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  • Trying to debug a 'Assertion failure in -[UIActionSheet showInView:]' error....

    - by dsobol
    I am working through "Beginning iPad Application Development" and am getting hung up in Chapter 3 where I have created a project that works with an Action Sheet. As it stands now, my application loads into the simulator just fine with no errors that I am aware of, but as it runs, it crashes with the following errors showing up in the debugger window: 2010-05-31 19:44:39.703 UsingViewsActionSheet[49538:207] * Assertion failure in -[UIActionSheet showInView:], /SourceCache/UIKit_Sim/UIKit-1145.66/UIAlert.m:7073 2010-05-31 19:44:39.705 UsingViewsActionSheet[49538:207] * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid parameter not satisfying: view != nil' I am sure that this is the block where the app breaks based upon my use of breakpoints. //Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { UIActionSheet *action = [[UIActionSheet alloc] initWithTitle:@"This is my Action Sheet!" delegate:self cancelButtonTitle:@"OK" destructiveButtonTitle:@"Delete Message!" otherButtonTitles:@"Option 1", @"Option 2", @"Option 3", nil]; [action showInView:self.view]; // <-- This line seems to trigger the crash.... [action release]; [super viewDidLoad]; } Am I missing something obvious, or is there more to the problem than is shown here? I have looked at the abstract for showInView and cannot divine anything there yet. I appreciate any and all asssitance. Regards, Steve O'Sullivan

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  • Tablet interface for the physically disabled?

    - by Glenn
    My sister has Cerebral Palsy, which in her case means she has only gross motor control and her speech is slurred. Implications should be obvious: traditional computer/phone/tablet interfaces won't work for her and she can't speak clearly enough for speech recognition software to help her at all. She enjoys reading but has difficulty holding the book and/or turning a page. There are a few options for helping her use a computer, but nothing for tablets or eReaders. That's where you come in. I would like to make (or buy, if such a thing exists) a better interface to an Android tablet that would work for someone with little to no physical dexterity or speech ability. I'd also be interested in work on the Kindle or iPad, but I'm most familiar with Android so I'm starting there. I know Android has Bluetooth capability. Is it possible to interface a joystick to control the Android device? By "control", I mean the entire operating system - selecting an app, launching it, controlling the menus, etc. I want to give her control over the whole thing, not just a specific app. On a PC this can be accomplished by creating a generic USB HID interface and an arcade joystick to move the mouse over the screen and click on thigns. Is it possible to do something like that in Android? Any help you can offer would be greatly appreciated. Thanks!

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  • EXC_BAD_ACCESS on button press for button dynamically added to UIView within UIScrollView

    - by alan
    OK. It's an iPad app. Within the DetailViewController I have added a UIScrollView through IB and within that UIScrollView I have added a UIView (also added through IB) which holds various dynamically added UITableViews, UILabels and UIButtons. My problem is that I'm getting errors on the UIButton clicks. I have defined this method: - (void)translationSearch:(id)sender { NSLog(@"in transearch"); [self doSearch]; } This is how I'm adding the UIButton to the UIView: UIButton *translationButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; translationButton.frame = CGRectMake(6, 200, 200, 20); translationButton.backgroundColor = [UIColor clearColor]; [translationButton setTitle:@"testing" forState:UIControlStateNormal]; [translationButton addTarget:self action:@selector(translationSearch:) forControlEvents:UIControlEventTouchUpInside]; [verbView addSubview:translationButton]; Now the button is added to the form without any issue but, when I press it, I am getting an EXC_BAD_ACCESS error. I'm sure it's staring me in the face but I've passed my usual time limit for getting a bug like this fixed so any help would be greatly appreciated. The only thing I can think is the fact that the UIButton is within a UIView which is within a UIScrollView which is within the view controller is somehow causing an issue. Cheers.

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  • Two "Calendar" entries listed on iPad - can't write to calendar using EventKit

    - by Neal
    My iOS app integrates with the device's calendar. On my iPad when I view the calendar app and tap the Calendars button on the top left to choose which calendars to show I see one entry named "Calendar". In my app when I loop through available calendars per the code below "Calendar" is listed twice. One is CalDAV for the type, the other is Local. I'm unable to create calendar entries in one of them, I believe the "Local" one, not sure why. Why do I see "Calendar" listed twice when I do NOT see it listed twice in the iCal app? public static List<string> Calendars { get { var calendars = new List<string>(); var ekCalendars = EventStore.Calendars; if (ekCalendars != null && ekCalendars.Length > 0) { foreach (EKCalendar cal in ekCalendars) { if (cal.AllowsContentModifications) calendars.Add(cal.Title); } calendars.Sort(); } return calendars; } }

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  • quartz2d translating the origin

