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  • Problem dismissing multiple modal view controllers

    - by Sheehan Alam
    I am having trouble getting my modal view controllers to display properly. I have a parent view controller that is the delegate for modal view A. In modal view A I am presenting modal view B, and having the delegate dimiss modal view A. When modal view B appears it seems to display but the screen dims, and the UI locks up, but the app doesn't crash. I set animation settings to NO and I am still getting the same issue.

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  • Get size of UIView after applying CGAffineTransform

    - by Ican Zilb
    I was surprised not to find an answer to this question, maybe is something very simple I somehow overlook : How to get the real size of an UIView after I apply a CGAffineTransform to it? eg. my UIView has size 300 x 200, I apply a scaling transform let's say factor 2 both horizontal and vertical, so the UIView now takes 600 x 400 on the screen, but it's bounds and it's layer's bounds are still returning a size of 300 x 200 ... where do I find the real size of the UIView ?

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  • iPhone SDK - UITabBarConroller and custom design

    - by Cheryl
    Hi I am having a problem with my tab bars at the bottom of the screen. The designer has decided it should be one colour (not black) when inactive and another colour when active. I have worked out how to replace the main colour of the tabbar by subclassing UITabBarController and doing this:- - (void)viewDidLoad { [super viewDidLoad]; CGRect frame = CGRectMake(0.0, 0, self.view.bounds.size.width, self.view.bounds.size.height); UIView *v = [[UIView alloc] initWithFrame:frame]; //get percentage values from digitalcolour meter and enter as decimals v.backgroundColor = [UIColor colorWithRed:.0 green:.706 blue:.863 alpha:1]; [tabBar1 insertSubview:v atIndex:0]; [v release]; } I just can't see how to make the active tabbar be a separate colour when it is selected. I have tried subclassing UITabBarItem but there doesn't seem to be any property for me to set to change the background colour of the tab. They also want to have the icons on the tab bar not be blue and grey and I can't figure out how to do that. In the ViewController for one tab bar item I have put this into viewdidload:- myTabBarItem *tabItem = [[myTabBarItem alloc] initWithTitle:@"listOOO" image:[UIImage imageNamed:@"starcopy.png"] tag:1]; tabItem.customHighlightedImage=[UIImage imageNamed:@"starcopy.png"]; self.tabBarItem=tabItem; [tabItem release]; tabItem=nil; and in my subclass of UITabBarItem I have put this:- -(UIImage *) selectedImage{ return self.customHighlightedImage; } Only I don't see the icon at all. If I put this into the viewDidLoad of my subclass of UITabBarController:- for (UITabBarItem *item in tabBar1.items){ item.image = [UIImage imageNamed:@"starcopy.png"]; } Then all my tab bars have the icon but they are blue (and grey when inactive) how would I get them not to become blue but stay their original colour? If you have any light on this problem please help as I have been banking my head on the wall for 2 days now and it's getting me down. Thanks in advance Cheryl

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  • Compiler warning "not found in protocol(s)" when using [[[UIApplication sharedApplication] delegate]

    - by DK Crame
    I have myClass instantiated by my appDelegate, I have another class, newClass instantiated by myClass. From the newClass instance, I want to access a property in the myClass instance that created it. I have done this by: [[[UIApplication sharedApplication].delegate myClass] property] This works, I can actually get the property but I get this warning from Xcode: warning: "-myClass" not found in protocols warning: no "-myClass" method found (messages without a matching signature will be assumed to return "id" and accept "..." as arguments) The newClass property has been correctly declared in the .h and .m files, it's properties have been set and it has been synthesized. It compiles and runs and I can actually get the property's value. Should I ignore the warning in Xcode? Is there a better way to access the myClass instance's property?

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  • how to update database table in sqlite3 iphone

