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  • CGAffineTransformMakeRotation UIImageView

    - by Bharathi Jayakumar
    I have an UIImageView and I wanted to rotate it slightly in the anti-clock direction. But when I do that, rotation works. But the edges are not shared. Having a pixelated edges. How do I solve this issue. Please help. UIImageView *popupTop = [[UIImageView alloc] initWithFrame:CGRectMake(10, 54, 300, 15)]; popupTop.image = [UIImage imageNamed:@"pover_note.png"]; [self.view addSubview:popupTop]; popupTop.transform = CGAffineTransformMakeRotation(-0.04);

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  • Static library woes in iPhone 3.x with categories and C libraries

    - by hgpc
    I have a static library (let's call it S) that uses a category (NSData+Base64 from MGTwitterEngine) and a C library (MiniZip wrapped by ZipArchive). This static library is used in an iPhone 3.x project (let's call it A). To be able to use the MiniZip library I included its files in project A as well as the static library S. If not I get compilation errors. Project A works fine on the simulator. When I run it on the device, I get unrecognized selector errors when the category is used. As pointed out here, it seems there's a linker bug that affects categories in iPhone 3.x (http://stackoverflow.com/questions/1147676/categories-in-static-library-for-iphone-device-3-0). The workaround is to add -all_load to the Other Linker Flags of the project that references the static library. However, if I do this then I get duplicate symbol errors because I included the MiniZip libraries in project A. A workaround is to include the category files in project A as well. If I do this, project A works well in the device, but fails to build on the simulator because of duplicate symbol errors. How should I set up project A to make it work on the simulator and the device with the same configuration?

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  • How to set up single array or dictionary for use in multiple datasources?

    - by Roman
    I have multiple TableViewDatasources that need to display list of objects form same pool depending of certain property. E.g. object.flag1 is set- it will show up in TableView1 object.flag2 is set- it will show up in TableView2 The obvious way would be to have separate arrays for each TableView, But same object may appear in different arrays. Also I need to update objects very often or access all objects through same array. How do I setup a single dictionary or array to have all objects in one structure? To put it in another way: When table view or selection changes, application need to redraw TableViews with the new data. Application have to access the pool of objects and search through them using iterator and accessing each object and its properties. I think that this is an expensive operation and want to avoid that. Perhaps maybe by making a global pool of objects a dictionary and exposing objects properties as dictionary fields. So instead of iterating global pool of objects I could access global pool Dicitonary in a manner of database by selecting objects that has fields that match particular criteria. Anyone know any example of doing that?

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  • How can I check that the NSPasteboard is updated?

    - by Ben Packard
    I'm automating a copy command to place some text on the pasteboard every second or so - unfortunately this is my only way of accessing the text, which is in another application. After copying, I access the pasteboard text and process it. Sometimes, the copy command will be sent when nothing is selected - for example in textEdit, if the cursor is at the end of a line (instead of highlighting some text) and you hit copy, you get a system beep because there is nothing selected to copy. The pasteboard does not update and retains its previous data. I can't think of a creative way to identify when this happens. If I send a copy command and the pasteboard doesn't update, is there any kind of time stamp on the pasteboard I can access that will confirm that something has or hasn't been captured? I was looking at the changeCount, but I'm not sure what that is for exactly, and the documentation didn't help me much - red herring? Any simple and effective ideas gratefully received!

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  • Capturing a NSParseErrorException

    - by Martin
    Could someone tell me how I can capture a NSParseErrorException? The Situation: my app downloads a small .plist file. I convert this into dictionary using the string method -propertylist. This normally works fine. I check for a connection before going to retrieve the file, so it works fine if I've got a connection to the internet, and works fine when I don't. However, I discovered a use case that crashes. If I'm at location that requires authetication before connecting to the internet (at Starbucks, say) what's being returned by the app isn't a plist and the attempt to parse it causes the application to crash. So is there a way to transform my code so that the NSParseErrorException is caught and rather than crashing the program I can just skip over this piece of code? NSDictionary *temp = [myDownloadString propertyList]; I tried doing this if ([myDownloadString propertyList]==NSParseErrorException){ //do something } but that didn't work.

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  • Why is my UIImageView blurred?

