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  • AVAudioPlayer Memory Leak - Media Player Framework

    - by Krishnan
    Hi Friends, I am using AVAudioPlayer object to play an audio. I create an audioPlayer object initially. I play an animation and when ever animation starts I play the audio and pause the audio when the animation is finished. I initially found three memory Leaks using Instruments. (The responsible caller mentioned was RegisterEmbedCodecs). After suggestion from a "ahmet emrah" in this forum to add MediaPlayer framework, the number of leaks reduced to one. And is there any way to completely get rid of it? Thanks and regards, krishnan.

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  • Prevent status bar from receiving touch events

    - by Typeoneerror
    Edit After further testing, it appears that the part of my button that are not clickable are where the status bar used to be. I'm hiding the status bar with : // -- Override point for customization after app launch [[UIApplication sharedApplication] setStatusBarHidden:YES]; But it's still receiving touches. Any idea on how to disable this? Is there's a bounding box on an application that receives touch events? I created a few sample round rect buttons and placed them in different places in my view. The ones in the center of the view receive touch events (and show the highlighted blue color) but if I place a button near the edges of the view, only parts of them are clickable in the simulator. Is this because of Apples style guidelines? I placed a button exactly where a UITabNavigationItem would appear and only the bottom half of it is clickable.

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  • Why does presentModalViewController not always work?

    - by E-Madd
    My application requires data from a server in order to run. The first thing it does is displays a view controller (LoadingViewController) that is responsible for checking if the data is saved to my PersistentStoreCoordinator. If the data isn't cached locally, it gets it from my server and caches it, and posts a notification that the LoadingViewController is listening for. When that notification comes through, LoadingViewController presents the application's MainViewController using the presentModalViewController with a flip animation. So far, so good... no errors. However, if the application loads and determines the data IS cached - the presentModalViewController does not work and the main application view never appears. No errors. I've even gone as far as adding a button to the Loading view that executes the same code when pressed and the damn thing works. I'm suspicious it has something to do with the timing of it all but I'm clueless as to what I can do to ensure the view is displayed with that flipping animation if the data is already cached locally. Any suggestions?

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  • Dynamically calculate frequency value.

    - by MS Nathan
    Hi, In my app, I want to find/calculate the audio frequency as dynamically when i am recording an audio and no need to save, play and all. Now i am trying to do that with help of an aurioToch sample code. In that sample, inside FFTBufferManager class methods such as GrabAudioData and ComputeFFT,Here I am not able to find where they are calculating frequency value as dynamically depends on the audio sound and I spent more than 5 days.please help me.

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  • presentViewController or presentModalViewController not supporting orientation in iOS 6

    - by Prateek
    I am new to this technology. I am using this code if ([self respondsToSelector:@selector(presentViewController:animated:completion:)]) { [self presentViewController:navigationControllerCustom animated:YES completion:nil]; } else { [self presentModalViewController:navigationControllerCustom animated:YES]; } My application has two orientation Portrait and Portrait upside down. This code works well with iOS 5.1, but orientation does not work on iOS 6 I have also added this code on my navigationControllerCustom class - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationPortrait || interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown); } -(NSUInteger)supportedInterfaceOrientations { return (UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown); } Please help me to solve this issue. Thanks in advance.

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  • iOS - how to read and write a plist of this format

    - by Suchi
    I have an xml of the following format - <plist version="1.0"> <array> <dict>...</dict> <dict>...</dict> </array> </plist> I am trying to write it into a plist using - NSDictionary *temp = [NSPropertyListSerialization propertyListWithData:returnData options:NSPropertyListImmutable format:&format error:&errorDesc]; [self writeToPlistFile:@"myList.plist" : temp]; where the method is -(BOOL)writeToPlistFile:(NSString*)filename:(NSDictionary*)data{ NSArray * paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString * documentsDirectory = [paths objectAtIndex:0]; NSString * path = [documentsDirectory stringByAppendingPathComponent:filename]; BOOL didWriteSuccessfull = [data writeToFile:path atomically:YES]; return didWriteSuccessfull; } I then want to read it and place it into a dictionary. How would I do that?

