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  • How can I get touch co-ordinates in cocos2d?

    - by Nouman
    Hi, I am a newbee in iPhone game development. What I want is that wherever user touches on iPhone screen, where I will display a pic at that place. Can anyone help me how to get co-ordinates of the area everytime when user touches the screen? Regards, Nouman

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  • comparison between point and integer

    - by LawVS
    Right, basically I want to add two numbers together. It's for a working hours calculator and I've included parameters for a night shift scenario as an if statement. However, it now mucks up the day shift pattern. So I want to sort out that if the start time is below 12, then it'll revert to the original equation shown in the code instead of the if statement. -(IBAction)done:(id)sender { int result = [finishHours.text intValue] - [startHours.text intValue]; totalHours.text = [NSString stringWithFormat:@"%d", result]; if (result < 0) { totalHours.text = [NSString stringWithFormat:@"%d", result * -1]; } if (result < 12) { totalHours.text = [NSString stringWithFormat:@"%d", result + 24]; } if (startHours < 12) { totalHours.text = [NSString stringWithFormat:@"%d", result - 24]; }

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  • presentmodalviewcontroller not working properly in Application Delegate in iPhone

    - by sujyanarayan
    Hi, I'm using two UIViewController in Application Delegate and navigating to UIViewController using presentmodalviewcontroller. But Problem is that presentmodalviewcontroller works for first time UIViewController and when i want to navigate to second UIViewController using presentmodalviewcontroller then its showing first UIViewController. The following is the code:- -(void)removeTabBar:(NSString *)str { HelpViewController *hvc =[[HelpViewController alloc] initWithNibName:@"HelpViewController" bundle:[NSBundle mainBundle]]; VideoPlaylistViewController *vpvc =[[VideoPlaylistViewController alloc] initWithNibName:@"VideoPlaylistViewController" bundle:[NSBundle mainBundle]]; if ([str isEqualToString:@"Help"]) { [tabBarController.view removeFromSuperview]; [vpvc dismissModalViewControllerAnimated:YES]; [viewController presentModalViewController:hvc animated:YES]; [hvc release]; } if ([str isEqualToString:@"VideoPlaylist"]) { [hvc dismissModalViewControllerAnimated:YES]; [viewController presentModalViewController:vpvc animated:YES]; [vpvc release]; } } Can Somebody help me in solving the problem?

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  • Creating NSApp inside another nsviewcontroller

    - by DesperateLearner
    I have opened my mac app in a new nsviewcontroller - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { self.masterViewController = [[MasterViewController alloc] initWithNibName:@"MasterViewController" bundle:nil]; [self.window.contentView addSubview:self.masterViewController.view]; self.masterViewController.view.frame = ((NSView*)self.window.contentView).bounds; } Masterviewcontroller has a customized view in the .xib file. When I need to create an NSApp sheet in this NSViewController for another, I'm calling [NSApp beginSheet:_newDataWindow modalForWindow:window modalDelegate:self didEndSelector:nil contextInfo:nil]; I have to use 'window' for beginSheetModalForWindow. But how do I call it from another NSViewController. I end up with compilation error.

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  • Isses using function with variadic arguments

    - by Sausages
    I'm trying to write a logging function and have tried several different attempts at dealing with the variadic arguments, but am having problems with all of them. Here's the latest: - (void) log:(NSString *)format, ... { if (self.loggingEnabled) { va_list vl; va_start(vl, format); NSString* str = [[NSString alloc] initWithFormat:format arguments:vl]; va_end(vl); NSLog(format); } } If I call this like this: [self log:@"I like: %@", @"sausages"]; Then I get an EXC_BAD_ACCESS at the NSLog line (there's also a compiler warning that the format string is not a string literal). However if in XCode's console I do "po str" it displays "I like: sausages" so str seems ok.

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  • Retrieve file size from web server

    - by user326943
    Looking for a way to retrieve a file size from a web server using cocoa/foundation. I know one can use NSURLconnection which will return NSURLResponse that contains the file size. Is there any other way to get the size. I'm looking for a synchronous way of doing it so when i do [myClass getsize] the size is returned. Thanks

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  • How to efficiently get all instances from deeper level in Cocoa model?

    - by Johan Kool
    In my Cocoa Mac app I have an instance A which contains an unordered set of instances B which in turn has an ordered set of instances C. An instance of C can only be in one instance B and B only in one A.   I would like to have an unordered set of all instances C available on instance A. I could enumerate over all instances B each time, but that seems expensive for something I need to do often. However, I am a bit worried that keeping track of instances C in A could become cumbersome and be the cause of  inconsistencies, for example if an instance C gets removed from B but not from A.  Solution 1 Use a NSMutableSet in A and add or remove C instances whenever I do the same operation in B.  Solution 2 Use a weak referenced NSHashTable in A. When deleting a C from B, it should disappear for A as well.  Solution 3 Use key value observing in A to keep track of changes in B, and update a NSMutableSet in A accordingly.  Solution 4 Simply iterate over all instances B to create the set whenever I need it.   Which way is best? Are there any other approaches that I missed?  NB I don't and won't use CoreData for this app.

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  • Forcing Reload of View when returning from FlipSideView of Utility Application

    - by Chris McCall
    I've got a Utility Application for iPhone 3.1.3. I have my main view loading fine. I flip over to the flipside view of the utility app and change some settings. How can I call the code I've currently got in viewDidLoad in the main view to refresh it, as settings have changed? Do I create a public method and call it from the viewDidUnload method of the flipside view? Do I call viewDidLoad directly? What's the best way to do this?

