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2014/10/15 ¤U¤È 10:08:59
iphone Programming Glossary: figuredOptimizing CLLocationManager/CoreLocation to retrieve data points faster on the iPhone http://stackoverflow.com/questions/1081219/optimizing-cllocationmanager-corelocation-to-retrieve-data-points-faster-on-the lots of issues with CLLocationManager on the iPhone also. From different Apps and trial and error this is what I've figured out 1 Use a singleton class for the locationManager ONLY ONE Instance follow the examples in Apple's LocateMe example Tweetero..
Resize for in-call status bar? http://stackoverflow.com/questions/1114557/resize-for-in-call-status-bar for in call status bar How can I make my view resize in response to the in call status bar from my nib I figured it would just be setting the resize properties but they're not enabled for the root UIView. I think my main problem here..
Remove all but numbers from NSString http://stackoverflow.com/questions/1129521/remove-all-but-numbers-from-nsstring @ @ strippedString 123123123 EDIT I've updated the code because the original was written off the top of my head and I figured it would be enough to point the people in the right direction. It seems that people are after code they can just copy paste..
How do I wrap text in a UITableViewCell without a custom cell http://stackoverflow.com/questions/129502/how-do-i-wrap-text-in-a-uitableviewcell-without-a-custom-cell custom cell but that's not what I'm trying to achieve I want to understand why my current approach doesn't work. I've figured out that the label is created on demand since the cell supports text and image access so it doesn't create the data view..
Re-Apply currency formatting to a UITextField on a change event http://stackoverflow.com/questions/2388448/re-apply-currency-formatting-to-a-uitextfield-on-a-change-event uitextfield currency nsnumberformatter share improve this question I've been working on this issue and I think I figured out a nice clean solution. I'll show you how to appropriately update the textfield on user input but you'll have to figure..
Max size iPad / iPhone Offline Application Cache http://stackoverflow.com/questions/2772908/max-size-ipad-iphone-offline-application-cache iphone caching ipad offline share improve this question I have the same problem on iPhone. On iPad though I figured a turn around. If your manifest contains files less than 5MB the first time and you update the cache by window.applicationCache.update..
Weak linking on iPhone refuses to work http://stackoverflow.com/questions/3002833/weak-linking-on-iphone-refuses-to-work to set Or am I going about this the wrong way iphone objective c weak linking share improve this question Aaand I figured it out. For symbols that are not functions extern const int foobar for instance you have to compare against the address..
http://stackoverflow.com/questions/3558252/ios-keychain-security the encryption key. The second level uses a key generated by and stored on the device. Fraunhofer's researchers have figured out how to get around the second level. This is the easier level to get around since the encryption key is stored on the..
How many times do I release an allocated or retained object? http://stackoverflow.com/questions/3730804/how-many-times-do-i-release-an-allocated-or-retained-object such objects but then I realized that sometimes I end up releasing objects when they have not been allocated yet. So I figured I need to check if its retainCount is greater than zero or not before I release it. My question is Do I just check if the..
How do I open the Settings application from my application? http://stackoverflow.com/questions/377102/how-do-i-open-the-settings-application-from-my-application not possible opening settings is better than nothing. I vaguely remember that the iPhone jailbreaking people had figured out a way to launch settings or other apps via a funny URL or phone number in the Addressbook but I'm not finding any info..
Loading a Reusable UITableViewCell from a Nib http://stackoverflow.com/questions/413993/loading-a-reusable-uitableviewcell-from-a-nib cell with a reuseIdentifier which means you have to create whole new instances of each cell at every call. Has anyone figured out a good way to still cache particular cell types for reuses but still be able to design them in Interface Builder iphone..
Aligning text and image on UIButton with imageEdgeInsets and titleEdgeInsets http://stackoverflow.com/questions/4564621/aligning-text-and-image-on-uibutton-with-imageedgeinsets-and-titleedgeinsets share improve this question I agree the documentation on imageEdgeInsets and titleEdgeInsets should be better but I figured out how to get the correct positioning without resorting to trial and error. The general idea is here at this question but..
How do you detect memory leaks on iPhone? http://stackoverflow.com/questions/494327/how-do-you-detect-memory-leaks-on-iphone leaks on iPhone I'm using the Leaks Instruments feature through Xcode to try and find memory leaks. I still haven't figured out how to use this program. I click Leaks in the program and see memory increasing as I do various things in the simulator...
Example or explanation of Core Data Migration with multiple passes? http://stackoverflow.com/questions/5995231/example-or-explanation-of-core-data-migration-with-multiple-passes to actually pull this off iphone objective c ios core data core data migration share improve this question I've figured out what Apple hints in their documentation . It's actually very easy but a long way to go before it's obvious. I'll illustrate..
Property vs. instance variable http://stackoverflow.com/questions/719788/property-vs-instance-variable be referencing it via self. ivar property here . The problem with using the @synthesize myVar _myVar strategy is I figured that writing code such as myVar some_other_object doesn't work. The compiler complains that myVar is undeclared. Why is..
Is it possible to target older iOS versions when using Xcode 4.2 and iOS 5 SDK? http://stackoverflow.com/questions/7760946/is-it-possible-to-target-older-ios-versions-when-using-xcode-4-2-and-ios-5-sdk iOS 4.2. 4 Open the projects Info.plist remove the setting Required device capabilities note it required armv7 btw I figured this out when I tried to manually add the app via the organizer and it reported Can't install application The Info.plist..
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 Update Although this code works App Store terms won't allow you to use this code within an app. Original Answer I figured this out after some heavy API research. Below is a method that creates an HTTP POST to send to Paypal and makes an NSURLRequest...
