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  • reloading table

    - by edie
    Hi... I've have a table view that consist of item list that depends on the item that were purchased using in app purchasing. My question was how can I reload the tableView when the purchasing was completed/(or when new item was added on my list). The response of the storekit takes time to complete. Are there anyways to tell the app that the purchasing was completed and new item was added on my list so that I can reload my tableView. At this time I reloading my table view by adding [myTableView reloadData] in viewWillAppear method. But what if the user was already viewing the tableView, I can't reload the tableView because the viewWillAppear had passed. thanks...

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  • Rewarding iOS app beta testers with in app purchase?

    - by Partridge
    My iOS app is going to be free, but with additional functionality enabled via in app purchase. Currently beta testers are doing a great job finding bugs and I want to reward them for their hard work. I think the least I can do is give them a full version of the app so that they don't have to buy the functionality themselves. However, I'm not sure what the best way to do this is. There do not appear to be promo codes for in app purchase so I can't just email out promo codes. I have all the tester device UDIDs so when the app launches I could grab the device UDID and compare it to an internal list of 'approved' UDIDs. Is this what other developers do? My concerns: The in app purchase content would not be tied to their iTunes account, so if beta testers move to a new device they would not be able to enable the content unless I released a new build in the app store with their new UDID. So they may have to buy it eventually anyway. Having an internal list leaves a hole for hackers to modify the list and add themselves to it. What would you do?

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  • How to get X,Y,Z rotations of vertices on a sphere at the origin?

    - by Stoff81
    Hey, I have a sphere in my game world and i would like to place a plane at each vertex on this sphere for debugging purposes. The planes should be orientated so that they lie flat against the sphere (perpendicular to the normals). The sphere is located at the origin, so all the vertices are relative to that. If my thinking is correct, i should be able to do this using the positions of the vertices and some simple trigonometry. I have tried a few combinations but have had no joy yet. I would greatly appreciate some help on this. Thanks. Here is my code: float xRot = RADIANS_TO_DEGREES(sinf(vertex.x/PLANET_RADIUS)); float yRot = RADIANS_TO_DEGREES(cosf(vertex.y/PLANET_RADIUS)); glRotatef(xRot, 1.0, 0, 0); glRotatef(yRot, 0, 1.0, 0);

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  • iPad Camera Connection kit?

    - by Adam
    Does anyone know if it is possible to access the iPad's camera connection kit? I would like to read the files off the connected mass storage device. Would this be possible or is this something that only Apple can do in there apps. Thanks

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  • Direct VoIP call from one iOS device to another

    - by user1682856
    Could you please give some advises. I'am going to develop peer-to-peer VoIP iOS application. And want do it without any SIP proxy, SIP providers and other servers. Just VoIP calls frpm iOSdevice-to-iOSdevice. Both iOSdevice could be somewhere in Internet. Is it real in VoIP (with PJSIP for example and general with SIP)? Could you please point me to main keys that I need for development. I'am already read these topics. Is it real solve problems with addressing in my configuration. Anybody know is PJSIP could help with correcting addresing.

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  • UIPickerview is not visible in additionally added view

    - by MaheshBabu
    Hi folks, i created an additional IBOutlet UIView. at the same time i place the IBOutlet UIPicker view in additional view. Give connections and add Addtional view as subview to main view. As [self.view addsubview:addtionalview]; I write this code in one button click event. Unfortunatly i got additional view in button click but it did n't show UIPicker. whats the wrong. I already have Two UIPicker view in main view. How can i add UIPicker view in added view. Thank u in advnace.

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  • Best practice to pass a value from pop up control on iPad.

    - by Tattat
    It is an iPad app based on SDK 3.2. I have a MainUIView, that is subclass from UIView, it have a UIButton and a UILabel. When user press the UIButton, the pop up control will be appeared with a table view. When the user select a cell from the table view, the UILabel changes content base on the user click, and the pop up table view will disappear. The question is, how can I pass the "selected cell" to the UILabel. I am thinking making a "middle man" object. When the user click the UIButton, and the "middle man" will pass to the table. When the cell is selected, the "middle man" will store the idx, and call the UILabel change content from the value of "middle man". But I think it is pretty complex to implement, is there any easier way to implement it? thz u.

