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  • To store images from UIGetScreenImage() in NSMutable Array

    - by sujyanarayan
    Hi, I'm getting images from UIGetScreenImage() and storing directly in mutable array like:- image = [UIImage imageWithScreenContents]; [array addObject:image]; [image release]; I've set this code in timer so I cant use UIImagePNGRepresentation() to store as NSData as it reduces the performance. I want to use this array directly after sometime i.e after capturing 1000 images in 100 seconds. When I use the code below:- UIImage *im = [[UIImage alloc] init]; im = [array objectAtIndex:i]; UIImageWriteToSavedPhotosAlbum(im, nil, nil, nil); the application crashes. And I dont want to use UIImagePNG or JPGRepresentation() in timer as it reduces performance. My problem is how to use this array so that it is converted into image. If anybody has idea related to it please share with me. Thanks in Advance.

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  • add button to navigationbar programatically

    - by mac
    Hi i need to set the button on right side, in navigation bar, programatically , so that if i press the button i will perform some actions, i have created the navigation bar,programatically by navBar=[[UINavigationBar alloc]initWithFrame:CGRectMake(0,0,320,44) ]; similarly i need to add the button , right side of this navigation bar,for that i used, 1) UIView* container = [[UIView alloc] init]; // create a button and add it to the container UIButton* button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 130, 44.01)]; [container addSubview:button]; [button release]; // add another button button = [[UIButton alloc] initWithFrame:CGRectMake(160, 0, 50, 44.01)]; [container addSubview:button]; [button release]; // now create a Bar button item UIBarButtonItem* item = [[UIBarButtonItem alloc] initWithCustomView:container]; // set the nav bar's right button item self.navigationItem.rightBarButtonItem = item; [item release]; 2) UIImage *im; im=[UIImage imageNamed:@"back.png"]; [button setImage:im forState:UIControlStateNormal]; [im release]; backButton = [[UIBarButtonItem alloc] initWithCustomView:button]; [backButton setImageInsets:UIEdgeInsetsMake(0, -10,5, 5)]; [self.navigationItem setRightBarButtonItem:backButton]; 3) UIBarButtonItem *refreshItem = [[UIBarButtonItem alloc] initWithTitle:@"button" style:UIBarButtonItemStylePlain target:self action:@selector(refreshLogsAction:)]; self.navigationItem.rightBarButtonItem = refreshItem; [refreshItem release]; i tried all these type of codings , no use, these codes are not displaying the button at rigth side,please help me. thanks in advance,

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  • Best practice to pass a value from pop over control on iPad.

    - by Tattat
    It is an iPad app based on SDK 3.2. I have a MainUIView, that is subclass from UIView, it have a UIButton and a UILabel. When user press the UIButton, the pop over control will be appeared with a table view. When the user select a cell from the table view, the UILabel changes content base on the user click, and the pop up table view will disappear. The question is, how can I pass the "selected cell" to the UILabel. I am thinking making a "middle man" object. When the user click the UIButton, and the "middle man" will pass to the table. When the cell is selected, the "middle man" will store the idx, and call the UILabel change content from the value of "middle man". But I think it is pretty complex to implement, is there any easier way to implement it? thz u.

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  • How to include other controls in a scrollbar?

    - by Paperflyer
    I want to create a scrollview with a zooming control and a button next to the scrollbar. Sort of like the "tile window" button in XCode (top right corner of the editor), it should be in the same box that usually is used by the scrollbar only. Do you have an idea of how to approach this? I was thinking to use an NSScrollView and set the scrollbars to a custom subclass of NSScroller which includes the other widgets. What kinds of buttons use the same style as the scrollbar?

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  • How to use NSObject to URLs with three20 properly

    - by Frank
    Basically i map my controllers to accept the address class to be passed into the listingpage controller. Which is done here: [map from:@"tt://listingPage/(initWithResult:)" toViewController:[ListingPageController class]]; [map from:[Address class] name:@"result" toURL:@"tt://listingPage/(initWithResult:)"]; This url is being used in my table item which I am has been invoked here: for (Address *result in [(id<SearchResultsModel>)self.model results]) { NSString* url = [result URLValueWithName:@"result"]; TTTableImageItem* tii = [TTTableMessageItem itemWithTitle:[result addressText] caption:[result addressText] text:[result subText] imageURL:[result image] URL:url]; [self.items addObject:tii]; } My app crashes, I am not sure why, seems to be getting an invalidate view. any help would be much appreciated.

