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  • Application tried to present modally an active controller ios

    - by Matthew
    I was trying to set the ViewController with a parent view controller before it shows show that it can provide call backs, I done this using PrepareForSegue - (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { if ([segue.identifier isEqualToString:@"newQuarter"]) { [segue.destinationViewController setParentViewController:self]; } } It crashed giving me the error message: Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Application tried to present modally an active controller. So I tried using another method and set up a new view controller on the button touches up, - (IBAction) buttonClicked { NewViewController *newController = [[NewViewController alloc] init]; [newController setParentViewController:self]; [self presentViewController:newController animated:YES completion:nil]; } but with no luck it is still giving me the same error message, can anyone please advice? Thanks!

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  • Ipad UIImagePickerController and UIPopoverController error

    - by nishantcm
    Hi, I am using this code to open a popover with imagepicker -(IBAction)photosAction:(id)sender { // dismiss any left over popovers here UIImagePickerController* picker = [[UIImagePickerController alloc] init]; picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; picker.delegate = self; UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:picker]; self.popoverController = popover; popoverController.delegate = self; [popoverController presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES]; [picker release]; But this results in this error request for member 'popoverController' in something not a structure or union and this error 'popoverController' undeclared (first use in this function). Also I want to dismiss the popover when the image is selected. What code should I put in the following function to dismiss the popover once the image is selected. (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { Thanks for the help!

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  • getting at a UIButton with the tag property IPhone

    - by dubbeat
    Hey There, I'm having a little trouble using the tag property to access a UIButton UIButton *randomButton = [[UIButton buttonWithType:UIButtonTypeRoundedRect ]retain]; randomButton.frame = CGRectMake(205, 145, 90, 22); // size and position of button [randomButton setTitle:@"Random" forState:UIControlStateNormal]; randomButton.backgroundColor = [UIColor clearColor]; randomButton.adjustsImageWhenHighlighted = YES; [randomButton addTarget:self action:@selector(getrandom:) forControlEvents:UIControlEventTouchUpInside]; randomButton.reversesTitleShadowWhenHighlighted=YES; randomButton.toggleButton [self.view addSubview:randomButton]; [randomButton release]; randomButton.tag=333; Then later on in code I try to get at the button in the following manner which gives me an error saying Incompatible Objective-C types initializing 'struct UIView *', expected 'struct UIButton *' UIButton *random = [self.view viewWithTag:333]; random.highlighted=NO;

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  • NSLock deadlock

    - by twinkle
    I have an instance variable in class Foo @property (nonatomic, retain) NSLock *mLock; initialized as: self.mLock=[NSLock new]; Foo also has -(void)getLock { while (![self.mLock tryLock]) { NSLog(@"Trying to lock... sleep(1)"); sleep(1); } NSLog(@">>>>>>> Acquiring LOCK"); [self.mLock lock]; NSLog(@">>>>>>> LOCK acquired"); } From another method in the Foo class, I call [Foo getLock]. This immediately results in a deadlock. Log below: 2010-03-18 07:06:01.660 test[9816:207] >>>>>>> Acquiring LOCK 2010-03-18 07:06:01.665 test[9816:207] *** -[NSLock lock]: deadlock (<NSLock: 0x3c0f820> '(null)') 2010-03-18 07:06:01.666 test[9816:207] *** Break on _NSLockError() to debug. Thanks!

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  • WPF - simple relative path - FindAncestor

    - by user309392
    In the XAML below the ToolTip correctly binds to RelativeSource Self. However, I can't for the life of me work out how to get the TextBlock in the commented block to refer to SelectedItem.Description <Controls:RadComboBoxWithCommand x:Name="cmbPacking" Grid.Row="2" Grid.Column="5" ItemsSource="{Binding PackingComboSource}" DisplayMemberPath="DisplayMember" SelectedValuePath="SelectedValue" SelectedValue="{Binding ElementName=dataGrid1, Path=SelectedItem.PackingID}" ToolTip="{Binding RelativeSource={RelativeSource Self}, Path=SelectedItem.Description}" IsSynchronizedWithCurrentItem="True" Style="{StaticResource comboBox}"> <!-- <Controls:RadComboBoxWithCommand.ToolTip>--> <!-- <TextBlock Text="{Binding RelativeSource={RelativeSource Self}, Path=SelectedItem.Description}" TextWrapping="Wrap" Width="50"/>--> <!-- </Controls:RadComboBoxWithCommand.ToolTip>--> </Controls:RadComboBoxWithCommand> I would appreciate any suggestions Thanks - Jeremy

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  • video player with qt phonon (using python)

    - by cppb
    hi, I am working on Windows xp and am trying to get a simple video player running. I am trying to use Phonon::VideoPlayer module for this. I am connecting the signal as connect(self.player,SIGNAL("finished()"),self.player.deleteLater) and then , when the Play button is pressed, it makes the following call: self.player.play(Phonon.MediaSource("C:\vid.mp4")) But, this doesn't display the video in the video player widget. Neither can I hear audio. Can anyone help?? I tried using different video file formats but no luck.

