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  • Facebook writing on a wall problem - retrieves only null value.

    - by Viral
    hi all friends, I am making a game application in that I want to pass my score on wall of face book. I've completed all the things (the log in and message passing part) but when I passes the score via global variable, I am getting only null as a value and not the score that I want. Is there any way to pass data or string to Face book and write on a wall? My code is (void)viewDidLoad { static NSString* kApiKey = @"be60415be308e2b44c0ac1db83fe486b"; static NSString* kApiSecret = @"4f880c7e100321f808c41b1d3c813dfa"; _session = [[FBSession sessionForApplication:kApiKey secret:kApiSecret delegate:self] retain]; score = [NSString stringWithFormat:@"%@",appDelegate.myTextView]; [_session resume]; [super viewDidLoad]; } whre score is NSString and myTextView is NSString in other viewcontrollerfile, And appDelegate is global variable. Any help?? thanks in advance.

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  • delete last character UITextField

    - by Pierre
    Hi ! I have an UITextField and I just would like that every tap on a character, the first character is deleted. So just have one character in my textField every time. Moreover I would to to display every tap in the console log. Have you got an idea? Thanks!

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  • Return the name of the class instance with the highest 'someValue' instance variable

    - by Timbo
    I have a brand new Objective-C class called test. The test class has an instance variable called someValue, which contains an integer. I create 5 instances of the test class called aTest, bTest, cTest, dTest and eTest. The appropriate synthesize and property declarations for someValue are in place. Is there a clean way of returning the name of the class instance with the highest someValue value out of all the existing test class instances? The number of class instances may vary from the 5 in my example. Note I don't care what the value is, I just want to return the name of the class instance with the highest 'someValue' instance variable. I've tried a few NSMutable arrays however can only get the value not the name of the variable that contains it. Thanks in advance

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  • How to check the type of inputAvailable in iPad?

    - by iphoneDev
    Hi, I am implementing the sound recording functionality in my iPad app. I want to prompt the user to attach his headphone with microphone for better performance.For this I need to check that whether the user has connected the headphone with microphone or not. In the AVAudioSession there is a method inputIsAvailable.But this method returns 'Yes' for the inbuilt mic of iPad also.So,please suggest how to detect that whether the headphone with mic is connected to the device or not??

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  • How to recreate the UITabBarItem image filter?

    - by boliva
    Hi, I'm writing a custom UITabBar replacement, and I would like to know how to recreate the filter that the built-in implementation does with the UITabBarItem image - that blue shining on selected tabs and gray gradient on unselected ones. I guess it's a matter of using the source image alpha value as a mask and overlay it with a pre-made blue (or whatever color) shining image and another one grayed out, but I would like to know what is the best approach from a code point of view. Best,

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  • UINaviagtionBar not displaying?

    - by Rajendra Bhole
    Hi, I developing an application in which initially choose UINavigationController based application. In rooViewController xib i added two more UIView, the code is written as follows. @implementation RootViewController @synthesize introductionView, WheelView; (void)viewDidLoad { [super viewDidLoad]; [self.navigationController setNavigationBarHidden:YES]; } pragma mark pragma mark strart up screen: -(void)startIntroductionScreen{ if(window == nil) { window = [[UIWindow alloc] initWithFrame:CGRectMake(0, 0, 320, 480)]; } [window addSubview: introductionView]; [window makeKeyAndVisible]; } -(void)WheelScreen{ [window addSubview:carnivalWheelView]; [window makeKeyAndVisible]; self.navigationController.navigationBar.hidden = NO; [self.navigationItem setLeftBarButtonItem:[[UIBarButtonItem alloc] initWithTitle:@"Setting" style:UIBarButtonItemStylePlain target:nil action:nil] animated:YES]; } pragma mark pragma mark IBAction: -(IBAction)breakGlass:(id)sender{ [self startIntroductionScreen]; } -(IBAction)anotherView:(id)sender{ [self WheelScreen]; } In above code, when the -(void)WheelScreen method on the IBAction anotherView of invoke the UINaviagtionBar is not displaying. Thank's in advance.

