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• Cocoa Touch best practice for capturing/logging/diagnosing crashes

  - by Dylan

  As I get closer to releasing my first public iPhone app I'm concerned about catching crashes in the field. I'm curious to hear how others have gone about this. I'm not sure what's possible outside of the debugger. Is all lost with an EXC_BAD_ACCESS or can I still catch it and get something useful into a log? Is the program main() the spot to put a @try/@catch?

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• Clearing the KeyChain certificates and install again on Mac

  - by fyasar

  Hi There, I decided that i should clear my keychain access certificates, beauce it's containing lot of test certificate, i heard that i can clear my all certificates from keychain's preferences "Reset My Defult..." button. But when applied to reset to keychain i need to reinstall my iphone developer certificates again. Did anyone make this ? And I would like to know from start to end. Thank you

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• database conection problem in objective-c

  - by kunal-dutta

  hi.. When i used database connection with sqlite in iPhone that time data is fetched in only once fromdatabase.Next time i can insert data but cant fetch the data from database.So plz help me out to solve this problem. Thnx Kunal

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• How to view sqlite database by button press

  - by fai

  hye all, i have built a SQLite database and wanna to add into iphone app. already i have add it resource-add-x.sqlite and also add libsqlite3.0.dylib.framework but i don't know what is the showing code. I wanna to show the data in the db when user pressed button. Can anyone help me to give an example on how the db can be view when button is press??

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• objectiveflickr geotag

  - by user295944

  I am trying to use objectiveflickr to upload an image to flickr from my iphone but for some reason it strips the EXIF info (i want the image geotagged), is there a way around this?

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• Facebook Connect to send Facebook User

  - by KPT

  Hi There, I am developing an iPhone application that will send sms the logged in user friends'. I am using FacebookConnect for the same. The problem is I am getting the uid of all friends but what is the way to send SMS to these uids(friends UID). Thanks, UPT

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• How i calling UITableViewController in UITabBarController screen using Navigation bar on button clic

  - by Rajendra Bhole

  Hi, My i have to develop simple window based iphone application. In my first screen I design the UITabBarController with four TabBarButton.On first Tab screen contains three buttons. When i click on of the button, the screen should navigate on simple tableView screen.But tableView screen the TabBarController should have be visible. Means simply first replacing with table view and move back to again previous one(The UITabBarController should be visible on all srceen).

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• What is the best mobile website programming language to choose?

  - by rhuisman

  We currently have an iPhone app and would like to build a mobile website that has similar functionalities so it is accessible on multiple types of handsets. what programming language should we best use for this? our app would like to use geolocation, camera/photo upload and access to the phone's contacts. hope you can help us out! best, Robbert

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• Speed of NSScanner vs NSXMLParser?

  - by Chris

  I have an iPhone App that reads in an XML file, then pulls out the necessary data by looping through an NSScanner. The XML is not particularly long. I am wondering if it would be worth the work to implement NSXMLParser in place of using NSScanner, if I will see any real improvement in speed?

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• Can you receive SMS messages in your app on iPhones?

  - by Frank

  I am wondering if you can officially receive SMS messages in your app (and remove the default SMS app). I believe it can be done on Android, I just wonder if this is possible on iPhone OS.

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• Can the memory used by MKMapView be released some how?

  - by gdr

  I am using an MKMapView in my iPhone application. When I load this view, the activity monitor instrument shows that the real memory of my App is increasing significantly. It keeps going up as you move the map around or zoom in and out. Once the View controller that loads this view is removed, the memory that was allocated due to the usage of the mapView does not get freed up. Is there something that can be done to get all this memory back?

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• How to access API reference from Xcode ?

  - by CodeFlakes

  I'm tired of switching between xcode and the browser to check iPhone API reference from Apple web site. Any better way to to it directly from XCode ? Ideally I'd like to select a word and search for it in the APi reference automatically.

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• CGGradient in an CGPath

  - by catlan

  Is it possible to draw a gradient in a path on the iPhone? I'm looking for a replacement of the mac os x method -drawInBezierPath:(NSBezierPath *)path relativeCenterPosition:(NSPoint)relativeCenterPosition of NSGradient.