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  • How to add Button in UINavigationController

    - by Ali
    Hi all , navigator=[[UINavigationController alloc]initWithRootViewController:contacts]; UIBarButtonItem *nextButton = [[UIBarButtonItem alloc] initWithTitle:@"Delete" style:UIBarButtonItemStyleBordered target:self action:@selector(makeCall)]; //[[self.navigator navigationItem] setLeftBarButtonItem:nextButton]; self.navigator.navigationBar.items=[NSArray arrayWithObject:nextButton]; I am adding a button to UINavigationController and got following exception please help me 2011-01-03 11:46:26.626 Appointment[2243:207] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Cannot call setItems:animated: directly on a UINavigationBar managed by a controller.' 2011-01-03 11:46:26.634 Appointment[2243:207] Stack: ( 3040

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  • IPhone OS 4.0 - Beta 3 - setContentURL on MPMoviePlayerViewController crashing the App

    - by Thom
    Hi Everyone. I had this issue, with the beta2 and I thought the beta3 was going to solve it, but I'm starting to think that I'm doing something wrong. I have a MPMoviePlayerViewController playing a video and when the video ends I'm trying to change the video for another like this: [moviePlayerViewController.moviePlayer setContentURL:newVideoURL]; The app crashes when it reaches this point. Any help/advice welcome :) Thanks Thomas

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  • How to remove NSString Related Memory Leaks?

    - by Rahul Vyas
    in my application this method shows memory leak how do i remove leak? -(void)getOneQuestion:(int)flashcardId categoryID:(int)categoryId { flashCardText = [[NSString alloc] init]; flashCardAnswer=[[NSString alloc] init]; //NSLog(@"%s %d %s", __FILE__, __LINE__, __PRETTY_FUNCTION__, __FUNCTION__); sqlite3 *MyDatabase; sqlite3_stmt *CompiledStatement=nil; NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *MyDatabasePath = [documentsDirectory stringByAppendingString:@"/flashCardDatabase.sqlite"]; if(sqlite3_open([MyDatabasePath UTF8String],&MyDatabase) == SQLITE_OK) { sqlite3_prepare_v2(MyDatabase, "select flashCardText,flashCardAnswer,flashCardTotalOption from flashcardquestionInfo where flashCardId=? and categoryId=?", -1, &CompiledStatement, NULL); sqlite3_bind_int(CompiledStatement, 1, flashcardId); sqlite3_bind_int(CompiledStatement, 2, categoryId); while(sqlite3_step(CompiledStatement) == SQLITE_ROW) { self.flashCardText = [NSString stringWithUTF8String:(char *)sqlite3_column_text(CompiledStatement,0)]; self.flashCardAnswer= [NSString stringWithUTF8String:(char *)sqlite3_column_text(CompiledStatement,1)]; flashCardTotalOption=[[NSNumber numberWithInt:sqlite3_column_int(CompiledStatement,2)] intValue]; } sqlite3_reset(CompiledStatement); sqlite3_finalize(CompiledStatement); sqlite3_close(MyDatabase); } } this method also shows leaks.....what's wrong with this method? -(void)getMultipleChoiceAnswer:(int)flashCardId { if(optionsList!=nil) [optionsList removeAllObjects]; else optionsList = [[NSMutableArray alloc] init]; sqlite3 *MyDatabase; sqlite3_stmt *CompiledStatement=nil; NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *MyDatabasePath = [documentsDirectory stringByAppendingString:@"/flashCardDatabase.sqlite"]; if(sqlite3_open([MyDatabasePath UTF8String],&MyDatabase) == SQLITE_OK) { sqlite3_prepare_v2(MyDatabase,"select OptionText from flashCardMultipleAnswer where flashCardId=?", -1, &CompiledStatement, NULL); sqlite3_bind_int(CompiledStatement, 1, flashCardId); while(sqlite3_step(CompiledStatement) == SQLITE_ROW) { [optionsList addObject:[NSString stringWithUTF8String:(char *)sqlite3_column_text(CompiledStatement,0)]]; } sqlite3_reset(CompiledStatement); sqlite3_finalize(CompiledStatement); sqlite3_close(MyDatabase); } }

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  • AVAudioPlayer working in Simulator, but not on device

    - by cannyboy
    My mp3 playing code is: NSError *error; soundObject = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:audioPathString] error:&error]; if (soundObject == nil) NSLog(@"%@", [error description]); soundObject.delegate = self; soundObject.numberOfLoops = 0; soundObject.volume = 1.0; NSLog(@"about to play"); [soundObject prepareToPlay]; [soundObject play]; NSLog(@"[soundObject play];"); The mp3 used to play fine, and it still does on the simulator. But not on the device. I've recently added some sound recording code (not mine) to the software. It uses AudioQueue stuff which is slightly beyond me. Does that conflict with AVAudioPlayer? Or what could be the problem? I've noticed that as soon as the audiorecording code starts working, I can't adjust the volume on the device anymore, so maybe it blocks the audio playback?. EDIT The solution seems to be to put this in my code. I put it in applicationDidFinishLaunching: [[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayAndRecord error: nil]; UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker; AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,sizeof (audioRouteOverride),&audioRouteOverride); The first line allows both play and record, whilst the other lines apparently reroute things to make the volume louder. All audio code is voodoo to me.

