iphone

cellForRowAtIndexPath called before viewWillAppear iPhone SDK 3.2 plus

After upgrading my SDK version I noticed that cellForRowAtIndexPath is always called prior to viewWillAppear. Previously the order of execution was opposite: viewWillAppear would always be called prior to cellForRowAtIndexPath. Because my application logic often used viewWillAppear to initialize objects that are subsequently used in cell...

Show UIAlertView on splash screen

Hi I used to show a splash screen which in background load some data from web, I also check that if the location of the user is changed from one city to another city I want to show in alert to the user with the message that you are now in "CityName" would you like to see data from this city? I have tabbed application and I have presen...

popToRootViewController crash

Hi all, I'm facing a problem in popping to rootViewController. On my rootViewController, I'm presenting a modalViewController then dismissing it to push another viewController on self.navigationController. Here, I'm able to see the navigation backbarbutton to be pointing to my rootViewController and loads it properly when it's pressed...

Custom UIAlertView moved up after upgrading to ipad/universal app

So after upgrading to a universal app, one of my UIAlertViews shifted up, but only for the iOS4.0. Before: . After (only on iOS4.0): . I looked into alert.transform = CGAffineTransformTranslate( alert.transform, 0.0, -100.0 ); to shift it back down, but that does absolutely nothing. Does anyone else have this problem? Thanks. ...

Need to change the background color of [UIButton buttonWithType:UIButtonTypeRoundedRect]];

I am trying to change the background color of button in a UITable view. [UIButton buttonWithType:UIButtonTypeRoundedRect]]; [self.deleteButton setTitle:@"Delete Contact" forState:UIControlStateNormal]; [self.deleteButton addTarget:self action:@selector(deleteContact) forControlEvents:UIControlEventTouchUpInside];...

NSNumber Warning when using setter but code seems to work OK - Passing argument 1 makes integer from pointer without a cast

I have an object Foo that has an NSNumber property which is declared like this: @property (retain) NSNumber *siteID; and @synthesized. When I I do something like this: Foo *myFoo = [[Foo alloc] init]; NSNumber *newNumber = [[NSNumber alloc] initWithInt:42]; myFoo.siteID = newNumber; [newNumber release]; The assignment on line 3 th...

after [self.delegate flipsideViewControllerDidFinish:self]; do something

Once the mainviewcontroller is loaded via [self.delegate flipsideViewControllerDidFinish:self]; I want the app to do a message box what void do i need to use as - (void)viewDidLoad { does not work thanks Mason ...

UILabel with reflection

Is there a way to create a reflection on a UILabel? I know how to do it in a UIImageView, but it's different. Thanks ...

Error from Debugger: Previous frame inner to this frame (gdb could not unwind past this frame)

I am getting the following debugger error when I encounter a breakpoint on the device: Error from Debugger: Previous frame inner to this frame (gdb could not unwind past this frame) This occurs when the app hits a breakpoint. If I hit the continue button in the debugger, it continues happily until the next breakpoint, when it pops up ...

iPhone "cannot play" .mp4 H.264 video file

Hi folks, I'm trying to setup a simply mobile page for a client with a link to an .mp4 video file. Lke so: <a href="My_Video_File.mp4" target="_blank">Watch MP4 Video</a> And then I've obviously got my video file sourced properly and the .mp4 has the following characteristics: Dimension: 480 * 272 Codecs: AAC, H.264, MPEG-4 SDSM, MP...

UITableView scrollToRowAtIndexPath: help

I have a regular UITableView without any sections set up. I'm trying to automatically scroll to a row at a given index path like so... [table scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:[self getIndexToShow] inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:NO]; But when ran I get this error... 2010-07-19 18...

gcc-4.2 failed with exit code 1 in Xcode

I'm working with Xcode 3.2.3 and iOS 4.0.1 and I have downloaded an open source iPhone game to learn from but without editing anything I tried to run it in the simulator and it throws this error message: ProcessPCH /var/folders/-r/-r6hd0CEEASnoGYBU9KSlk+++TI/-Caches-/com.apple.Xcode.501/SharedPrecompiledHeaders/catchcat_Prefix-crjs...

model and view in a simple strategygame with cocos2d&cocoa touch

Hey i need some general advice on how to structure my project. i am trying to make a simple strategygame where some object move around in a "worldspace" and youve got several different tactical views, which show diffent areas of the game. nothing special. but since i'm a rather unexperienced programmer, some things are not quiet clear to...

iphone: Button/Image on top of TabBarController?

When in the Camera Roll section of the Photos app, you can click the top right button to edit the photos. This replaces the bottom tab bar with three new buttons. I would like to do something similar, but I cannot get my buttons to be on TOP of the tab bar. Is there a way to specify the layer order? Or do I need to do something diffe...

Wait cursor in an iPhone app

Is there an easy way to display a wait animation in the iPhone sdk. I have a screen that will take a few seconds to load, and I'd like to give the user some feedback that something is happening. Any suggestions? ...

iOS: Problems with a button which is on a UIView located in a UINavigationView which is in a UITabView

Hi, I have a following application structure: Tabs - Tab1 - 5. On on of the Tabs I have a navigation view and instead of having a tableview like in following tutorial: http://broadcast.oreilly.com/2009/06/tab-bars-and-navigation-bars-t.html I would like to have buttons on a page instead of a table view just like in this tutorial: h t ...

completing example of CMMotionManager example listing 4-9 and 4-10

http://developer.apple.com/iphone/library/documentation/EventHandling/Conceptual/EventHandlingiPhoneOS/MotionEvents/MotionEvents.html listing 4-9 and 4-10 i tried to run the code but with no success, i run into a problem with gyroHandler. can someone post an example of a completed code, without much changing the sample listings? meaning...

Issue using Variables to load PDF File in iphone SDK

Hi all, I'm trying to load a PDF in my App: Using this works fine pdfURL=[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource: @"myFile" ofType:@"pdf"]]; controller.pdfUrl = pdfURL; [self.navigationController pushViewController:controller animated:YES]; [controller release]; Howev...

objective-c round number to nearest 50

How can I round a number to the nearest X value (for example 50) i.e 47 would be 50 24 would be 0 74 would be 50 99 would be 100 etc... I really have no idea where to start looking into how to do this... P.S. Im using cocoa-touch for the iPhone Thanks a lot Mark ...

Unable to sign iPhone app with distribution certificate

I have struggled every step of the way with the process of submitting to the appstore. I am now at the point where it asked if I wanted to use the distibution certificate I have in Xcode. I selected yes and I get an error as below. What is the problem with this? please help. I have stuggled more to setup this process than to develop my ...