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  • Load local Html file doesn't refer the js file in UIWebView

    - by Hero Vs Zero
    I am working with UIWebView project and I want to load an HTML file from a project resource. It is working fine when I run from the URL, but when I view the HTML file locally, JS files are not loaded. Loading the local HTML local file doesn't refer to js files in UIWebView. Here's my code to load the HTML file project local resource and does't refer the js file: NSString *path = [[NSBundle mainBundle] pathForResource:@"textfile" ofType:@"txt"]; NSError *error = nil; NSString *string = [[NSString alloc] initWithContentsOfFile:path encoding:NSUTF8StringEncoding error:&error]; NSString *path1 = [[NSBundle mainBundle] bundlePath]; NSURL *baseURL = [NSURL fileURLWithPath:path1]; NSLog(@"%@ >>> %@",baseURL,path); [webview loadHTMLString:string baseURL:baseURL]; This code doesn't find JS files in UIWebView, even though it loads image files from the project resource successfully.

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  • Restore and preserve UIViewController pushed from UINavigationController, no storyboard

    - by user2908112
    I try to restore a simple UIViewController that I pushed from my initial view controller. The first one is preserved, but the second one just disappear when relaunched. I don't use storyboard. I implement the protocol in every view controller and add the restorationIdentifier and restorationClass to each one of them. The second viewController inherit from a third viewController and is initialized from a xib file. I'm not sure if I need to implement the UIViewControllerRestoration to this third since I don't use it directly. My code looks like typically like this: - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization self.restorationIdentifier = @"EditNotificationViewController"; self.restorationClass = [self class]; } return self; } -(void)encodeRestorableStateWithCoder:(NSCoder *)coder { } -(void)decodeRestorableStateWithCoder:(NSCoder *)coder { } +(UIViewController *)viewControllerWithRestorationIdentifierPath:(NSArray *)identifierComponents coder:(NSCoder *)coder { EditNotificationViewController* envc = [[EditNotificationViewController alloc] initWithNibName:@"SearchFormViewController" bundle:nil]; return envc; } Should perhaps the navigationController be subclassed so it too can inherit from UIViewControllerRestoration?

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  • CoreData leak when reading a property

    - by Kamchatka
    Hello, I have the following code in a loop iterating over the different document objects: NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init]; [document primitiveValueForKey:@"data"]; [data writeToFile:filename atomically:NO]; [document.managedObjectContext refreshObject:document mergeChanges:NO]; [pool release]; The "data" property is a large blob (a 1MB image). And as I monitor the memory with the Allocation Instrument memory usage is increasing. I cannot find where the leak is coming from and how to remove it. Thanks!

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  • UITableViewRowAnimationBottom doesn't work for last row

    - by GendoIkari
    I've come across a very similar question here: Inserting row to end of table with UITableViewRowAnimationBottom doesn't animate., though no answers have been given. His code was also a little different than mine. I have an extremely simple example, built from the Navigation application template. NSMutableArray *items; - (void)viewDidLoad { [super viewDidLoad]; items = [[NSMutableArray array] retain]; self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(addItem)] autorelease]; } - (void)addItem{ [items insertObject:@"new" atIndex:0]; [self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:[NSIndexPath indexPathForRow:0 inSection:0]] withRowAnimation:UITableViewRowAnimationBottom]; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return items.count; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } cell.textLabel.text = [items objectAtIndex:indexPath.row]; return cell; } - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { if (editingStyle == UITableViewCellEditingStyleDelete) { [items removeObjectAtIndex:indexPath.row]; [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationBottom]; } } The problem is, when I either insert or delete the very last row in the table, the animation doesn't work at all; the row just appears or disappears instantly. This only happens with UITableViewRowAnimationBottom, but that's the animation that makes the most sense for creating or deleting table cells in this way. Is this a bug in Apple's framework? Or does it do this on purpose? Would it make sense to add an extra cell to the count, and then setup this cell so that it looks like it's not there at all, just to get around this behavior?