    - by Ajeet Kumar Yadav
    Hi I am new in Iphone i am developing application that is use database but i am face problem. In My application I am using table view. I am fetch the value from database in the table view this is done after that we also insert value throw text field in that table of database and display that value in table view.I am also use another table in database table name is Alootikki the value of table alootikki is display in other table view in application and user want to add this table alootikki value in first table of database and display that value in table view when we do this value is display only in the table view this is not write in the database table. when value is display and user want to add other data throw text field then only that add value is show first value is remove from table view. I am not able to solve this plz help me. The code is given bellow for database -(void)Data1 { //////databaseName = @"dataa.sqlite"; databaseName = @"Recipe1.sqlite"; NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDir = [documentPaths objectAtIndex:0]; databasePath =[documentsDir stringByAppendingPathComponent:databaseName]; [self checkAndCreateDatabase]; list1 = [[NSMutableArray alloc] init]; sqlite3 *database; if (sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) { if(addStmt == nil) { ////////////const char *sql = "insert into Dataa(item) Values(?)"; const char *sql = " insert into Slist(Incredients ) Values(?)"; if(sqlite3_prepare_v2(database, sql, -1, &addStmt, NULL) != SQLITE_OK) NSAssert1(0, @"Error while creating add statement. '%s'", sqlite3_errmsg(database)); } sqlite3_bind_text(addStmt, 1, [i UTF8String], -1, SQLITE_TRANSIENT); //sqlite3_bind_int(addStmt,1,i); // sqlite3_bind_text(addStmt, 1, [coffeeName UTF8String], -1, SQLITE_TRANSIENT); // sqlite3_bind_double(addStmt, 2, [price doubleValue]); if(SQLITE_DONE != sqlite3_step(addStmt)) NSAssert1(0, @"Error while inserting data. '%s'", sqlite3_errmsg(database)); else //SQLite provides a method to get the last primary key inserted by using sqlite3_last_insert_rowid coffeeID = sqlite3_last_insert_rowid(database); //Reset the add statement. sqlite3_reset(addStmt); // sqlite3_clear_bindings(detailStmt); //} } sqlite3_finalize(addStmt); addStmt = nil; sqlite3_close(database); } -(void)sopinglist { databaseName= @"Recipe1.sqlite"; NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDir = [documentPaths objectAtIndex:0]; databasePath =[documentsDir stringByAppendingPathComponent:databaseName]; [self checkAndCreateDatabase]; list1 = [[NSMutableArray alloc] init]; sqlite3 *database; if (sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) { if(addStmt == nil) { ///////////const char *sql = "insert into Dataa(item) Values(?)"; const char *sql = " insert into Slist(Incredients,Recipename,foodtype ) Values(?,?,?)"; ///////////// const char *sql =" Update Slist ( Incredients, Recipename,foodtype) Values(?,?,?)"; if(sqlite3_prepare_v2(database, sql, -1, &addStmt, NULL) != SQLITE_OK) NSAssert1(0, @"Error while creating add statement. '%s'", sqlite3_errmsg(database)); } /////for( NSString * j in k) sqlite3_bind_text(addStmt, 1, [k UTF8String], -1, SQLITE_TRANSIENT); //sqlite3_bind_int(addStmt,1,i); // sqlite3_bind_text(addStmt, 1, [coffeeName UTF8String], -1, SQLITE_TRANSIENT); // sqlite3_bind_double(addStmt, 2, [price doubleValue]); if(SQLITE_DONE != sqlite3_step(addStmt)) NSAssert1(0, @"Error while inserting data. '%s'", sqlite3_errmsg(database)); else //SQLite provides a method to get the last primary key inserted by using sqlite3_last_insert_rowid coffeeID = sqlite3_last_insert_rowid(database); //Reset the add statement. sqlite3_reset(addStmt); // sqlite3_clear_bindings(detailStmt); //} } sqlite3_finalize(addStmt); addStmt = nil; sqlite3_close(database); } -(void)Data { ////////////////databaseName = @"dataa.sqlite"; databaseName = @"Recipe1.sqlite"; NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDir = [documentPaths objectAtIndex:0]; databasePath =[documentsDir stringByAppendingPathComponent:databaseName]; [self checkAndCreateDatabase]; list1 = [[NSMutableArray alloc] init]; sqlite3 *database; if (sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) { if(detailStmt == nil) { const char *sql = "Select * from Slist "; if(sqlite3_prepare_v2(database, sql, -1, &detailStmt, NULL) == SQLITE_OK) { //NSLog(@"Hiiiiiii"); //sqlite3_bind_text(detailStmt, 1, [t1 UTF8String], -1, SQLITE_TRANSIENT); //sqlite3_bind_text(detailStmt, 2, [t2 UTF8String], -2, SQLITE_TRANSIENT); //sqlite3_bind_int(detailStmt, 3, t3); while(sqlite3_step(detailStmt) == SQLITE_ROW) { NSLog(@"Helllloooooo"); //NSString *item= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 0)]; NSString *item= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 0)]; char *str=( char*)sqlite3_column_text(detailStmt, 0); if( str) { item = [ NSString stringWithUTF8String:str ]; } else { item= @""; } //+ (NSString*)stringWithCharsIfNotNull: (char*)item /// { // if ( item == NULL ) // return nil; //else // return [[NSString stringWithUTF8String: item] //stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]]; //} //NSString *fame= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 1)]; //NSString *cinemax = [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 2)]; //NSString *big= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 3)]; //pvr1 = pvr; item1=item; //NSLog(@"%@",item1); data = [[NSMutableArray alloc] init]; list *animal=[[list alloc] initWithName:item1]; // Add the animal object to the animals Array [list1 addObject:animal]; //[list1 addObject:item]; } sqlite3_reset(detailStmt); } sqlite3_finalize(detailStmt); // sqlite3_clear_bindings(detailStmt); } } detailStmt = nil; sqlite3_close(database); } (void)recpies { /////////////////////databaseName = @"Data.sqlite"; databaseName = @"Recipe1.sqlite"; NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDir = [documentPaths objectAtIndex:0]; databasePath =[documentsDir stringByAppendingPathComponent:databaseName]; [self checkAndCreateDatabase]; list1 = [[NSMutableArray alloc] init]; sqlite3 *database; if (sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) { if(detailStmt == nil) { //////const char *sql = "Select * from Dataa"; const char *sql ="select *from alootikki"; if(sqlite3_prepare_v2(database, sql, -1, &detailStmt, NULL) == SQLITE_OK) { //NSLog(@"Hiiiiiii"); //sqlite3_bind_text(detailStmt, 1, [t1 UTF8String], -1, SQLITE_TRANSIENT); //sqlite3_bind_text(detailStmt, 2, [t2 UTF8String], -2, SQLITE_TRANSIENT); //sqlite3_bind_int(detailStmt, 3, t3); while(sqlite3_step(detailStmt) == SQLITE_ROW) { //NSLog(@"Helllloooooo"); //NSString *item= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 0)]; NSString *item= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 0)]; char *str=( char*)sqlite3_column_text(detailStmt, 0); if( str) { item = [ NSString stringWithUTF8String:str ]; } else { item= @""; } //NSString *fame= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 1)]; //NSString *cinemax = [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 2)]; //NSString *big= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 3)]; //pvr1 = pvr; item1=item; //NSLog(@"%@",item1); data = [[NSMutableArray alloc] init]; list *animal=[[list alloc] initWithName:item1]; // Add the animal object to the animals Array [list1 addObject:animal]; //[list1 addObject:item]; } sqlite3_reset(detailStmt); } sqlite3_finalize(detailStmt); // sqlite3_clear_bindings(detailStmt); } } detailStmt = nil; sqlite3_close(database); }

