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  • UIScrollView Custom View rotation problem

    - by Markus
    I have a ScrollView with a Custom View. Now i have the problem with the rotation, the view has after the rotation not the correct frame pos / size. How can i call the CustomView after rotation for a reposition and resize the frame and content?! - (void)setupPage { NSUInteger nimages = 0; CGFloat cx = 0; for (; ; nimages++) { if (nimages == list.count) { break; } CustomStepView *stepView = [[CustomStepView alloc] initWithFrame:CGRectZero]; stepView.tag = nimages; if([[UIDevice currentDevice] orientation] == UIDeviceOrientationPortrait || [[UIDevice currentDevice] orientation] == UIDeviceOrientationPortraitUpsideDown) { stepView.frame = CGRectMake(cx, 0.0 , 768.0f, 926.0f); cx += 768.0; } else { stepView.frame = CGRectMake(cx, 0.0 , 1024.0f, 670.0f); cx += 1024.0; } [scrollView addSubview:stepView]; [stepView release]; } self.pageControl.numberOfPages = nimages; }

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  • GameKit server disconnect makes session invalid

    - by Markus
    Hi everyone, I'm trying to build a 4 player multiplayer game using GameKit. I tried many things and I'm currently using client/server mode, meaning that I have 1 session in GKSessionModeServer and 3 other sessions connecting to this one in GKSessionModeClient. My goal is, that when a user leaves the game or gets disconnected for whatever reason, that the others can continue their game. So far this works if any of the Clients leave the game, but if the Sevrer leaves the game, send and receive calls are not reaching the other peers anymore. I tried the same with 4 peers in GKSessionModePeer with the same result (where the player who accepts connections cannot quit). Does anyone had better success in making this work? Any help is highly appreciated. Thanks!

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  • UIWebView comparing current and defined URL's with a loop depending on result

    - by Syleron
    I am trying to compare the current url in webView with a defined url say google.com so in theory.. NSURLRequest *currentRequest = [webView request]; NSURL *currentURL = [currentRequest URL]; would give us our current url... NSString *newurl = @"http://www.google.com"; this would give us the compared to defined url while (!currentURL == newurl) { //do whatever here because currentURL does not equal the newurl } This does not seem to work though.. solutions?

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  • iPhone animated banner : which framework to use

    - by Julien
    Hi folks, I'm willing to create a little frame to display animated ads in my app. It could be simple little animations, or "3D" transition between ads, or combination of both. I'm not familiar with graphic frameworks, I just used CoreGraphics, which I think is not optimized for that. I thought of OpenGL, but maybe that's too much and takes too much ressources just for this little thing. What do you think ?

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  • UISwitch text not showing on device

    - by iFloh
    Hi, I have a screen with several UISwitch controls. On my iPhone simulator this screen works correctly and The Switch text shows as On/Off. Different on my testing device (iPod Touch). Here the text seems to get lost and I only get "1" (instead of "On") and "0" (instead of "Off"). I don't know where the iPod Touch is different and why it's not showing correctly. Anyone had a similar experience? Is this a bug? Cheers

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  • NavigationController does not set view properties correctly when pushed

    - by Sheehan Alam
    I have a UITabBarControllerDelegate that pushes a new view controller when a certain tab is pressed: - (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController { MyView* myView = [[[MyView alloc] initWithNibName:@"MyView" bundle:nil]autorelease]; if([self.tabBarController.selectedViewController.title isEqualToString:@"Friends"]){ NSLog(@"Clicked Friends"); myView.reloadFriends = TRUE; [self.navigationController myView animated:YES]; } } However, if I change my code to set the tabbar's selected view controller to myView everything works, but I don't get my navigation bar: if([self.tabBarController.selectedViewController.title isEqualToString:@"Friends"]){ NSLog(@"Clicked Friends"); myView.reloadFriends = TRUE; self.tabBarController.selectedViewController = myView; } How can I set the reloadFriends property in MyView and have the navigation bar at the top?

