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  • UISearchDisplayController changing row height

    - by tewha
    I've set my UITableView row height to in Interface Builder to 54.0. I have a UISearchDisplayController on that view. When the user taps the search bar in it, the table resizes properly. However, when they start typing (and actually doing the search) the row height decreases. It stays wrong until the search taps Cancel. I could find no documentation on this behavior on Apple's site. I've tried setting the row height in UISearchDisplayDelegate delegate calls. This might be the right approach, but I don't know the details and couldn't get it ti work. I've also tried implementing -- (CGFloat)tableView:(UITableView *)tableView -heightForRowAtIndexPath:(NSIndexPath *)indexPath;. This worked, but I have thousands of entries in this list and can't take the performance hit. What's the right way to fix this?

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  • How to unset delegate on UIView setAnimationDelegate: call?

    - by morticae
    I am receiving crash reports that appear to be from a UIView animation calling a delegate that has been dealloced. Thread 0 Crashed: 0 libobjc.A.dylib 0x334776f6 objc_msgSend + 18 1 UIKit 0x31c566c4 -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] 2 UIKit 0x31c565d2 -[UIViewAnimationState animationDidStop:finished:] 3 QuartzCore 0x30045a26 run_animation_callbacks I am setting the current view controller as the delegate for animations using the following pattern: [UIView beginAnimations:nil context:NULL]; [UIView setAnimationBeginsFromCurrentState:YES]; [UIView setAnimationDuration:0.5]; [UIView setAnimationDelegate:self]; ... [UIView commitAnimations]; My question is, how do I set that delegate reference to nil in my dealloc method? Is there some way to retain a reference to an animation? Or fetch animations in progress?

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  • Need to Release UIWebView Delegate?

    - by Chris
    I have a UIWebView named wView. I want to use webViewDidFinishLoad: in my class, so I am setting the class as the delegate for wView by using this line: wView.delegate = self; Everything loads properly, but when I close the UIWebView, the App crashes. If I comment out the wView.delegate = self, it works and does not crash, but then I can't use webViewDidFinishLoad: - any ideas? Do I need to release something?

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  • Adding a UIBarButtonItem to a programattically allocated UINavigationBar

    - by iamdadude
    I have a cameraoverlayview that allocates a UINavigationBar to the top of the screen like this - CGRect navbarFrame = CGRectMake(0, 0, 320, 44); navigationBar = [[UINavigationBar alloc] initWithFrame:navbarFrame]; navigationBar.delegate = self; Now I want to add a UIBarButtonItem as the left button to the navigation bar, but the standard navigationbar.leftitem doesn't work. So I tried doing this - closebutton = [[UIBarButtonItem alloc] initWithTitle:closebuttontext style:UIBarButtonItemStylePlain target:self action:@selector(close)]; navigationBar.topItem.leftBarButtonItem = closebutton; But it doesn't work either. Can anyone point me in the right direction? As far as the navigation bar loading up correctly in the cameraoverlayview, it works 100%.

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  • NSURLConnection request seems to disappear into thin air