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  • Received memory warning on setimage

    - by Sam Budda
    This problem has completely stumped me. This is for iOS 5.0 with Xcode 4.2 What's going on is that in my app I let user select images from their photo album and I save those images to apps document directory. Pretty straight forward. What I do then is that in one of the viewController.m files I create multiple UIImageViews and I then set the image for the image view from one of the picture that user selected from apps dir. The problem is that after a certain number of UIImage sets I receive a "Received memory warning". It usually happens when there are 10 pictures. If lets say user selected 11 pictures then the app crashes with Error (GBC). NOTE: each of these images are at least 2.5 MB a piece. After hours of testing I finally narrowed down the problem to this line of code [button1AImgVw setImage:image]; If I comment out that code. All compiles fine and no memory errors happen. But if I don't comment out that code I receive memory errors and eventually a crash. Also note it does process the whole CreateViews IBAction but still crashes at the end. I cannot do release or dealloc since I am running this on iOS 5.0 with Xcode 4.2 Here is the code that I used. Can anyone tell me what did I do wrong? - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. [self CreateViews]; } -(IBAction) CreateViews { paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask ,YES); documentsPath = [paths objectAtIndex:0]; //here 15 is for testing purposes for (int i = 0; i < 15; i++) { //Lets not get bogged down here. The problem is not here UIImageView *button1AImgVw = [[UIImageView alloc] initWithFrame:CGRectMake(10*i, 10, 10, 10)]; [self.view addSubview:button1AImgVw]; NSMutableString *picStr1a = [[NSMutableString alloc] init]; NSString *dataFile1a = [[NSString alloc] init]; picStr1a = [NSMutableString stringWithFormat:@"%d.jpg", i]; dataFile1a = [documentsPath stringByAppendingPathComponent:picStr1a]; NSData *potraitImgData1a =[[NSData alloc] initWithContentsOfFile:dataFile1a]; UIImage *image = [[UIImage alloc] initWithData:potraitImgData1a]; // This is causing my app to crash if I load more than 10 images! //[button1AImgVw setImage:image]; } NSLog(@"It went to END!"); } //Error I get when 10 images are selected. App does launch and work 2012-10-07 17:12:51.483 ABC-APP[7548:707] It went to END! 2012-10-07 17:12:51.483 ABC-APP [7531:707] Received memory warning. //App crashes with this error when there are 11 images 2012-10-07 17:30:26.339 ABC-APP[7548:707] It went to END! (gdb)

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  • Issue with UIImage files not being found on phone

    - by Driss Zouak
    Note: Using Monotouch. I have a directory called Images where I have all my PNG files. In my code I have the following _imgMinusDark = UIImage.FromFile("images/MinusDark.png"); On the simulator it runs fine, on the phone it's null. I have the Images folder content (all the PNGs) in my MonoDevelop marked as Content in terms of Build Action. What am I missing? thanks

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  • Warning generated by UIButton setting code

    - by Spider-Paddy
    I have a for loop setting the background images on buttons, basically the buttons are thumbnail previews of different items & can't be set statically, however the code gives an warning because it runs through all the UIViews but then calls setBackgroundImage which does not apply to all views. The warning is an irritation, I understand what it's complaining about, how can I get rid of it? (I don't want to turn off the warning, I want to fix the problem) // For loop to set button images for (UIView *subview in [self.view subviews]) // Loop through all subviews { // Look for the tagged buttons, only the 8 tagged buttons & within array bounds if((subview.tag >= 1) && (subview.tag <= 8) && (subview.tag < totalBundles)) { // Retrieve item in array at position matching button tag (array is 0 indexed) NSDictionary *bundlesDataItem = [bundlesDataSource objectAtIndex:(subview.tag - 1)]; // Set button background to thumbnail of current bundle NSString *picAddress = [NSString stringWithFormat:@"http://some.thing.com/data/images/%@/%@", [bundlesDataItem objectForKey:@"Nr"], [bundlesDataItem objectForKey:@"Thumb"]]; NSURL *picURL = [NSURL URLWithString:picAddress]; NSData *picData = [NSData dataWithContentsOfURL:picURL]; // Warning is generated here [subview setBackgroundImage:[UIImage imageWithData:picData] forState:UIControlStateNormal]; } }

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  • Sorting Objects in NSArray

    - by Sam Budda
    I have an NSArray with 3 objects in it. Each object is made up of 5 values. How can I sort by Date with in the objects? result: ( gg, "2012-10-28 01:34:00 +0000", "Church Bells", "pin_red", 1 )( iu, "2008-09-22 17:32:00 +0000", "Birthday Song", "pin_red", 1 )( "my birthday woo hoo", "2012-09-04 19:27:00 +0000", "Birthday Song", "pin_blue", 1 ) The results I am looking for - Sorted Array should look like this. ( iu, "2008-09-22 17:32:00 +0000", "Birthday Song", "pin_red", 1 ) ( "my birthday woo hoo", "2012-09-04 19:27:00 +0000", "Birthday Song", "pin_blue", 1 ) ( gg, "2012-10-28 01:34:00 +0000", "Church Bells", "pin_red", 1 ) I am getting this array from my nsdictionary object. dictionary = [[NSMutableDictionary alloc] initWithContentsOfFile:stringsPlistPath]; stringsMutableArray = [[NSMutableArray alloc] initWithObjects:nil]; for (id key in dictionary) { [stringsMutableArray addObject:[dictionary objectForKey:key]]; }

