ios cocoa touch ios4 share improve this question Best current version without need to deal with numeric search within NSString is to define macros See original answer Check iPhone..
How To Make iPhone App compatible with multiple SDK (firmware) versions http://stackoverflow.com/questions/3027120/how-to-make-iphone-app-compatible-with-multiple-sdk-firmware-versions To Make iPhone App compatible with multiple SDK firmware versions With iOS4 coming out soon I have already planned to include an iAd in a future update of an app of mine. I assume that this will make my app unusable for anyone on a firmware..
NSDateFormatter returning nil in OS 4.0 http://stackoverflow.com/questions/3094819/nsdateformatter-returning-nil-in-os-4-0 mm ssZ NSDate theDate dateFormatter dateFromString stringDate NSLog @ @ dateFormatter stringFromDate theDate but now in the newest xcode 3.2.3 under the iOS4 simulator the varialble theDate is nil. I have looked through the class reference and do not see anything deprecated or implemented differently for iOS4 with these.. the iOS4 simulator the varialble theDate is nil. I have looked through the class reference and do not see anything deprecated or implemented differently for iOS4 with these specific methods. What did i leave out iphone ios4 nsdateformatter share improve this question I found out it works if you do it this way see below..
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk What condition my condition is in Matt Gallagher has a Cocoa with Love post on version conditional code entitled Tips Tricks for conditional iOS3 iOS3.2 and iOS4 code . If you are planning on conditionally using 4.0 features this is a strong recommendation to check it out. Fixing Base SDK Missing Load your project From the..
http://stackoverflow.com/questions/3504173/detect-retina-display retina display share improve this question In order to detect the Retina display reliably on all iOS devices you need to check if the device is running iOS4 and if the UIScreen mainScreen .scale property is equal to 2.0. You CANNOT assume a device is running iOS4 if the scale property exists as the iPad 3.2 also contains.. devices you need to check if the device is running iOS4 and if the UIScreen mainScreen .scale property is equal to 2.0. You CANNOT assume a device is running iOS4 if the scale property exists as the iPad 3.2 also contains this property. On an iPad running iOS3.2 scale will return 1.0 in 1x mode and 2.0 in 2x mode even though.. iOS3.2 scale will return 1.0 in 1x mode and 2.0 in 2x mode even though we know that device does not contain a Retina display. Apple changed this behavior in iOS4.2 for the iPad it returns 1.0 in both 1x and 2x modes. You can test this yourself in the simulator. I test for the displayLinkWithTarget selector method on the..
http://stackoverflow.com/questions/3790957/reachability-guide-for-ios-4 Guide for iOS 4 Has anyone found a halfway decent guide to implementing Reachability on iOS4 I have yet to find one. Thanks in advance iphone reachability share improve this question I have implemented Reachability like this. Download https developer.apple.com..
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone asseturl resultBlock resultblock failureBlock failureblock A couple of things to note are that this uses blocks which were new to me before I started my iOS4 porting but you might like to look at http www.mikeash.com pyblog friday qa 2008 12 26.html and http developer.apple.com library ios #documentation Cocoa Conceptual..
How To Make iPhone App compatible with multiple SDK (firmware) versions http://stackoverflow.com/questions/3027120/how-to-make-iphone-app-compatible-with-multiple-sdk-firmware-versions to change that variables and the .xib file based on the user's firmware Cheers. iphone iphone sdk 3.0 compatibility ios4 share improve this question Yes you can build with the latest SDK ie 5.1 and still run on devices with earlier versions..
NSDateFormatter returning nil in OS 4.0 http://stackoverflow.com/questions/3094819/nsdateformatter-returning-nil-in-os-4-0 see anything deprecated or implemented differently for iOS4 with these specific methods. What did i leave out iphone ios4 nsdateformatter share improve this question I found out it works if you do it this way see below . The key is using..
http://stackoverflow.com/questions/3097244/exit-application-in-ios-4-0 a clear way for the user to exit the app like an exit button. is it now OK with apple and how can it be done iphone ios4 share improve this question No still shouldn't do this. You have handlers for the different stages so this is how you..
What are block-based animation methods in iPhone OS 4.0? http://stackoverflow.com/questions/3126833/what-are-block-based-animation-methods-in-iphone-os-4-0 though that the beginAnimations context and commitAnimations functions were used to create animation blocks.. iphone ios4 uiview core animation share improve this question If you follow that link and scroll up a bit you will see animate methods.. share improve this question If you follow that link and scroll up a bit you will see animate methods new to ios4. animateWithDuration animations animateWithDuration animations completion animateWithDuration delay options animations completion..
