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• Accessing UIPopoverController for UIActionSheet on iPad

  - by westsider

  On the iPad, one can show a UIActionSheet using -showFromBarButtonItem:animated:. This is convenient because it wraps a UIPopoverController around the action sheet and it points the popover's arrow to the UIBarButtonItem that is passed in. However, this call adds the UIBarButtomItem's toolbar to the list of passthrough views - which isn't always desirable. And, without a pointer to the UIPopoverController, one can't add other views to the passthrough list. Does anyone know of a sanctioned approach to getting a pointer to the popover controller? Thanks in advance.

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• MPMoviePlayerController fullscreen quirk in iPad

  - by hgpc

  I want to show a MPMoviePlayerController in a view controller and let the user toggle full screen with the default controls, like the YouTube app. I'm using the following code in a bare-bones example: - (void)viewDidLoad { [super viewDidLoad]; self.player = [[MPMoviePlayerController alloc] init]; self.player.contentURL = theURL; self.player.view.frame = self.viewForMovie.bounds; self.player.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; [self.viewForMovie addSubview:player.view]; [self.player play]; } This works well until the user makes the video full screen, rotates the device and taps on the screen. The status bar is shown in the wrong position, as shown in the screenshot below. http://yfrog.com/5fimg0006ryp I'm working with the template Tab Bar Application for iPad. I've only added the viewDidLoad above, the view variables and an UIView in the XIB to show the movie player. What am I doing wrong?

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• iPad and UIPickerView (or UIDatePickerView)

  - by Staros

  Hey all, Has anyone had any luck using a UIPicker in the 3.2 SDK? I'm in the middle of porting an iPhone application over to an iPad and that's the one thing I can't seem to get to work. I've tried... -Creating an action sheet, add the picker as a subview and displaying it. -Creating that above action sheet, making it the view of a generic ViewController, adding that VC to a UIPopover -Making just the picker the view of a generic ViewController, adding that VC to a UIPopover With the action sheet it doesn't even attempt to draw it. In the popover view it attempts to draw but doesn't get rendered correctly. Just wanted to check to see if anyone has accomplished this and if so how. Thanks everyone!

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• Ipad/Iphone UIActionSheet

  - by SteveU

  Hi All, Ive only posted on here a couple of times and people have been very quick and very helpful when responding so thanks. Im trying to use the UIActionsheet element in my Ipad application. But just to confuse matters im using Cocos2d aswell. But here is my problem. If coding the actionsheet with out cocos2d you would use the following code. [actionSheet showInView:self.view]; However because im using cocos2d and there is no views as such the only thing i can think of to reference is the window.. But this is located in the appdelegate class. ive tried [actionSheet showInView:self.Window]; and i get errors any help?

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• How to record an iPad screencast

  - by hgpc

  How do you record an iPad screencast at full scale? I have an iMac with maximum resolution 1680x1050 and the simulator doesn't fit the screen in portrait orientation. It does fit in landscape orientation. Reducing the scale to 50% is not an option because the end result is too small. If the scale could be reduced slightly it would be fine, but not 50%. Is it possible to put the simulator in landscape orientation and still keep the app in portrait mode? Then I could simply rotate the resulting video to get a portrait screencast.

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• Using MPMoviePlayerViewController in SDK 3.2 for iPad

  - by wsurferdude

  I've developed an iPhone app that has been running MPMoviePlayer (pre 3.2 SDK) with no problems. I know this is a newbie question, but how do I get a movie to play in the new MPMoviePlayerViewController. I am only getting audio and wish to learn the new view controller. I've ported my whole app over to iPad and everything else works fine except for video. Could someone please show an example using the movie view controller? Any help would be appreciated. Thanks,

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• Dismissing iPad UIPopoverController when BarButtonItem is pushed while it's open

  - by joshholat

  Using a split view on the iPad, I have the following code: - (void)splitViewController: (UISplitViewController*)svc willHideViewController:(UIViewController *)aViewController withBarButtonItem:(UIBarButtonItem*)barButtonItem forPopoverController:(UIPopoverController*)pc { barButtonItem.title = @"Categories"; NSMutableArray *items = [[toolbar items] mutableCopy]; [items insertObject:barButtonItem atIndex:0]; [toolbar setItems:items animated:YES]; [items release]; self.popoverController = pc; } This works well to show the popover when the button is pressed. However, I'd also like to have the popover dismiss if the button is pressed while it is already open to follow good guidelines. How would I go about doing this? (i.e. if the user repeatedly clicks this button, the popover should come and hide every other hit.)