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  • cellForRowAtIndexPath not called for all sections

    - by Wynn
    I have a UITableView that has five sections. Just as the title describes cellForRowAtIndexPath is only being called for the first four. All connections have been made concerning the datasource and delegate. Also, my numberOfSectionsInTableView clearly returns 5. Printing out the number of sections from within cellForRowAtIndexPath shows the correct number, thus confirming that cellForRowAtIndexPath is simply not being called for all sections. What on earth is going on? I looked pretty hard for an answer to this question but could't find one. If this has already been answered please forgive me and point me in the correct direction. My cellForRowAtIndexPath: - (UITableViewCell *)tableView:(UITableView *)theTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [theTableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; } switch (indexPath.section) { case 0: cell.textLabel.text = ticket.description; break; case 1: cell.textLabel.text = ticket.ticketStatus; break; case 2: cell.textLabel.text = ticket.priority; break; case 3: cell.textLabel.text = ticket.customerOfficePhone; break; case 4: { //This never ever gets executed Comment *comment = [ticket.comments objectAtIndex:indexPath.row]; cell.textLabel.text = comment.commentContent; break; } } return cell; } My numberOfSectionsInTableView: - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 5; } My numberOfRowsInSection: - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { NSInteger numberOfRows; if (section == 4) { numberOfRows = [ticket.comments count]; } else { numberOfRows = 1; } return numberOfRows; } Any suggestions are appreciated. Thanks in advance.

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  • When I select any segment in segmentControll it doesnot show highlighted

    - by rathodrc
    NSArray *itemArray = [NSArray arrayWithObjects:@"one", @"Two", @"Three", nil]; segmentControl = [[UISegmentedControl alloc] initWithItems:itemArray]; segmentControl.frame = CGRectMake(5, 5, 325, 35); segmentControl.segmentedControlStyle = UISegmentedControlStyleBar; segmentControl.tintColor = [UIColor blackColor]; [self changeUISegmentFont:segmentControl]; //[self.view addSubview:segmentControl]; self.navigationItem.titleView = segmentControl; [segmentControl addTarget:self action:@selector(segmentAction:) forControlEvents:UIControlEventValueChanged]; This is my code of segment control and my problem is .. When I select any segment it does not show me that that segment is selected.. I mean it is not shown highlighted.. can Anyone tell me what the problem is??

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  • Autorelease and properties

    - by ganuke
    I have few questions to ask about the following class #import <Cocoa/Cocoa.h> @interface SomeObject { NSString *title; } @property (retain) NSString *title; @end implementation SomeObject @synthesize title; -(id)init { if (self=[super init]) { self.title=[NSString stringWithFormat:@"allyouneed"]; } return self; } -(void)testMethod{ self.title=[[NSString alloc] init] ; } -(void)dealloc { self.title=nil; [super dealloc]; } In the .h file do we need to declare the title and sub when we add the property. is it not enough to add the @property (retain) NSString *title; line. 2.Do i need to autorelease both assignment to title in the init and testMethod. if So why? Can some one explain these things to me.

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  • how to make a tableview to be grouped style without indenting cells

    - by Ying
    Hi, I want a tableview without floating headers and footers, but in the UITableViewStylePlain style. When I used a grouped style tableview, it draws this rounded rectangle around my cells, and it is annoying!! Is there a setting to turn this off? I have tried tableView.backgroundView = nil; tableView.separatorStyle = UITableViewCellSeparatorStyleNone; tableView.autoresizingMask = UIViewAutoresizingNone; All don't work. Does anyone have any idea how to do this? Thanks

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  • drawRect gets called on UIView subclass but not on UIViewController

    - by HotFudgeSunday
    My code is working so far but I had to create a Class for the UIView. This is a bit inconvenient because I need to interact with the ViewController too. BTW, I did try [self setNeedsDisplay] on the ViewDidLoad of the UIViewController subclass file but it didn't work. Here's the code, which works on UIView Subclass but doesn't get called on a UIViewController one: - (void)drawRect:(CGRect)rect { UIColor *currentColor = [UIColor redColor]; CGContextRef context = UIGraphicsGetCurrentContext(); someNum = 1; CGContextBeginPath(context); CGContextMoveToPoint(context, 30, 40); [self addDotImageX:30 andY:40]; CGContextSetLineWidth(context, 2); CGContextSetStrokeColorWithColor(context, currentColor.CGColor); CGContextStrokePath(context); } Any ideas on what to try? BTW, this is a TabBar App. I know those can somehow block the calls to drawRect. The Tabs where created programatically, not through a Nib. Eg: NSMutableArray *listOfViewControllers = [[NSMutableArray alloc] init]; UIViewController *vc; vc = [[Education alloc] init]; vc.title = @"Education"; [listOfViewControllers addObject:vc]; vc.tabBarItem.image = [UIImage imageNamed:@"info.png"]; [vc release]; I would appreciate any ideas. I've been through the answers on this site related to setNeedsDisplay not calling drawRect and haven't found an answer for my particular case. Thanks.