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk of Device or Simulator SDK choices e.g. 3.0 3.1 3.1.3 ... is available where you used to see them. iphone xcode ios4 share improve this question Overview I'm going to explain why this is going on and then how fix the specific Base SDK..
Entering background on iOS4 to play audio http://stackoverflow.com/questions/3161635/entering-background-on-ios4-to-play-audio other than audio which they say is supposed to be handled automagically. iphone cocoa touch background avaudioplayer ios4 share improve this question The one part missing from the documentation is you need to set your audio session. AVAudioSession..
Turn on torch/flash on iPhone 4 http://stackoverflow.com/questions/3190034/turn-on-torch-flash-on-iphone-4 am I missing anything I don't have an iPhone 4 yet to test on just trying out some of the new API's . Thanks iphone ios4 iphone 4 avcapturedevice avcapturesession share improve this question the lockforConfiguration is set in your code where..
http://stackoverflow.com/questions/3245733/apple-gyroscope-sample-code core motion guide and event handling guide . Updated Please let me know if any sample available.. iphone cocoa touch ios4 share improve this question To get gyro updates you need to create a motion manager object and optionally but recommended..
iOS 4 app crashes at startup on iOS 3.1.3: Symbol not found: __NSConcreteStackBlock http://stackoverflow.com/questions/3313786/ios-4-app-crashes-at-startup-on-ios-3-1-3-symbol-not-found-nsconcretestackbl libSystem.B.dylib armv6 0373fd64e915a17160732b29d343f95f usr lib libSystem.B.dylib Thanks for any advice iphone ios ios4 share improve this question Ben Gottlieb pointed out yesterday that if you use blocks anywhere in your application you'll..
How do you use NSAttributedString? http://stackoverflow.com/questions/3482346/how-do-you-use-nsattributedstring and @ third will be replaced by other strings at any time. So using hardcoded NSRange values won't work. iphone ipad ios4 nsattributedstring share improve this question When building attributed strings I prefer to use the mutable subclass..
http://stackoverflow.com/questions/3504173/detect-retina-display if UIScreen mainScreen respondsToSelector @selector scale YES UIScreen mainScreen scale 2.00 RETINA DISPLAY iphone ios4 retina display share improve this question In order to detect the Retina display reliably on all iOS devices you need..
http://stackoverflow.com/questions/4260291/issue-with-iphone-sdk-4-2-1 a setting somewhere in Xcode. I dont have these warnings on the simulator. thanks in advance Christian iphone xcode ios4 share improve this question I had this issue with 4.2.1 8C148a which I believe is caused by differing DeviceSupport..
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 4.2.1 8C148 Symbols Developer usr lib libXcodeDebuggerSupport.dylib then we're all set. iphone xcode ios ios4 share improve this question What I just did to solve this problem was cd Developer Platforms iPhoneOS.platform DeviceSupport..
Can we retrieve the applications currently running in iPhone and iPad http://stackoverflow.com/questions/4312613/can-we-retrieve-the-applications-currently-running-in-iphone-and-ipad running in iPhone and iPad UPDATE Can we do it in jail broken phones Can we do it for an app for CYDIA Store iphone ios4 share improve this question You can get a list of running processes and from process ids may be you can figure out which..
How to set Local Notification repeat interval to custom time interval? http://stackoverflow.com/questions/4363847/how-to-set-local-notification-repeat-interval-to-custom-time-interval for each. I want the user to be able to set repeatInterval as 4 hours. How do I do that iphone cocoa touch ios4 uilocalnotification localnotification share improve this question Got the answer It is as straight as it gets. You cannot..
How to include and use new fonts in iPhone SDK? http://stackoverflow.com/questions/4969329/how-to-include-and-use-new-fonts-in-iphone-sdk in Property inspector. How do I include that font so that I can use it iphone objective c cocoa touch iphone sdk 3.0 ios4 share improve this question Add the font files to your resource files Edit your Info.plist Add a new entry with the..
pdf file text reading and searching http://stackoverflow.com/questions/5103281/pdf-file-text-reading-and-searching CH220 CJBDCGCB Reading PDF files as string through iPhone application Thanks shyam parmar iphone xcode ipad pdf ios4 share improve this question Look at PDFKitten it's a good start it does all the glyph width analysis for you but it's..
Detecting the iPhone's Ring / Silent / Mute switch using AVAudioPlayer not working? http://stackoverflow.com/questions/6901363/detecting-the-iphones-ring-silent-mute-switch-using-avaudioplayer-not-worki in the new accepted answer is the way to go if you want to detect the silent switch. It even works in iOS 7. iphone ios4 iphone sdk 3.0 avaudioplayer avaudiosession share improve this question I went through this VSSilentSwitch library...