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  • How to change the font size gradually in a UILabel?

    - by Flocked
    Hello, is there a way to change the font size gradually in a UILabel? I tried it with: [UIView beginAnimations:@"foo" context:nil]; [UIView setAnimationDuration:0.8]; uiLabel.font = [UIFont boldSystemFontOfSize:144]; [UIView commitAnimations]; The problem is that the change of the font size happens instantly.

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  • Mac OS X: Getting detailed process information (specifically its launch arguments) for arbitrary run

    - by Jasarien
    I am trying to detect when particular applications are launched. Currently I am using NSWorkspace, registering for the "did launch application" notification. I also use the runningApplications method to get apps that are currently running when my app starts. For most apps, the name of the app bundle is enough. I have a plist of "known apps" that I cross check with the name of that passed in the notification. This works fine until you come across an app that acts as a proxy for launching another application using command line arguments. Example: The newly released Portal on the Mac doesn't have a dedicated app bundle. Steam can create a shortcut, which serves as nothing more than to launch the hl2_osx app with the -game argument and portal as it's parameter. Since more Source based games are heading to the Mac, I imagine they'll use the same method to launch, effectively running the hl2_osx app with the -game argument. Is there a nice way to get a list of the arguments (and their parameters) using a Cocoa API? NSProcessInfo comes close, offering an `-arguments' method, but only provides information for its own process... NSRunningApplication offers the ability to get information about arbitrary apps using a PID, but no command line args... Is there anything that fills the gap between the two? I'm trying not to go down the route of spawning an NSTask to run ps -p [pid] and parsing the output... I'd prefer something more high level.

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  • How do I set an array in one class with another array in another class

    - by Stef
    I've populated and array with data like this in one class... PowerClass.h NSMutableArray pickerArray; @property (nonatomic, retain) NSMutableArray pickerArray; - PowerClass.m @synthesize pickerArray; @implementation NSMutableArray *array = [[NSArray alloc] initWithObjects:@"stef", @"steve", @"baddamans", @"jonny", nil]; pickerArray = [NSMutableArray arrayWithArray:array]; And I'm trying to set the Array in another class WeekClass.h PowerClass *powerClass; NSMutableArray *pickerData; @property (nonatomic, retain) NSMutableArray pickerData; @property (nonatomic, retain) PowerClass *powerClass; WeekClass.m @implementation pickerData = [NSMutableArray arrayWithArray:powerClass.pickerArray]; I have no errors or warnings. It just crashes. The NSLog says that the powerClass.pickerArray is NULL. Please help point me in the right direction.

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  • Replicate UISegmentedControl with UIButtons - iPhone

    - by Sam
    Hi guys, I didnt like the style of UISegmentedControl, hence i tried to change the way it looked, but I couldnt attach images to its buttons. I just didnt change at all. Now i'm looking at how to replicate that function with 4 UIButtons. I've setup 4 UIButtons in interface builder, added different tag numbers to them. What i cannot accomplish is when a button is tapped, it should be "selected" and the other buttons should be Unselected. How can i connect all of them? And if there was a way to change the UISegmented control looks, i would need all this effort. thanks for the help guys this is for iPhone OS

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  • Change text of UIAlertView when recording a video with UIImagePickerController and reaching the videoMaximumDuration

    - by aimak
    I'd want to know how to change to text of the UIAlertView appearing when I record a video with a UIImagePickerController and I reach the videoMaximumDuration. If it is not possible to change the text of that UIAlertView, is it at least possible to display it in another language ? Edit : the default text is "The maximum length for this video has been reached" with title "Video Recording Stopped". Thank you, aimak

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  • Trying to parse twitter trends

    - by timothy5216
    Im trying to parse twitter trends but i keep getting a parser error at "as_of". anyone know why this is happening? EDIT: Here is the code im using NSMutableArray *tweets; tweets = [[NSMutableArray alloc] init]; NSURL *url = [NSURL URLWithString:@"http://search.twitter.com/trends/current.json"]; trendsArray = [[NSMutableArray alloc] initWithArray:[CCJSONParser objectFromJSON:[NSString stringWithContentsOfURL:url encoding:4 error:nil]]]; NSMutableDictionary *dict = [[NSMutableDictionary alloc] init]; for (int i = 0; i < [trendsArray count]; i++) { dict = [[NSMutableDictionary alloc] init]; //[post setObject: [[currentArray objectAtIndex:i] objectForKey:@"query"]]; [dict setObject:[trendsArray objectAtIndex:i] forKey:@"trends"]; //[dict setObject:[trendsArray objectAtIndex:i] forKey:@"query"]; //[post setObject:[trendsArray objectAtIndex:i] forKey:@"as_of"]; [tweets addObject:dict]; //post = nil; }

