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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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  • Convert a NSString

    - by zp26
    My situation is explained in the code below. I need to send via a socket NSString drawn from a TextBox Thank you very much NSString *string = fieldTesto.txt; // I Find an istruction for insert s string in to the CFSocketSend UInt8 message[] = "Hello world"; CFDataRef data = CFDataCreate(NULL, message, sizeof(message)); CFSocketSendData(s, NULL, data, 0); CFRelease(data);

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  • Setting up layout/events on iPhone

    - by Mohit Deshpande
    I am using Open Source toolchain to compile my iPhone apps. So I have no Interface Builder or XCode. How would I setup the layout of widgets like UIButton, UITextView, etc. Also, how would I add an event handler to those UI widgets? Please remember that I don't have Interface Builder or XCode.

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  • How to take a screen shot in iPhone via code

    - by Radix
    Hello friends; I am working on an app and am almost done with it, but the only thing pending is that i am not able to take screen shots of my screen on the touch of the UIButton object. I have saw a code available which said to use UIGetScreenImage(), but alas that didn't worked fine. I want to take the screen shot and display it in the UIImageView. So can you please provide me with the link or code to do the same, that would be really nice of you Thanks & Regards Radix

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  • Obj-C memory management for an NSView * instance variable

    - by massimoperi
    My custom view has a subview as an instance variable. Here is a sample interface: @interface MyCustomView : NSView { NSView *aSubview; } @end Then, in the .m file, I initialize aSubView and add it to the custom view. - (id)init { self = [super initWithFrame:CGRectMakeFrame(0.0, 0.0, 320.0, 480.0); if (self) { aSubview = [[NSView alloc] initWithFrame(0.0, 0.0, 100.0, 100.0); [self addSubview:aSubview]; } return self; } Where should I release aSubView? In the -dealloc method? - (void)dealloc { [aSubView release]; [super dealloc]; } Or directly after adding it to the custom view in the -init method? - (id)init { [...] [self addSubview:aSubview]; [aSubview release]; [...] } Which one is the best implementation?

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  • Bind Java program to Cocoa interface

    - by Kevin
    Hi, would it be possible to bind a Java application to a Cocoa graphical interface? I'm working in Eclipse right now, on my mac, and am wondering if Interface Builder could be used to construct a new interface so that I don't have to look at Swing all day. Any ideas/suggestions? Thanks!

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  • Animation with CGPoint in for loop

    - by user1066524
    I'm trying to do an animation where when a person clicks from point A to Point B on screen the object should slowly slide straight across (horizontally) from point A to Point B. I tried doing a for loop with something like: for (CGFloat i=previousPoint.x; i <= newPoint.x; i++){ [UIView animateWithDuration:10 delay:0 options:nil animations:^ { [magnifier removeFromSuperview]; magnifier = [[MagnifierView alloc] init]; CGPoint np = {i, newPoint.y}; magnifier.viewToMagnify = imageView; magnifier.touchPoint = np; [imageView addSubview:magnifier]; [magnifier setNeedsDisplay]; } completion:^(BOOL finished) { }]; } but for some reason it is moving it way up and then eventually to point B. sort of in a weird curve. how can I do this correctly?

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  • How to set UITableViewCell highlighted image

    - by SmartTree
    I want to launch a method every time when user just highlights a cell (doesn't select it) in UITableView. Could you tell me please, how is it possible to do this ? I want to do it because I have a custom cell with a pictures on it and I want to change pictures every time when user highlights the cell. UPD: By highlight I mean that user just highlights a cell and don't release the finger from it. By select I mean when didSelectRowAtIndexPath is being launched (so the user releases the finger from the cell after he presses on it)

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  • Draw text with in a rect with given width

    - by Forchita
    I'm trying to draw text on NSView subclass. I'm using an NSTextStorage, an NSLayoutManager, and an NSTextContainer. I followed Apple's doc and here's the method I use to calculate the necessary height for each text: NSSize newSize= NSMakeSize(width, 0.0); NSLayoutManager* layoutManager= [[textStorage layoutManagers] objectAtIndex:0]; NSTextContainer* textContainer= [[layoutManager textContainers] objectAtIndex:0]; [textContainer setContainerSize:newSize]; [textStorage addAttribute:NSFontAttributeName value:font range:NSMakeRange(0, [textStorage length])]; [textContainer setLineFragmentPadding:0.0]; [layoutManager glyphRangeForTextContainer:textContainer]; return [layoutManager usedRectForTextContainer:textContainer].size.height; The only problem is that I don't know how to draw in an NSRect with the layout manager. Can you help me please? Thanks in advance!