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• Set brightness, contrass on selected image

  - by Viral

  hi, I want to set brightness and contrast on the image that is selected from the photo library of iphone, is there any way to do the same using/not using open GLES. I've got some code from the developer.apple.com but that is for a single image and i can't use images from photo library, do any one know please let me know how to this. regards viral.

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• is there a way to disconnect from facebook login without calling logout

  - by Joey

  Basically, I'd like to know how I can logout of my facebook session if I am in an iphone app and have connected to facebook (such that I do not have to repeatedly enter my login/password). Normally you'd disconnect in the app somewhere like in the options, but if this is not available (i.e. anything that triggers the FBSession logout method) is there some other way to do it? I'm guessing one could restore their phone to factory settings or something.

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• How to programmatically generate an audio podcast file with chapters and text track?

  - by adib

  Hi Anybody know how to programmatically generate audio podcast files with bookmarks that can be used in iTunes / iPod / iPhone / iPod touch? Specifically text bookmarks (bookmarks with titles) that the listener can skip to a specific point in time in the audio file. Also how to add the text transcription of the podcast's content. Even better if you have an example Cocoa code or library to write the audio file. Thanks.

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• How do you stream M4V video on the web without using Flash?

  - by Alex

  I'm building a web site that needs to stream video and be friendly for handheld devices (especially the iPhone). Some handhelds don't support Flash so I'm avoiding the use of a Flash player. How does Youtube stream its videos so that they play on both desktops and iPhones? I'm looking for a player, or multiple players, which can be somehow activated based on the user's device. Your help and guidance are much appreciated. Thanks.

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• NSDateFormatter - set device language as locale?

  - by Emil

  Hey. I'm trying to get the iPhone to display dates formatted by an NSDateFormatter in the current device language. I have tried setLocale:[NSLocale currentLocale], but that only returns 5 instead of May (or Mai, as I want it to be). Any help is appreciated. Thanks! :)

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• iPad touch detected only in 320x480 region

  - by kape123

  I'm upgrading iPhone app and so far everything is going well (managed to resize screen display for most forms). However, I can't solve one problem - the touch is detected only in old, 320x480 region. Any ideas how can I solve that? Thanks

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• Difference between writing to file atomically and not

  - by Mark Szymanski

  What is the difference in writing to files atomically on the iPhone in objective-c and not, is there any performance difference between the two? Thanks in advance!

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• Use tab bar inconjuction with navigation bar?

  - by bipolarpants

  Hello, I'm brand new to Objective C programing for the Iphone. I was wondering if it is possible to use a tab bar, and in one of the tabs have a navigation bar so that I could drill down? I tried to look for tutorials and found this one http://www.devx.com/wireless/Article/45161/1954, I got it to work as written but I couldn't figure out to display the data I wanted. Does anyone know how? or does anyone know a tutorial for complete beginners?

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• Code Sign error after renewing my certificate

  - by thierryb

  Hello, my certificate has just expired. I renewed it on Team section, then renew provisioning profile, and reinstall them on my keychain and xcode, and then I get this error : Code Sign error: The identity 'iPhone Developer' doesn't match any valid certificate/private key pair in the login keychain What should I do ? Thanks a lot Thierry

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• Is there a quick rule to know when to release variables?

  - by iamdadude

  I have been doing ObjectiveC for iPhone for a few months now, and I get pretty much everything except for variable / object releasing. Are there any rules of thumbs that would help me understand when is the right time to release them? Thanks for any help.

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• Retrieve purchased information in In-App purchase

  - by kunal-dutta

  I have created in-app purchase for non-consumable object application in iPhone using with store kit its properly working, but i am not getting that from which function information about product is checked that product is purchased or not. please help me out thnx Kunal

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• coco2d tab view for multi player

  - by godzilla

  I am currently developing a card game for the iphone using cocas2d. I am currently in need of a tab view with each tab representing a player and his / her set of cards. Currently i have a single view representing just one player. It seems as though cocas2s is not really built do have multiple views, to do this and it would require some serious amount of hacking around with the code. What would be the most efficient way to accomplish this?

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