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  • How to intercept touch events globally?

    - by mystify
    I have an view which is sometimes covered by some other views. However, if the user slides the finger across the screen, I want to slide that underlying view across the screen, too. I could start making custom views for all those covering subviews and forward all kinds of touch events, but that's somewhat cumbersome. Maybe there's some kind of notification or another way that a UIView or UIControl subclass can be aware of touch events happening right now, no matter where they are. In short: I need an UIView subclass or UIControl subclass which knows about any touch events happening on the entire screen. Or at least if tht's not possible, knowing about any touch events happening above itself in the same underlying superview. Another description: There are 20 views, all reside inside the same superview. The first view is covered by 19 others. But if the user slides across the screen, that first view must slide too, so it must be aware of touch events. Is there any better solution that making all 19 views forward touch events? (yes, all 19 views respond to touch events in this example)

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  • how to set objectForKey to UISwitch to access switch for save selected option

    - by Rkm
    SystemUIViewcontroller has button event. Tap on Button fire InfoTableviewController. InfoTableview has UISwitch. How to set objectForKey to Info to access UIswitch ViewDidload of System... - (void)viewDidLoad { [super viewDidLoad]; self.Infoarray = [NSMutableArray array]; Info *info = [[Info alloc]initWithNibName:@"Info" bundle:nil]; [self.Infoarray addObject:[NSDictionary dictionaryWithObjectsAndKeys:info, @"viewController", nil]]; } SystemUIviewcontroller button event... -(IBAction) Info_Button_Clicked:(id) sender { Info *info = [[Info alloc]initWithNibName:@"Info" bundle:[NSBundle mainBundle]]; [self.navigationController pushViewController:info animated:YES]; [info release]; } Here for Info TableviewController... - (void)viewDidLoad { [super viewDidLoad]; self.Soundarray = [NSArray arrayWithObjects: [NSDictionary dictionaryWithObjectsAndKeys: @"Sounds", @"labelKey", self.SoundsswitchCtl, @"viewKey", nil],nil]; } // Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = nil; if ([indexPath section] == 0) { static NSString *kDisplayCell_ID = @"DisplayCellID"; cell = [self.tableView dequeueReusableCellWithIdentifier: kDisplayCell_ID]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier: kDisplayCell_ID] autorelease]; cell.selectionStyle = UITableViewCellSelectionStyleNone; } else { // the cell is being recycled, remove old embedded controls UIView *viewToRemove = nil; viewToRemove = [cell.contentView viewWithTag:1]; if (viewToRemove) [viewToRemove removeFromSuperview]; } cell.textLabel.text = [[self.Soundarray objectAtIndex: indexPath.row] valueForKey:@"labelKey"]; UIControl *control = [[self.Soundarray objectAtIndex: indexPath.row] valueForKey:@"viewKey"]; [cell.contentView addSubview:control]; return cell; } } - (UISwitch *)SoundsswitchCtl { if (SoundsswitchCtl == nil) { CGRect frame = CGRectMake(198.0, 12.0, 94.0, 27.0); SoundsswitchCtl = [[UISwitch alloc] initWithFrame:frame]; [SoundsswitchCtl addTarget:self action:@selector(switch_Sounds:) forControlEvents:UIControlEventValueChanged]; // in case the parent view draws with a custom color or gradient, use a transparent color SoundsswitchCtl.backgroundColor = [UIColor clearColor]; [SoundsswitchCtl setAccessibilityLabel:NSLocalizedString(@"StandardSwitch", @"")]; SoundsswitchCtl.tag = 1; // tag this view for later so we can remove it from recycled table cells } return SoundsswitchCtl; }

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  • My UITabBarController isn't appearing, but its first view is?