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  • Can a struct become deallocated?

    - by brettr
    I've declared a struct in my header file like this: typedef struct { NSString *department; NSString *departmentId; } Department; Department currentDepartment; This struct is in a fairly simple class. I assign the struct values in viewDidLoad. Just before leaving viewDidLoad, I see the struct values are still there. After the user clicks a segment control, I reassign the struct values. Before assigning values, I see the two struct values are 0x0. I do have NSZombieEnabled, which is printing out this when I mouse over the struct while the app is running and one of my breakpoints have been hit: MyApp[25722:207] *** -[CFString _cfTypeID]: message sent to deallocated instance 0xfc0e90 I'm not creating an instance of the struct or deallocating it. How can it be getting deallocated?

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  • iPhone mapKit annotation for Current Location

    - by Simon
    Hello Im currently strugglung with annotations. how can i prevent the AnnotationLable for the blue GPS-point. (Here is an Image) - (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(MKAnnotation *) annotation{ if (annotation == mapView.userLocation) { return nil; } the function above isnt working, and i realized that i can't compare two coordinates. Any hint is welcome. Simon

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  • How to deal with background image orientation in UIView

    - by docchang
    I'm using setting the background image using methodology below. When I rotate my device the background repeats, which make sense because it is not an image. How do I deal with orientation change if this is the way I'm setting my background image? - (void)viewDidLoad { [super viewDidLoad]; UIColor *background = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"background.png"]]; self.view.backgroundColor = background; [background release]; }

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  • How do I programmatically duplicate UIViews built in interface builder?

