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  • What are the implications of multi-tasking in iOS 4.0 for developers?

    - by MrDatabase
    I just watched this video from Apple that shows multi-tasking on the new iPhone (running iOS 4.0). What are the implications of multi-tasking to developers? Include both positives and negatives. For example what happens if the user decides to launch two resource-intensives apps at the same time, one of the apps crashes and progress in a game (for example) is lost. Should developers be considering this when writing apps for the new OS and phone?

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  • Change in pitch of voice

    - by user340007
    Hi, I am creating an iPhone application in which when I make a call to anyone I should be able to change the pitch of my call voice in real time. So for that which framework or any third party library should I use? Thanks, Sunil.

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  • XCode Obj-C: Make new NSArray from one key each out of an Array of Dictionaries

    - by user323772
    This actually could be a multipart question. But here's the first part ... I have an array (actually in a plist) of dictionaries. Each dictionary has 3 keys in it: (title), (points), and (description). I am trying to make a NEW array with the values of the key "title" from each dictionary in that first array. Let me explain WHY I am doing this and maybe that will provide a better all around explanation. I am trying to let people pick from a pre-determined list. Heck, if this was a web page it would be very simple since all I really care about are the "points" and the "Title". On a web site I could simply do a drop down combo-box with the "points" being the value and the title being the text for each row. But this is not a web page. So what I am trying to do here is pop out a modal picker when they click the text field. The modal picker shows the alphabetical ordered "titles" from our new array. And whichever one they select, it closes the modal view and assigns that "title" text to the UITextField which cannot be edited by the user. I have some code to get my modal picker to pop out. But I need to feed it an array of just the "titles" of each dictionary in my real array. Thanks in advance (and yes I am a newbie)

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  • iOS didFinishLaunchingWithOptions method options==nil

    - by poopChai
    I was trying to fetch remote notification info when the app was not running,so I was told that I can get from : UILocalNotification *localNotification = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey] in method: - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions ,but still can't get info. Then I use alertView to show the info on iPhone(launch without Xcode),still can't get the info. Any other issue would cause this? Please let me know if you have any ideas.

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  • How i can i use the value of a variable from one class in another in objective c?

    - by user337174
    Hi i am fairly new to objective c and have been doing some iphone programming. Is it possible to look up the value of a variable in a different class? Basically what i am doing is running a function that exists in my app delegate from a view controller, but the app delegate needs to use a variable stored in the view controller from which the app delegate function was called. Make sense??? Any help would be grateful. James

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  • Set Autolock programatically

    - by Viral
    hi friends, I want to set auto lock my iphone/ipad/ipod screen programaticaly after some time delay. Can any one tell me how to do the same? if any one is having any suggestion please let me know. thanks in advance.

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  • get the click event on iphones inbuilt button copy and paste

    - by hardik
    hello all i am new bie in iphone development in my project there is one requirement that while editing text there are iphones inbuilt buttons copy paste and select all i want the clickevent on all this buttons and also want to display action sheet title on their respective click events please guide me how can i do that thanks in advance

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  • Inserting "£" in a string to a text file

    - by Harry
    iPhone Application writes data to a text file, saves it on the Documnets folder. Great that works If I place "£" in the string, or use [currencyStyle stringFromNumber] the text file will not be created. The "£" and the [currencyStyle stringFromNumber] works if the information is printed to a "New View" page on the simulator, pound and all Can someone please explain what's happening?

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  • Why is the application not starting from top...

    - by user536213
    i have created iphone game.When i pause the game using pause button i quit cliking quit button... Now when i start the game again ..the previous counter i created using this code... [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(updateTimerFunc) userInfo:nil repeats:YES]; the timer is 100 sec and moves to zero...now it start giving the difference of twwo ,,98,96,94 if i quit the game again ans start this time the difference will become of 4 96,92 ...its keep on increasing ....what is this issue? kindly help

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  • Image analysis on the iPhone

    - by user362808
    Hi, guys! Hopefully a quick one. Working on a devious little algorithm that'll automatically scan a user's iPhone for a photo of some emotional poignance (e.g. go back in time a ways, look for one of a group of photos that are proximally timestamped, etc.). Need a quick-and-dirty way of picking out a photo containing two people in close proximity to each other. I know that the OpenCV Python lib [for image processing] works on the iPhone, I'm just curious whether it's actually the best way of doing this (from scratch or otherwise). Cheers!

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  • Apple Itunes app limitations

    - by user339625
    I have a iphone game that i am creating and wanted to know a couple limitations once the person downloads the game and they sign in with a user name i want them to be able to download new content maps packs etc. What is the limit in size these downloads can be? where can this content be stored? thank you!

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  • accessing objective c++ methods

    - by Sreelal
    Hi, I am developing an application for iPhone.I am using some objective c++ classes with .h and .mm extensions.My problem is that when i am trying to access a method in .mm file from .m file i am geting a warning that "No '-methodname' found".how can i resolve this warnings Thanks in advance

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  • How to make an tiled background like on the web?

    - by mystify
    On the iPhone, how could I achieve the same tiled background effect? For example, I have an pattern image which I want to repeat only horizontally. Would I have to go the route in -drawRect: by myself and loop over to draw the pattern, or is there a convenient method to do that?

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  • Draw Road Line from current location to target place.

    - by Siva
    Hi I am new to iphone development. In my application, i want to draw a road map(driving/walking mode) from current location (wherever we are in) into target place which is given by user via textfield. All things should be done inside my application. Is there any idea? or any sample?

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