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2014/10/15 ¤U¤È 10:10:14
iphone Programming Glossary: impossibleUIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos file sizes but the original file is a JPEG whilst the returned image is a raw UIImage making it impossible to know the file size of the image that was selected. I'm considering making a table of hashes and matching..
UIScrollView. Any thoughts on implementing “infinite” scroll/zoom? http://stackoverflow.com/questions/1493950/uiscrollview-any-thoughts-on-implementing-infinite-scroll-zoom Cheers Doug iphone cocoa touch uiscrollview share improve this question While it's impossible to have a truly infinite UIScrollView there are some simple tricks you can use to emulate that behavior...
How to use NSXMLParser to parse parent-child elements that have the same name http://stackoverflow.com/questions/2005448/how-to-use-nsxmlparser-to-parse-parent-child-elements-that-have-the-same-name in. The problem as always is that loading the entire tree in a DOM structure in memory can be impossible depending on the size of the data you want to manipulate. The following code shows a class that does..
A html5 web app for mobile safari to upload images from the Photos.app? http://stackoverflow.com/questions/3891831/a-html5-web-app-for-mobile-safari-to-upload-images-from-the-photos-app html5 file upload ios mobile safari share improve this question I hate this word but it's impossible up now . Here is the reasons 1 mobile safari doesn't support upload anything. 2 mobile safari can't..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events much reading of the Background Execution documentation and a few trial apps I'd dismissed this as impossible without abusing the background APIs. Last week I found this application which does exactly that. http..
Return to app behavior after phone call different in native code than UIWebView http://stackoverflow.com/questions/5317783/return-to-app-behavior-after-phone-call-different-in-native-code-than-uiwebview others have said there is no way to change this behavior. Here is my question Is it true that it's impossible to return to an application after making a phone call from a native application URL string Would there..
http://stackoverflow.com/questions/8275578/how-to-get-information-about-free-memory-and-running-processes-in-an-app-store-a any jailbreaking hacking etc. Until recently I was sure that something like this is absolutely impossible on iOS. I've found this code snippet NSArray runningProcesses int mib 4 CTL_KERN KERN_PROC KERN_PROC_ALL..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos the UIImagePickerController to a file on disk. I've explored file sizes but the original file is a JPEG whilst the returned image is a raw UIImage making it impossible to know the file size of the image that was selected. I'm considering making a table of hashes and matching against the first x pixels of each image. This seems..
UIScrollView. Any thoughts on implementing “infinite” scroll/zoom? http://stackoverflow.com/questions/1493950/uiscrollview-any-thoughts-on-implementing-infinite-scroll-zoom re creating Google Maps here. Any insights would be much appreciated. Cheers Doug iphone cocoa touch uiscrollview share improve this question While it's impossible to have a truly infinite UIScrollView there are some simple tricks you can use to emulate that behavior. Handling the fixed contentSize have some fixed size view..
How to use NSXMLParser to parse parent-child elements that have the same name http://stackoverflow.com/questions/2005448/how-to-use-nsxmlparser-to-parse-parent-child-elements-that-have-the-same-name manually keep track of the current depth of the XML tree you're in. The problem as always is that loading the entire tree in a DOM structure in memory can be impossible depending on the size of the data you want to manipulate. The following code shows a class that does this job #import Foundation Foundation.h @interface Test NSObject..
A html5 web app for mobile safari to upload images from the Photos.app? http://stackoverflow.com/questions/3891831/a-html5-web-app-for-mobile-safari-to-upload-images-from-the-photos-app a new photo to your twitter avatar via a web app. iphone html5 file upload ios mobile safari share improve this question I hate this word but it's impossible up now . Here is the reasons 1 mobile safari doesn't support upload anything. 2 mobile safari can't access ios components actually it can but only through phonegap..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events to poll every X minutes to check the data counters. After much reading of the Background Execution documentation and a few trial apps I'd dismissed this as impossible without abusing the background APIs. Last week I found this application which does exactly that. http itunes.apple.com us app dataman real time data usage id393282873..
Return to app behavior after phone call different in native code than UIWebView http://stackoverflow.com/questions/5317783/return-to-app-behavior-after-phone-call-different-in-native-code-than-uiwebview to do so manually. As far as I can tell from reading what others have said there is no way to change this behavior. Here is my question Is it true that it's impossible to return to an application after making a phone call from a native application URL string Would there be any downside to implementing a UIWebView instead of a..
http://stackoverflow.com/questions/8275578/how-to-get-information-about-free-memory-and-running-processes-in-an-app-store-a point. How can this app figure all this stuff out without any jailbreaking hacking etc. Until recently I was sure that something like this is absolutely impossible on iOS. I've found this code snippet NSArray runningProcesses int mib 4 CTL_KERN KERN_PROC KERN_PROC_ALL 0 size_t miblen 4 size_t size int st sysctl mib miblen..
iOS get Configuration Profiles that are installed http://stackoverflow.com/questions/10344814/ios-get-configuration-profiles-that-are-installed app in the iPhone like the bottom left image. The problem is that all over the internet people are saying that this is impossible. HOWEVER Junos Pulse can do this bottom left image . It is only reading the Configuration Profiles which is exactly what..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos on disk. I've explored file sizes but the original file is a JPEG whilst the returned image is a raw UIImage making it impossible to know the file size of the image that was selected. I'm considering making a table of hashes and matching against the..
How to draw a gradient line (fading in/out) with Core Graphics/iPhone? http://stackoverflow.com/questions/1303855/how-to-draw-a-gradient-line-fading-in-out-with-core-graphics-iphone share improve this question After several tries I'm now sure that gradients doesn't affect strokes so I think it's impossible to draw gradient lines with CGContextStrokePath . For horizontal and vertical lines the solution is to use CGContextAddRect..