    - by ibergmark
    Hi Everybody! I'm having trouble with a NSURLConnection request. My app calls a routine called sayHello to identify a user's device. This code works fine for all devices I've tested it on, but for some devices the request just seems to disappear into thin air with no errors or popups on the device. One specific device that fails is an iPod Touch 2G running OS 3.1.3. The app start's fine and doesn't crash, and none of my error popup messages are displayed. I just can't understand why my server never receives the request since the call to initWithRequest returns a pointer. Any help is much appreciated. Thanks. Here's the relevant header info: @interface Globals : NSObject { UserItem *userData; NSURLConnection *urlConnection; NSString *imageCacheLocation; NSOperationQueue *opQueue; } Here's the implementation of sayHello: - (void)sayHello:(BOOL)updateVisits; { NSString *updString; if (updateVisits) updString = @"Y"; else updString = @"N"; NSDictionary *dataDict = [[NSDictionary alloc] initWithObjectsAndKeys: [[UIDevice currentDevice] uniqueIdentifier], @"id", kProgVersion, @"pv", @"1", @"pr", userData.tagID, @"tg", updString, @"uv", nil]; NSString *urlString = [[NSString alloc] initWithString:kHelloURL]; urlConnection = [self localPOST:dataDict toUrl:urlString delegate:self]; [dataDict release]; [urlString release]; } - (NSURLConnection *)localPOST:(NSDictionary *)dictionary toUrl:(NSString *)urlString delegate:(id)delegate { NSString *myBounds = [[NSString alloc] initWithString:@"0xKmYbOuNdArY"]; NSMutableData *myPostData = [[NSMutableData alloc] initWithCapacity:10]; NSArray *formKeys = [dictionary allKeys]; for (int i = 0; i < [formKeys count]; i++) { [myPostData appendData:[[NSString stringWithFormat:@"--%@\n", myBounds] dataUsingEncoding:NSUTF8StringEncoding]]; [myPostData appendData:[[NSString stringWithFormat: @"Content-Disposition: form-data; name=\"%@\"\n\n%@\n", [formKeys objectAtIndex:i], [dictionary valueForKey:[formKeys objectAtIndex:i]]] dataUsingEncoding:NSUTF8StringEncoding]]; } [myPostData appendData:[[NSString stringWithFormat:@"--%@--\n", myBounds] dataUsingEncoding:NSUTF8StringEncoding]]; NSURL *myURL = [[NSURL alloc] initWithString:urlString]; NSMutableURLRequest *myRequest = [[NSMutableURLRequest alloc] initWithURL:myURL cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30]; NSString *myContent = [[NSString alloc] initWithFormat: @"multipart/form-data; boundary=%@", myBounds]; [myRequest setValue:myContent forHTTPHeaderField:@"Content-Type"]; [myRequest setHTTPMethod:@"POST"]; [myRequest setHTTPBody:myPostData]; NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:myRequest delegate:delegate]; if (!connection) { [[Globals sharedGlobals] showAlertWithTitle: NSLocalizedString( @"Connection failed", @"alert title - connection failed") message: NSLocalizedString( @"Could not open a connection.", @"alert message - connection failed")]; } [myBounds release]; [myPostData release]; [myURL release]; [myRequest release]; [myContent release]; return connection; } - (void)handleNetworkError:(NSError *)error { if (networkErrorAlert) return; networkErrorAlert = YES; [[Globals sharedGlobals] showAlertWithTitle: NSLocalizedString( @"Network error", @"alert title - network error") message: [NSString stringWithFormat: NSLocalizedString( @"This app needs a network connection to function properly.", @"alert message - network error")] otherButtons:nil delegate:self]; } - (void) connectionDidFinishLoading:(NSURLConnection *)connection { [urlConnection release]; urlConnection = nil; } - (void) connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { [self handleNetworkError:error]; [urlConnection release]; urlConnection = nil; }

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  • UILabel not updating

    - by iFloh
    Sorry the basic question, but this bugs me for a while now. I create a details view from a UITable and try to dynamically set its labels, but they are not updating: - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { myObject *tmpObj = [[myObject objectAtIndex:indexPath.section] objectAtIndex:indexPath.row]; myViewController *tmpVC = [[myViewController alloc] initWithNibName:@"NIBfile" bundle:nil]; [tmpVC.myLabel setText:tmpObj.myTitle]; // The debugger shows the text: myTitle = "myText" NSLog(@"%@", tmpVC.myLabel); // NSLog SHOWS NULL [self.navigationController pushViewController:tmpVC animated:YES]; [tmpObj release]; } any ideas why the value is not coming through?

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  • Apple push notifications could not receive size of message error

    - by embedded
    I'm trying to send some push notification message to my App using the sandbox option. I'm getting those messages on my console: Sun Apr 25 21:56:22 unknown /usr/libexec/notification_proxy[57] : Could not receive size of message Sun Apr 25 21:56:22 unknown /usr/libexec/notification_proxy[57] : Could not receive message How do I resolve this? Thanks

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  • draw line over uilable after loading from nib

    - by Nnp
    here is my code CGContextRef c = UIGraphicsGetCurrentContext(); CGContextBeginPath(c); CGContextMoveToPoint(c, 277.0f, 21.0f); CGFloat newpoint = 277.0f + (CGFloat)(self.msrp.text.length * 8); //NSLog(@"%f", newpoint); CGContextAddLineToPoint(c, newpoint, 21.0f); CGContextStrokePath(c); i am trying to draw a line over UIlabel, i am loading my view from nib.i dont know what i am doing wrong. i just work fine if i draw entire view instead loading from nib.(but i dont wanna do that)

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  • What are some methods to debug Javascript inside of a UIWebView?