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  • What keying option does the keychain use?

    - by Rudiger
    I have read into the keychain and have found that it uses Triple DES. What I can't find is what keying option it uses. I am guessing / hoping that its keying option 1 where all 3 passwords are unique but if thats the case I can only think of two passwords it can use (user password and App ID that comes from your dev cert) so where is the third coming from? Is it a key private to Apple? If its keying option 2 (first and third key are the same) it might not be secure enough for our company to rely on. Although that might sound paranoid I have to justify to our security department that it is secure enough.

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  • MPMoviePlayerController not setting the bounds for background image

    - by VXtreme
    I am using MPMoviePlayerController for playing the media . I want to set the image at the background of the player.The image is set accordingly but when i set the bounds for the image then the image is not set according to bounds . I have tried following code: UIImageView *imageView=[[UIImageView alloc]initWithImage:[operationControl getCoverImage:stringId]]; imageView.bounds=CGRectMake(0, 100, 200, 200); [moviePlayer.backgroundView addSubview:imageView]; [moviePlayer.backgroundView setBackgroundColor:[UIColor purpleColor]]; moviePlayer.controlStyle = MPMovieControlStyleDefault; moviePlayer.shouldAutoplay = YES; [moviePlayer setScalingMode:MPMovieScalingModeAspectFit]; [self.view addSubview:moviePlayer.view]; [moviePlayer setFullscreen:YES animated:YES];

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  • -(void)dealloc - How ? Objective - C

    - by sagar
    Please Note that - this is not similar than this question. OK. To understand my question, First of all please see both of these destructors. - (void)dealloc { [Marketdetails release]; Marketdetails=nil; [parsedarray release]; parsedarray=nil; [Marketid release]; Marketid=nil; [marketname release]; marketname=nil; [super dealloc]; } - (void)dealloc { [super dealloc]; [Marketdetails release]; Marketdetails=nil; [parsedarray release]; parsedarray=nil; [Marketid release]; Marketid=nil; [marketname release]; marketname=nil; } See, Both destructors have different code. In First Destructor first current class objects are released & then [super dealloc] is called. In second Desctructor first [super dealloc] is called. My question is as follows. Where should we write [super dealloc] ? first or last ? or it doesn't matter ?

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  • How Do I create a synchronous version of NSURLConnection

    - by quinn
    I am using NSURLConnection inside of an NSIncrementalStore to synchronize my NSManagedObject with rest based web service built in Rails. I am aware of +sendSynchronousRequest:returningResponse:error but my understanding is that will not allow me to access such things as the HTTP response status code which I will need to properly handle the response, my understanding is sendSynchronousRequest returns the data if it responds in the 200 range and fails if it doesn't and doesn't really give you much more than that. I'm assuming I will somehow have to block the current method call after the NSURLConnection is instantiated and unblock it after NSURLConnection's delegate sets some value that can be returned by the blocked method. I'm assuming this will involve some combination of NSLock and NSThread but I really don't know where to start with this, any help will be greatly appreciated, thank you.

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  • MKMapKit exception when using canShowCallout on annotation view

    - by Kendall Helmstetter Gelner
    I'm trying to use a pretty straightforward custom map annotation view and callout - the annotation view when I create it, just adds a UIImageView as a subview to itself. That works fine. However, when I call canShowCallout on the annotation view, An exception is thrown in MapKit immediately after returning the view. The end of the stack looks like: #0 0x94e964e6 in objc_exception_throw #1 0x01e26404 in -[MKOverlayView _addViewForAnnotation:] #2 0x01e22037 in -[MKOverlayView _addViewsForAnnotations:animated:] #3 0x01e1ddf9 in -[MKOverlayView showAddedAnnotationsAnimated:] #4 0x01df9c0e in -[MKMapView _showAddedAnnotationsAndRouteAnimated:] #5 0x01e0371a in -[MKMapView levelView:didLoadTile:] My viewForAnnotation is pretty simple: - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation { if ( ! [annotation isKindOfClass:[MyAnnotation class]] ) return nil; MyAnnotationView *useView = (MyAnnotationView *)[myMapView dequeueReusableAnnotationViewWithIdentifier:@"resuseview"]; if ( useView == nil ) { useView = [[[MyAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"resuseview"] autorelease]; useView.canShowCallout = YES; // if commented out view appears just fine } else { useView.annotation = annotation; } return useView; } As noted in the code, the annotation view works fine as is - until I add canShowCallout, then it crashes the first time the map gets the view.