    - by qwertyp96
    My understanding of quartz2d is that the code CGContextTranslateCTM(context, x, y); translates the coordinate system. I have a quartz2d view with lots of shapes on it, and the user needs to be able to pan around and zoom it. However, when using the CGContextScaleCTM(context, scaleX, scaleY); code, everything scales around the origin, not the center of the viewpoint the user is viewing. My solution to this was to use the following code: CGContextRef context = UIGraphicsGetCurrentContext(); CGContextTranslateCTM(context, 512.0+offset.x, 384.0+offset.y); //(512, 384) is the center of the iPad screen CGContextScaleCTM(context, scale, scale); You can translate around fine, but things still scale into the corner. What's wrong? EDIT: Oh. Wow. Duh. If you move the origin, the shapes move too, so you can't move it relative to the shapes. Now I know what's wrong, but how do I do that?(move the origin independently of the shapes)

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  • UINavigationController + UITableView + UISearchBar + UISplitViewController

    - by ACBurk
    I have an annoying problem. I have an UINavigationController with an UITableView in the Master (Left) pane of my UISplitViewController. When I do normal operations, things push on on to the navigation controller fine. However, when I do a search and push things on, it's like it doesn't account for the space the navigation bar needs. It pushed the new controller on at the very top, then puts the navbar on, overlapping the content! I should add it works fine when doing it in portrait (in the popup menu) and on the iphone. Is this an UISplitViewController bug?

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  • Changing the default UITabBarController background color.

    - by Scott
    Hello, So I have an iPhone application running that is controlled at the highest level by a UITabBarController. It is the default black Tab Bar at the bottom that you see in many iPhone apps. I am kind of new to iPhone SDK programming, and I know I have seen other apps that have their own background color for the Tab Bar at the bottom. I am not sure if they are using this tab bar as I am, as the main controller for their app, but the question applies to this: How do I change the background color of the main UITabBarController in my application? I wanted to change it to a dark shade of green similar to the colors of the navigation bars and labels I have placed in my app. I find it weird how Apple makes it really easy to change the color of Navigation Bars (not controllers), and other things, but when it comes to controllers (in this case a Tab Bar Controller), I cannot find a single way to implement this cleanly and efficiently. Thanks! -Scott

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  • Select row After UIPickerView is loaded

    - by Steve Gibson
    I have an iphone database app that loads a UIPickerView with data from a table. I want to set the selected row to a particular row from the data in another table. for example: Lets say I have a UIPickerView that is loaded with X number of names of the iPhone users friends (the number of names is variable, could be 1 or 1000 and all are entered into the DB by the user). The iPhone user has a preference set that their current best friend is TED. I want the UIPickerView to be position to TED when displayed. Where do I call selectRow? I tried in viewDidAppear but it was never called, in titleForRow which caused all kinds of strange behavior. viewDidLoad and viewWillAppear are out of the question because I don't know what's in the datasource to the picker yet. Thanks in advance.

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  • Objective-C and Android

    - by Tom R
    I've just finished a relatively large project for the Android, and it's left a bitter taste in my mouth with the knowledge that it will never run on one of the most ubiquitous handsets this side of the solar system (the one by that fruity little club). So, for my next project, I want to write it in a way that makes most of the components easily transportable between the iPhone and Android platforms. The way I'm thinking of doing this is by coding most of it in Objective-C, and then adding the platform-specific parts in more Objective-C and Java respectively. On the Android side, this will require using the the NDK. My knowledge of C is good, but my knowledge of Objective-C is close to zero, and I have no desire to learn C++. How sane is the approach above, and is there a better one? Is there any way I can code in Java and still reach the un-hacked iPhone market? And how likely is it that the people I know (iPhone users) will have an Android phone by next year?

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  • Intercept UITableView scroll touches

    - by Jonesy
    Is it possible to control when the UITableView scrolls in my own code. I am trying to get behaviour where a vertical swipe scrolls and a horizontal swipe gets passed through to my code (of which there are many example) BUT I want a DIAGONAL swipe to do nothing, i.e the UITableView should not even begin scrolling. I tried catching it in here - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView but the scrollView.contentOffset.x is always 0 so I cannot detect a horizontal movement. I also tried subclassing UITableView and implementing - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event - (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event etc.. but the UITableView (and I guess it's parent UIScrollView) start to scroll before the touches are notified? To re-iterate, I want the UITableView scrolling to be locked if a diagonal swipe is made, but to scroll vertically normally. (This behaviour can be seen in Tweetie(Twitter) for the iPhone) Thanks for any help!

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  • Unit tests only run automatically when active SDK is "simulator"?