    - by Cam Spiers
    I want to build up a sub-UIView in Interface Builder (contained within a UIScrollView) with some UILabels contained, I then want to programmatically "copy" this view adjust its left position (by multiples of its width) to achieve a "floating" left effect inside a UIScrollView. I then want to add this copied UIView back into the UIScrollView with different text for the UILabels. The problem is I don't know how and if you can "copy" UIViews.

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  • How do I track down the source of a KVC exception: this class is not key value coding-compliant for

    - by sam
    I get this error when I try to run my app: 2010-04-29 13:49:01.355 MyApp[56123:207] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<MyViewController 0x5112b10> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key toolbar.' MyViewController used to have an IBOutlet called 'toolbar' that connected to a UIToolbar object in a nib. I decided I no longer needed the toolbar or the nib so I removed them from the project. But Xcode seems to still want to refer to 'toolbar'. Where might the reference to toolbar be if I no longer use a nib? I can synthesize a dummy 'toolbar' property to appease Xcode, but I want to avoid this kind of ugly hack.

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  • UIPopoverController gesture handling in UISplitViewController for iOS 5.1 and below

    - by 5StringRyan
    I've (along with many others) have noticed that Apple changed the appearance of the popover controller to use a "slider" window rather than the usual "popover" tableview that I've used. While I'm okay with the new appearance, like others I'm having issues with the swipe gesture that is introduced: iOS 5.1 swipe gesture hijacked by UISplitViewController - how to avoid? The fix for this seems to be to set the split view controller method "presentWithGesture" to "NO." UISplitViewController *splitViewController = [[UISplitViewController alloc] init]; splitViewController.presentsWithGesture = NO; This works great if the user is using iOS 5.1, however, if this code is run using iOS 5.0 or below, an exception is thrown since this method is only available for iOS 5.1: Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UISplitViewController setPresentsWithGesture:]: unrecognized selector Is it possible to get rid of this gesture without using this method so that it's backwards compatible with iOS' 5.0 and below?

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  • UISwitch propagate state

    - by Reonarudo
    Hello, I'm still rather new to iPhone development and I tried something I didn't it was possible. I have a UIView for my TableView Section Header with a switch on it, and I also have a UITableCellView with another Switch on it. It all looks fine, but now I want to propagate the UISwitch state from the section header to all the UISwitches on the section rows. Can anyone enlighten me how can I accomplish this? Thank you.

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  • What way to use the CGContext to draw is suitable?

    - by Tattat
    I know that the CGContext cannot call it to draw directly, and it needs to fill the drawing logic in the drawInContext, and call the CGContext to draw using "setNeedsDisplay", so, I designed a cmd to execute, but it cause some problems... like this : http://stackoverflow.com/questions/2617827/why-i-cant-draw-in-a-loop-using-uiview-in-iphone I think the CGContext is very different from my previous programming experience....(I used HTML5 canvas, that allow me add more details, after I draw, so do the Java Swing) Actually, I want to know what is the suitable to implement these kind of thing in Apples' programmer mind. Thz.

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  • Is there a better way of launching same app from GUI or Command line

    - by markhunte
    Hi All, I worked out a way of running my Cocoa (GUI) app. From either the normal double clicking it, Or from the CLI. I realised that when an app launches from a double click (GUI), it returns an argument count (argc) of 0. But when launched from the CLI it will have an argc of 1. So long as I do not put any arguments myself. Which means I can use if.. else.. to determine how the app was launched. This works fine for my app as I do not need to put arguments. But I wondered if there was a better way of doing it. Here is an example of the code in the main.m int main (int argc, const char * argv[]) { //This determins if the app is launched from the command line or app itself is opened. if (argc == 1) { //app was run from CLI // Create a object MyClass *mMyClass; mMyClass = [[MyClass alloc] init]; // Read the Buffer [mMyClass readBuffer]; // Write out file on disk [mMyClass createFile]; [mMyClass doMoreStuff]; [mMyClass release]; mMyClass = nil; return 0; } else { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; //app was doubled click, (Opened) return NSApplicationMain(argc, (const char **) argv); [pool drain]; // */ // return NSApplicationMain(argc, (const char **) argv); }} Many Thanks. M

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  • Subview of custom NSView is resizing itself to fit within its superview