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  • Images appear in simulator but not when uploading to ipod touch (3.0)

    - by user139190
    I created a simple test app with an image (as well as a button with an image) and it runs fine in the simulator. But when uploading to the iPod, none of the images appear. The button appears but with no image. A few things worth mentioning: - Today's massive achievement was making it beyond the code signing errors and so I have not had any applications uploaded to the device until now. IOW, it's not a sudden change. - The png image is about 100 x 200. - I also set an icon image (png 24 x 24) that does not appear either. Thanks in advance for any advice.

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  • Why are all my masked views unmasked in my view snapshot?

    - by mystify
    I'm taking a snapshot of an view. This view has got some subviews which have layer masks applied to them. For some reason, those masks take no effect in the snapshot and the masked parts are completely visible. UIGraphicsBeginImageContext(theView.frame.size); [theView.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); I assume this is a bug in the framework. But maybe it's not? Did I do anything wrong here?

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  • NSUserDefaults: detecting nil

    - by alJaree
    I have some code in my classes to read from NSUserDefaults NSUserDefaults *defs = [NSUserDefaults standardUserDefaults]; score = [defs integerForKey:@"score"]; this causes a crash. Im guessing it is because the score value is nil or doesnt exist. How can I check if it is nil? EDIT. The following code causes a crash when storing to NSUserDefaults. NSUserDefaults *defs = [NSUserDefaults standardUserDefaults]; [defs setInteger:0 forKey:@"score"]; [defs setInteger:3 forKey:@"lives"]; [defs release]; Im not sure what the issue is On some crashes there isnt even a crash report in the console. Thanks

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  • UInavigationcontroller and UItableviews

    - by sudhakarilla
    I have one issue with UInavigationcontroller In my firstview i have button.If i click that button it should open tableview. if i click that tableviewcell is select the nextview willbe open.In my nextview i have backbutton click return to the tableview.if doesnot navigationcontroller. Please help in this issue.

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  • Problem when subClassing NSDate

    - by iFloh
    Hi, I first time tried to subClassed an NSDate to give it 2 methods that I need. Compiles fine, but in runtime I try to access it I get an error. Lets say I just want the current date which is unmodified in the subClass: [myNSDate date]; I get the error -[NSDate initWithTimeIntervalSinceReferenceDate:]: method only defined for abstract class. Define -[myNSDate initWithTimeIntervalSinceReferenceDate:]! what is different?

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  • CoreData: Sort and Section on Relationships

    - by David.Chu.ca
    I have two questions about using Core Data. Taking the typical case of Employee and Department as an example. The Employee entity has a relationship field "deparment" as to-one to Department, and the Department entity has a relationship "employee" as to-many to Employee entity. I would like to display all the employees in a TableView in sections of department's names. I think that the NSFetchedResultsController should use Employee as entity. I am not sure how to use Department's name as a sort criteria, since it is in an employee's relationship field department's name. Can you use "DepartmentName" as a sort and add this to Employee entity class as a method which will return department's name for a given employee? The second question is the section name. I would like to use department names as sections. Can I use the above method as sectionKeyPath's value for the NSFethedResultsController? Not sure if I am on the right track.

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  • Does it make a difference in performance if I use self.fooBar instead of fooBar?

    - by mystify
    Note: I know exactly what a property is. This question is about performance. Using self.fooBar for READ access seems a waste of time for me. Unnecessary Objective-C messaging is going on. The getters typically simply pass along the ivar, so as long as it's pretty sure there will be no reasonable getter method written, I think it's perfectly fine to bypass this heavy guy. Objective-C messaging is about 20 times slower than direct calls. So if there is some high-performance-high-frequency code with hundreds of properties in use, maybe it does help a lot to avoid unnessessary objective-c messaging? Or am I wasting my time thinking about this?

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  • Why does UITableViewCell have a contentView property?

    - by mystify
    What's the point of this contentView property? I mean: Why aren't all the subviews just added to self? Let me get that right: Every cell is a view (UITabvleViewCell is a UIView subclass). And this fat view has another fat view with same bounds sitting on top of it, called contentView. That contentView then carries all those other subviews. Now why didn't they save that extra chunk of memory? Is there any genius logic behind this decision? Would love to understand the reason for this.

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