    - by Steve Madsen
    I have followed the instructions Apple publishes for unit testing applications on iPhone and things work great when I set the active SDK to "iPhone Simulator". I have it configured to always build and run my tests as part of building the application itself. Apple implies (by omission) that this should work all of the time, but the tests are skipped when I set the active SDK to "iPhone Device". I am also linking with OCMock, and instead of a failing test, this warning is in the build log: ld: warning: in .../build/Debug-iphoneos/OCMock.framework/OCMock, missing required architecture arm in file It's very nice to make the unit test bundle a dependency of the main application, so these tests run at every build, but its utility is greatly diminished if it doesn't work during device builds. Is this a known, but undocumented, limitation?

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  • Convert db data encoding to UTF-8

    - by lnetanel
    Hi, I use Sql Server 2000 and I inserted some data in hebrew to a table. I need to access this data through an iPhone app using an ASP page that query the table. The problem is that in the iPhone app the Hebrew is shown as strange signs. I think my problem is that the data that is generated from my db isn't in UTF-8 but in USC-2 Any suggestions how to convert the data from my db to utf so it will be readable on the iPhone? 10x.

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  • Authenticating stackoveflow programatically - OpenID

    - by Ben Reeves
    I would like to add up and down voting to my iPhone appilcation - MyStacks, for this I need the to be able to authenticate the user with SO. I'm look at adapting the Twitter-OAuth-iPhone library. However The problem I have is obtaining the consumer and secret key. to use OAuth, do I need to obtain a different key for each provider? In order to obtain a consumer key from google the application needs to have a domain name, but this being an iPhone app of course i don't have one, does this mean that I can't use OAuth? Is there any other way to programatically authenticate SO? Thanks, Ben

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  • entitlements are not valid

    - by Sathiya
    Recently, i have upgraded my iPhone SDK OS from version 2.2.1 to 3.0 version. After that while building my application i get an error the the provisioning profile has expired. So i created a new provisioning profile. Then i made the distribution of my application with the provisioning profile. But i get an error in iTunes while syncing my application into iPhone device. The error message is "The application"iGVA " was not installed on the iPhone because the entitlements are not valid." I checked the code signing Entitlements that contains the correct entitlement plist file. Please suggest me to solve it out. Any help would be appreciated ! Sathiya

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  • arm-apple-darwin9-g++ Bus error problem

    - by overboming
    I want to create a mobilesubstrate plugin for iPhone OS 3.2 or I tried to setup toolchain on the iPad device. I have installed the iphone-gcc_4.2-20090304-1-9_iphoneos-arm package and all the relevant packages from Cydia, but when it comes to compiling the simplest source file shows the following error: arm-apple-darwin9-g++ -I /var/toolchain/sys/ -c -dynamiclib ExampleHookLibrary.mm -o ExampleHookLibrary.o arm-apple-darwin9-g++: Internal error: Bus error (program cc1objplus) Please submit a full bug report. See <URL:http://developer.apple.com/bugreporter> for instructions. make: *** [ExampleHookLibrary.o] Error 1 Is it because the iphone-gcc doesn't yet support this device or am I missing anything here? Thanks.

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  • FBConnect - uploading images to Wall

    - by SteveU
    Hi All, i've configured FBConnect and it uploads to the wall, but what i want to do is take a screenshot and then upload the screenshot to FB. In the below code there is an image but as a url. Can i intersect this and put in my screenshot image? FBStreamDialog *dialog = [[[FBStreamDialog alloc] init]autorelease]; dialog.userMessagePrompt = @"Tell your friends about Fridgit!!:"; dialog.attachment = [NSString stringWithFormat:@"{\"name\":\"Facebook Connect for iPhone\",\"href\":\"http://developers.facebook.com/connect.phptab=iphone\",\"caption\":\"Caption\",\"description\":\"Description\",\"media\":[{\"type\":\"image\",\"src\":\"screenShot\",\"href\":\"http://developers.facebook.com/connect.php?tab=iphone/\"}],\"properties\":{\"another link\":{\"text\":\"Facebook home page\",\"href\":\"http://www.facebook.com\"}}}", self.screenShot]; [dialog show]; } i know all the code is default i haven't edited it yet incase i can't do what i want to do. Cheers

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  • UIImageView "Sprite Movement" How?

    - by Tate Allen
    Hi all, I am trying to make a game for the iPhone/iPod Touch. I am somewhat new to iPhone programming and extremely new to iPhone game programming so try to bear with me if this is a stupid question. How to I make my character, a UIImageView, move to the right or left, along the x axis. Just a simple translation across the screen. This is very frustrating so if you could link me to a tutorial or something like that, it would be much appreciated. Thanks in advance, Tate

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  • How to make a secure login using UDID or device token?

    - by Erik B
    So I'm making an app where I want the users to be able add, edit and rate content, but I do not want to force them to register. Instead I was planning on just using their device id or device token to identify them. I'm planning on making both an iPhone and Android version, so I'm looking for a general solution, but the iPhone version has higher priority, so an iPhone specific solution would also be welcome. The problem is that I don't want just anyone to be able to use my web service by sending a phony device id or someone else's device id. How would the client prove to the server that it is providing the correct device id?