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• OpenGL view in an iPad splitview

  - by dc

  I'm attempting to add an OpenGL view (such as the one given in Apple's sample code) as the detail view of an iPad's splitview but am running into issues. I've taken the sample code from the base OpenGL project and attempted to add it as a subview of my DetailViewController - ie EAGLView *glview = [[EAGLView alloc] initWithFrame:CGRectMake(0,0,100,100)] but when I add it to the main view and call startAnimating on it, nothing at all happens. Any solutions to this? I have never worked with OpenGL before so perhaps I'm doing this all wrong.

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• application: didFinishLaunchingWithOptions doesn't execute, but RootViewController: viewDidLoad does

  - by BeachRunnerJoe

  I'm playing around with the iPad SplitView template and it was working fine before I started swapping out view objects in my RootViewController. When it was working fine, the application:didFinishLaunchingWithOptions method would be called and would setup my persistant store objects, then the RootViewController:viewDidLoad method would be called to populate my rootView with data from my store. I opened up IB and started swapping out view objects in my RootView and now the application:didFinishLaunchingWithOptions method never gets called, but the RootViewController:viewDidLoad method still does. Obviously, the app crashes because the viewDidLoad method depends on the successful execution of the didFinishLauchingWIthOptions method to setup the persistent store objects. Does anyone have any thoughts on what is causing this or how I can go about investigating what's causing this? I'm obviously new to iPhone OS development, so I apologize if this questions is absurd in any way. Thanks so much in advance for your help!

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• UINavigationController back button half works in iPad landscape orientation

  - by drawnonward

  In an iPad application with a UINavigationController, everything works in portrait mode but in landscape mode the back button sometimes only goes back half a level. That is to say, on the first press the title bar animates as if it was popping a controller, and on the second press it animates the content popping. Has anyone found a solution to this? The contradictory solution in this question did not help. I have a shouldAutorotate method in the navigation controller but no others. -(BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)inOrientation { return YES; }

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• Dynamically load nib for iPhone/iPad within view controller

  - by qui

  Hello I have converted an iPhone application using the wizard like thing in XCode into a universal app. It builds fine but obviously looks a bit rubbish in some areas :) I need to load nibs according to which device is being used. I dont wish to create my view controllers using initWithNib as I already have code to create the controllers with some data (initWithMyLovelyData) which doesnt do anything to do with nib loading. I know to find out the device you use UI_USER_INTERFACE_IDIOT() so I tried overriding the initWithNibName within the actual view controllers themselves, assuming they get called internally somehow. But it's not working as I guess I am unsure of the syntax. I have tried if(ipad..) self = [super initWithNibName:@"MyIpadNib" bundle:nibBundleOrNil]; And that doesnt work :/ EDIT - I know I have massively edited this, made my question a bit more specific after doing some more research - apologies!

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• Undo "Upgrade Current Target for iPad?

  - by Moshe

  I've upgraded current Target for iPad and I dodn't like the result. Now, i've tried to downgrade by deleting files but it's not working. Help! Do I need to change project settings? Does XCode keep a backup of the project? What to do... It doesn't run on iPhone anymore... EDIT: The console crash log on the iPhone Simulator: 2010-05-10 00:11:02.455 iDecide[9743:207] Unknown class iDecideAppDelegate in Interface Builder file. 2010-05-10 00:11:02.456 iDecide[9743:207] Unknown class iDecideViewController in Interface Builder file. 2010-05-10 00:11:02.465 iDecide[9743:207] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UICustomObject 0x391eb80> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key viewController.' 2010-05-10 00:11:02.466 iDecide[9743:207] Stack: ( 34047067, 2420679945, 34206145, 215656, 214197, 4551796, 33949999, 4546347, 4554615, 2715730, 2754518, 2743092, 2725503, 2752609, 39038297, 33831808, 33827912, 2719253, 2756527 )

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• Using background-attachment:fixed in safari on the ipad

  - by chris_bcn

  I'm looking to recreate an effect similiar to the popular science app. Basically have one big background image and then have HTML/CSS layer on top of that. When the user scrolls the content, then background-position of the image should remain in place, and not scroll. Obviously in a 'regular' browser I would use background-attachment:fixed, but this doesn't seem to work on the ipad. I know position:fixed doesn't work as you might expect according to safari spec - but is there any way of achieving this?