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  • Presenting an EKCalendarChooser modally

    - by pmb
    I'm trying to present the new EKCalendarChooser in my app as a modal view. I'm doing it using the following code: EKCalendarChooser *calendarChooser = [[EKCalendarChooser alloc] initWithSelectionStyle:EKCalendarChooserSelectionStyleMultiple displayStyle:EKCalendarChooserDisplayAllCalendars eventStore:self.ekDataSource.eventStore]; calendarChooser.showsDoneButton = YES; calendarChooser.showsCancelButton = NO; calendarChooser.modalTransitionStyle = UIModalTransitionStyleCoverVertical; calendarChooser.delegate = self; [[self navigationController] presentViewController:calendarChooser animated:YES completion:nil]; The problem I'm having is that when the view is displayed, it is missing the done button. If however, I display the view using the following code: [[self navigationController] pushViewController:calendarChooser animated:YES]; It works just fine. The done button is displayed. Shouldn't the done button be shown with the presentViewController call as well? Thanks in advance for any help! pmb

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  • UIView to Form Sheet flip animation rotation issue

    - by GSD
    I have this view to form sheet flip animation that works great in portrait mode but not in any other orientations. In my code, I use it with a UIView embedded in another UIView, which is in the root view. The animation will be rotated. Anyone has an idea why? - (void)presentModalViewControllerWithFlipAnimation:(UIViewController *)modalViewController fromView:(UIView *)fromView { UIWindow* window = [[UIApplication sharedApplication] windows][0]; _fromViewSnapshot = [[UIImageView alloc] initWithFrame:fromView.bounds]; UIGraphicsBeginImageContext(fromView.bounds.size); [fromView.layer renderInContext:UIGraphicsGetCurrentContext()]; [_fromViewSnapshot setImage:UIGraphicsGetImageFromCurrentImageContext()]; [_fromViewSnapshot sizeToFit]; UIGraphicsEndImageContext(); _fromViewSnapshot.autoresizesSubviews = YES; _fromViewSnapshot.frame = [fromView.superview convertRect:fromView.frame toView:window]; [window addSubview:_fromViewSnapshot]; fromView.hidden = YES; modalViewController.modalPresentationStyle = UIModalPresentationFormSheet; [self presentViewController:modalViewController animated:NO completion:nil]; UIView __weak *presentedView = modalViewController.view.superview; UIGraphicsBeginImageContext(presentedView.bounds.size); [presentedView.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage* modalSnapshot = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); UIView __weak *presentationSuperview = presentedView.superview; [presentedView removeFromSuperview]; UIImageView* presentationSnapshotView = [[UIImageView alloc] initWithImage:modalSnapshot]; presentationSnapshotView.autoresizingMask = UIViewAutoresizingNone; [_fromViewSnapshot.superview bringSubviewToFront:_fromViewSnapshot]; [UIView animateWithDuration:kFlipAnimationScaleSpeed delay:0 options:UIViewAnimationOptionCurveEaseIn|UIViewAnimationOptionBeginFromCurrentState animations: ^{ [UIView animateWithDuration:kFlipAnimationScaleSpeed delay:0 options:UIViewAnimationOptionBeginFromCurrentState animations: ^{ _fromViewSnapshot.frame = [_fromViewSnapshot.superview convertRect:presentedView.frame fromView:presentationSuperview]; } completion:nil]; } completion:^(BOOL finished) { [UIView setAnimationBeginsFromCurrentState:YES]; [UIView transitionWithView:_fromViewSnapshot duration:kFlipAnimationSpeed options:UIViewAnimationOptionCurveEaseIn|UIViewAnimationOptionTransitionFlipFromRight animations: ^{ presentationSnapshotView.frame = _fromViewSnapshot.bounds; [_fromViewSnapshot addSubview:presentationSnapshotView]; } completion:^(BOOL finished) { [presentationSuperview addSubview:presentedView]; [presentationSnapshotView removeFromSuperview]; [_fromViewSnapshot removeFromSuperview]; }]; }]; } - (void)dismissViewControllerWithFlipAnimation:(UIView*)fromView completion:(void (^)(void))completion { UIWindow* window = [[UIApplication sharedApplication] windows][0]; UIView __weak *presentedView = self.presentedViewController.view.superview; UIGraphicsBeginImageContext(presentedView.bounds.size); [presentedView.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage* modalSnapshot = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); [presentedView removeFromSuperview]; UIImageView* presentationSnapshotView = [[UIImageView alloc] initWithImage:modalSnapshot]; presentationSnapshotView.autoresizingMask = UIViewAutoresizingNone; presentationSnapshotView.frame = presentedView.frame; [window addSubview:presentationSnapshotView]; [UIView animateWithDuration:kFlipAnimationScaleSpeed delay:0 options:UIViewAnimationOptionCurveEaseIn|UIViewAnimationOptionBeginFromCurrentState animations: ^{ [UIView animateWithDuration:kFlipAnimationScaleSpeed delay:0 options:UIViewAnimationOptionBeginFromCurrentState animations: ^{ presentationSnapshotView.frame = [fromView.superview convertRect:fromView.frame toView:window]; } completion:nil]; } completion:^(BOOL finished) { [UIView setAnimationBeginsFromCurrentState:YES]; [UIView transitionWithView:presentationSnapshotView duration:kFlipAnimationSpeed options:UIViewAnimationOptionCurveEaseIn|UIViewAnimationOptionTransitionFlipFromLeft animations: ^{ _fromViewSnapshot.frame = presentationSnapshotView.bounds; [presentationSnapshotView setImage:[(UIImageView*)_fromViewSnapshot image]]; [self dismissViewControllerAnimated:NO completion:nil]; } completion:^(BOOL finished) { [presentationSnapshotView removeFromSuperview]; _fromViewSnapshot = nil; completion(); }]; }]; }