    - by Denis M
    I have a really weird problem with UIImageView. I have an image (an RGB png) 45x45 pixels which I add to the view. I can see that image is blurred after added to the view. Here is the same image in the simulator (left) and in Xcode (right): I have custom UIImageView class with this initWithImage code: - (id) initWithImage:(UIImage*) image { self = [super initWithImage:image]; self.frame = CGRectMake(0, 0, 45, 45); self.contentMode = UIViewContentModeScaleAspectFit; self.quantity = 1; if (self) { self.label = [[UITextField alloc]initWithFrame:CGRectMake(0,40,45,25)]; self.label.font = [UIFont systemFontOfSize:16]; self.label.borderStyle = UITextBorderStyleNone; self.label.enabled = TRUE; self.label.userInteractionEnabled = TRUE; self.label.delegate = self; self.label.keyboardType = UIKeyboardTypeNumbersAndPunctuation; self.label.textAlignment = UITextAlignmentCenter; } self.userInteractionEnabled = TRUE; // Prepare 3 buttons: count up, count down, and delete self.deleteButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; self.deleteButton.hidden = NO; self.deleteButton.userInteractionEnabled = YES; self.deleteButton.titleLabel.font = [UIFont systemFontOfSize:20]; self.deleteButton.titleLabel.textColor = [UIColor redColor]; [self.deleteButton setTitle:@"X" forState:UIControlStateNormal]; [self.deleteButton addTarget:self action:@selector(deleteIcon:) forControlEvents:UIControlEventTouchUpInside]; self.upCountButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; self.upCountButton.hidden = NO; self.upCountButton.userInteractionEnabled = YES; [self.upCountButton setTitle:@"+" forState:UIControlStateNormal]; [self.upCountButton addTarget:self action:@selector(addQuantity:) forControlEvents:UIControlEventTouchUpInside]; self.downCountButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; self.downCountButton.hidden = YES; self.downCountButton.userInteractionEnabled = YES; [self.downCountButton setTitle:@"-" forState:UIControlStateNormal]; [self.downCountButton addTarget:self action:@selector(removeQuantity:) forControlEvents:UIControlEventTouchUpInside]; return self; } I create it like this: UIImage *desertIcon = [UIImage imageNamed:@"desert.png"]; IconObj *desertIconView = [[IconObj alloc] initWithImage:desertIcon]; desertIconView.center = CGPointMake(265,VERTICAL_POINT_ICON); desertIconView.type = [IconObj TYPE_DESERT]; [self.view addSubview:desertIconView]; [desertIconView release]; Why would the displayed image be so than the one stored in a file?

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  • UILineBreakModeWordWrap deprecated

    - by Ahmed Salem
    I Have A Problem In My App when I Write This Code UILineBreakModeWordWrap And I Got UILineBreakModeWordWrap deprecated : first deprecated in IOS 6 My Code Is : NSString *texto = [[superArray objectAtIndex:indexPath.row]objectForKey:@"Text"]; CGSize tamanho=[texto sizeWithFont:[UIFont systemFontOfSize:16.0f]constrainedToSize:CGSizeMake(240.0f, 480.0f) lineBreakMode:UILineBreakModeWordWrap]; UIImage *imagemBalao;

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  • iPhone switch statement using enum

    - by Boris
    I have defined an enum in a header file of a class : typedef enum{ RED = 0, BLUE, Green } Colors; - (void) switchTest:(Colors)testColor; and in the implementation file I have : - (void) switchTest:(Colors)testColor{ if(testColor == RED){ NSLog(@"Red selected"); } switch(testColor){ case RED: NSLog(@"Red selected again !"); break; default: NSLog(@"default selected"); break; } } My code compiles correctly without warrnings. When calling the switchTest method with RED, the output is : "Red selected" but once the first line of the switch runs, the application quits unexpectedly and without warrnings/errors. I don't mind using if/else syntax but I would like to understand my mistake.

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  • Iphone internet connection (Reachability)

    - by ludo
    Hi, I saw any post about Reachability but people doesn't really give the exact answer to the problem. In my application I use the Reachability code from apple and in my appDelegate I use this: -(BOOL)checkInternet { Reachability *reachability = [Reachability reachabilityWithHostName:@"www.google.com"]; NetworkStatus internetStatus = [reachability currentReachabilityStatus]; BOOL internet; if ((internetStatus != ReachableViaWiFi) && (internetStatus != ReachableViaWWAN)) { internet = NO; }else { internet = YES; } return internet; } So the problem is even if I have an internet connection, this code telling me that I don't have one. Does anyone know what to do to make this working? Thanks,