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  • How to reference THE UIWindow from sub UIViewControllers?

    - by maralbjo
    I am trying to add another subview programmatically based on some event (user taps a button, for instance). My problem is that I am having problems referencing the (one and only) instance of UIWindow. I reach it from my appDelegate, because the MainWindow.xib and the appDelegate have been wired up. But I cannot reach the UIWIndow from anywhere else (I cannot draw that connection in IB, can I?) What techniwue is preferred to get a reference to (the one and only) UIWindow? ...so that I in turn can use the following code from my various UIViewControllers: [myOneAndOnlyWindow addSubview:oneOfManyViews.view]; [myOneAndOnlyWindow makeKeyAndVisible];

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  • Why doesn't this UIButton show its text label?

    - by Dan Ray
    Everything about this UIButton renders great except the text that's supposed to be on it. NSLog demonstrates that the text is in the right place. What gives? UIButton *newTagButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; [newTagButton addTarget:self action:@selector(showNewTagField) forControlEvents:UIControlEventTouchUpInside]; newTagButton.titleLabel.text = @"+ New Tag"; NSLog(@"Just set button label to %@", newTagButton.titleLabel.text); newTagButton.titleLabel.font = [UIFont systemFontOfSize:17]; newTagButton.titleLabel.textColor = [UIColor redColor]; CGSize addtextsize = [newTagButton.titleLabel.text sizeWithFont:[UIFont systemFontOfSize:17]]; CGSize buttonsize = { (addtextsize.width + 20), (addtextsize.height * 1.2) }; newTagButton.frame = CGRectMake(x, y, buttonsize.width, buttonsize.height); [self.mainView addSubview:newTagButton];

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  • When does validation happen in Core Data?

    - by dontWatchMyProfile
    From the docs: If you make changes to managed objects associated with a given context, those changes remain local to that context until you commit the changes by sending the context a save: message. At that point—provided that there are no validation errors—the changes are committed to the store. So does that essentially mean, that validation happens automatically as soon as I call -save?

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  • Setting custom UITableViewCells height