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  • FBConnect Demo Application

    - by gmcalab
    I am running the demo application that is supplied with the facebook-ios-sdk. The application starts in the emulator, with a LogIn button. I click the button which then launches safari to grant access to the application. I log in with my fb creds and allow the application. I am the administrator for the application and I have verified I put in the right app key. After I allow access, it says "Safari cannot open the page because the address in invalid"...this is the url it's trying to go to: http://www.facebook.com/connect/uiserver.php... So am I missing something because the breakpoint for (void)fbDidLogin never gets hit...

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  • Trying to trigger php script, get EXC_BAD_ACCESS iPhone development

    - by Brennan Kastner
    This below is my code, when it gets to the end of the function, the debugger throws an EXC_BAD_ACCESS error and when I check the website's logs, the url was never visited. If anyone could help me fix this issue, it would be greatly appreciated: -(IBAction)submitEmail:(id)sender { NSString *urlStringRaw = [[NSString alloc] init]; urlStringRaw = [NSString stringWithFormat:@"http://vedev.org/AnonMail/sendEmail.php?from=%@&to=%@&subject=%@&body=%@", from.text, to.text, subject.text, bodyContent.text]; NSString *urlString = [urlStringRaw stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; [urlStringRaw release]; NSURL * url = [NSURL URLWithString:urlString]; [urlString release]; NSURLRequest *requestObj = [NSURLRequest requestWithURL:url]; [url release]; NSURLConnection *connection = [NSURLConnection connectionWithRequest:requestObj delegate:nil]; [connection release]; [requestObj release]; }

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  • iPhone - Create non-persistent entities in core data

    - by ncohen
    Hi everyone, I would like to use entity objects but not store them... I read that I could create them like this: myElement = (Element *)[NSEntityDescription insertNewObjectForEntityForName:@"Element" inManagedObjectContext:managedObjectContext]; And right after that remove them: [managedObjectContext deleteObject:myElement]; then I can use my elements: myElement.property1 = @"Hello"; This works pretty well even though I think this is probably not the most optimal way to do it... Then I try to use it in my UITableView... the problem is that the object get released after the initialization. My table becomes empty when I move it! Thanks edit: I've also tried to copy the element ([myElement copy]) but I get an error...

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  • How to disable the delete button for the particular row when we are using the table view delegate me

    - by monish
    Hi guys, Here I need a help from ur side that Im using the tableview delegate method commitEditing sytle to get the delete button for every cell when we swipe.But my problem here is I dont want the delete button for the first row in the tableview and swipe should not work and I dnt have any idea how to implemet this. Anyone's help will be much appreciated. Thank You, Monish.

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  • Comparing floats in their bit representations

    - by sczizzo
    Say I want a function that takes two floats (x and y), and I want to compare them using not their float representation but rather their bitwise representation as a 32-bit unsigned int. That is, a number like -495.5 has bit representation 0b11000011111001011100000000000000 or 0xC3E5C000 as a float, and I have an unsigned int with the same bit representation (corresponding to a decimal value 3286614016, which I don't care about). Is there any easy way for me to perform an operation like <= on these floats using only the information contained in their respective unsigned int counterparts?

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  • Poping multiple levels in UITableViewController

    - by LavaSlider
    I would like to be able to pop multiple views from a UITableViewController stack. For example in the Apple DrillDownSave example, when viewing Level 3 to go back to Level 1 or when viewing an Item to go back to Level 2 when a button is pushed. I tried: [self.navigationController.parentViewController.navigationController popViewControllerAnimated: NO]; [self.navigationController popViewControllerAnimated: NO]; and [self.navigationController popViewControllerAnimated: NO]; [self.navigationController.parentViewController.navigationController popViewControllerAnimated: NO]; but these leave me the same place as just a single popViewControllerAnimated:. Is there an easy way to do this?

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  • Warning: control reaches end of non-valid function - iPhone

    - by Dave
    I keep getting 'warning: control reaches end of non-void function' with this code: - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { if (section ==0) { return [comparativeList count]; } if (section==1) { return [generalList count]; } if (section==2) { return [contactList count]; How can I get rid of this warning? Thanks.