How can we programmatically detect which iOS version is device running on? [duplicate] http://stackoverflow.com/questions/7848766/how-can-we-programmatically-detect-which-ios-version-is-device-running-on app. How do I detect which iOS is running on user's device programmatically Thanks iphone objective c ios cocoa touch ios4 share improve this question Best current version without need to deal with numeric search within NSString is to define..
iPhone - How do you color an image? http://stackoverflow.com/questions/1223340/iphone-how-do-you-color-an-image CGFloat imageScale 1.0f if self respondsToSelector @selector scale The scale property is new with iOS4. imageScale self.scale UIGraphicsBeginImageContextWithOptions self.size NO imageScale else UIGraphicsBeginImageContext self.size..
Why is NSUserDefaults not saving my values? http://stackoverflow.com/questions/2622754/why-is-nsuserdefaults-not-saving-my-values they'll be gone. You can force the save by calling NSUserDefaults standardUserDefaults synchronize Addendum In iOS4 this answer was originally written when iOS3 was the public release your User Defaults may not get saved when pressing the..
How to accommodate for the iPhone 4 screen resolution? http://stackoverflow.com/questions/2992360/how-to-accommodate-for-the-iphone-4-screen-resolution
How To Make iPhone App compatible with multiple SDK (firmware) versions http://stackoverflow.com/questions/3027120/how-to-make-iphone-app-compatible-with-multiple-sdk-firmware-versions To Make iPhone App compatible with multiple SDK firmware versions With iOS4 coming out soon I have already planned to include an iAd in a future update of an app of mine. I assume that this will make..
NSDateFormatter returning nil in OS 4.0 http://stackoverflow.com/questions/3094819/nsdateformatter-returning-nil-in-os-4-0 dateFromString stringDate NSLog @ @ dateFormatter stringFromDate theDate but now in the newest xcode 3.2.3 under the iOS4 simulator the varialble theDate is nil. I have looked through the class reference and do not see anything deprecated or.. is nil. I have looked through the class reference and do not see anything deprecated or implemented differently for iOS4 with these specific methods. What did i leave out iphone ios4 nsdateformatter share improve this question I found out..
What are block-based animation methods in iPhone OS 4.0? http://stackoverflow.com/questions/3126833/what-are-block-based-animation-methods-in-iphone-os-4-0 are block based animation methods in iPhone OS 4.0 I am trying to implement a game using the iPhone OS 4.0 iOS4 SDK. In the previous versions of the SDK I've been using the UIView beginAnimations context and UIView commitAnimations..
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk Gallagher has a Cocoa with Love post on version conditional code entitled Tips Tricks for conditional iOS3 iOS3.2 and iOS4 code . If you are planning on conditionally using 4.0 features this is a strong recommendation to check it out. Fixing Base..
Entering background on iOS4 to play audio http://stackoverflow.com/questions/3161635/entering-background-on-ios4-to-play-audio background on iOS4 to play audio The documentation is rather poorly written when talking about playing audio in the background. It gives the..
http://stackoverflow.com/questions/3319805/detecting-call-state-in-ios4 call state in iOS4 I would like to know if there is a possibility to detect if the user is in call from an application that is currently in..
http://stackoverflow.com/questions/3504173/detect-retina-display In order to detect the Retina display reliably on all iOS devices you need to check if the device is running iOS4 and if the UIScreen mainScreen .scale property is equal to 2.0. You CANNOT assume a device is running iOS4 if the scale.. is running iOS4 and if the UIScreen mainScreen .scale property is equal to 2.0. You CANNOT assume a device is running iOS4 if the scale property exists as the iPad 3.2 also contains this property. On an iPad running iOS3.2 scale will return 1.0.. and 2.0 in 2x mode even though we know that device does not contain a Retina display. Apple changed this behavior in iOS4.2 for the iPad it returns 1.0 in both 1x and 2x modes. You can test this yourself in the simulator. I test for the displayLinkWithTarget..
http://stackoverflow.com/questions/3558252/ios-keychain-security the second level. This is the easier level to get around since the encryption key is stored on the device. So on iOS4 their method only works with keychain entries which do NOT use kSecAttrAccessibleWhenUnlocked or kSecAttrAccessibleWhenUnlockedThisDeviceOnly..
http://stackoverflow.com/questions/3790957/reachability-guide-for-ios-4 Guide for iOS 4 Has anyone found a halfway decent guide to implementing Reachability on iOS4 I have yet to find one. Thanks in advance iphone reachability share improve this question I have implemented Reachability..