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  • Showing Master/Detail UITableView inside UIPopOverController

    - by tilomitra
    I have a UIPopOverController that shows a UIViewController with a UITableview in its view. The cells in the table have a detailedView, but whenever that view gets pushed, the PopOverController increases in size, and I am left with all this white space inside it. Question is this: Can anyone show me how I can have a Master/Detail UITableview show inside a PopOverController whilst preserving its dimensions? Some of my code if it helps you: //Creating the PopOver with the UIViewController addTaskViewController = [[AddTaskViewController alloc] initWithNibName:@"AddTaskViewController" bundle:nil]; UINavigationController *addTaskNavController = [[UINavigationController alloc] initWithRootViewController:addTaskViewController]; UIPopoverController *addTaskPopOver = [[UIPopoverController alloc] initWithContentViewController:addTaskNavController]; self.addTaskPopOverController = addTaskPopOver; addTaskPopOverController.delegate = self; //...neccessary releases... //Showing the popover when a button is pressed - (void) addTasksButtonPressed:(id)sender { //Display the Popover containing a view from AddTaskViewController [self.addTaskPopOverController setPopoverContentSize:CGSizeMake(400, 700)]; [addTaskPopOverController presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES]; }

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  • iPhone Gameloop render update from a separate thread

    - by Rich
    Hi, I'm new to iPhone development. I have a game loop setup as follows. (void)CreateGameTick:(NSTimeInterval) in_time { [NSThread detachNewThreadSelector:@selector(GameTick) toTarget:self withObject:nil]; } My basic game tick/render looks like this (void)GameTick { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; CGRect wrect = [self bounds]; while( m_running ) { [self drawRect: wrect]; } [pool release]; } My render function gets called. However nothing gets drawn (I am using Core Graphics to draw some lines on a derived UIView). If I call my update via a timer then all is well and good. Can you tell me why the render fails when done via threads? And is it possible to make it work via threads? Thanks Rich

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  • Hiding/ Showing UIPickerView

    - by aahrens
    I Have an a touchesEnded event that checks for when a UITextField is pressed. What I would like it to do is is hide/show a UIPickerView. How can this be done? - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{ UITouch *touch = [[event allTouches] anyObject]; if (CGRectContainsPoint([self.textField frame], [touch locationInView:self.view])) { NSString * error = @"Touched the TextField"; UIAlertView * errorAlert = [[UIAlertView alloc] initWithTitle:@"Selection!" message:error delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; [errorAlert show]; //Want to show or hide UIPickerView } } I already have an allocated UIPickerView when touches occur @interface ThirdViewController : UIViewController <UITextFieldDelegate,UIPickerViewDelegate> { IBOutlet UIPickerView *pickerView; }

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  • Simple python oo issue

    - by Alex K
    Hello, Have a look a this simple example. I don't quite understand why o1 prints "Hello Alex" twice. I would think that because of the default self.a is always reset to the empty list. Could someone explain to me what's the rationale here? Thank you so much. class A(object): def __init__(self, a=[]): self.a = a o = A() o.a.append('Hello') o.a.append('Alex') print ' '.join(o.a) # >> prints Hello Alex o1 = A() o1.a.append('Hello') o1.a.append('Alex') print ' '.join(o1.a) # >> prints Hello Alex Hello Alex

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  • why eventsMatchingPredicate returns nil?

    - by OneZero
    Here's my code: NSString * calID = [[NSUserDefaults standardUserDefaults] objectForKey:@"calendarIdentifier"]; EKCalendar *cal = [eventStore calendarWithIdentifier:calID]; // If calendar exists if(cal) { // Retrieve all existing events until today NSPredicate *predicate = [eventStore predicateForEventsWithStartDate:[NSDate distantPast] endDate:[NSDate date] calendars:@[cal]]; self.events = [eventStore eventsMatchingPredicate:predicate]; if(self.events==nil) NSLog(@"nil events!"); } The calendarItentifier is the variable that I stored when I created the calendar in my program, so it's not the case I'm adding events on the wrong calendar. However, the code does not work to retrieve past events on the calendar, it simply returns nil to self.events. But I DID add events on the calendar. Can anything tell me if there's anything wrong with the code?

