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  • Custom inputAccessoryView push my UITableView first row partially off the screen

    - by TonyMocha
    Hi For my scenario, I have a UITableView with a UITextField for the first row. While I try to set custom toolbar for keyboard with UITextField.inputAccessoryView, it pushed my first row of textfield partially off the screen. This is not happening if I avoid adding the toolbar. Refer screen shot below: I tried with NSNotification with keyboardWillShow by reposition to first row of the tableview, but it just look awkward for the table pulling out and in. It might be something to do overriding UITableView/UIScrollView, but I am out of idea how to do this. Would like to know how you guys resolve this. Thanks you!

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  • "incomplete universal character name" with stringWithUTF8String

    - by Nasser
    hi, when i try to convert form utf-8 string to NSString like so: NSString *s = [NSString stringWithUTF8String:"\U0627\U0644\U0641\U0631\U0646"]; NSLog(@"%@", s); i get the compile error: incomplete universal character name note that it sometime just works fine: NSString *UAE = [NSString stringWithUTF8String:"\U0627\U0644\U0641\U0631\U0646"]; NSLog(@"%@", UAE); and the output: ???????? so why is that happening? please help.

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  • NSTableview objectAtIndex error

    - by Matt S.
    I followed the guide here, but for some reason, the table view shows this in the console when I attempt to scroll through it: -[NSCFString objectAtIndex:]: unrecognized selector sent to instance 0x100227710

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  • Objective C Naming Convention for an object that owns itself

    - by Ed Marty
    With the latest releases of XCode that contain static analyzers, some of my objects are throwing getting analyzer issues reported. Specifically, I have an object that owns itself and is responsible for releasing itself, but should also be returned to the caller and possibly retained there manually. If I have a method like + (Foo) newFoo the analyzer sees the word New and reports an issue in the caller saying that newFoo is expected to return an object with retain +1, and it isn't being released anywhere. If I name it + (Foo) getFoo the analyzer reports an issue in that method, saying there's a potential leak because it's not deallocated before returning. My class basically looks like this: + (Foo *) newFoo { Foo *myFoo = [[[Foo new] retain] autorelease]; [myFoo performSelectorInBackground:@selector(bar) withObject:nil]; return myFoo; } - (void) bar { //Do something that might take awhile [self release]; } The object owns itself and when its done, will release itself, but there's nowhere that it's being stored, so the static analyzer sees it as a leak somewhere. Is there some naming or coding convention to help?

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  • How do I change the background image of my iPhone app?

    - by alJaree
    Hello I have looked around and found some code which so called chooses an image from an array of image objects, but cant find an explanation. I would like to make my app have a background image and the user can select next and previous buttons to scroll through some full screen images, setting them as the background image as they scroll. I know how to do this in java, but cant seem to do it for this app. How or what code is linked to a next button to grab the next image in the array and reverse for the back button? Then that needs to be displayed obviously. I have used a layered architecture with a MVC style approach but cant seem to put it together with Objective-C. Would the buttons call the appropriate methods of the so called delegates, which the delegates handle fetching and returning the Images? Would the buttons use the returned images and actually handle the redrawing? I would really appreciate the help. Regards Jarryd

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  • Applying transformations to NSBitmapImageRep

    - by Adam
    So ... I have an image loaded into an NSBitmapImageRep object, so I am able to examine the contents of specific pixels via a two dimensional array. Now I want to apply a couple of "transformations" to the image, in preparation for some additional processing. If I was manipulating the image manually, in Photoshop, I would: Rotate the image Crop a portion of it and discard the rest Apply a "threshold" transformation (which essentially converts the image to black and white, based on the threshold value I provide) Resample the image to shrink it down a bit (which, although losing some image quality, will speed up the subsequent processing) (not necessarily in that order) Are there objective C methods available to facilitate these specific image manipulations, with the data in the NSBitmapImageRep object? If so, can someone point me to some good examples?

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  • UITableView does not scroll to cell

    - by Sheehan Alam
    I am trying to scroll my tableview to the 2nd cell: [self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:1 inSection:0] atScrollPosition:UITableViewScrollPositionNone animated:NO]; I get the error: *** Terminating app due to uncaught exception 'NSRangeException', reason: '-[UITableView scrollToRowAtIndexPath:atScrollPosition:animated:]: section (1) beyond bounds (0). ' My tableview has 30 cells that are appearing with no sections.

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  • string or nsstring with string

    - by joels
    Lets assume myProp is @property (retain) NSString * myProp and synthesized for us.... self.myProp = @"some value";//string literal? self.myProp = [NSString stringWithString:@"some value"]; Is there a difference here? Is the first one a string literal that doesnt get autoreleased or is it just in memory for it's current scope and I dont have to worry about it?

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  • Can't find .js file in my mainBundle?!

    - by Nic Hubbard
    This is driving me crazy as I cannot figure out what in the world is going on. I load up files form you main bundle all the time, xml files, html files, etc. But, now I am trying to get the contents of a javascript file but it can never find it. I am using: NSData *jsData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"global" ofType:@"js"]]; if (jsData) { NSLog(@"%@", jsData); } else { NSLog(@"Can't find file"); return; } Even checking the [[NSBundle mainBundle] pathForResource:@"global" ofType:@"js"] string returns null. My globaly.js file is in my Resources folder, the exact location where my other files are location that work totally fine using the above method. Why can't it find my js file?