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  • MKMapView not calling delegate methods

    - by criscokid
    In a UIViewController I add a MKMapView to the view controlled by the controller. - (void)viewDidLoad { [super viewDidLoad]; CGRect rect = CGRectMake(0, 0, 460, 320); map = [[MKMapView alloc] initWithFrame:rect]; map.delegate = self; [self.view addSubview:map]; } Later in the controller I have - (void)mapViewDidFinishLoadingMap:(MKMapView *)mapView { NSLog(@"done."); } Done never gets printed. None of the other delegate methods get called either like mapView:viewForAnnotation: I use a MKMapView in an another app, but this seems to happen on any new application I make. Has anyone else seen this behavior? EDIT: The problem seems to be when UIViewController is made the delegate of the MKMapView, a direct subclass of NSObject seems to work okay. I can work around like this, still seems very odd since I've done it before.

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  • How to get a MPMediaItem from MPMoviePlayerController?

    - by raziiq
    How can i get MPMediaItem from MPMoviePlayerController as i can get it in case of MusicPlayer as follows MPMediaItem *currentItem = self.musicPlayer.nowPlayingItem; But how to get it from MPMoviePlayerController? Is it even possible? Infact i want to get the information about the current movie item playing, for example its title, artist etc, is it possible to get the metadata for a video file?

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  • How much more complex is it to draw simple curves, lines and circles in OpenGL ES rather than in Qua

    - by mystify
    Is OpenGL ES really so much faster? Why? And is it really so horrible complicated to draw such simple things in OpenGL ES compared to drawing these in Quartz 2D? For example, I have a UIView subclass with -drawRect: implemented, where I draw some lines, curves and circles. Just simple paths, with some shadow. What would I do in OpenGL ES? Isn't there this nice EAGLView layer thing? One thing that comes to mind is how do touch events go into OpenGL ES? Maybe that's the complex thing about it? Are there tutorials on basic drawing operations in OpenGL ES?

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  • productsRequest response method is not calling

    - by jeeva
    Hi i am implementing in app purchase i am sending request to apple store through - (void) requestProductData { SKProductsRequest *request= [[SKProductsRequest alloc] initWithProductIdentifiers: [NSSet setWithObjects: featureAId,featureBId,nil]]; // add any other product here request.delegate = self; [request start]; } the response method - (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response { [purchasableObjects addObjectsFromArray:response.products]; } is not getting call at all. only once it called out of ten attempts i tried. any idea regarding this..? thanks in advance

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  • UITableView less than full screen from code?

    - by Gerry
    I have a number of views that use UITableView. (I use UIViewController and implement UITableViewDelegate and UITableViewDataSource interfaces.) I'm having trouble creating a tableview that leaves room at the top for a toolbar. How to I size and layout the Tableview so that it is less than full screen? Is this an AutoResizing mask problem? Thanks, Gerry

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  • IOS where to put the configuration of facebook sdk

    - by Carol Smith
    I am trying to integrated my IOS 7 application with Facebook SDK I following this official tutorial https://developers.facebook.com/docs/ios/getting-started which states Configure the .plist Follow these three steps: Create a key called FacebookAppID with a string value, and add the app ID there. Create a key called FacebookDisplayName with a string value, and add the Display Name you configured in the App Dashboard. Create an array key called URL types with a single array sub-item called URL Schemes. Give this a single item with your app ID prefixed with fb. This is used to ensure the application will receive the callback URL of the web-based OAuth flow. The finished .plist should look something like this: My question is where to put these values? They already put this image, maybe it helps you to answer me Edit The problem that I don't have any plist file in my framework in xcode and I can't add a new one because if i did, I would have to add all the variables that you see in the image but the tutorial just stated about some of them

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  • Flipping View transition becomes clunky when using UIPickerViews with a large number of elements