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  • Does UIGestureRecognizer work on a UIWebView?

    - by rscott
    I am attempting to get a UIGestureRecognizer working with a UIWebview which is a subview of a UIScrollView. This sounds odd but when I have the numberOfTouchesRequired set to 2 the selector fires, but when numberOfTouchesRequired is set to one the selector doesn't fire. Here is my code: UITapGestureRecognizer *tap1 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(select1:)]; tap1.numberOfTouchesRequired = 2; tap1.numberOfTapsRequired = 1; tap1.delegate = self; [self.ans1WebView addGestureRecognizer:tap1]; [tap1 release]; - (void) select1:(UILongPressGestureRecognizer *)sender { //Do Stuff } I've confirmed this by using the Apple sample for UIGestureRecognizer and inserting a webview in their nib. Their tap code works everywhere but inside the area of the webview.

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  • How to navigate from one view to other view using UIPageControl?

    - by Madan Mohan
    Hi Guys, I have page control but not navigating to other view. so please provide the solution. pageControl=[[UIPageControl alloc] initWithFrame:CGRectMake(0,380,320,40)]; pageControl.backgroundColor=[UIColor clearColor]; pageControl.userInteractionEnabled =YES; [pageControl addTarget:self action:@selector(pageAction:) forControlEvents:UIControlEventValueChanged]; [pageControl setHighlighted:YES]; -(void)pageAction:(UIPageControl*)control { [self displayNextPage]; [self displayPreviousPage]; } Thank You, Madan Mohan.

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  • Customize UIToolBar with Background Image

    - by Taimur Hamza
    hi, I want to add a background image to my UIToolbar instance. This line of code doesnt work. myToolBar.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"Layer-1.png"]]; Another solution tht i found out from stackoverflow aint working as well UIImage *myimage = [UIImage imageNamed:@"Layer-1.png"]; myToolBarImage.image = myimage; [self.view addSubview:myToolBarImage]; [self.view sendSubviewToBack:myToolBarImage]; [self.view addSubview:myToolBar]; Kindly help me out. Thanks

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  • How to push a modal view from didFinishPickingMediaWithInfo

    - by Andiih
    I've got an imagePickerController which allows the user to take or select an image. In - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info; I would like to trigger opening another modal view to capture the caption. I have a call for that purpose... -(void) getcaption:(id) obj { textInput * ti = [[textInput alloc] initWithContent:@"" header:@"Caption for photo" source:2]; ti.delegate = self; [self presentModalViewController:ti animated:YES]; [ti release]; } The question is how to call getcaption without triggering a spiral of #6663 0x324abb18 in -[UIView(Hierarchy) _makeSubtreePerformSelector:withObject:withObject:copySublayers:] () At the moment I do [self performSelector:@selector(getcaption:) withObject:nil afterDelay:(NSTimeInterval)1]; in didFinishPickingMediaWithInfo which is nasty, and only 95% reliable

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  • Can I ensure, using C#, that an X509Certificate was issued by a trusted authority?

    - by dommer
    If I use X509Certificate.CreateFromSignedFile to get the certificate used to sign a file, can I confirm that it was signed by a trusted authority - and isn't just a "self-signed" cert of some kind? I want to extract the "Subject" (company) name from the cert to ensure that an unmanaged DLL I'm using is unmolested (I can't checksum it as it's updated frequently and independently) and official. However, I'm concerned that a fake DLL could be signed with a "self-signed" cert and return the original company's name. So, I want to ensure the the cert was issued by Versign, Thwate or similar (anything installed on the cert repository on the machine will be fine). How can I do this, if at all, when using X509Certificate.CreateFromSignedFile? Or does it do this automatically (i.e. a "self-signed" cert will fail)?

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  • CGAffineTransform does not rotate subview - MKAnnotationView, CGAffineTransformMakeRotation

    - by ZeroDiv
    I have a view that does 1 simple thing: draws an image. I can rotate the image like this: CGAffineTransform transform = CGAffineTransformMakeRotation((CGFloat)radians); self.transform = transform; // WORKS: DRAWS, ROTATES But if I delegate the image-drawing function to a subview, and apply the rotation transform to the subview: CGAffineTransform transform = CGAffineTransformMakeRotation((CGFloat)radians); self.imageView.transform = transform; // DOESN'T WORK: DRAWS, BUT NO ROTATE I get the image drawn, but no rotation. Why? FWIW the "self" view is an MKAnnotationView.