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• iPad: Show view as Model View

  - by a111

  hi all, i want to show my view as a model view. In iPad there are four method to show the view as modal which is listed 1. Full Screen 2. Page Sheet 3. Form sheet 4. Current Context i use following code to display the view as model -(void)OpenContactPicker { ABPeoplePickerNavigationController *ContactPicker = [[ABPeoplePickerNavigationController alloc] init]; ContactPicker.peoplePickerDelegate = self; [self presentModalViewController:ContactPicker animated:YES]; //[self.modalViewController presentModalViewController:ContactPicker animated:YES]; [ContactPicker release]; } above code open the view in full screen mode but i want to some different. Please suggest how can i show this view as Page Sheet or Form sheet or Current Context

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• What are the Build Settings for a Universal iPhone and iPad Application

  - by McPragma

  What would be the settings to build and have accepted an universal app for both the iPad and iPhone? That is, what would be the settings in Project X Info Build for Architectures [ARCHS] ("Standard(armv6)" or "Optimized(armv6 armv7)" or other) Valid Architectures [VALID_ARCHS] ("armv6 armv7" or other) Build Active Architecture Only (checked or unchecked) and what would we select in the dropdown (Device - 3.2|Distribution|armv?) ? We're either getting warnings at build time that we haven't built for armv7, or the app upload is rejected on account of "The binary you uploaded was invalid. When supporting iPhone, the executable must include support for the armv6 architecture". Thank you for your help.

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• iPad modal form sheet takes up the whole screen anyways

  - by quixoto

  I'm trying to create a form sheet modal on iPad, which should be a 540x620 modal view. I've created a view controller with a NIB file whose view is a 540x620 sized UIView (with stuff on it). I set the modal presentation style to UIModalPresentationFormSheet, and call presentModalViewController:animated: on the current view controller. My view slides in from the bottom, but instead of being a form sheet, it takes up the whole screen (my view elements are all anchored in the top left of the screen). Even stranger, when I dismiss it, all the UI that was "underneath" it, is all re-layed out to be in the center, in approximately a form sheet sized area in the center of the screen. Bizarro! Anyone have any suggestions as to what could cause this behavior? Thanks.

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• UISplitViewCOntroller + TabBarCOntroller + iPad

  - by tek3

  Hi all, I am developing a tab-based iPad application in which corresponding to each tab, I have to show an UISplitViewController . I have done this by adding two navigation controllers to my tabBarController and assigning a subclass of UISplitViewController as RootViewController of both navigationController. And also I have to show both viewControllers(Master and Detail) in both modes(Potrait and Landscape). For this I have constructed a subclass of UISplitViewController in which i am overriding willAnimateRotationToInterfaceOrientation method and setting the frame of both ViewControllers as demonstrated in this link. However i am not able to set both viewControllers correctly.If my app starts in Landscape mode everything displays fine but if i open it in Potrait mode then the orientation of both ViewControllers changes. Sometimes the MasterView occupies the entire screen or sometimes both ViewControllers appear leaving a black line between them and the navigationBar. I have been banging my head over this problem since two days without any success. kindly help..

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• avaudioplayer interferes with mpmovieplayer on ipad

  - by user175826

  my app plays video and audio. however, i have a problem where once i play an audio file using avaudioplayer, the video refuses to play. when i play the video first, everything is fine. but if the audio is played first, any time i try to play the video it simply pops up the video player but will not play the actual video (you can use the scroller to go to any point in the video, but no playback will happen). this issue does not come up on the iphone, nor on the ipad simulator. clearly there is some resource conflict here, probably related to the audio, and i'd welcome some input on how to address it.

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• Core Data iPad/iPhone BLOBS vs File system for 20k PDFs

  - by jamone

  I'm designing an iPad/iPhone app using core data. The main focus of the app is sorting and viewing up to 20,000 PDFs They are ~200KB each. Typically its best to not store BLOBS in a DB, but for desktop systems I've typically seen it said that if the blobs are < 1 MB then its fine to use the DB. Any considerations I should take into count? If I store them in the file system can I store them all in one directory and not have performance issues (I won't need to ever get a directory list since I'd store each's path in the DB)? Should I divide them among a handful of directories? If so is there a good rule on # of files per dir?