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  • The delegate method "clickedButtonAtIndex:" is not called.

    - by sagiftw
    Hello everyone! I have created an alert view with two buttons using the following code: UIAlertView *alertView = [[UIAlertView alloc] initWithTitle: title message: msg delegate:nil cancelButtonTitle:@"Replay" otherButtonTitles:@"Highscore", nil]; [alertView show]; I want to run some code when one of the buttons is clicked. In order to do so, I have added the following method to the delegate.m file: - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if (buttonIndex==0) //Run some code else //Other code } But this method is not called when I press either of the buttons! Can someone tell me why? Thanks in advance, Sagiftw

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  • how can i set the background color of a particular button in iphone ?

    - by suchita
    for this I used btnName1 = [ColorfulButton buttonWithType:UIButtonTypeRoundedRect]; btnName1.frame=CGRectMake(45,146,220,40); [btnName1 setTitle:@"Continue" forState:UIControlStateNormal]; [btnName1 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; [btnName1 setImage:[UIImage imageNamed:@"green.png"] forState:UIControlStateNormal]; UIImage *img =[UIImage imageWithContentsOfFile:[[NSBundle mainBundle]pathForResource:@"greenish" ofType:@"png"]]; UIImage *strechableImage = [img stretchableImageWithLeftCapWidth:12 topCapHeight:0]; [btnName1 setBackgroundImage:strechableImage forState:UIControlStateNormal]; [btnName1 setNeedsDisplay]; [InfoView addSubview:btnName1]; it's correctly working on iphone simulator but not on ipod(color not show in ipod)

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  • synchronously load html content in UIWebView

    - by mbg1987
    im using a UIWebView to show html content in my app, the app contains two arrows to navigate between topics just like a RSS reader app, but when the user hits up or down arrow, the next topic doesn't show up until the data come back and the user still able to interact with the UI which is a bit confusing, My question: how to block the UI when user moves to the next/back topic ? in other words how to make loadHTMLString:baseURL: works as a synchronous calling ? thanks !

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  • Where to initialize a NSMutableArray?

    - by eco_bach
    Hi having an issue using a NSMutableArray; In my implementation file applicationDidFinishLaunching method I have _imgArray = [NSMutableArray array]; and _imgArray is defined in my .h file as NSMutableArray *_imgArray; After populating it, it traces out correctly. The problem is, in another method in my implementation file, I can't seem to acces the _imgArray array. It traces out to _imgArray= ar.lproj What gives?

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  • Code formatting when using pointers

    - by HD-VRSCA
    Is there any reason why the asterisk is next to the object type in this code? I'm a little confused by the way I see this used. Some times it looks like this: NSString* stringBefore; and sometimes like this: NSString *stringBefore; Is there a difference? Or a right or wrong way to do this? Thanks

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  • iPhone SDK: Downloading large files from a server into the app's documents.

    - by Jessica
    Hi, I am building an app that plays multiple video files, But I would like to know How do you download a video file (100mb - 300mb) from a server into the application's documents so it can later be locally referred to in code? The reason I want this type of a set up in my app is that I don't want the app binary to be made unnecessarily large due to including videos some users may not want. Also does this violate any of apple's terms? Also would it be simple to implement a progress view with this kind of set up and if so how? Any help is appreciated.

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  • What happens inside the try block?

    - by dontWatchMyProfile
    Example: @try { // 1) do bad stuff that can throw an exception... // 2) do some more stuff // 3) ...and more... } @catch (NSException *e) { NSLog(@"Error: %@: %@", [e name], [e reason]); } If 1) throws an exception, is the block immediately canceled like a return in a function or a break in a loop? Or will 2) and 3) be processed no matter what happens in 1)?

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  • How Is This Done?? (iPhone)

    - by Stumf
    Hello all, There is an application available for jailbroken iPhones called YourTube which adds extra functionality to the stock YouTube application. Info here: http://forums.macrumors.com/showthread.php?t=754439 My question is... how is this possible and how could I do something similar? Many thanks, Stuart

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