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  • Errors in UILabel

    - by Todd Davies
    I'm trying to use the FXlabel when following this (Adding a gradient label section) tutorial. This is some of the code inside my viewDidLoad method: self.logoLabel = [[FXLabel alloc] initWithFrame:CGRectMake(14, 11, 280, 87)]; [logoLabel setFont:[UIFont boldSystemFontOfSize:45]]; [logoLabel setTextColor:[UIColor whiteColor]]; [logoLabel setShadowColor:[UIColor blackColor]]; [logoLabel setShadowOffset:CGSizeMake(0, 2)]; [logoLabel setTextAlignment:UITextAlignmentCenter]; [logoLabel setBackgroundColor:[UIColor clearColor]]; [logoLabel setText:@"Attorney Biz"]; [logoLabel setGradientStartColor:[UIColor colorWithRed:163.0/255 green:203.0/255 blue:222.0/255 alpha:1.0]]; [logoLabel setGradientEndColor:[UIColor whiteColor]]; Unfortnuately, I get an error "No visible @interface for 'UILabel' declares the selector 'setGradientStartColor'" at the second-to-last line and "No visible @interface for 'UILabel' declares the selector 'setGradientEndColor'" Can somebody explain how to remove these errors?

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  • Using resources with the same name in Xcode

    - by Roberto
    Is there a way to add multiple resources with the same name to an Xcode project and have 1 of them take priority over the others? Example: I added 2 files, both called icon.png, to an Xcode project. They are on different folders in the file system (Folder1/icon.png and Folder2/icon.png) and on different groups in Xcode. Is there a way to tell Xcode to have Folder2/icon.png take priority over Folder1/icon.png? And if only 1 icon.png exists, then use that one. Thanks. EDIT (2010-12-23): You can have multiple files with the same name in an Xcode project even if they are not in separate folder references, but they are in separate groups. Once compiled, the app bundle (which will be flat with no folders in it), will only have one copy of the file (icon.png). How do you pick which copy of the file to use? I was told that you can do this for BlackBerry. It works something like this: The compiler will go down the list of files in the project and start adding them to the app bundle. If it sees a duplicate, it will overwrite it (or not), so the files at the bottom (or at the top) will have higher precedence and will be the final bundle.

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  • Minimum and maximum Date in date Picker in iphone

    - by Iphony
    I want to get minimum and maximum date from date picker but minimum date should be "- 18" of current date and maximum date should be "- 100" of current date. Suppose current year is 2018 then I want minimum date 2000 and maximum date 1918. what I have done so far is : NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; NSDateComponents *components = [gregorian components:NSYearCalendarUnit fromDate:[NSDate date]]; NSInteger year = [components year]; int mindt = year - 18; int maxdt = year -100; // NSDate * MinDate = [components year] - 18; // NSDate * MaxDate = [components year] - 100; // self.datePicker.minimumDate = MinDate; // self.datePicker.maximumDate = MaxDate; but I cant get this integer to my date formate.. pls suggest any way ...