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  • Reference from UITableViewCell to UITableView to UINavigationController

    - by Nick
    If the user taps and holds on a Foo table view cell for 2 seconds, a modal view should be shown. The modal view is also displayed when a new Foo is added to the cell. The modal view's delegate protocol is implemented by the parent UITableView subclass. My tap and hold detection code is in the Foo UITableViewCell class. I'm having difficulty referencing the parent tableview's navigation controller to display the modal view. FooModalViewController *modalController = [[FooModalViewController alloc] initWithNibName:@"FooModalViewController" bundle:nil]; FooTableViewController *tableView = (FooTableViewController *) self.superview; foo.delegate = tableView; Seems OK but I'm having problems referencing the navigation controller that contains the tableview.. The code below builds OK but throws an exception - NSOBject DoesNotRecognizeSelector. UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:modalController]; [[tableView.navigationController] presentModalViewController:navigationController animated:YES]; I think that perhaps my design is flawed..?

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  • Segue Popover won't behave properly

    - by CStreel
    I'm trying to use Segue to present then dismiss a Popover view a UIBarButtonItem is clicked. I've created a generic Segue that is not anchored to anything but the view and given it a name I've Anchored the UIBarButtonItem in the Interface Builder to: - (IBAction)clickedSettings:(id)sender { if(self.popSegue != nil) { [self.popSegue.popoverController dismissPopoverAnimated:YES]; } else { //Current says only a button may [self performSegueWithIdentifier:@"Settings" sender:sender]; } } But when ever i click the button to display the Segue it gives me an error: Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'UIStoryboardPopoverSegue must be presented from a bar button item or a view.' It doesn't even hit my -(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender I've read the following questions on stack: iOS:How to dismiss Popover UIBarButtonItem + popover segue creates multiple popovers But i still get the same error. For the life of me i can't figure out what is going wrong

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  • didSelectRowAtIndexPath TableView Popover Issue

    - by Jack Cody
    I've tried a lot of different code examples including just brute force try this try that but, stumped. The popover left arrow seems to display just fine if the first row is displayed at the very top of the table view but, when the table scrolls down the popover left arrow doesn't align correctly with the table row selected. Solutions or suggestions would be most appreciated. CGRect myFrame = [tableView rectForRowAtIndexPath:indexPath]; [self.editViewPopoverController setPopoverContentSize:CGSizeMake(320, 400)]; [self.editViewPopoverController presentPopoverFromRect:CGRectMake(myFrame.origin.x, myFrame.origin.y + offset, 400, 0) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionLeft animated:YES]; Thanks.

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  • pagination in fbjs/ajax

    - by fusion
    i've a search form in which i'm trying to implement pagination - getting the data through ajax. everything works out fine initially, except when i go to the next page or any of the links on the pagination. it gives me a page not found error. can anyone please point out what is wrong with my code? search.html <div class="search_wrapper"> <input type="text" name="query" id="query" class="txt_search" onkeyup="submitPage('http://website/name/search.php', 'txtHint', '1');" /> <input type="button" name="button" class="button_search" onclick="submitPage('http://website/name/search.php', 'txtHint', '1');" /> <p> <div id="txtHint"></div> </p> </div> search ajax.js: function submitPage(url, target_id, page) { // Retrieve element handles, and populate request parameters. var target = document.getElementById(target_id); if(typeof page == 'undefined') { page = 1; } // Set up an AJAX object. Typically, an FBML response is desired. document.getElementById(target_id).setInnerXHTML('<span id="caric"><center><img src="http://website/name/images/ajax-loader.gif" /></center></span>'); var ajax = new Ajax(); ajax.responseType = Ajax.FBML; ajax.requireLogin = true; ajax.ondone = function(data) { // When the FBML response is returned, populate the data into the target element. document.getElementById('caric').setStyle('display','none'); if (target) target.setInnerFBML(data); } ajax.onerror = function() { var msgdialog = new Dialog(); msgdialog.showMessage('Error', 'An error has occurred while trying to load.'); return false; } var params = { 'query' : document.getElementById('query').getValue() }; ajax.post(url, params, page); } search.php: $search_result = ""; if (isset($_POST["query"])) $search_result = trim($_POST["query"]); if(isset($_GET['page'])) $page = $_GET['page']; else $page = 1; ..... $self = $_SERVER['PHP_SELF']; $limit = 2; //Number of results per page $numpages=ceil($totalrows/$limit); $query = $query." ORDER BY idQuotes LIMIT " . ($page-1)*$limit . ",$limit"; $result = mysql_query($query, $conn) or die('Error:' .mysql_error()); ?> <div class="search_caption">Search Results</div> <div class="search_div"> <table> . . .display results </table> </div> <hr> <div class="searchmain"> <?php //Create and print the Navigation bar $nav=""; $next = $page+1; $prev = $page-1; if($page > 1) { $nav .= "<a onclick=\"submitPage('','','$prev'); return false;\" href=\"$self?page=" . $prev . "&q=" .urlencode($search_result) . "\">< Prev</a>"; $first = "<a onclick=\"submitPage('','','1'); return false;\" href=\"$self?page=1&q=" .urlencode($search_result) . "\"> << </a>" ; } else { $nav .= "&nbsp;"; $first = "&nbsp;"; } for($i = 1 ; $i <= $numpages ; $i++) { if($i == $page) { $nav .= "<span class=\"no_link\">$i</span>"; }else{ $nav .= "<a onclick=\"submitPage('','',$i); return false;\" href=\"$self?page=" . $i . "&q=" .urlencode($search_result) . "\">$i</a>"; } } if($page < $numpages) { $nav .= "<a onclick=\"submitPage('','','$next'); return false;\" href=\"$self?page=" . $next . "&q=" .urlencode($search_result) . "\">Next ></a>"; $last = "<a onclick=\"submitPage('','','$numpages'); return false;\" href=\"$self?page=$numpages&q=" .urlencode($search_result) . "\"> >> </a>"; } else { $nav .= "&nbsp;"; $last = "&nbsp;"; } echo $first . $nav . $last; ?> </div> this is the link which displays on the next page: http://apps.facebook.com/website-folder/search.php?page=2&q=good&_fb_fromhash=[some obscure number]

