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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 make the scroll view for iphone

    - by siva
    HI May i know how to make the scroll view as mentioned in this following URL. http://developer.apple.com/IPhone/library/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/TextandWeb/TextandWeb.html Thanks in advance!!

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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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  • Correct way to clear/release an array of arrays

    - by iFloh
    And again my array of arrays .... When I have an array "x" that contains multiple instances of an array "y", how do I clear/release it without risking memory leaks? are the following calls sufficient? (a) clearing the array [x removeAllObjects]; (b) releasing the array [x release]; or do I need to enumerate the array, such as: (c) clearing the array for(int i=0;i<x.count;i++) [[x objectAtIndex:i] release]; [x removeAllObjects]; (d) releasing the array for(int i=0;i<x.count;i++) [[x objectAtIndex:i] release]; [x release]; thanks in advance

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  • iPhone/iPad - issues with NavigationBar button ?

    - by user532445
    I my application i have added button in NavigationBar like this.. UIBarButtonItem *more=[[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"search-25by25.png"] style:UIBarButtonItemStylePlain target:self action:@selector(SelectMission:)]; self.navigationItem.rightBarButtonItem = more; When i am clicking on button application get's shutdown... If i am doing same thing with normal button it's working fine can any one help me why it's behaving like this?

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  • problem with iOS 4.2 when user press the list view item to go to UIwebview page and the navigation button disappears on the second visit

    - by seahorse
    My app is a Navigation based application. The main menu contains the list view items. if I clicks one of them, it goes to next view which in this case take me to UIwebview embedded web site. Everything is looking great. I can view the content of web page, the navigation control back button which takes to the main menu if I press it. However, I'm having issue when I try to go back to main menu if i visit that subview the second time. It loads the content of UIwebview web page, but the navigation button is gone and won't let me go back to main menu. This problem only appears on latest iOS 4.2 version. Otherwise it works great on 3.1 to 4.1. I would appreciate any hints or inputs. Note this seems not working for subview using UIWebview embedded web content. I don't have any issue with other subviews

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  • Can Settings bundle use values from application's Info.plist file?

    - by delirus
    Hi, is it possible to use values from application's Info.plist file as DefaultValue value for items in Settings.bundle? For example CFBundleVersion. I've tried entering it as ${CFBundleVersion} but it didn't work. I've also tried changing DefaultValue type but with no success. Any ideas? The reasons behind are simple: CFBundleVersion is known at compile time, so I won't have to take its value from application's mainBundle and then apply that value to NSUserDefaults. Other reason is that just after installing the app, but before running it, Settings bundle values are not in-sync as the code setting NSUserDefaults did not have a chance to execute itself... so it would be boring to always remember that I have to change my Settings bundle values manually.

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  • How to Smooth the drawing Stroke?