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  • Complex nib is slow to load

    - by Dan Ray
    I'm looking for advice about a nib that's very slow to load. It's big and complex, with lots of subviews and doodads. When I fire my UINavController to push it, it's noticeably laggy (maybe almost a second) on my 3G. It sits there with the table cell selected and nothing else happening for long enough to make you wonder if it's broken. I wonder about pre-loading it in another thread while the user is on the previous view. I could probably fire the selector in the background with a delay in the previous view's viewDidAppear, and then keep it in a property until push time comes. Thoughts?

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  • Do, custom fonts work in UITextView that was loaded in cocos2d layer ?

    - by srikanth rongali
    Do, custom fonts work in UITextView ? I loaded UITextView *textView in cocos2d layer. And I trying to set the font of the text as Copperplate Gothic Bold. I downloaded the font file Coprgtb.TTF. But, the text is not adjusting to this font. The system fonts are working, but the custom fonts are not working ? I added the font file in resources folder. what can I do to make them work ? Thank You.

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  • Sending an image in a faceless email

    - by anurag
    I am trying to send a faceless email (sending an email without showing the interface), using the code below. I also want to attach an image to this email. Is this possible? - (void) sendEmailTo:(NSString *)toStr withSubject:(NSString *)subjectStr withBody:(NSString *)bodyStr { NSString *emailString=[[NSString alloc] initWithFormat:@"mailto:?to=%@&subject=%@&body=%@", [toStr stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding], [subjectStr stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding], [bodyStr stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]]; [[UIApplication sharedApplication] openURL:[NSURL URLWithString:emailString]]; [emailString release]; }

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  • @property, ok in this situation?

    - by fuzzygoat
    I am still finding my feet with objective-c and was wondering if its acceptable to use @property on the two objects below. #import <UIKit/UIKit.h> #import <MapKit/MapKit.h> @interface MapViewController : UIViewController <MKMapViewDelegate, CLLocationManagerDelegate> { CLLocationManager *locationManager; IBOutlet MKMapView *googleMapView; } @property(nonatomic, retain) CLLocationManager *locationManager; @property(nonatomic, retain) MKMapView *googleMapView; @end One of my reasons for using them is so that I can use the setters in my viewDidUnload, I seem to be using @property a lot and was just wondering if the use in this situation is acceptable? -(void)viewDidUnload { [self setLocationManager:nil]; [self setGoogleMapView:nil]; [super viewDidUnload]; } much appreciated Gary

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  • write to xml file using objective c

    - by Mith
    Hi, ok, I managed to read from xml file using NSXMLParser but now i don't know how to write to xml file. I have a xml file , say <?xml version="1.0" encoding="UTF-8"?> <root> <user id="abcd" password="pass1"/> <user id="efg" password="pass2"/> </root> Now when a new user enters details, I want to store them in a new tag.. lets say like, the id is "hhhh" and password is"pass3" I want to add a new tag with attributes as such <user id="hhhh" password="pass3"/> to the xml file. How should I do this. Please explain in an elaborate way . I am a newbie here. Any links to tutorials or examples will be much helpful. Thanks

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  • How can we make the text to appear in landscape mode in cocos2d by using UITextView ?

    - by srikanth rongali
    I want a UITextView in cocos2d. I used in init method UITextView *textView = [[UITextView alloc] initWithFrame:CGRectMake(0,0, windowSize.height/2,windowSize.width/2)]; textView.backgroundColor = [UIColor clearColor]; textView.text = @"I am First enemy"; [textView setEditable:NO]; [[[CCDirector sharedDirector]openGLView]addSubview:textView]; the orientation is [[CCDirector sharedDirector] setDeviceOrientation:CCDeviceOrientationLandscapeLeft]; I need the text to appear in landscape mode, but I am getting the text in following way. How can I make the text to appear in the landScape mode. I am working in cocos2d. CanOI scroll the text ? What should i add to make the text scroll up and down. Thank you.

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  • Returning back to the viewController with segues

    - by umar
    This is my Hierarchy Navigation Controller --> Login Controller View --- > Register Controller View --> My Small Internal LeaderBoard View Now I am using segues (Push) to go to either LoginControllerView or LeaderBoardView Once I am on LoginControllerView and then RegisterControllerView I am using this code [self dismissViewControllerAnimated:YES completion:nil] However instead of returning me to LoginControllerView it is returning me back to NavigationController. How can I return to my LoginController

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  • How to display complex object in debugger?

    - by 4thSpace
    I'd like to display the contents of the property myarray, from the following singleton: [Session sharedManager].myarray I've tried these: po [Session sharedManager]. myarray po [[Session sharedManager] myarray] but always get this error: A syntax error near end of expression. Any suggestions?