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• Hide Address bar for Xpages Mobile Web Application on Ipad (iOS5) and Mobile safari (v5.1)

  - by prasad katankot

  With reference to the question I asked couple of days back, it seems to me that address bar cannot be hidden from a xpages mobile web application when it is launched from a href link. Choice is limited to href as "location.assign" or any javascript will not work on mails accessed by lotus traveller. I tried almost 20 different variations published by other experts to hide address bar and none seems to work. Am I wrong in stating that "it is not possible to hide address bar in Xpages mobile web application on ipad when not launched from home screen"?

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• Testing MPMoviePlayerViewController in iPad simulator

  - by hgpc

  I have a view that shows a MPMoviePlayerViewController modally. When testing it in the iPad simulator it works well on the first try. If I dismiss the video and then show the view again, the player only plays the audio, but not the video. Is this a simulator quirk or am I doing something wrong? Here's my code: - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; MPMoviePlayerViewController* v = [[MPMoviePlayerViewController alloc] initWithContentURL:url]; [[NSNotificationCenter defaultCenter] addObserver:self selector: @selector(playbackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification object:v.moviePlayer]; [self presentMoviePlayerViewControllerAnimated:v]; [v release]; } -(void) playbackDidFinish:(NSNotification*)aNotification { MPMoviePlayerController *player = [aNotification object]; [[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerPlaybackDidFinishNotification object:player]; [player stop]; [self dismissMoviePlayerViewControllerAnimated]; }

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• Core Plot on iPad Runs with Debugger, not Standalone

  - by phantomdata

  Hey guys, Thanks to Ole Begemann, I spent yesterday digging around in Core Plot to explore adding graphing to an iPad application that I've been working on. I was fairly satisfied with it, and wanted to show it off to a friend of mine - so I stopped the debugger, took the device off the dock, handed it over to my friend and pushed the icon. Lo, it started and then immediately crashed. I figured that it was using the release profile, and on a whim went ahead and compiled and ran (through the debugger) under the release profile instead of the debug. As expected, it crashed right away with EXC_BAD_ACCESS. I have added the relative path to the core plot to Release configuration and -all_load and -ObjC to the "other" linker flags - just like in the debugger profile and googled all around. IT seems that most people with this issue have forgotten to add the linker flags. Does anyone have any suggestions for next steps in figuring out this issue?

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• Porting iPhone app to iPad fails to sign?

  - by mobibob

  I am able to create a new application profile targeted for my iPad, however, when I convert from iPhone to "Universal" device, I am getting an error in signing. [BEROR]Code Sign error: a valid provisioning profile matching the application's Identifier 'rfc1034identifier' could not be found Also note: I am able to run it in the simulator (which does not require signing). It is a very old application ~OS version 2.x or 3.1 that had SDK problems which required more manual process to get the signing code into the build settings, so I would not be surprised if there is some residual foo in the build settings.

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• How do I get toolbars on UISplitView detail & root views?

  - by Gerry

  I'm porting my iPhone app to iPad. I have a bunch of detail views that derive from UIViewController and implement UITableViewDelegate. (Basically TableViews but not derived as such). The old app used TabBar, but now I'd like to use SplitView with toolbars on the Detail and Master views. How do I enable a toolbar on my UIViewController inside a UISplitViewController? I'm not using Interface Builder here, just code. @interface HeadlineViewController : UIViewController { UITableView *tableView; NSMutableArray *bullIds; UIActivityIndicatorView *prog; } Thanks,

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• iphone/ipad orientation handling

  - by Mark

  This is more of a general question for people to provide me guidance on, basically Im learning iPad/iPhone development and have finally come across the multi-orientation support question. I have looked up a fair amount of doco, and my book "Beginning iPhone 3 Development" has a nice chapter on it. But my question is this, if I was to programatically change my controls (or even use different views for each orientation) how on earth to people maintain their code base? I can just imagine so many issues with spaghetti code/thousands of "if" checks all over the place, that it would drive me nuts to make one small change to the UI arrangement. Does anyone have experience handling this issue? What is a nice way to control it? Thanks a lot Mark

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