    - by user302246
    I have a very simple app created with the Utility Application project template on XCode. My MainView has two UIPickerView components and two buttons. The FlipSideView has another UIPickerView. The pickers on the main view each have 4 segments and each segment has 8 rows. The picker on the flip side has just 1 segment with 8 rows. All rows on all pickers are just text. With just this setup, pressing the button to flip the view back and forth displays a noticeable delay before the animation actually starts, and then the animation actually seems to go faster than what it should, like it's trying to make up for the lost time. I removed the pickers in interface builder and loaded the app on the phone and the animation now seems natural. I also tried just one picker (the flipside one) and things still seem normal. So my current theory is that the number of objects involved in the main view is the cause. The thing is that I don't think it's that many (4 x 8 x 2 = 64), but I could be completely wrong. This is pretty much my first app so maybe I'm just doing something grossly wrong, or maybe the phone is has a lot more limited processing than I thought. I am thinking of creating the picker views with pickerView:viewForRow:forComponent:reusingView: to see if this hopefully performs better, but I'm not sure if this is just a waste of time. Any suggestions? Thanks Ruy P.S.: Testing on a 3G phone on 3.1.2

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  • How do you do a foursquare style uitableview refresh?

    - by nickthedude
    If you haven't seen their implementation Of the refresh of a tableview it is extremely slick. I was surprised to see no search results asking for this to be explained so I figured ask it myself. If you haven't seen it, it basically adds a subviews to the uitableview above the header to the blank part of the screen when you pull a uitableview view down farther than it has data to display. Sorry if that doesn't make sense but just download the app and you will immediately want to do it too. Just wondering how they did it?

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  • Confused by notation?

    - by fuzzygoat
    Would someone be so kind as to explain what is happening with the statement below. I an a bit puzzeled by <MKAnnotation> between id and mp, it not something I have seen before. id <MKAnnotation> mp = [annotationView annotation]; many thanks gary

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  • Core Data Relationships in pre-populated SQLite database

    - by Cardinal
    Hi All, I'm new to Core Data. Currently I have following tables on hand: tbl_teahcer tbl_student tbl_course tbl_student_course_map ----------- ----------- ---------- ---------------------- teacher_id student_id course_id student_id name name name course_id teahcer_id And I'm going to make the xcdatamodel as below: Course Teacher ------ ------- name name teacher <<----------> courses students <<---| | Student | ------- | name |----->> courses My questions are as follows: As I'd like to create TableView for Cource Entity, is it a must to create the Inverse Relationship from Teacher to Course, and Student to Course? What is the beneit for having the Inverse Relationship? I got some pre-defined data on hand, and I'd like to create a SQLite storage for pre-populated source. How can I set up the relationships (both directions) in SQLite? Thank you for your help! Regards, Cardinal

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  • Drawing Mirrored Text

    - by Jeff
    I'm trying to draw mirrored (as in, it looks like you held it up to a mirror) text, and I want to do it the easiest way possible. It is possible to do a transform on a UILabel? Or do I have to use Quartz and do CGContextShowTextAtPoint() ?

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  • How do I start up an NSRunLoop, and ensure that it has an NSAutoreleasePool that gets emptied?

    - by Nick Forge
    I have a "sync" task that relies on several "sub-tasks", which include asynchronous network operations, but which all require access to a single NSManagedObjectContext. Due to the threading requirements of NSManagedObjectContexts, I need every one of these sub-tasks to execute on the same thread. Due to the amount of processing being done in some of these tasks, I need them to be on a background thread. At the moment, I'm launching a new thread by doing this in my singleton SyncEngine object's -init method: [self performSelectorInBackground:@selector(initializeSyncThread) withObject:nil]; The -initializeSyncThread method looks like this: - (void)initializeSyncThread { self.syncThread = [NSThread currentThread]; self.managedObjectContext = [(MyAppDelegate *)[UIApplication sharedApplication].delegate createManagedObjectContext]; NSRunLoop *runLoop = [NSRunLoop currentRunLoop]; [runLoop run]; } Is this the correct way to start up the NSRunLoop for this thread? Is there a better way to do it? The run loop only needs to handle 'performSelector' sources, and it (and its thread) should be around for the lifetime of the process. When it comes to setting up an NSAutoreleasePool, should I do this by using Run Loop Observers to create the autorelease pool and drain it after every run-through?