    - by Jonathan Patt
    I have a custom NSView which contains a subview—for the purposes of solving this issue, the top level view is simply acting as a container and automatically resizes to fit within the window. Its subview draws a rectangle 10 pixels inset from the edge of the window, except for the bottom, which should get clipped by the window until it's resized to show the entire rectangle. It does not, however, behave as I intend, and instead shrinks the height of the rectangle when its superview has a smaller height than it does. How do I avoid this and have it stay at its proper height and instead get clipped when the superview is smaller? The parent view's implementation code is: - (id)initWithFrame:(NSRect)frameRect { self = [super initWithFrame:frameRect]; if (self) { subView = [[SubView alloc] initWithFrame:frameRect]; } return self; } - (void)drawRect:(NSRect)dirtyRect { [[NSColor grayColor] set]; [subView setFrame:NSMakeRect(10, 10, dirtyRect.size.width - 20, 500)]; [self addSubview:subView]; } - (BOOL)isFlipped { return YES; } And the subview is just: - (void)drawRect:(NSRect)dirtyRect { [[NSColor blackColor] set]; [NSBezierPath strokeRect:dirtyRect]; } - (BOOL)isFlipped { return YES; }

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  • Drawing a PDF Right-Side-Up in CGContext

    - by Carter Allen
    I'm overriding the drawRect: method in a custom UIView, and I'm doing some custom drawing. All was going well, until I needed to draw a PDF resource (a vector glyph, to be precise) into the context. First I retrieve the PDF from a file: NSURL *pdfURL = [NSURL fileURLWithPath:[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"CardKit.bundle/A.pdf"]]; CGPDFDocumentRef pdfDoc = CGPDFDocumentCreateWithURL((CFURLRef)pdfURL); CGPDFPageRef pdfPage = CGPDFDocumentGetPage(pdfDoc, 1); Then I create a box with the same dimensions as the loaded PDF: CGRect box = CGPDFPageGetBoxRect(pdfPage, kCGPDFArtBox); Then I save my graphics state, so that I don't screw anything up: CGContextSaveGState(context); And then I perform a scale+translate of the CTM, theoretically flipping the whole context: CGContextScaleCTM(context, 1.0, -1.0); CGContextTranslateCTM(context, 0.0, rect.size.height); I then scale the PDF so that it fits into the view properly: CGContextScaleCTM(context, rect.size.width/box.size.width, rect.size.height/box.size.height); And finally, I draw the PDF and restore the graphics state: CGContextDrawPDFPage(context, pdfPage); CGContextRestoreGState(context); The issue is that there is nothing visible drawn. All this code should theoretically draw the PDF glyph into the view, right? If I remove the scale+translate used to flip the context, it draws perfectly: it just draws upside-down. Any ideas?

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  • Schedule timer with NSTimer makes the task run faster than expected

    - by Hoang Pham
    I schedule a timer with NSTimer's function in viewWillAppear as follows: minutesTimer = nil; minutesTimer = [NSTimer scheduledTimerWithTimeInterval:60 target:self selector:@selector(updateScrollViewItems) userInfo:NULL repeats:YES]; With this function call, I expect it to call the selector updateScrollViewItems every minute, but it does not, it update items faster than expected (around some seconds). What is the cause of this unexpected behavior?

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  • NSURL Connection will/won't load data

    - by jkap
    So here's my issue: I followed the NSURLConnection tutorial in the iPhone Developer Documentation almost to the T, and it only kinda works. Here's where it all goes wrong: The object seems to be created correctly and delegates to connectionDidFinishLoading, but with any URL I try to load the response data always ends up only being 0 bytes. I am running in the simulator if that makes any difference. Here's my relevant code: - (void)viewDidLoad { [super viewDidLoad]; self.title = @"WVFS Player"; //create a request NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://wvfs.josh-kaplan.com/nowPlaying.php"] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; // create a connection NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; if(theConnection) { // create the datum responseData=[[NSMutableData data] retain]; } else { // code this later } } - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { [responseData setLength:0]; } - (void)connectionDidFinishLoading:(NSURLConnection *)connection { // make it work NSLog(@"Succeeded! Received %d bytes of data:",[responseData length]); // release it [connection release]; [responseData release]; } And here's my log output: [Session started at 2010-03-14 09:01:09 -0400.] 2010-03-14 09:01:14.784 WVFS[19571:207] Succeeded! Received 0 bytes of data: Any ideas? Thanks, Josh

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