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  • How To load scroll view of some place directly

    - by ratnasomu
    hai to all , I have added a scroll view of content size 320,1000 to my view its working properly and loading with starting content of scroll view. But,now I want it like showing some place of it when its getting load. that is it shows directly some place of it instead of starting of the content ... Help me it is urgent .. I have tried with [scrollView1 scrollRectToVisible:CGRectMake(60, 300, 240, 40) animated:NO]; [scrollView1 zoomToRect:CGRectMake(60, 300, 240, 40) animated:YES]; but its not working could any one help me .. Thanks

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  • [MAC] Using a proxy for NSURLConnection

    - by SideSwipe
    Is there any way to get the content of a webfile (namely a .html Document) using a proxy, which is not defined in the system settings? I know that NSURLConnection is the right way to download a web file into a variable and not into a file (for which we should use NSURLDownload), but I don't find an way to use a proxy for it. Are there some inofficial APIs, Librarys or Classes or such I could use for what I want to do? I'm not that pro in Mac Programming, so im searching for something more or less simple to do for me plz. SideSwipe

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  • I could not understand where the memory is leaking in my code ?

    - by srikanth rongali
    I have the following code. I do not understand the problem in it. Whenever I include this class in my class the code is going to infinite loop. I could not get where I am wrong. please help me. Just point the errors in the code. #import "readFileData.h" #import "DuelScreen.h" @implementation readFileData @synthesize enemyDescription, numberOfEnemies, numberOfValues; @synthesize enemyIndex, numberOfEnemyGunDrawImages, numberOfEnemyGunFireImages, numberOfEnemyDieImages; @synthesize countDownSpeed, enemyGunDrawInterval, enemyGunFire, enemyRefire; @synthesize enemyAccuracyProbability, enemyGunCoordinateX, enemyGunCoordinateY; -(id)init { if( (self = [super init]) ) { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *path = [documentsDirectory stringByAppendingPathComponent:@"enemyDetals.txt"]; NSString *contentsOfFile = [[NSString alloc ]initWithContentsOfFile:path]; NSArray *lines = [contentsOfFile componentsSeparatedByString:@"#"]; numberOfEnemies = [lines count]; int nEnemy; nEnemy = 0; NSArray *eachEnemy=[[lines objectAtIndex:nEnemy] componentsSeparatedByString:@"^"]; DuelScreen *enemyNumber1 = [[DuelScreen alloc] init]; NSLog(@"tempCount value in: readFile: %d", enemyNumber1.tempCount); enemyIndex = enemyNumber1.tempCount - 1; countDownSpeed = [[eachEnemy objectAtIndex:0]intValue]; enemyGunDrawInterval = [[eachEnemy objectAtIndex:1]floatValue]; enemyGunFire = [[eachEnemy objectAtIndex:2]floatValue]; enemyAccuracyProbability = [[eachEnemy objectAtIndex:3]floatValue]; enemyRefire = [[eachEnemy objectAtIndex:4]floatValue]; numberOfEnemyGunDrawImages = [[eachEnemy objectAtIndex:5]intValue]; numberOfEnemyGunFireImages = [[eachEnemy objectAtIndex:6]intValue]; numberOfEnemyDieImages = [[eachEnemy objectAtIndex:7]intValue]; enemyGunCoordinateX = [[eachEnemy objectAtIndex:8]floatValue]; enemyGunCoordinateY = [[eachEnemy objectAtIndex:9]floatValue]; enemyDescription = [eachEnemy objectAtIndex:10]; } return self; } @end

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  • Objective-C retain counts clarification

    - by Tom
    Hey, I kind of understand what's retain counts for. But not totally. I looked on google a lot to try to understand but still I don't. And now I'm in a bit of code (I'm doing iPhone development) that I think I should use them but don't know totally how. Could someone give me a quick and good example of how and why using them? Thanks!

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  • Make a table row's text editable immediately

    - by Ricky
    I have an NSTableView in my user interface, where new rows are added when the user presses a button or keyboard shortcut. Each row consists of two text cells (the table is comprised of two columns). Is there a way to immediately select the first text cell of a new row which is added? So, basically, I would like the user to be able to press the button, adding a new row to the table and then having it editable straight away.

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  • How to take a NSString such as, "0+1+2", get the sum of those and create new string. Obj-C

    - by Ace Legend
    Alright. My app has a text field and next to it are two buttons (Plus button and Equals button). When you press the "Plus" button, it takes the text inside of the textField and adds a "+" to it. Code below: - (IBAction)plusButtonPressed:(id)sender { NSString *plusString = @"+"; NSString *inputString = carbsField.text; NSString *outputString = [NSString stringWithFormat:@"%@%@",inputString,plusString]; NSLog(@"%@",outputString); [carbsField setText:outputString]; } I will eventually make that more intelligent so that I can't put two pluses or whatever. Anyway, then I want the equal button to take whatever is in the textField, which should look something like: "23+54+2.2" and get the sum of those values. I believe I know how to take an Integer and make it a String, but I want to verify it: int *value = 56; NSString *string = @"%d",value; Well, if anyone can show me how to do this, I would be very appreciative. Thanks. EDIT At the moment, I have not tried anything. This is because I do not know where to start. I have an idea of what to do, but I do not know how to execute it. I believe I need to get all characters before a "+" convert them into int and then get the sum of some array of those values.

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