    - by user1852420
    I am creating drawing.. i can undo, and put colors on it. but when i draw using my fingers the stroke is not that smooth and has edge lines,, here my codes. on which I can Paint on a view, Undo, change color, and the opacity. stroke.h #import <UIKit/UIKit.h> @interface stroke : UIView{ NSMutableArray *strokeArray; UIColor *strokeColor; int strokeSize; float strokeAlpha; int strokeAlpha2; IBOutlet UISlider *slides; float red; float green; float blue; CGPoint mid1; CGPoint mid2; CGPoint endingPoint,previousPoint1,previousPoint2; CGPoint currentTouch; } @property (nonatomic, retain) UIColor *strokeColor; @property (nonatomic) int strokeSize; @property (nonatomic, retain) NSMutableArray *strokeArray; - (IBAction)changeAlphaValue; -(void)loadSLider; -(void)blueColor; -(void)darkvioletColor; -(void)violetColor; -(void)pinkColor; -(void)darkbrownColor; -(void)redColor; -(void)magentaRedColor; -(void)lightBrownColor; -(void)lightOrangeColor; -(void)OrangeColor; -(void)YellowColor; -(void)greenColor; -(void)lightYellowColor; -(void)darkGreenColor; -(void)TurquioseColor; -(void)PaleTurquioseColor; -(void)skyBlueColor; -(void)whiteColor; -(void)DirtyWhiteColor; -(void)SilverColor; -(void)LightGrayColor; -(void)GrayColor; -(void)LightBlackColor; -(void)BlackColor; @end stroke.m #import "stroke.h" @implementation stroke @synthesize strokeColor; @synthesize strokeSize; @synthesize strokeArray; - (void) awakeFromNib{ self.strokeArray = [[NSMutableArray alloc] init]; self.strokeColor = [UIColor colorWithRed:0 green:0 blue:232 alpha:1]; self.strokeSize = 3; } - (void)drawRect:(CGRect)rect{ NSMutableArray *stroke; for (stroke in strokeArray) { CGContextRef contextRef = UIGraphicsGetCurrentContext(); CGContextSetLineWidth(contextRef, [[stroke objectAtIndex:1] intValue]); CGFloat *color = CGColorGetComponents([[stroke objectAtIndex:2] CGColor]); CGContextSetRGBStrokeColor(contextRef, color[0], color[1], color[2], color[3]); CGContextBeginPath(contextRef); CGPoint points[[stroke count]]; for (NSUInteger i = 3; i < [stroke count]; i++) { points[i-3] = [[stroke objectAtIndex:i] CGPointValue]; } CGContextAddLines(contextRef, points, [stroke count]-3); CGContextStrokePath(contextRef); } } -(void)loadSLider{ } - (IBAction)changeAlphaValue{ strokeAlpha2 =((int)slides.value); } -(void)blueColor{ red = 0/255.0; green = 0/255.0; blue = 255/255.0; } -(void)darkvioletColor{ red = 75/255.0; green = 0/255.0; blue = 130/255.0; } -(void)violetColor{ red = 128/255.0; green = 0/255.0; blue = 128/255.0; } -(void)pinkColor{ red = 255/255.0; green = 0/255.0; blue = 255/255.0; } -(void)darkbrownColor{ red = 0.200; green = 0.0; blue = 0.0; } -(void)redColor{ red = 255/255.0; green = 0/255.0; blue = 0/255.0; } -(void)magentaRedColor{ red = 0.350; green = 0.0; blue = 0.0; } -(void)lightBrownColor{ red = 0.480; green = 0.0; blue = 0.0; } -(void)lightOrangeColor{ red = 0.600; green = 0.200; blue = 0.0; } -(void)OrangeColor{ red = 1.0; green = 0.300; blue = 0.0; } -(void)YellowColor{ red = 0.950; green = 0.450; blue = 0.0; } -(void)greenColor{ red = 0.0; green = 1.0; blue = 0.0; } -(void)lightYellowColor{ red = 1.0; green = 1.0; blue = 0.0; } -(void)darkGreenColor{ red = 0.0; green = 0.500; blue = 0.0; } -(void)TurquioseColor{ red = 0.0; green = 0.700; blue = 0.200; } -(void)PaleTurquioseColor{ red = 0.0; green = 0.700; blue = 0.600; } -(void)skyBlueColor{ red = 0.0; green = 0.400; blue = 0.800; } -(void)whiteColor{ red = 1.0; green = 1.0; blue = 1.0; } -(void)DirtyWhiteColor{ red = 0.800; green = 0.800; blue = 0.800; } -(void)SilverColor{ red = 0.600; green = 0.600; blue = 0.600; } -(void)LightGrayColor{ red = 0.500; green = 0.500; blue = 0.500; } -(void)GrayColor{ red = 0.300; green = 0.300; blue = 0.300; } -(void)LightBlackColor{ red = 0.150; green = 0.150; blue = 0.150; } -(void)BlackColor{ red = 0.0; green = 0.0; blue = 0.0; } - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch; NSEnumerator *counter = [touches objectEnumerator]; while ((touch = (UITouch *)[counter nextObject])) { switch (strokeAlpha2) { case 1: strokeAlpha = .1; break; case 2: strokeAlpha = .2; break; case 3: strokeAlpha = .3; break; case 4: strokeAlpha = .4; break; case 5: strokeAlpha = .5; break; case 6: strokeAlpha = .6; break; case 7: strokeAlpha = .7; break; case 8: strokeAlpha = .8; break; case 9: strokeAlpha = .9; break; case 10: strokeAlpha = 1; break; default: strokeAlpha = 1; break; } self.strokeColor = [UIColor colorWithRed:red green:green blue:blue alpha:strokeAlpha]; NSValue *touchPos = [NSValue valueWithCGPoint:[touch locationInView:self]]; UIColor *color = [UIColor colorWithCGColor:strokeColor.CGColor]; NSNumber *size = [NSNumber numberWithInt:strokeSize]; NSMutableArray *stroke = [NSMutableArray arrayWithObjects: touch, size, color, touchPos, nil]; [strokeArray addObject:stroke]; } } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch; NSEnumerator *counter = [touches objectEnumerator]; while ((touch = (UITouch *)[counter nextObject])) { NSMutableArray *stroke; for (stroke in strokeArray) { if ([stroke objectAtIndex:0] == touch) { [stroke addObject:[NSValue valueWithCGPoint:[touch locationInView:self]]]; } [self setNeedsDisplay]; } } } @end

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  • UIBezierPath too many paths = too slow?