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  • How to find why NSMutableData is invalid

    - by 4thSpace
    I access a RESTFUL url and get back results. The results are in JSON. I turn the response into a string via: - (void)connectionDidFinishLoading:(NSURLConnection *)connection { NSString *json = [[NSString alloc] initWithBytes:[self.receivedData mutableBytes] length:[self.receivedData length] encoding:NSUTF8StringEncoding]; The json variable has a value of 0x0. When I mouse over it, I see <Invalid CFStringRef. How can I debug this to tell why it is invalid? I render the JSON given back through the browser in A JSON parser. That checks out fine. Results are given back by entering an ID in the URL. Other IDs return results without issue. The result set is fairly large.

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  • How to get the Zoom Levels and Lat and Long values of the Map when Zoom in/out.

    - by ChandraSekhar
    I am implement an application based on the MapKit using iphone sdk.I just now a method to get the event when we drag, zoom in/out on the map. The method is as like this (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated Now I need to get the following bullets. 1.TopLeft's and Bottom Right's Latitude and longitude values. 2.Center of the Map. 3.zoom level. Please give me suggessions to solve the above 3 use cases. Thanks in Advance, Sekhar Bethalam.

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  • Usage of autorelease pools for fetch method

    - by Matthias
    Hi, I'm a little bit confused regarding the autorelease pools when programming for the iPhone. I've read a lot and the oppionions seem to me from "Do-NOT-use" to "No problem to use". My specific problem is, I would like to have a class which encapsulates the SQLite3 Access, so I have for example the following method: -(User*)fetchUserWithId:(NSInteger)userId Now, within this method a SQL query is done and a new user object is created with the data from the database and then returned. Within this DB Access class I don't need this object anymore, so I can do a release, but since the calling method needs it, I would do an autorelease, wouldn't I? So, is it okay to use autorelease here oder would it gain too much memory, if this method is called quite frequently? Some websites say, that the autorelease pool is released first at the end of the application, some say, at every event (e.g. user touches something). If I should not use autorelease, how can I make sure, that the object is released correctly? Can I do a release in the fetch method and hope, that the object is still there until the calling method can do a retain? Thanks for your help! Regards Matthias

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  • Application Design in Interface Builder Challenge

    - by Sheehan Alam
    I want to design an app that launches other sub-apps. Main View will contain 4 buttons. Clicking on each button respectively will launch the other sub-apps. Each sub-app will have a UITabBarController which has its own different views. At any point I want the user to be able to go back to the Main View from any of the sub-apps. I am not sure how to design this in IB.

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  • EXC_MEMORY_ACCESS when trying to delete from Core Data ($cash solution)

    - by llloydxmas
    I have an application that downloads an xml file, parses the file, and creates core data objects while doing so. In the parse code I have a function called 'emptydatacontext' that removes all items from Core Data before creating replacements items from the xml data. This method looks like this: -(void) emptyDataContext { NSFetchRequest * allCon = [[NSFetchRequest alloc] init]; [allCon setEntity:[NSEntityDescription entityForName:@"Condition" inManagedObjectContext:managedObjectContext]]; NSError * error = nil; NSArray * conditions = [managedObjectContext executeFetchRequest:allCon error:&error]; DebugLog(@"ERROR: %@",error); DebugLog(@"RETRIEVED: %@", conditions); [allCon release]; for (NSManagedObject * condition in conditions) { [managedObjectContext deleteObject:condition]; } // Update the data model effectivly removing the objects we removed above. //NSError *error; if (![managedObjectContext save:&error]) { DebugLog(@"%@", [error domain]); } } The first time this runs it deletes all objects and functions as it should - creating new objects from the xml file. I created a 'update' button that starts the exact same process of retrieving the file the proceeding with the parse & build. All is well until its time to delete the core data objects. This 'deleteObject' call creates a "EXC_BAD_ACCESS" error each time. This only happens on the second time through. Captured errors return null. If I log the 'conditions' array I get a list of NSManagedObjects on the first run. On the second this log request causes a crash exactly as the deleteObject call does. I have a feeling it is something very simple I'm missing or not doing correctly to cause this behavior. The data works great on my tableviews - its only when trying to update I get the crashes. I have spent days & days on this trying numerous alternative methods. Whats left of my hair is falling out. I'd be willing to ante up some cash for anyone willing to look at my code and see what I'm doing wrong. Just need to get past this hurdle. Thanks in advance for the help!