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone failureblock A couple of things to note are that this uses blocks which were new to me before I started my iOS4 porting but you might like to look at http www.mikeash.com pyblog friday qa 2008 12 26.html and http developer.apple.com..
How to subclass UINavigationBar for a UINavigationController programatically? http://stackoverflow.com/questions/6672229/how-to-subclass-uinavigationbar-for-a-uinavigationcontroller-programatically programatically I'm using a custom drawRect function to draw on UINavigationBar across my application in iOS4 it doesn't use images only CoreGraphics. Since you can't implement drawRect in UINavigationBar category in iOS5 Apple is.. is it possible to replace the UINavigationBar with my subclass in UINavigationController so it'll be compatible with iOS4 and iOS5 when the navigationBar property is read only @property nonatomic readonly UINavigationBar navigationBar I'm not..
UINavigationBar's drawRect is not called in iOS 5.0 http://stackoverflow.com/questions/7657465/uinavigationbars-drawrect-is-not-called-in-ios-5-0 ios5 compatibility share improve this question Setting custom background for UINavigationBar to support iOS5 and iOS4 too http www.mladjanantic.com setting custom background for uinavigationbar what will work on ios5 and ios4 too http rogchap.com..
Custom UITabBar background image not working in iOS 5 and later http://stackoverflow.com/questions/7800474/custom-uitabbar-background-image-not-working-in-ios-5-and-later it doesn't change in the future . You can set it for just that instance or globally for all tab bars not supported on iOS4 UITabBar tabBar tabController tabBar if tabBar respondsToSelector @selector setBackgroundImage set it just for this instance..
Is background GPS\location logging possible on iPhone 4 or 3GS running on iOS4 http://stackoverflow.com/questions/3160431/is-background-gps-location-logging-possible-on-iphone-4-or-3gs-running-on-ios4 to transmit the GPS trial in the background with a web call etc. iphone gps share improve this question Yes IOS4 allows your app to log GPS trails in the background. See the Apple docs for more info http developer.apple.com iphone library..
IOS3 Compatible App in IOS4 Mutlitasking http://stackoverflow.com/questions/3654900/ios3-compatible-app-in-ios4-mutlitasking Compatible App in IOS4 Mutlitasking This is a follow on from http stackoverflow.com questions 3648530 iphone app submission issues If I have a.. stackoverflow.com questions 3648530 iphone app submission issues If I have a IOS3 compatible app how does it handle in IOS4 in regards to Multitasking i.e. When the IOS3 app is closed on an IOS4 phone and than they reopen it will it restart or.. a IOS3 compatible app how does it handle in IOS4 in regards to Multitasking i.e. When the IOS3 app is closed on an IOS4 phone and than they reopen it will it restart or is it backgrounded multitasked and when reloaded taken to where the user..
http://stackoverflow.com/questions/4174784/nsoperationqueue-lag-on-ios4 lag on IOS4 I wrote some sample code in a separate application that basically queues up items in an NSMutableArray. I then have a method..
Rating and reviews from within an IOS app [duplicate] http://stackoverflow.com/questions/4784248/rating-and-reviews-from-within-an-ios-app me that when an app was erased it was possible to ask the user to ask rate the app but that feature was removed in IOS4. It's this true the SDK provides me any support to do this kind of stuff thanks iphone ipad ios ios4 rating system share..
HTML <label> command doesn't work in Iphone browser http://stackoverflow.com/questions/5421659/html-label-command-doesnt-work-in-iphone-browser html css share improve this question Adding an empty onclick to the label makes the element clickable again on IOS4. It seems that by default the action is blocked or overtaken by the press and hold copy and paste text mechanics. label..
iPhone app uses 150 MB memory and still no low memory warning! http://stackoverflow.com/questions/6787528/iphone-app-uses-150-mb-memory-and-still-no-low-memory-warning from a nib. there is no leakage and in instruments live bytes seems around 2 3 MB. I tested in real device jailbroken IOS4 iPhone when I go through deep in the navigation around 200 page pushes I can see that memory usage goes upto 150 MB when..
iCloud: can I ignore those who disable iCloud? http://stackoverflow.com/questions/7798555/icloud-can-i-ignore-those-who-disable-icloud wrapper class you could have instance variables for a UIDocument structure as well as for fields you would need in IOS4 such as the path to the file . When you instantiate your class test whether iCloud is enabled and if UIDocument is available..
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