    - by HHHH
    I have a loop in which I'm adding many (10000+) lines to a UIBezierPath. This seems to be fine, but once I try and render the bezierpath, my device becomes extremely slow and jerky. Is this because I've added too many lines to my path? Adding lines to UIBezierPath - simplified: (this seems fine) [path moveToPoint:CGPointZero]; for (int i = 0; i < 10000; i++ ) { [path addLineToPoint:CGPointMake(i, i)]; } Rendering BeizerPath (Suggested by Rob) - this seems slow. - (void)drawBezierAnimate:(BOOL)animate { UIBezierPath *bezierPath = path; CAShapeLayer *bezier = [[CAShapeLayer alloc] init]; bezier.path = bezierPath.CGPath; bezier.strokeColor = [UIColor blueColor].CGColor; bezier.fillColor = [UIColor clearColor].CGColor; bezier.lineWidth = 2.0; bezier.strokeStart = 0.0; bezier.strokeEnd = 1.0; [self.layer addSublayer:bezier]; if (animate) { CABasicAnimation *animateStrokeEnd = [CABasicAnimation animationWithKeyPath:@"strokeEnd"]; animateStrokeEnd.duration = 100.0; animateStrokeEnd.fromValue = [NSNumber numberWithFloat:0.0f]; animateStrokeEnd.toValue = [NSNumber numberWithFloat:1.0f]; [bezier addAnimation:animateStrokeEnd forKey:@"strokeEndAnimation"]; } } Qs: 1) Is this because I'm adding too many paths too quickly? 2) I want to eventually draw many different lines of different colors, so I assume I would need to create multiple (10000+) UIBezierPaths - would this help or greatly slow the device as well? 3) How would I get around this? Thanks in advance for your help.

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  • IPhone library project + UIViews

    - by sig
    I'm trying to refactor some of my iphone code into a library project that can be linked to by several different applications. I made a new iphone library project and copied over some of my classes there, but the project can't build because it doesn't know about stuff like UIView or CGRect. I added in the UIKit, CoreGraphics, and QuartzCore frameworks, but still no go. What am I missing?

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  • UIPickerView in iphone

    - by Harita
    hi, i am making an application of iphone, in which i have a table view, on every row of table view i have created a button programmatically & on its click method am showing picker view. Picker view showing perfectly, on picker view's toolbar i have 2 barbuttonitem named Done & Cancel. i have added below code in Picker view's delegate method but button title is not changing with this delegate method static int _selectedRow; -(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component { NSString *title = [pickarray objectAtIndex:_selectedRow]; //[pickarray removeObjectAtIndex:_selectedRow]; [pickarray insertObject:title atIndex:_selectedRow]; [table reloadData]; } Any ideas how to show selected row title on button?

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  • iPhone Accelerometer Values

    - by Mike
    My question is about the iPhone accelerometer. Does the accelerometer measure acceleration or movement of the iPhone? What I mean is if I hold the iPhone and go from 0mph to 60mph, I would expect the measure of acceleration to increase in value from 0 to 60, but once I reach 60, I expect the value to return to 0 since I am "no longer accelerating" but am moving at a constant speed. Now if the accelerometer measure motion, I would expect it to register 0 to 60 and continue to provide a change in value as I move forward at 60mph. Sorry, I looked at a few books, programmed some code (values seemed to small to give a recognizable result over short distances or speeds), and a lot of web searches, and I am trying to get an answer to this question. Thanx!

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  • Soundboard app: Play sound as long as the user is pressing the button

    - by Pantelis Proios
    I am making a soundboard app and i am using sounds with over 30sec duration. I am playing the sound by connecting in IB my action with a "touch down" event, however the sound keeps playing once started. I connected in the some button a "touch cancel" & "touch up outside" event that is supposed to stop the sound but for some reason it doesn't. Can anybody provide a solution to my problem? ---Edit--- Here is my code: -(IBAction)playSound:(id)sender { NSString *soundFile; soundFile = [[NSBundle mainBundle] pathForResource:@"testSound" ofType:@"mp3"]; audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:soundFile] error:nil]; audioPlayer.volume = volumeSlider.value; audioPlayer.numberOfLoops = -1; [audioPlayer prepareToPlay]; [audioPlayer play]; } -(IBAction)stopSound:(id)sender { [audioPlayer stop]; }

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  • NSUserDefaults with in-app Settings bundle

    - by Hema Vasudevan
    I'm in the process of building an app and would prefer to have an in-app specific Settings bundle rather than make it available in the Settings application. I'm using NSUserDefaults class to save and retrieve them but would like to have the same Settings app look and feel. I wanted to use InAppSettingsKit or the llamasettings but don't know how to use the NSUserDefaults class. Those kits tell me how to create a .plist file and use their kits. All I need is use the Settings app look and feel while at the same time use NSUserDefaults class to save and retrieve values. Please help.