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  • Zooming image in a scroll view

    - by iSharreth
    I want to zoom an image in a scroll view. I used the below code. All are working fine, but the image is not zooming. Anyone please help. I am a beginner in iPhone app development. I had connected the delegate to files manager and set max zooming to 5 I can see the image. But how can I zoom it. IBOutlet UIScrollView *scrForImg; IBOutlet UIImageView *imgForScr; (void)viewDidLoad { [super viewDidLoad]; NSString *imagePath = [NSString stringWithFormat:@"myImage.png"]; imgForScr.image = [UIImage imageNamed:imagePath]; } -(UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView{ return imgForScr; }

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  • Is it possible to do some interop with iWork?

    - by Alerty
    I know it is possible with the .NET framework of Microsoft to do some interoperability with Microsoft Office. Is there something that exist that resembles to it for iWork and the Cocoa framework? Edit: Here are more details. I would like to create an application that has a GUI and that can generate Pages/Keynote/Numbers documents.

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  • What do I need to implement a basic map framework?

    - by Mickey Shine
    I am doing iPhone development and what I want is a custom map framework (not route-me, not Google Maps). So far I found CATiledLayer and UISCrollView is helpful. But I am still not clear about the stuff(any kind of view, or anything from CoreAnimation framework, or anything else?) which would be perfectly fit this. I need some guidance of making a custom map framework from scratch. Thank you

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  • Adding an NSTextField as a subview

    - by Kenny
    I'm trying to add an NSTextField as a subview of a custom view class I have (which subclasses NSView), and then make the text field the first responder. This works fine... the text field shows up and I can start typing in it. However, any mouse events in the text field seem to fall through to its superview. For example, I can't see the mouse cursor when I hover over the text field, and when I click anywhere in the text field, it attempts to resign firstResponder status instead of letting me select text within the text field. I'm not overridding hitTest or anything weird like that, and I only have one window, which is definitely the key window. Any ideas? Thanks in advance! :-)

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  • NSTextField and hidden property

    - by jasonbogd
    Hi, I have an NSTextField that I hide when the user presses a button. I hide the text field using [textField setHidden:YES]; The problem is that is the user is typing in the text field (i.e. the text field is first responder) and the user presses the return key (which is the key equivalent for the button that hides the text field) the user can keep typing in the text field even though its not visible. How do I correctly remove a text field without actually deallocating it? Thanks.

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  • How can I store Google Maps search results in an array?

    - by Thomas
    Hi All, I'm working on an app where I need to query Google for businesses near a current location. How do I go about storing them in an array? I don't want to exit the app and open Google Maps, I want to be able to display the addresses in a list format (Table View, I suppose). Any help would be greatly appreciated. Thanks! Thomas

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  • Animating an Image

    - by Viral
    hi friends, I m creating a game, in that i want to use some animation, but i m new to animations. I want to create an image ,as soon as i click on imageview, the image should come in bouncing manner as if it is a Ball, so is it possible to do so??? The image is predefined for the game.and it must come after touch begin event occures, can any one help me??? regards viral.

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  • Invoke method in another class

    - by Sam
    I have two view controllers (viewControllerA and viewControllerB) with their own views. When the user touches a button in the view of viewControllerA, I am able to load the view of the viewControllerB. However, I don't know how to invoke a method in viewControllerB's class!

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  • Exposing headers on iPhone static library

    - by leolobato
    Hello guys, I've followed this tutorial for setting up a static library with common classes from 3 projects we are working on. It's pretty simple, create a new static library project on xcode, add the code there, a change some headers role from project to public. The tutorial says I should add my library folder to the header search paths recursively. Is this the right way to go? I mean, on my library project, I have files separated in folders like Global/, InfoScreen/, Additions/. I was trying to setup one LOKit.h file on the root folder, and inside that file #import everything I need to expose. So on my host project I don't need to add the folder recursively to the header search path, and would just #import "LOKit.h". But I couldn't get this to work, the host project won't build complaining about all the classes I didn't add to LOKit.h, even though the library project builds. So, my question is, what is the right way of exposing header files when I setup a Cocoa Touch Static Library project on xCode?

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  • Override System Preference Pane?

    - by DisappointedIdealist
    Is there a way to override / disable a system preference pane? I'm wanting to put an application together that would disable or override the Energy Saver preference pane, and would put it's own rules in place for putting a machine into standby, turning off the monitor, or other various energy saving activities.

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