UIScrollView. Any thoughts on implementing “infinite” scroll/zoom? http://stackoverflow.com/questions/1493950/uiscrollview-any-thoughts-on-implementing-infinite-scroll-zoom would be much appreciated. Cheers Doug iphone cocoa touch uiscrollview share improve this question While it's impossible to have a truly infinite UIScrollView there are some simple tricks you can use to emulate that behavior. Handling the fixed..
Dynamic (Default.png) splashscreen in 3.0 [iPhone SDK] http://stackoverflow.com/questions/1959080/dynamic-default-png-splashscreen-in-3-0-iphone-sdk a symbolic link. But that's not possible in iPhone SDK 3.0 anymore only in 2.0 . How can I make this in 3.0 or is this impossible Tim This worked on iPhone OS 2.0 http collison.ie blog 2008 11 dynamic defaultpng files on the iphone but not on iPhone..
How to use NSXMLParser to parse parent-child elements that have the same name http://stackoverflow.com/questions/2005448/how-to-use-nsxmlparser-to-parse-parent-child-elements-that-have-the-same-name of the XML tree you're in. The problem as always is that loading the entire tree in a DOM structure in memory can be impossible depending on the size of the data you want to manipulate. The following code shows a class that does this job #import Foundation..
How to change an UILabel/UIFont's letter spacing? http://stackoverflow.com/questions/2544905/how-to-change-an-uilabel-uifonts-letter-spacing need to align this to the right. I could do that manually if I knew the width of the drawn text but it's proving near impossible to find that. I've read about ATSU but I couldn't find any examples. This sucks iphone xcode uilabel spacing uifont share..
MKMapView setRegion “snaps” to predefined zoom levels? http://stackoverflow.com/questions/3612007/mkmapview-setregion-snaps-to-predefined-zoom-levels used when the user double taps the map. I'm trying to restore a previously saved region but this behavior makes it impossible if the saved region was set via a pinch zoom and not a double tap zoom. A big clue to me that things are broken on the mapkit..
A html5 web app for mobile safari to upload images from the Photos.app? http://stackoverflow.com/questions/3891831/a-html5-web-app-for-mobile-safari-to-upload-images-from-the-photos-app via a web app. iphone html5 file upload ios mobile safari share improve this question I hate this word but it's impossible up now . Here is the reasons 1 mobile safari doesn't support upload anything. 2 mobile safari can't access ios components..
Bootstrap Server Error in Xcode IPHONE [duplicate] http://stackoverflow.com/questions/3905718/bootstrap-server-error-in-xcode-iphone strange error when testing on simulator 28 answers I get the error below many times and this error makes it impossible to run my application unless I restart the whole Mac. This is not caused due to changes in code. ERROR Couldn't register..
send RSA public key to iphone and use it to encrypt http://stackoverflow.com/questions/4211484/send-rsa-public-key-to-iphone-and-use-it-to-encrypt communicating via non SSL however still is but the data you encrypt with the server's legit public key will be nearly impossible to decrypt . I cobbled this together from Apple's docs this site the Apple developer forums and probably elsewhere. So thanks..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events data counters. After much reading of the Background Execution documentation and a few trial apps I'd dismissed this as impossible without abusing the background APIs. Last week I found this application which does exactly that. http itunes.apple.com us..
Return to app behavior after phone call different in native code than UIWebView http://stackoverflow.com/questions/5317783/return-to-app-behavior-after-phone-call-different-in-native-code-than-uiwebview from reading what others have said there is no way to change this behavior. Here is my question Is it true that it's impossible to return to an application after making a phone call from a native application URL string Would there be any downside to..
How to protect app IPA from hacks if reverse engineering is possible http://stackoverflow.com/questions/6939222/how-to-protect-app-ipa-from-hacks-if-reverse-engineering-is-possible to the system itself which have been exploited you just can't do anything about either possibility. It is impossible to prevent reverse engineering of your app. Even if you had put more effort into obfuscation an attacker with strong motivation..
Scrolling with two fingers with a UIScrollView http://stackoverflow.com/questions/787212/scrolling-with-two-fingers-with-a-uiscrollview to go to your content 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..
http://stackoverflow.com/questions/8275578/how-to-get-information-about-free-memory-and-running-processes-in-an-app-store-a this stuff out without any jailbreaking hacking etc. Until recently I was sure that something like this is absolutely impossible on iOS. I've found this code snippet NSArray runningProcesses int mib 4 CTL_KERN KERN_PROC KERN_PROC_ALL 0 size_t miblen..
How do I install this script into PhoneGap for iOS http://stackoverflow.com/questions/8718411/how-do-i-install-this-script-into-phonegap-for-ios information on the web on how to get rid of this all of the Stackoverflow questions about it said it was practically impossible. But after a while I stumbled upon this tutorial. The bottom paragraph tells you how to do it. And it works I downloaded..
Change iPhone navigation bar's height http://stackoverflow.com/questions/892905/change-iphone-navigation-bars-height see WWDC 2011 Session 114 Customizing the Appearance of UIKit Controls . Original answer from 2009 This is generally impossible. What's more I believe making the navigation bar taller is a violation of Apple Human Interface Guidelines and your application..
Secure https encryption for iPhone app to webpage http://stackoverflow.com/questions/9181186/secure-https-encryption-for-iphone-app-to-webpage one bundled in the application then it will be possible to reverse engineer that credential. Ultimately it is impossible to ensure that a client running on another machine is your client. There have been many discussions of this. It is not hopeless.. a client running on another machine is your client. There have been many discussions of this. It is not hopeless only impossible to solve 100 or even 90 . A simple shared secret over SSL will stop the majority of your attackers without harming your..
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