    - by bpapa
    I'm trying to figure out why something with Javascript isn't working inside of a UIWebView. To my knowledge, there is no way to set a breakpoint inside of XCode for a js file. No problemo, I'll just go back to 2004 and use alert statemen-- oh wait they don't seem to work inside of a UIWebView either! The only thing I could think of is by exporting my HTML And JS files to my desktop and then just doing my debugging inside of Safari. And that works! But of course, the bug I'm fighting with in the UIWebView doesn't occur in Safari. Are there any other ways for debugging inside of a UIWebView, or any tricks that I can use akin to using the old-school alert method?

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  • Using CATransition in a viewController

    - by eco_bach
    Hi I'm trying to implement the ViewTransitions code sample from Apple, but putting all the logic in my viewController instead of my applicationDelegate class. I'm getting a bizarre error when I try to compile. I'm importing QuartzCore in my viewcontroller implementation as #import _kCATransitionFade", referenced from: _kCATransitionFade$non_lazy_ptr in ViewTransitionsAsViewControllerViewController.o (maybe you meant: _kCATransitionFade$non_lazy_ptr) Anyone have any ideas?

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  • What library is used for the main menu in the facebook iOS app?

    - by Seth
    I'm making an app that has more options than will easily fit into a UITabBarController. I wanted to use something like what the facebook app has for its main menu. My guess is that it isn't proprietary to facebook, because the SCVNGR app uses something similar. This library lets you re-order the icons the way you can re-order the apps from the main menu (i.e. press and hold - icons jiggle - you can drag them around). Does anyone know what library provides this UIView? I'd like to use it if possible. Thanks!

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  • How to linebreak long string constructs ?

    - by iFloh
    I am editing SQLite SQL statements of substantial length. How can I break these into several lines to allow comfortablt editing? const char *sql = "SELECT arguments arguments arguments arguments arguments arguments arguments arguments arguments arguments FROM a, b, WHERE condition condition condition condition condition condition condition" into const char *sql = "SELECT arguments arguments arguments arguments arguments arguments arguments arguments arguments arguments FROM a, b WHERE condition condition condition" cheers

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  • selectedSegmentIndex not updating UISegmentControl

    - by munchine
    In my viewDidLoad, I'm retrieving user preferences and updating the settings tab. It is working for editSelection (see code) but the other NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; BOOL editSelection = [userDefaults boolForKey:@"editToggleSwitch"]; editingToggle.selectedSegmentIndex = editSelection; // this is working! bToggle.selectedSegmentIndex = [[userDefaults objectForKey:@"bSegment"] intValue]; In the view, the editingToggle segment is displaying correctly but bToggle is always at 0? NSLog shows that the data was saved and retrieved correctly. I've even set bToggle.selectedSegmentIndex = 1; but it still does not reflect correctly in the view? Any ideas?

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  • Editable table view cell

    - by Koning Baard XIV
    I am creating an application. I have to implement a bookmark feature, and adding one should be similar to this: I want editable UITableViewCells for text input. I was wondering if there is an easier way then embedding a UITextField into a UITableViewCell. And if not, can someone explain how I can use the UITextField inside it? Thanks

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  • How to flip the origin.y of an CGRect?

    - by mystify
    I'm trying to draw an UIImageView, but the frame's origin is wrong when I flip the coordinate system for drawing not upside-down. CGRect imgRect = imgView.frame; imgRect.origin.y += 10.0f; CGContextTranslateCTM(context, 0.0f, imgRect.size.height); CGContextScaleCTM(context, 1.0f, -1.0f); CGContextDrawImage(context, imgRect, imgView.image.CGImage); like you can see I move the image down by 10, but instead of going down by 10, it goes UP by 10. That's completely unlogical since I had actually inverted the wrong coordinate system to look exactly like the one in UIView, right? What to do about it?

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  • Problem in cropping the UIImage using CGContext?