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  • Slide through view controllers but not with the UISwipeGestureRecognizer

    - by JoeyT
    Here is my issue, i got 5 view controllers and i can switch between them trough swipe with the UISwipeGestureRecognizer class and xcode's storyboard. So this works, but, i dont like the slide effect. I like to make it in a way so you can exactly slide the view to another by dragging it. For example, like this slider in JS: http://dimsemenov.com/plugins/royal-slider/ Can anyone send me in the right direction? I searched on the internet but i cant find any functions or tutorial on how to do this. Thanks in advance! Edit: Im not looking the scroll view. Because this will result in some white spaces when i have 3 slides vertical for slide 1 and 5 slides vertical for slide 2. Hope u guys can follow me! Edit: This is what i try to accomplish. **

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  • not saving when using setDidReceiveDataSelector

    - by coder4xc
    i want to download a file and show the progress bar i was able to do this. now , i want to show the progress value in a label and use this code to progress init and update label : [queue setDelegate:self]; [queue setRequestDidFinishSelector:@selector(updateLabel)]; [queue setDownloadProgressDelegate:progress]; [queue setShowAccurateProgress:YES]; ASIHTTPRequest *request; request = [ASIHTTPRequest requestWithURL:url]; [request setDelegate:self]; [request setTemporaryFileDownloadPath:[filePath stringByAppendingString:@".download"]]; [request setAllowResumeForFileDownloads:YES]; [request setDidFinishSelector:@selector(updateLabel)]; [request setDidReceiveDataSelector:@selector(updateLabel)]; [request setShouldContinueWhenAppEntersBackground:YES]; [request setShouldAttemptPersistentConnection:NO]; [request setDownloadDestinationPath:filePath]; [queue addOperation:request]; [queue go]; but not save in the destination path ! and when i clear this code :  [request setDidReceiveDataSelector:@selector(updateLabel)]; saving done ! what is problem ? i want to update label text when progress value changed

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  • fetchBatchSize to be same as fetchLimit

    - by user1730622
    What does it mean to have fetchBatchSize to be the same as fetchLimit, say both are set to be 5. My understanding is that, with the fetchLimit, then only 5 records will be in the fetch result set; and additionally with the fetchBatchSize, only the ids/identities of the records will be read to the memory, and then the full records won't be retrieved until they are accessed. Is that a correct understanding?

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  • UIImageView and UIScrollView load lot of pictures

    - by Allan.Chen
    In my app, i use UIImageView and UIScrollView to show lot of pictures(Every time there are about 20 pictures and every pictures about 600px*500px and size is about 600KB ), i use for this code to do this function. Here is code: //Here is pictures Data; self.klpArry = self.pictureData; CGSize size = self.klpScrollView1.frame.size; for (int i=0; i < [klpArr count]; i++) { UIImageView *iv = [[UIImageView alloc] initWithFrame:CGRectMake((size.width * i)+300, 20, 546, 546)]; NSString *filePath = [[NSBundle mainBundle] pathForResource:[klpArr objectAtIndex:i] ofType:@"jpg"]; UIImage *imageData = [[UIImage alloc]initWithData:[NSData dataWithContentsOfFile:filePath]]; [iv setImage:imageData]; iv.backgroundColor = [UIColor grayColor]; [self.klpScrollView1 addSubview:iv]; imageData = nil; iv = nil; iv.image = nil; filePath = nil; [imageData release]; [filePath release]; [iv release]; } // show the picture in scrollview; [self.klpScrollView1 setContentSize:CGSizeMake(size.width * numImage, size.height)]; self.klpScrollView1.pagingEnabled = YES; self.klpScrollView1.showsHorizontalScrollIndicator = NO; self.klpScrollView1.backgroundColor = [UIColor grayColor]; But everytime i init this function, the memory will increase about 5MB, Actually i release UIImageView, UIimage and UIScrollView (vi.image=nil,[vi release]) but i doesn't work, it can't release the memory. BTW, i use my friend code first vi.image=nil then vi=nil; but the pictures not to show on scrollview. any one can help me ?? Thx ~~

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  • Refreshing a MKMapView when the user location is updated or using default values