    - by Vijayeta
    I am using a custum UITableViewCell , which has some labels , buttons imageviews to be displayed.There is one label in the cell whose text is a NSString object and the length of string could be variable , due to this i cannot set a constant height to the cell in UITableViews : heightForCellAtIndex method.The ceels height depends on the labels height , whcich can be determined using the NSStrings sizeWithFont method . i tried using it , but looks like i m going wrong somewhere . Can anyone help me out in this , adding the code used in iniatilizing the cell if (self = [super initWithFrame:frame reuseIdentifier:reuseIdentifier]) { self.selectionStyle = UITableViewCellSelectionStyleNone; UIImage *image = [UIImage imageNamed:@"dot.png"]; imageView = [[UIImageView alloc] initWithImage:image]; imageView.frame = CGRectMake(45.0,10.0,10,10); headingTxt = [[UILabel alloc] initWithFrame: CGRectMake(60.0,0.0,150.0,post_hdg_ht)]; [headingTxt setContentMode: UIViewContentModeCenter]; headingTxt.text = postData.user_f_name; headingTxt.font = [UIFont boldSystemFontOfSize:13]; headingTxt.textAlignment = UITextAlignmentLeft; headingTxt.textColor = [UIColor blackColor]; dateTxt = [[UILabel alloc] initWithFrame:CGRectMake(55.0,23.0,150.0,post_date_ht)]; dateTxt.text = postData.created_dtm; dateTxt.font = [UIFont italicSystemFontOfSize:11]; dateTxt.textAlignment = UITextAlignmentLeft; dateTxt.textColor = [UIColor grayColor]; NSString * text1 = postData.post_body; NSLog(@"text length = %d",[text1 length]); CGRect bounds = [UIScreen mainScreen].bounds; CGFloat tableViewWidth; CGFloat width = 0; tableViewWidth = bounds.size.width/2; width = tableViewWidth - 40; //fudge factor //CGSize textSize = {width, 20000.0f}; //width and height of text area CGSize textSize = {245.0, 20000.0f}; //width and height of text area CGSize size1 = [text1 sizeWithFont:[UIFont systemFontOfSize:11.0f] constrainedToSize:textSize lineBreakMode:UILineBreakModeWordWrap]; CGFloat ht = MAX(size1.height, 28); textView = [[UILabel alloc] initWithFrame:CGRectMake(55.0,42.0,245.0,ht)]; textView.text = postData.post_body; textView.font = [UIFont systemFontOfSize:11]; textView.textAlignment = UITextAlignmentLeft; textView.textColor = [UIColor blackColor]; textView.lineBreakMode = UILineBreakModeWordWrap; textView.numberOfLines = 3; textView.autoresizesSubviews = YES; [self.contentView addSubview:imageView]; [self.contentView addSubview:textView]; [self.contentView addSubview:webView]; [self.contentView addSubview:dateTxt]; [self.contentView addSubview:headingTxt]; [self.contentView sizeToFit]; [imageView release]; [textView release]; [webView release]; [dateTxt release]; [headingTxt release]; } textView = [[UILabel alloc] initWithFrame:CGRectMake(55.0,42.0,245.0,ht)]; this is the label whose height and widh are going wrong

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  • How to tile a UIWebView?

    - by franky
    I need to use tiles with a UIWebview to improve the rendering and scrolling of the content. I tried to find some info in Google but it seems that there are no examples or technical info about this subject. I am doing some test with CATiledLayer class without luck... Basically, I want to replicate the same that Mobile Safari does with the content of a website. You can see how Safari makes tiles when you see the squared background. Any help will be very welcome! Thanks in advance, Franky

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  • Memory Warning but Small Live Bytes

    - by Kamchatka
    Hi everyone, In my application, I get a memory warning of level 1 and then 2 after repeating some action (choosing a picture + processing) several times and then a crash. The leak tool doesn't show any leak. I'm also following the Allocations tool in Instruments and my Live Bytes are roughly 4 MB, overall I allocate 113 MB. At maximum I have maybe 20 MB in memory when the picture is loaded. Since I have to repeat an action to get to the crash, it is very likely to be a memory leak. However, I don't know how to locate it since my live bytes are 4 MB and things supposed to be allocated (apart a small leak of ~100 KB in the UIImagePickerController). How much can I trust the memory leak/allocation tools? Would you have an advice to help me locate the reason of the problem?

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  • Setting Twitter and Facebook statuses

    - by Chris S
    Are there any C# libraries for integrating Facebook status updates and twitter updates (preferably with url shortening) in Monotouch without too much heavy lifting? I know there is a Facebook kit already for objective-C, I really only need status updating however.

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  • Simple ViewController / View, remove white bar?

    - by fuzzygoat
    I am just looking at setting up a simple viewController programatically, I have a ViewController.xib file that I have set the background color to RED in interface builder. I have also added the following to my AppDelegate.m @implementation syntax_MapViewAppDelegate @synthesize window; -(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { viewController = [[MapViewController alloc] init]; [window addSubview:[viewController view]]; [window makeKeyAndVisible]; return YES; } -(void)dealloc { [viewController release]; [window release]; [super dealloc]; } @end When I run the code it does what I expect apart from the white bar at the bottom of the screen, can anyone give me any pointers in how to remove this? I have a feeling I might need to position the view within the window, but I am not sure how? cheers Gary

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