    - by E-Madd
    I've done some reorganizing of my project recently and now I'm not seeing my tab bar controller, but its first view controller's view is appearing. Here's a breakdown of everything that happens prior to the problem. App Delegate loads FirstViewController with nib. FirstViewController loads the application data from my server and then presents MainViewController with a modal transition. MainViewController is where the UITabBarController is supposed to be appearing. It's a very simple class. The .h @interface MainViewController : UIViewController <UITabBarControllerDelegate> { IBOutlet UITabBarController *tabBarController; } @property (nonatomic, retain) UITabBarController *tabBarController; @end The .m @implementation MainViewController @synthesize tabBarController; - (void)viewDidLoad { NSLog(@"MainViewController viewDidLoad"); //set tab bar controller delegate to self tabBarController.delegate = self; // home view HomeViewController *home = [[HomeViewController alloc] initWithTab]; // menu view MenuViewController *menu = [[MenuViewController alloc] initWithTab]; // special offers view SpecialOffersViewController *so = [[SpecialOffersViewController alloc] initWithTab]; // events view EventsViewController *events = [[EventsViewController alloc] initWithTab]; // info view InfoViewController *info = [[InfoViewController alloc] initWithTab]; //populate the tab bar controller with view controllers NSArray *controllers = [NSArray arrayWithObjects:home, menu, so, events, info, nil]; tabBarController.viewControllers = controllers; //release view controllers [home release]; [menu release]; [so release]; [events release]; [info release]; [controllers release]; //add tab bar controller to view [self.view addSubview:tabBarController.view]; [super viewDidLoad]; } and here's the bit from FirstViewController that modally presents the MainViewController... MainViewController *controller = [[MainViewController alloc] initWithNibName:@"MainViewController" bundle:nil]; controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; [self presentModalViewController:controller animated:YES]; [controller release]; I'm not getting any compiler errors or warnings and the app runs swell... no crashing. It just isn't showing the darned TabBar, and it used to when I was creating it on my AppDelegate. I checked everything in my NIB and my outlets seem to be hooked up ok. I have no idea what's happened. Help!

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  • How to reference object values from subview?

    - by Frank Martin
    I have a ViewController and add programmatically a subview. During the initialization of the subview (initWithFrame) i want to set some attributes to values according to attributes that belong to another ViewControllers Child-Object (not a view). -(id)initWithFrame:(CGRect)frame { if (self = [super initWithFrame:frame]) { // The following is kind of what i want self.myAttribute = [self.viewController.otherObject otherValue]; } return self; } Thanks in advance for any answers and comments how to improve the question. Frank

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  • How to load a table view when coming to back with out selection index

    - by ratnasomu
    Hellow all, I am using navigation controller and have table views inside views. when i select any cell it it will navigate to another view. so,from there if i click back button it come sto previous view.But,it showing the cell which is selected previously. I dnt want this .it should not show which cell we selected previously. Could any one help me how to get this. Thanks.

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  • Question related to photogallery

    - by user217572
    I'm saving my image to photo gallary , but I want to fetch this image on click of UIButton and want to show it on the UIImageview or UIview.My code for saving image on photo gallery is as under:- I don't want to use UIImagePickerViewController any where in my programme UIImage *image = [UIImage imageNamed:@"flower.png"]; UIImageWriteToSavedPhotosAlbum(image, self, nil, nil);

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  • Save method in cocoatouch?

    - by Henry D'Andrea
    What is the save method for cocoatouch? I need to add it where the comment is: // whatever you want to do. (BOOL) webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)ntype { if ([request.URL.scheme isEqualToString:@"hide"]) { // whatever you want to do. } return true; }

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  • Setting up Mac OSX build server for multiple users?

    - by MGA
    Hello, I need to set up a OS X build server (Xcode for iOS development). Now the tricky part is, this server will be used in a university environment and many students will have access to it for different projects. How can I set it up so that each student's project is private to them only, keep the server itself protected from students and enable students to access and build remotely. I am not very familiar with the Mac OS X environment so any help would be greatly appreciated! Thank you

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  • Need help with UISearchBar and NSString

    - by guydor
    Hi, I would like to make an if command that checks the value of my UISearchBar in that way if the value of the UISearchBar is equals to " " or multiple spaces without words and chars, an alert will popup. Well, I don't need help with the creation of the alert but I do need help with the if command and the spaces. I know how to do it with multiple "if" command but I want with only 1. Thanks!