    - by koichirose
    I'm trying to refresh my map view and load new data from the server when the device acquires the user location. Here's what I'm doing: - (void)viewDidLoad { CGRect bounds = self.view.bounds; mapView = [[MKMapView alloc] initWithFrame:bounds]; mapView.showsUserLocation=YES; mapView.delegate=self; [self.view insertSubview:mapView atIndex:0]; [self refreshMap]; } - (void)mapView:(MKMapView *)theMapView didUpdateUserLocation:(MKUserLocation *)userLocation { //this is to avoid frequent updates, I just need one position and don't need to continuously track the user's location if (userLocation.location.horizontalAccuracy > self.myUserLocation.location.horizontalAccuracy) { self.myUserLocation = userLocation; CLLocationCoordinate2D centerCoord = { userLocation.location.coordinate.latitude, userLocation.location.coordinate.longitude }; [theMapView setCenterCoordinate:centerCoord zoomLevel:10 animated:YES]; [self refreshMap]; } } - (void)refreshMap { [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES]; [self.mapView removeAnnotations:self.mapView.annotations]; //default position NSString *lat = @"45.464161"; NSString *lon = @"9.190336"; if (self.myUserLocation != nil) { lat = [[NSNumber numberWithDouble:myUserLocation.coordinate.latitude] stringValue]; lon = [[NSNumber numberWithDouble:myUserLocation.coordinate.longitude] stringValue]; } NSString *url = [[NSString alloc] initWithFormat:@"http://myserver/geo_search.json?lat=%@&lon=%@", lat, lon]; NSURLRequest *theRequest=[NSURLRequest requestWithURL:[NSURL URLWithString:url] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; [[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; [url release]; [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO]; } I also have a - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data, to create and add the annotations. Here's what happens: sometimes I get the location after a while, so I already loaded data close to the default location. Then I get the location and it should remove the old annotations and add the new ones, instead I keep seeing the old annotations and the new ones are added anyway (let's say I receive 10 annotations each time, so it means that I have 20 on my map when I should have 10). What am I doing wrong?

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  • ivar is inside two blocks

    - by Desperate Developer
    I have an ivar like this declared on interface: BOOL controllerOK; I have to use this ivar inside a block that resides itself in a block. Something like myBlockl = ^(){ [self presentViewController:controller animated:YES completion:^(){ if (controllerOK) [self doStuff]; }]; }; If I try to do that, I see an error capturing self strongly in this block is likely to lead to a retain cycle for the if (controllerOK) line. This does not appear to be one of those blocks problems that you create another variable using __unsafe_unretained before the block starts. First because this instruction cannot be used with a BOOL and second because the ivar controllerOK has to be tested on runtime inside the block. Another problem is that the block itself is declared on the interface, so it will be used outside the context where it is being created. How do I solve that?

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  • Show and Fade UIImageView after 2 Seconds

    - by user1536432
    I am working on a notification system in my iPhone game and want an image to pop up on the screen and automatically fade after 2 seconds. User clicks a button that calls the method "popupImage" An image appears on the screen in a designated spot, it doesn't need to fade in The image fades out by itself after being on the screen for 2 seconds. Is there any way of doing this? Thanks ahead of time.

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  • Search pattern in string using regex in obj-c

    - by manileo86
    I'm working on a string pattern match algorithm. I use NSRegularExpression for finding the matches. For ex: I've to find all words starting with '#' in a string.. Currently I use the following regex function: static NSRegularExpression *_searchTagRegularExpression; static inline NSRegularExpression * SearchTagRegularExpression() { if (!_searchTagRegularExpression) { _searchTagRegularExpression = [[NSRegularExpression alloc] initWithPattern:@"(?<!\\w)#([\\w\\._-]+)? options:NSRegularExpressionCaseInsensitive error:nil]; } return _searchTagRegularExpression; } and I use it as below: NSRegularExpression *regexp = SearchTagRegularExpression(); [regexp enumerateMatchesInString:searchString options:0 range:stringRange usingBlock:^(NSTextCheckingResult *result, NSMatchingFlags flags, BOOL *stop) { // comes here for every match with range }]; This works properly. But i just want to know if this is the best way. suggest if there's any better alternative...