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  • Call method with parameters after animation completion

    - by Jean
    I want to call a method with certain parameters once an animation is done. The flow is something like this: -(void) myMethod:(int)val { [self performAnimation]; [self doSomethingElse:val]; // This should be done after animation completion } I presume the 'doSomethingElse' method needs to be called from the method defined in 'setAnimationDidStopSelector' - or is there a way to have the animation block until done? What is the best way to let the method called on 'setAnimationDidStopSelector' know about the method it needs to call and its parameter? Can this be done with selectors? Or is the only way of doing this by storing the methods and its params in class temp variables and access them when needed?

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  • How to dismiss the MFMailComposeViewController in cocos2d ?

    - by srikanth rongali
    I have changed my code to this way. Now mail controller is opening in landscape mode. But the problem is If I touch on cancel button or send button the mail controller is not dismissing its view. How can I do it ? -(void)goToFirstScreen:(id)sender { NSLog(@"goToFirstScreen: "); CCScene *Scene = [CCScene node]; CCLayer *Layer = [EmailScene node]; [Scene addChild:Layer]; [[CCDirector sharedDirector] setAnimationInterval:1.0/60]; [[CCDirector sharedDirector] pushScene: Scene]; } Th EmailScene class is #import "EmailScene.h" #import "testOfEnd.h" @implementation EmailScene - (id) init { self = [super init]; if (self != nil) { [self displayComposerSheet]; } return self; } -(void)displayComposerSheet { [[CCDirector sharedDirector] pause]; picker = [[MFMailComposeViewController alloc] init]; picker.mailComposeDelegate = self; [[[CCDirector sharedDirector] openGLView] addSubview:picker.view]; [[CCDirector sharedDirector] stopAnimation]; [picker presentModalViewController:picker animated:YES]; [picker release]; } - (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error { [[CCDirector sharedDirector] resume]; //dismiss view after otherwise the code is not executed [picker.view removeFromSuperview]; [[CCDirector sharedDirector] startAnimation]; [picker dismissModalViewControllerAnimated:YES]; //return to previous scene CCScene *Scene = [CCScene node]; CCLayer *Layer = [testOfEnd node]; [Scene addChild:Layer]; [[CCDirector sharedDirector] replaceScene:Scene]; } @end Thank You.

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  • UIViewTableCell didSelectRowAtIndexPath is calling but not pushing a view controller

    - by Kenneth
    Hi guys, so im having a UIViewController view with a UITableView. So the UIViewController class name is SelectionScreen. The UITableView class name is SelectionScreenTable. Picture: http://img717.imageshack.us/i/screenshot20100609atpm0.png/ I have declared a UITableView *selectionTable in SelectionScreen class and connected it to the xib file of the SelectionScreen what the problem is , is that when i click a row in the table,it stays selected as highlighted blue, it calls the didSelectRowAtIndexPath (checked with NSLog) but not pushing a new view which is called(GraphView). This is the code which i use to call the new controller WHICH WORKS with a normal button GraphView *aSelectionScreenViewController = [[GraphView alloc] initWithNibName:@"GraphView" bundle:nil]; [self presentModalViewController:aSelectionScreenViewController animated: YES]; [aSelectionScreenViewController release]; I searched around and found that I need to set a delegate for the table in the UITableView class itself on the viewload tableview.delegate = self; or self.tableview.delegate = self; But it was not working. the controller was still not being pushed, and yes i have checked the controller is not nil as i tried it with a simple button. So i was thinking whether i should set the delegate of the UITableView at the UIViewController instead, so i tried this code selectionTable.delegate = selectionTable.self; but obviously it did not work =\, it messed up the whole UITableView and caused all the cells to be its predefined settings. So does anybody have any idea on how i can get it to work.

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