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  • NSOperationqueue i want to block main thread

    - by alexeyndru
    i want to block the main thread until something else is done in the background. i used: result=[self performSelectorInBackground:@selector(calculate:) withObject:expression]; just bellow this line I am using result: [self use:result]; i dont want to use result until it is available. to achieve this I implemented calculate: { [[(AppDelegate *)[[UIApplication sharedApplication] delegate] queue] waitUntilAllOperationsAreFinished]; calculating result... } and still, the result is used before it is calculated. so, i didnt block the main thread. pls help me do that. thanks

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  • Show image from url in uiimageview

    - by skiria
    I try to show a image in my iphone app but it doesn't show. I connect in IB and I check to show a local image, it workd good. I also check the url from image and it is ok. I use the next code: NSURL *imageURL = [NSURL URLWithString: aVideo.urlThumbnail]; NSData *imageData = [NSData dataWithContentsOfURL:imageURL]; UIImage *image = [UIImage imageWithData:imageData]; imageView.image = image; and //Video.h NSString *urlThumbnail; and this is my code on the view. - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; [tableView reloadData]; } - (void)viewDidLoad { [super viewDidLoad]; NSURL *imageURL = [NSURL URLWithString: aVideo.urlThumbnail]; NSData *imageData = [NSData dataWithContentsOfURL:imageURL]; UIImage *image = [UIImage imageWithData:imageData]; imageView.image = image; }

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  • How do I convert a NSString into TIS-620 encoded string

    - by MacPC
    In the apple document, I can see that there's a way to convert from UTF8 string to ASCII string like this NSData *asciiData = [theString dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; NSString *asciiString = [[NSString alloc] initWithData:asciiData encoding:NSASCIIStringEncoding]; But my app requires a TIS-620 string to post to a site so I try to do the same thing NSData *asciiData = [newPost.header dataUsingEncoding:kCFStringEncodingMacThai allowLossyConversion:YES]; NSString *asciiString = [[NSString alloc] initWithData:asciiData encoding:kCFStringEncodingMacThai]; NSLog(@"%@", asciiString); The output I got is like this ???????????. Does anyone know how to convert the NSString to TIS-620 properly? Thanks so much.

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  • className method?

    - by fuzzygoat
    I have just been watching the Stanford iPhone lecture online from Jan 2010 and I noticed that the guy from Apple keeps referring to getting an objects class name using "className" e.g. NSArray *myArray = [NSArray arrayWithObjects:@"ONE", @"TWO", nil]; NSLog(@"I am an %@ and have %d items", [myArray className], [myArray count]); However, I can't get this to work, the closest I can come up with it to use class, is className wrong, did it get removed, just curious? NSArray *myArray = [NSArray arrayWithObjects:@"ONE", @"TWO", nil]; NSLog(@"I am an %@ and have %d items", [myArray class], [myArray count]); Gary

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  • Using NSPredicate to filter on both Core attribute and entity

    - by Ben Thompson
    I have two entities in core data (call them entityOne and entityTwo). I have a entityOne<---entityTwo relationship between them. I am now trying to code an NSPredicate to fetch entityTwo objects on the following basis: Fetch entityTwo objects that have a relationship with a specified entityOne object. Filter out those entityTwo objects which have no value for one of their attributes. I am best doing both of these in an NSPredicate or is there a better way? I am trying the following: NSPredicate *predicate = [NSPredicate predicateWithFormat:@"(attribute <> "") AND (relationship == entityOne"]; [request setPredicate:predicate]; Any pointers on coding great fully received.

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