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  • iPhone memory management (with specific examples/questions)

    - by donkim
    Hey all. I know this question's been asked but I still don't have a clear picture of memory management in Objective-C. I feel like I have a pretty good grasp of it, but I'd still like some correct answers for the following code. I have a series of examples that I'd love for someone(s) to clarify. Setting a value for an instance variable. Say I have an NSMutableArray variable. In my class, when I initialize it, do I need to call a retain on it? Do I do fooArray = [[[NSMutableArray alloc] init] retain]; or fooArray = [[NSMutableArray alloc] init]; Does doing [[NSMutableArray alloc] init] already set the retain count to 1, so I wouldn't need to call retain on it? On the other hand, if I called a method that I know returns an autoreleased object, I would for sure have to call retain on it, right? Like so: fooString = [[NSString stringWithFormat:@"%d items", someInt] retain]; Properties. I ask about the retain because I'm a bit confused about how @property's automatic setter works. If I had set fooArray to be a @property with retain set, Objective-C will automatically create the following setter, right? - (void)setFooArray:(NSMutableArray *)anArray { [fooArray release]; fooArray = [anArray retain]; } So, if I had code like this: self.fooArray = [[NSMutableArray alloc] init]; (which I believe is valid code), Objective-C creates a setter method that calls retain on the value assigned to fooArray. In this case, will the retain count actually be 2? Correct way of setting a value of a property. I know there are questions on this and (possibly) debates, but which is the right way to set a @property? This? self.fooArray = [[NSMutableArray alloc] init]; Or this? NSMutableArray *anArray = [[NSMutableArray alloc] init]; self.fooArray = anArray; [anArray release]; I'd love to get some clarification on these examples. Thanks!

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  • Creating UIButton using helper method

    - by ddawber
    I have a subclass of UITableView and in it I want to generate number of labels that share the same properties (font, textColor, backgroundColor, etc.). I decided the easiest way to achieve this would be to create a helper method which creates the label with some common properties set: - (UILabel *)defaultLabelWithFrame:(CGRect)frame { UILabel *label = [[UILabel alloc] initWithFrame:frame]; label.font = [UIFont fontWithName:@"Helvetica" size:14]; label.textColor = [UIColor colorWithWhite:128.0/255.0 alpha:1.0]; label.backgroundColor = [UIColor clearColor]; return label; } I use the method like this: UILabel *someLabel = [self defaultLabelWithFrame:CGRectMake(0,0,100,100)]; [self addSubview:someLabel]; [someLabel release]; My concern here is that when creating the label in the method it is retained, but when I then assign it to someLabel, it is retained again and I have no way of releasing the memory when created in the method. What would be best the best approach here? I fee like I have two options: Create a subclass of UILabel for the default label type. Create an NSMutableArray called defaultLabels and store the labels in this: - (UILabel *)defaultLabelWithFrame:(CGRect)frame { UILabel *label = [[UILabel alloc] initWithFrame:frame]; label.font = [UIFont fontWithName:@"Helvetica" size:14]; label.textColor = [UIColor colorWithWhite:128.0/255.0 alpha:1.0]; label.backgroundColor = [UIColor clearColor]; [defaultLabels addObject:label]; [labels release]; //I can release here return [defaultLabels lastObject]; //I can release defaultLabels when done } I appreciate your thoughts. Cheers.

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  • popViewControllerAnimated doesn't update info iPhone SDK

    - by WrightsCS
    When I try to pop a view controller, it doesnt update info for the previous view. Example: I have a cell that displays text in a label in View1. When you click on the cell it goes to View2 (for example) When I choose an option in View2, popViewControllerAnimated is used to go back to View1, however, I want the label to now be updated with the new option in View1. My dilemma is that when I pop View2, the label in View1 does not update. Any ideas? I've tried adding a [view1 reloadData]; before the view pops, but no luck. //VIEW1 the cell that displays the label. ringLabel = [[UILabel alloc] initWithFrame: CGRectMake(25, 12.7f, 250, 20)]; ringLabel.adjustsFontSizeToFitWidth = YES; ringLabel.textColor = [UIColor blackColor]; ringLabel.font = [UIFont systemFontOfSize:17.0]; ringLabel.backgroundColor = [UIColor clearColor]; ringLabel.textAlignment = UITextAlignmentLeft; ringLabel.tag = 0; ringLabel.text = [plistDict objectForKey:@"MYOPTION"]; [ringLabel setEnabled:YES]; [cell addSubview: ringLabel]; [ringLabel release]; //VIEW2 when cell clicked CustomProfileViewController *cpvc = [CustomProfileViewController alloc]; cpvc.ringtone = [ringList objectAtIndex:indexPath.row]; [cpvc.tblCustomTable reloadData]; [self.navigationController popViewControllerAnimated:YES];

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