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  • Adding procedural C openGL functions to an iPhone project

    - by user309595
    I want to add a few drawing functions to an iPhone project for drawing things. Something like drawTile(x,y,len,wid); which would call openGL to draw a box somewhere. I should just be able to write a procedural C file to do this but the openGL libraries are objective C and I'm getting weird errors. Do I have to make a class for all of my drawing commands and call class methods?

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  • how to slove error when using thread?

    - by ChandreshKanetiya
    I have following error msg in console when using NSThread "Tried to obtain the web lock from a thread other than the main thread or the web thread. This may be a result of calling to UIKit from a secondary thread. Crashing now..." I have submit my sample code here - (void)viewDidLoad { appDeleg = (NewAshley_MedisonAppDelegate *)[[UIApplication sharedApplication] delegate]; [[self tblView1] setRowHeight:80.0]; [super viewDidLoad]; self.title = @"Under Ground"; [UIApplication sharedApplication].networkActivityIndicatorVisible = YES; [NSThread detachNewThreadSelector:@selector(CallParser) toTarget:self withObject:nil]; } -(void)CallParser { Parsing *parsing = [[Parsing alloc] init]; [parsing DownloadAndParseUnderground]; [parsing release]; [self Update_View]; //[myIndicator stopAnimating]; [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; } here "DownloadAndParseUnderground" is the method of downloding data from the rss feed and -(void) Update_View{ [self.tblView1 reloadData]; } when Update_View method is called the tableView reload Data and in the cellForRowAtIndexPath create error and not display custom cell - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; CustomTableviewCell *cell = (CustomTableviewCell *) [tblView1 dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { [[NSBundle mainBundle] loadNibNamed:@"customCell" owner:self options:nil]; cell = objCustCell; objCustCell = nil; }

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  • Google maps in iPhone - city & State name by Longitude & Latitude

    - by sugar
    I have developed an application in which the data About Schools are stored in ASP.NET Web Server. The database has following values. =School Name = Longitude of School = Latitude of School. Now, I retrieve all the data in iPhone through web-service & NSURLRequest. Now, Following is my Problem. When user Clicks on a school ( in tableView ). Google map should be load - ( i can do that ) A pin should be dropped at the place - ( i can do that ) A pin title should be with City & State name - ( i can't do ) Thanks in advance for helping me.

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  • Why do touches only get detected ABOVE my CCBitmapFontAtlas and not ON it? (cocos2d)

    - by RexOnRoids
    I am detecting touches for CCBitmapFontAtlas (just text labels) as shown in the code below. But it seems that touches are only detected slightly ABOVE the CCBitmapFontAtlases? Did something get screwed when converting between coordinate systems? (*Note objects label1, label2, etc are CCBitmapFontAtlas) - (void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { for( UITouch *touch in touches ) { CGPoint location = [touch locationInView:[touch view]]; location = [[CCDirector sharedDirector] convertToGL:location]; self.myGraphManager.isSliding = NO; CGRect rectLabel1 = CGRectMake(label1.position.x, label1.position.y, label1.contentSize.width, label1.contentSize.height); CGRect rectLabel2 = CGRectMake(label2.position.x, label2.position.y, label2.contentSize.width, label2.contentSize.height); CGRect rectLabel3 = CGRectMake(label3.position.x, label3.position.y, label3.contentSize.width, label3.contentSize.height); CGRect rectLabel4 = CGRectMake(label4.position.x, label4.position.y, label4.contentSize.width, label4.contentSize.height); CGRect rectLabel5 = CGRectMake(label5.position.x, label5.position.y, label5.contentSize.width, label5.contentSize.height); CGRect rectLabel6 = CGRectMake(label6.position.x, label6.position.y, label6.contentSize.width, label6.contentSize.height); if(CGRectContainsPoint(rectLabel1, location)){ NSLog(@"Label 1 Touched"); }else if(CGRectContainsPoint(rectLabel2, location)){ NSLog(@"Label 2 Touched"); }else if(CGRectContainsPoint(rectLabel3, location)){ NSLog(@"Label 3 Touched"); }else if(CGRectContainsPoint(rectLabel4, location)){ NSLog(@"Label 4 Touched"); }else if(CGRectContainsPoint(rectLabel5, location)){ NSLog(@"Label 5 Touched"); }else if(CGRectContainsPoint(rectLabel6, location)){ NSLog(@"Label 6 Touched"); } } }

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  • Back Bar button problem

    - by user342804
    I have a Modal View Controller. I would like to navigate to another page and then back. It is not a navigation controller. What should I do now?Should I place an UIButton Item or a Navigation Item on the navigation Bar?

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