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  • Make an NSString accessible in the whole class

    - by OhhMee
    Hello, I want to know how can I make an NSString accessible in the whole class. Say I have these codes: - (void) init { NSArray *elements = [xpathParser search:@"//foo"]; TFHppleElement *element = [elements objectAtIndex:0]; NSString *data = [element content]; NSArray *elements1 = [xpathParser search:@"//foo2"]; TFHppleElement *element2 = [elements1 objectAtIndex:0]; NSString *data2 = [element2 content]; } And I want to use data & data2 in the whole class, how can I do that? I want to show results here: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } // Configure the cell. switch (indexPath.row) { case 0 : cell.textLabel.text = (@"%@", data); break; case 1: cell.textLabel.text = (@"%@", data2); break; } // Email & Password Section return cell; }

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  • obj-c, how do I create a property and synthesize an NSUInteger ?

    - by Jules
    I'm having some trouble using an NSUInteger, I've tried various things and googled, but not found the answer ? I have... I also tried ... nonatomic, retain @property (readwrite, assign) NSUInteger *anAmount; @synthesize anAmount; error: type of property 'anAmount' does not match type of ivar 'anAmount' Also when I release it in dealloc I get a warning.. warning: invalid receiver type 'NSUInteger'

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  • Does the iPhone 3G/3Gs camera put metadata in its images? (and how do you get it?)

    - by Ben Collins
    I've been trying to figure how whether the iPhone (either 3G or 3Gs) camera puts metadata into it's images. Anecdotally, it appears that it does (e.g., I've seen images posted on the web that included a bunch of metadata), but I can't find reference to it anywhere in the SDK documentation. So....does anyone have a definitive answer? Also, if there is metadata, how do I get at it?

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  • Custom class deallocated as soon as the app starts.

    - by Tangrs
    Heya, I've added a class object to the nib file. All connections are made. But for some reason, the object is deallocated as soon as it's created. Here's the code: control.h: #import <Foundation/Foundation.h> @interface control : NSObject { IBOutlet UILabel *PlayerScore; } -(IBAction) addPoint: sender; -(void) dealloc; @end control.m: #import "control.h" @implementation control -(IBAction)addPoint: sender { NSLog(@"Ohhai. Didn't crash."); //Doesn't even make it to this stage. int i = [PlayerScore.text intValue]; PlayerScore.text=[NSString stringWithFormat: @"%d",++i]; } -(void) dealloc { NSLog(@"ZOMGWTF?"); [super dealloc]; } @end Here is the console log: [Session started at 2010-06-09 19:47:57 +1000.] 2010-06-09 19:47:58.771 App[91100:207] ZOMGWTF? And after I click the button which messages addPoint, of course, it crashes. 2010-06-09 19:47:59.703 App[91100:207] * -[control] performSelector:withObject:withObject:]: message sent to deallocated instance 0x3843d80 Does anyone have any ideas?

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  • how can I pass method Of one class to another class ?

    - by srikanth rongali
    I have a ClassA. in ClassA there is a method(-(void)parseData:). I have a ClassB which have ClassA object. And ClassB *aClassB is member variable of ClassA. In ClassB the code is aClassB = [[ClassB alloc]init]; [aClassB parseData]; I have ClassC. I need to use the method parseData of ClassB in ClassC. I think I can use the object created in ClassB of ClassA. How can I pass the method to ClassC ? Thank You.

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  • XCode - Automatically add all files in a folder to a target

    - by Akshay
    In XCode, is there a way to specify that all files in a folder are compiled by a target. Eg. the 'Test' target automatically compiles all files in the 'Tests' folder, whereas the 'App' target compiles everything in the 'Sources' folder. Today, the way I'm doing it, is to add a file to a target everytime I create it. This feels a bit error prone and redundant since the files are already organized in the correct folders. Thanks.

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  • NSDate compare is false?

    - by user1280535
    i compare 2 NSDates which are the same and i get false result. i cant show how i get this dates because its too long , but i can show what i do : NSLog(@"this date is:%@ , and date we check to equality is:%@",thisDate,dateToFind); if([thisDate isEqualToDate:dateToFind] ) { NSLog(@"equal date!"); // not printed! } the NSLog show me this : this date is:2012-09-13 14:23:54 +0000 , and date we check to equality is:2012-09-13 14:23:54 +0000 he doesnt print the NSLog . why ?

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  • How can I change this method to get rid of the warning without anything changing?

    - by user3591323
    So this question:Warning-used as the name of the previous parameter rather than as part of the selector answers part of my problem, but I really don't want anything to change inside this method and I'm a bit confused on how this works. Here's the whole method: -(void) SetRightWrong:(sqzWord *)word: (int) rightWrong { if (self.mastered==nil) { self.mastered = [[NSMutableArray alloc]initWithCapacity:10]; } //if right change number right if (rightWrong == 1) { word.numberCorrect++; //if 3 right move to masterd list [self.onDeck removeObject:word]; if(word.numberCorrect >= 3 ) { [self.mastered addObject:word]; } else { //if not 3 right move to end of ondeck [self.onDeck addObject:word]; } } else if(rightWrong == 0) { //if wrong remove one from number right unless 0 NSUInteger i; i=[self.onDeck indexOfObject:word]; word = [self.onDeck objectAtIndex:i]; if (word.numberCorrect >0) { word.numberCorrect--; } } } The warning I am getting is: 'word' used as the name of the previous parameter than as part of the selector.

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