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  • zoomScale for OS 2.0

    - by sasayins
    Hi, Is there any alternative or work around so that I can use zoomScale in Iphone OS 2.0. It seems the property is only available in Iphone OS 3.0 or later? I have two subviews in my UIScrollView and if the first subview reach a specified scale then it will change to the other subview and save the current scale to zoomScale so that the new subview will apply to the previous scale. Like for example in, scrollViewDidEndZooming, scrollView.zoomScale = scale; When I run my app in Iphone OS 2.0, it gives me error saying invalid zoomScale invalid selector. How can I work around this? Thanks.

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  • Can Google App Engine be used for "check for updated" and download binary file web service?

    - by Tofrizer
    Hi, I'm a Google App Engine newbie and would be grateful for any help. I have an iPhone app which sources data from an sqlite db stored localling on the device. I'd like to set up a Google App Engine web service which my iPhone client will talk to and check if there is a newer version of the sqlite database it needs to download. So iPhone client hits the web service with some kind of version number/timestamp and if there is a newer file, the App Engine will notify the client and the client will then request the new database to download which the App Engine will serve. Is it possible to set up a web service in Google App Engine to do this? Could anyone point me to any sample code / tutorials please? Many Thanks

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  • Cocos 2D v1.0.1 : Crash at changing CCMenuItemImage normal image

    - by Max
    I retrieve a crash log file, which, after XCode analysis on my archive show the problematic line of code : Date/Time: 2012-12-08 23:48:08.930 +0100 OS Version: iPhone OS 5.1.1 (9B206) Report Version: 104 Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x00000000, 0x00000000 Crashed Thread: 0 Last Exception Backtrace: 0 CoreFoundation 0x31a4088f __exceptionPreprocess + 163 1 libobjc.A.dylib 0x3188b259 objc_exception_throw + 33 2 CoreFoundation 0x31a40789 +[NSException raise:format:] + 1 3 Foundation 0x374c73a3 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 91 4 Killer 0x0017ed35 -[CCSprite initWithFile:] (CCSprite.m:201) 5 Killer 0x0017e419 +[CCSprite spriteWithFile:] (CCSprite.m:93) 6 Killer 0x00123101 -[Player makeZombie] (Player.m:1363) 7 Killer 0x00105a51 -[PlayScene endOfKilling:] (PlayScene.m:1438) Which clearly indicates the second of the two following lines is crashing: NSLog(@"images %@ %@",self.zombieImage,self.zombieImageDown); [self.characterSprite setNormalImage:[CCSprite spriteWithFile:self.zombieImage]]; I know that the crash seem to happend when the user is touching the corresponding CCMeanuItemImage, is there a problem if the user is touching it, while we change the normal et selected images of it ? Is this the right manner to change its image (i do it several times during the game) ? Thanks for your ideas

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  • UITableView with Shake and play.

    - by avural79
    hi all i am trying to make a musical app for iphone. the app is simple. there is a couple of musical note sample (caf) files. when user taps the predefined positions on uiview(like strings). app plays note sample and add a string value to a nsmutablearray about note. played note lists displays in a table. now i want to add a shake and play mode to app. when user shake iphone, recorded notes start to play from first record to last record and loop again. also if user shake iphone harder notes will plays faster. how can i do that. any idea? thanks

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  • Documents/Images display fine in Simulator, but not on my device

    - by Phamer
    Hello. My application is running fine on the simulator, but not on the device. Basically, any documents from the web (PDF, Word, M4P videos) are working great on the simulator (and can be accessed from Safari on the iPhone). However, running on the iPhone, they don't display anything. Here's some sample code: // Set up the URL documentViewController.documentUrl = [NSURL URLWithString:[NSString stringWithFormat:mobileContentUrl]]; // mobileContentUrl is something like: http://www.myserver.com/pathitem/Video.mp4" and can be accessed from Safari [self.navigationController pushViewController:documentViewController animated:YES]; Within documentViewController I have: - (void)viewDidLoad { [super viewDidLoad]; [webView loadRequest:[NSURLRequest requestWithURL:documentUrl]]; } As I said, works like a charm in the Simulator...What could possibly causing this NOT to work on iPhone? How do I debug the issue???

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  • AudioOutputUnitStart takes time

    - by tokentoken
    Hello, I'm making an iPhone game application using Core Audio, Extended Audio File Services. It works OK, but when I first call AudioOutputUnitStart, it takes about 1-2 seconds. After the second call, no problem. For a game application, 1-2 seconds is very noticeable. (I tested this on iPhone simulator, and iPhone 3GS) Also, if I leave the game for about 10 seconds, first call of AudioOutputUnitStart also takes time. Maybe I have to call AudioOutputUnitStart beginning of the application to prevent the start-up time?

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