iphone

Core Data, try to use NSPredicate to filter a toMany relationship set but get the "to-many key not allowed here" error

Here is the model I have: http://www.girardet.ch/model.png My goal is to retrieve all the Quotes with these criterias: belong to a specific theme : the name_en attribute of Themes order by relevancy filtered by Authors (with the alias attribute of Authors) Here is my code: NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init...

How can I get an NSNumber without performing alloc on it, so it will respond to initWithInt?

My understanding is that a 'convenience' method such as [nsnumber initWithInt] should create a copy of the indicated class, initialized to the desired value. minutesLeft=[NSNumber initWithInt:((timeLeft)%60)]; Timeleft is an integer, so initWithInt should be working, and the result should be that minutesLeft (a property set to retain)...

iPhone Formatted Strings

I would like to be able to format a string in a label or textfield so that i can change the font color and size of certain keywords. does anyone know how to do this? is it possible to find the actual physical dimensions of a CharcterSet as well? ...

Displaying a view from an arbitrary method on iPhone

I'm pulling together a few utility methods for testing and I'd like to be able to pop up a view from within an arbitrary method - one that doesn't necessarily know about any UIViewControllers or windows. Is this possible? For example I'm preparing a custom location manager shim so that I can manually inject location data when I'm testin...

CALayer w/ Animation as UIViews layer

I have a UIView & I want that view's layer to be a continuously looping animation but I'm having some trouble getting started. I have the following in my view subclass: + (Class)layerClass { return [CALayer class]; } Then in my viewController I have: CAGradientLayer *gradient = [CAGradientLayer layer]; [gradient setColors:[NSArray ...

unrecognized selector sent to instance

I added an index search to a core data backed UITableView. the search works fine, however after navigating back to the tableView I get this error: -[NSSQLRow controllerDidChangeContent:]: unrecognized selector sent to instance 0x815edf0 I can post more code if this is too little information to go on. thanks for any help ...

Loading BLOB objects into an array in iPhone

Hello Everyone, I need to populate an array with BLOB type data retrived from SQLite DB.At present i am using NSData to display the image,but i want to put the image in an array and display it in the UITableView How can i do this,please help me ...

Is it ok to cast a NSdictionary object to NSMutableDictionary?

Is it ok to cast a NSdictionary object to NSMutableDictionary? NSDictionary *dict; NSMutableDictionary *mDict = (NSMutableDictionary *)dict; Tried this and it worked fine. ...

table reloadData not called

I have a viewcontroller which contains a tableview. I call another view via pushViewController. When I get back to my original viewController I hope to redraw the table, but viewWillAppear is never called. Any other ideas? ...

pushViewController memory leak

Hello everyone, I have following code, instrument indicate that the pushViewController method has 32 bytes memory leak on device. Could you please kindly help check what rule I break? Should I change some "retain" to "assign" for declaration? Thanks in advance! @interface GuideNewsViewController : UIViewController <UITableViewDataSourc...

Not able to build xAuthTwitterEngine Demo

Hi, Im trying to get the xAuthTwitterEngine Demo to run on Iphone simulator 3.0. I changed the Base SDK in Project settings to Iphone Device 3.0 and Iphone OS deployment Target to Iphone OS 3.0 But my build fails with 18 errors. I dont understand why. It has something to do with libOAuth.a and OAtoken. Can someone help me out here? Than...

app crashing on device

the app I've installed on an iPhone 3G device periodically crashes. I'm wondering if it's the device or the code. the code works fine on the simulator. I have other apps from the app store that do the same thing. e.g. the stackoverflow app - whenever I do a search the app crashes. I've even had the iPod app crash too. I've restored th...

iPhone NSUserDefault with Cocos2D

Hello. I've been working on a game for a bit, I'm now trying to get it working with OS4+. I'm struggling with saving data, my method worked perfectly for OS3. I have a singleton: #import "GameState.h" @implementation GameState @synthesize gStarted; @synthesize gLevel; static GameState* _sharedGameState = nil; +(GameState*)shared...

memory leak discovered MKMapView

I have NSAutoreleasePool leaked object on a MKMapView. should I be concerned about this? I can't seem to get rid of it. I also noticed that the same leak occurs in apple's CurrentAddress sample code app link text thanks for any help ...

Need a solution to convert and store date/time in correct local time compared to device timezone

Hi Ok, I am not sure how to ask this question so that it can be understood... I need to store some schedules on a server (Ruby on Rails) from a iPhone. On the iPhone device the time is relative to the device timezone settings, but on the server I need to store the data in the servers local timezone correctly so that the scheduled event...

Image cannot be zoomed in out when loaded into UIWebView

Hi, I have an image encoded in BASE64 which I retrieve from a server and than load into a UIWebView with : [webViewer loadData:[NSData decodeBase64ForString:imageData] MIMEType:@"image" textEncodingName:@"ASCII" baseURL:nil]; The image loads fine but when the image is bigger than my webviewer, the user cannot zoom in and out by pinch...

learn iphone & objective c

Hi, well i have search a lot for iphone material to get started , but i found most of the stuff that divided either in iphone development or in learning objective C only. Can someone please send me links/ebooks/articles/videos where once can learn objective c and iphone together ? ...

How to request and receive a custom generated XML File?

Hey guys, I would like to create an app for iPhone which should be able to connect to a server and download an xml file. The file should be freshly generated from a database every time it is requested. As an example, imagine an app that recommends books to the user, where the recommendations are generated by the server upon each reques...

Mapkit showing annotation region

Hi, I have a MKMapView with several annotations. These annotations differ from varios location all over Sweden. What I want to do is to zoom the map so all annotations show. I do not want to position the map to my position (although I do want to show it), but want all annotations to show and center the map according those locations. I...

NSFileManager in document folder

hi there, i am trying to zip a file into a subfolder in my iphone app. NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *dir = [path objectAtIndex:0]; NSString *storeunzipfiles = [dir stringByAppendingPathComponent:@"/MyFolder"]; if (![[NSFileManager defaultMa...