    - by Rajendra Bhole
    Hi, I developing the simple UIApplication in which i want to crop the UIImage (in .jpg format) with help of CGContext. The developed code till now as follows, CGImageRef graphicOriginalImage = [originalImage.image CGImage]; UIGraphicsBeginImageContext(originalImage.image.size); CGContextRef ctx = UIGraphicsGetCurrentContext(); CGBitmapContextCreateImage(graphicOriginalImage); CGFloat fltW = originalImage.image.size.width; CGFloat fltH = originalImage.image.size.height; CGFloat X = round(fltW/4); CGFloat Y =round(fltH/4); CGFloat width = round(X + (fltW/2)); CGFloat height = round(Y + (fltH/2)); CGContextTranslateCTM(ctx, 0, image.size.height); CGContextScaleCTM(ctx, 1.0, -1.0); CGRect rect = CGRectMake(X,Y ,width ,height); CGContextDrawImage(ctx, rect, graphicOriginalImage); croppedImage = UIGraphicsGetImageFromCurrentImageContext(); return croppedImage; } The above code is worked fine but it can't crop image. The original image memory and cropped image memory i will got same(equal to original image memory). The above code is right for cropping the image?????????????????? How i cropping the image (in behind pixels should also be crop) from the center of the image???????????? I already wasting a lot of time for developing the above code , but i didn't get answer or way to find out how to crop the image.Thanks for sending me answer in advanced.

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  • TTNavigator three20 openURLAction

    - by disp
    I'm new to three20 and trying to find my way through the TTNavigator class. I try to push to a new view via the URL system. So I used openURL: animated: method which works just fine, but it's deprecated, and I know that I should use openURLAction instead, but this has no animated: parameter. Am I missing something?

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  • How to write text(using CGContextShowTextAtPoint) dynamically near graph x and y-axis intervals?

    - by Rajendra Bhole
    I developed graph using NSObject class and using CGContext method. The following code displaying dynamically in X and Y-axis intervals, CGContextSetRGBStrokeColor(ctx, 2.0, 2.0, 2.0, 1.0); CGContextSetLineWidth(ctx, 2.0); CGContextMoveToPoint(ctx, 30.0, 200.0); CGContextAddLineToPoint(ctx, 30.0, 440.0); for(float y = 400.0; y >= 200.0; y-=30) { CGContextSetRGBStrokeColor(ctx, 2.0, 2.0, 2.0, 1.0); CGContextMoveToPoint(ctx, 28, y); CGContextAddLineToPoint(ctx, 32, y); CGContextStrokePath(ctx); //CGContextClosePath(ctx); } CGContextMoveToPoint(ctx, 10, 420.0); CGContextAddLineToPoint(ctx, 320, 420.0); //CGContextAddLineToPoint(ctx, 320.0, 420.0); //CGContextStrokePath(ctx); for(float x = 60.0; x <= 260.0; x+=30) { CGContextSetRGBStrokeColor(ctx, 2.0, 2.0, 2.0, 1.0); CGContextMoveToPoint(ctx, x, 418.0); CGContextAddLineToPoint(ctx, x, 422.0); CGContextStrokePath(ctx); CGContextClosePath(ctx); } I want to write the dynamic text on the X and Y-axis lines near the intervals (like X-axis is denoting number of days per week and Y-axis denoting something per someting)? Thanks.

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  • NSUndoManager grouping problem?

    - by anonymous
    I'm working on a barebones drawing app. I'm attempting to implement undo/redo capability, so I tell the view's undoManager to save the current image before updating the display. This works perfectly (yes, I understand that redrawing/saving the entire view is not incredibly efficient, but to solve this problem before attempting to optimize the code). However, as expected, when I 'undo' or 'redo', only the minute change is reflected. My goal is to have the whole finger stroke undone/redone. To do that, I told the undoManager to [beginUndoGrouping] in the [touchesBegan] method, and to [endUndoGrouping] in [touchesEnded]. That works for a bit, but after drawing a few strokes, the app crashes, and gdb exits with exc_bad_access. I'm very grateful for any insight you can give me. - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { mouseDragged = YES; currentPoint = [[touches anyObject] locationInView:self]; UIGraphicsBeginImageContext(drawingImageView.bounds.size); [drawingImageView.image drawInRect:drawingImageView.bounds]; CGContextRef ctx = UIGraphicsGetCurrentContext(); CGContextSetLineCap(ctx, kCGLineCapRound); CGContextSetLineWidth(ctx, drawingWidth); [drawingColor setStroke]; CGContextBeginPath(ctx); CGContextMoveToPoint(ctx, previousPoint.x, previousPoint.y); CGContextAddLineToPoint(ctx, currentPoint.x, currentPoint.y); CGContextStrokePath(ctx); [self.undoManager registerUndoWithTarget:drawingImageView selector:@selector(setImage:) object:drawingImageView.image]; drawingImageView.image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); previousPoint = currentPoint; }

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