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  • ScriptingBridge causes iTunes to relaunch after quit

    - by Justin Voss
    I'm working on a Cocoa app that monitors what you're listening to in iTunes, and since I'm targeting Mac OS 10.5 and higher, I've decided to use Scripting Bridge. If I try to close iTunes too close to the time that my app polls it for the current track, iTunes will immediately relaunch! The only way to reliably prevent this behavior is to quit my app first, then quit iTunes. Switching to EyeTunes solves the problem, but it's a fairly old codebase and I was hoping that I could accomplish this without an external library. Surely I'm doing something wrong that's causing the relaunch? Here's some sample code; this snippet is run every few seconds, triggered by an NSTimer. #import "iTunesBridge.h" // auto-generated according to Apple's docs -(void)updateTrackInfo { iTunesApplication *iTunes = [[SBApplication alloc] initWithBundleIdentifier:@"com.apple.iTunes"]; iTunesTrack *currentTrack = [iTunes currentTrack]; // inspect currentTrack to determine what's being played... [iTunes release]; } Is this a known issue with Scripting Bridge, or am I using it incorrectly?

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  • UIView Controller mysteriously getting deallocated

    - by Dan Ray
    I have a UINavigation scheme with a "welcome" page, a middle page, and a detail page. In the middle page, there's a segmented controller that can swap the main body of that page between a table, a calendar, and a MKMapView, each implemented with their own view controller classes. Today I implemented the MapView and its annotations and all of that. It's nice. And a detail disclosure on each callout takes you to the detail page just the same way as if you'd gotten there via the table. Lovely. I also have a right-button-bar button that pushes in a "search" view. From there you can search the data I'm navigating. When it's done filtering the data (an array of objects I'm keeping in a data singleton), it makes the table reload its data, and calls my annotation-clearer-and-builder methods on the map view, and then pops itself out, so the "middle" page (including whatever view was in the guts of it) is back on the screen. Problem is, if I go back and forth between the map and the search a couple times, any mention of the table view causes us to crash with: *** -[CALayer retain]: message sent to deallocated instance 0x710b810. (I obviously have NSZombies turned on.) I put an NSLog in the dealloc method of my table view controller. That thing's never getting called. I don't know if we're ditching it behind the scenes for memory purposes, or if I'm leaking it and can't get my hands back on it, or what. I'm sort of at a loss about where to look. Any hints?

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  • How to auto-scroll UITableView?

    - by Sheehan Alam
    I am trying to do something interesting. I am pulling some JSON data and populating cells in a UITableView. How can I make the UITableView scroll ever second or so? I want to give the effect that as new data is coming in, the table is scrolling, so it is streaming. Any ideas?

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  • UILabel applying CGAffineTransformMakeRotation causing mysterious crash

    - by quantumpotato
    In -(id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil parentController:(GameViewController *)myGameController{ Have a series of transforming labels like so: deg90 = 1.570796326794897; //....transforms background.center = CGPointMake(160,230); background.transform = CGAffineTransformMakeRotation(deg90); BetLabel.text = @"test"; BetLabel.transform = CGAffineTransformMakeRotation(deg90); That last line is crashing me with: 2010-04-13 21:04:47.858 Game[1204:207] * Terminating app due to uncaught exception 'NSRangeException', reason: '* -[NSCFArray objectAtIndex:]: index (1) beyond bounds (1)' 2010-04-13 21:04:47.893 Game[1204:207] Stack: ( 864992541, 859229716, (lots of numbers) But if I comment it out, I get the text changing fine. Uh oh, just did a test.. turns out the other transforms were on UIImageViews. Apparently rotating a label in this xib is causing the crash. But in another file the transforms are working fine: newprofileentry.transform = CGAffineTransformMakeRotation(1.570796326794897); playerb0.transform = CGAffineTransformMakeRotation(1.570796326794897); playerb1.transform = CGAffineTransformMakeRotation(1.570796326794897); Tried substituting deg90 with the full float value, still the same crash. Tried cleaning cache, restarting IB and Xcode, cleaning all targets. Program has been running fine until I just added these labels. Tried deleting the label, readding and reconnecting the Outlet, too. Thanks for reading, hope someone has an idea about this. Cheers!

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  • UITextField keyboard difference between simulator and real device

    - by Raphael Pinto
    Hi, I am trying get float value with UITextField. On the simulator V3.1.3 in English, I have to use '.' to separate my float values. But on my Iphone 3GS V3.1.3 in French, I have to use ',' to separate them. If I use '.' on my Iphone 3GS, my float is troncated : 3.22222 = 3.0000000 Is there a solution to detect the language version and use the good separator automaticaly?

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