How to set up CMake to build an app for the iPhone http://stackoverflow.com/questions/822404/how-to-set-up-cmake-to-build-an-app-for-the-iphone a success in building a library and then peters out. iphone xcode cmake share improve this question I finally figured out how to do this. Here's what my CMakeLists.txt file looks like project test set NAME test file GLOB headers .h file GLOB..
iOS crash log catch, debug info.. Catch and send via email to the Dev team http://stackoverflow.com/questions/8233388/ios-crash-log-catch-debug-info-catch-and-send-via-email-to-the-dev-team you don't want to log too much in general. You cannot safely do logging when the crash happens. So rather once you figured out where the problem area is add some more logging there and try to reproduce it e.g. by using automated testing frameworks..
http://stackoverflow.com/questions/1056083/c-sharp-iphone-push-server Does anyone have any idea whats going wrong here c# iphone push notification share improve this question Figured it out. Replaced sslStream.AuthenticateAsClient gateway.sandbox.push.apple.com with sslStream.AuthenticateAsClient gateway.sandbox.push.apple.com..
What's the trick to pass an event to the next responder in the responder chain? http://stackoverflow.com/questions/1207287/whats-the-trick-to-pass-an-event-to-the-next-responder-in-the-responder-chain nothing else inbetween. But the event handling method of the VC is never called when I forward it. § Ideas guys Figured out weird stuff MyView's next responder is the view of the view controller. That makes sense because MyView is a subview..
http://stackoverflow.com/questions/12540152/iphone-ipad-app-orientation there any other solutions for this Edit using Xcode 4.5 iOS6 iphone xcode orientation share improve this question Figured it out the iOS6 SDK uses shouldAutorotate so here is my new code BOOL shouldAutorotateToInterfaceOrientation UIInterfaceOrientation..
iphone 5 simulator - Cannot click on bottom of screen? http://stackoverflow.com/questions/12678864/iphone-5-simulator-cannot-click-on-bottom-of-screen with my window. I will continue to investigate. iphone objective c ios iphone 5 share improve this question Figured it out. The main window was not getting resized although the view was. I deleted the window from my xib created a new one..
http://stackoverflow.com/questions/18817626/ios7-xcode-5-gm-color-of-uibarbuttonitem-and-selected-uisegmentedcontrol-part-o with correct color but selected segment is a same wrong color. any ideas iphone share improve this question Figured out what needs to be done thanks to WWDC 2013 Customizing Your App ™s Appearance for iOS 7. self.navigationController.navigationBar.tintColor..
Can't get scrollsToTop working on iOS7 http://stackoverflow.com/questions/19059024/cant-get-scrollstotop-working-on-ios7 the navigationBar is transparent and applies a blur to my collection tableViews as they scroll underneath. Update #3 Figured it out. Turns out I did have more than one scrollView on the screen. My app has a left drawer menu underneath the main part..
Is the APN Device Token unique to each individual app? http://stackoverflow.com/questions/2338267/is-the-apn-device-token-unique-to-each-individual-app on the app store. Thanks for any help iphone apple push notifications devicetoken share improve this question Figured it out. The Device Tokens are NOT unique to the phone app pairing. They are unique to the phone only. If you have multiple..
How to present MPMoviePlayerViewController from a UITabBarController? http://stackoverflow.com/questions/3519133/how-to-present-mpmovieplayerviewcontroller-from-a-uitabbarcontroller Anyone know what's going on iphone objective c mpmovieplayercontroller mpmovieplayer share improve this question Figured it out. I guess things get wonky because MPMoviePlayerViewController has a method added as a category to UIViewController..
How to recognize swipe gesture in UIScrollView http://stackoverflow.com/questions/3648967/how-to-recognize-swipe-gesture-in-uiscrollview handle it myself in touchesBegan Ended Thanks iphone uiscrollview gesture swipe share improve this question Figured it out. In my case my UIScrollView contained a UIImage that I allowed zooming. Apparently that meant that scrolling is enabled..
CSS background image rendering differently on iPhone http://stackoverflow.com/questions/3884444/css-background-image-rendering-differently-on-iphone other iPhones iPod touches . Any help greatly appreciated iphone css background image share improve this question Figured it out The iPhone has a megapixel limit for Jpegs after which it shrinks the Jpeg. There's a very good blog post about this..
How to perform DNS query on iOS http://stackoverflow.com/questions/5000441/how-to-perform-dns-query-on-ios is producing same IP for every host Resolved 0 220.120.64.1 any help iphone ipad ios share improve this question Figured out a change in this snippet makes it working if result TRUE NSMutableArray tempDNS NSMutableArray alloc init for int i..
Using 'Like' with the Facebook Graph API on iOS http://stackoverflow.com/questions/5281665/using-like-with-the-facebook-graph-api-on-ios Facebook facebookErrDomain error 10000. Anyone know why this is iphone facebook ios share improve this question Figured it out. You cannot pass nil to the parameters. So I created an empty NSMutableDictionary and passed that. Worked fine. By..
How to test the “renew” component of auto-renew subscriptions in iOS App Store Sandbox? http://stackoverflow.com/questions/6588539/how-to-test-the-renew-component-of-auto-renew-subscriptions-in-ios-app-store-s share improve this question Copied from the Apple's Developer Forum for those not willing to goto the forum... Figured it out but not thanks to the Apple docs 1 month subscriptions auto renew every 5 minutes. So far so good. They auto renew..
Can width/height of a powerpoint presentation be calculated on iPad http://stackoverflow.com/questions/7230660/can-width-height-of-a-powerpoint-presentation-be-calculated-on-ipad doing a scrollto pageHeight currentPage iphone objective c ios powerpoint dimensions share improve this question Figured it out. In this case the UIWebView acts as if it's an iFrame on an HTML page which has a source of some powerpoint file...
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