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  • nsthread in iphone xcode

    - by BibiBuBu
    Good Day! i want to use nsthreads in a project of xcode that will call a function which is for the network access and will check that if the network is there or not, so i need to have a thread which will execute after lets say 1 minutes to check the connectivity. and will continue run unless the app is closed. [NSThread detachNewThreadSelector:@selector(startTheBackgroundJob) toTarget:self withObject:nil]; startTheBackgroundJob NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // wait for 3 seconds before starting the thread, you don't have to do that. This is just an example how to stop the NSThread for some time [NSThread sleepForTimeInterval:5]; //[self performSelectorInBackground:@selector(checkNet) withObject:nil]; [self performSelectorOnMainThread:@selector(checkNet) withObject:nil waitUntilDone:YES]; [pool release]; it works only for the first time but not any other, i mean only 1 loop it makes can somebody help me in this regard. Thanks

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  • Wandering CGAffineTransformMakeRotation

    - by Joe
    Okay this is about to make me insane -- any help would be appreciated. I have two images which are part of a timer application. One is the needle/hand and the other is a little hub which is styled to look like the needle base. I'm using a CGAffineTransformMakeRotation to rotate the needle and the base stays stationary. The problem: there is like a 1-2px 'wander' to the needle's rotation which makes it look like it's moving off center in relation to the base. I have worked the base and needle image over in PS extensively, and both are dead center pixel wise -- seriously. My method to rotate the hand: -(IBAction) rotateSteamArrow{ CGAffineTransform rotate = CGAffineTransformMakeRotation( degreesSteam / 180.0 * 3.14159265); degreesSteam = degreesSteam + 1.5; if (degreesSteam <= 180) { [steamNeedle setTransform:rotate]; } else { [self handleSteamTimer]; [self toggleButton:(id)timerButton]; [self switchSound]; } }

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  • Printing Stdout In Command Line App Without Overwriting Pending User Input

    - by Chris S
    In a basic Unix-shell app, how would you print to stdout without disturbing any pending user input. e.g. Below is a simple Python app that echos user input. A thread running in the background prints a counter every 1 second. import threading, time class MyThread( threading.Thread ): running = False def run(self): self.running = True i = 0 while self.running: i += 1 time.sleep(1) print i t = MyThread() t.daemon = True t.start() try: while 1: inp = raw_input('command> ') print inp finally: t.running = False Note how the thread mangles the displayed user input as they type it (e.g. hell1o wo2rld3). How would you work around that, so that the shell writes a new line while preserving the line the user's currently typing on?

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  • Circular references in TFS Database Edition

    - by Jaco Pretorius
    I'm using TFS Database Edition to script a number of databases. Many of the databases have references between them - for example, view in database A might do select ... from B..TableX This works fine as long as database B is also a project in the solution. The problem comes in when I have objects in database A referencing database B and database B referencing objects in database A. It seems like Visual Studio needs to build the projects in order which is obviously not possible in this case. How do you deal with circular references between database projects in TFS database edition?

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