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  • iPad UISPlitViewController Common View

    - by saikamesh
    is it possible to have a common view for both master and detail view controllers. What if I need to add a header image(at top, the very first view) common for both the master and detail view controllers. When the device is in the portrait mode the width of the header image view has to shrink to fit to the detail view controller's view and when the orientation changes to landscape the width of the same header image view has to be expanded that is the width of it has to be 1024. Please tell me whether doing this is possible. or any workaround for this?

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  • Unable to call storyboard from xib

    - by Shruti Kapoor
    I am new to iOS development. I am trying to connect to a storyboard from xib file. My xib View Controller has a "Login" which if successful should connect to storyboard. I have googled and searched on stackoverflow for a solution and I am using this code that is given everywhere: UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil]; YourViewController * yourView = (YourViewController *)[storyboard instantiateViewControllerWithIdentifier:@"identifier ID"]; I have created an identifier for my storyboard as well. However, I am not being redirected to the storyboard no matter what I try. When the login finishes, I go back to my main View Controller (xib). I should be instead redirected to the storyboard. Here is what my code looks like in a file called ProfileTabView.m: -(void) loginViewDidFinish:(NSNotification*)notification { [[NSNotificationCenter defaultCenter] removeObserver:self]; UIStoryboard* storyboard = [UIStoryboard storyboardWithName:@"Storyboard" bundle:nil]; ProfileTabView * yourView = (ProfileTabView *)[storyboard instantiateViewControllerWithIdentifier:@"myID"]; } I have implemeted this code in the function that gets called once the login is successful. However, the storyboard "Storyboard" never gets called. Am i doing this right? Am I supposed to be writing this code anywhere else? Thanks a lot for any help :)

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  • Will it use more and more memory if I keep drawing on the UIView?

    - by Tattat
    This is my drawRect: CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetLineWidth(context, 2.0); CGContextSetStrokeColorWithColor(context, [UIColor redColor].CGColor); CGContextMoveToPoint(context, x1, y1); CGContextAddLineToPoint(context, x2, y2); CGContextStrokePath(context); If I run this code thousand times or more. My UIView will have many lines on that. Will it use more memory than only just one line on it? Er... ...I mean, will the program remember the line I draw or after it draw the lines, it won't have any information in the memory. thz .

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  • Loading local html pages in UIWebView

    - by mwt
    I'm working with a UIWebView loading local (i.e. in the source bundle) html pages, ala Apple's Transweb example. Loading the first page is trivial. However, I have added a second html page and linked to it from the first. Attempting to link to a second page doesn't seem to work. Anyone know how to make this work? Thanks.

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  • Layers of Images using UIImageView

    - by Taimur Hamza
    Hi everyone, I just wanted to confirm, is it possible that we add layers of images using UImageView, one as background and other on top of it. I mean i want to use 2 images one has to be in the background and the other on top of it. ( the size of both these images is 320 x 480 ). Through the attributes inspector we cant do it. Is there any we can do it through code. Maybe using subview or something. Thanks Geeks :) Taimur Ajmal

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  • Copy/Paste functionality in UITableViewController.

    - by Simon
    Hi.. I have a UITableViewController. I want to pop the copy/paste menu up when the user touches a cell. How to implement this functionality. Can someone help me. I tried this code, UIMenuController *theMenu = [UIMenuController sharedMenuController]; [theMenu setTargetRect:CGRectMake(10, 200, 100, 40) inView:[self tableView]]; [theMenu setMenuVisible:YES animated:YES]; But it doesn't work. My question is, What CGRect I have to pass as the setTargetRect parameter? Do I need to call SetNeedsDisplayInRect in my TableViewController? What else to do to make this work?

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