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  • is there a way to show Uitableviewcell selection on limited frame?

    - by Rahul Vyas
    i have a uitableview cell added some labels something like this - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; UIImage* myImage = [UIImage imageNamed:@"AccessoryForDealsMain.png"]; UIImageView *MyimageView = [[UIImageView alloc] initWithImage:myImage]; MyimageView.contentMode=UIViewContentModeScaleToFill; cell.accessoryView=MyimageView; [MyimageView release]; UILabel *BluePatti = [[UILabel alloc] init]; BluePatti.frame=CGRectMake(0,0,4,44); BluePatti.backgroundColor = BLUEPATTI;//[UIColor blueColor]; UILabel *BlackLine = [[UILabel alloc] init]; BlackLine.frame=CGRectMake(3,0,1, 45); BlackLine.backgroundColor = BLACK_LINE; [BluePatti addSubview:BlackLine]; [BlackLine release]; [cell.contentView addSubview:BluePatti]; [BluePatti release]; UILabel *Seperator = [[UILabel alloc] initWithFrame:CGRectZero]; Seperator.backgroundColor = [UIColor colorWithRed:234/256.0 green:234/256.0 blue:234/256.0 alpha:1.0]; //[UIColor lightGrayColor]; Seperator.frame = CGRectMake(4,43,316,1); [cell.contentView addSubview:Seperator]; [Seperator release]; } if(indexPath.section==5) { cell.textLabel.text=[self.GenderCellData objectAtIndex:indexPath.row]; cell.textLabel.textColor=CELL_TEXT_COLOR; cell.textLabel.font=CELL_FONT; } else { cell.textLabel.text=@"Cells"; cell.textLabel.font=CELL_FONT; } return cell; } now when i touch cell it shows blue selection above all subviews.How do i change selection frame and colour?

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  • obj-c problem setting array with componentsSeperatedByString

    - by Brodie4598
    I have a data source with about 2000 lines that look like the following: 6712,Anaktuvuk Pass Airport,Anaktuvuk Pass,United States,AKP,PAKP,68.1336,-151.743,2103,-9,A What I am interested in is the 6th section of this string so I want to turn it into an array, then i want to check the 6th section [5] for an occurrance of that string "PAKP" Code: NSBundle *bundle = [NSBundle mainBundle]; NSString *airportsPath = [bundle pathForResource:@"airports" ofType:@"dat"]; NSData *data = [NSData dataWithContentsOfFile:airportsPath]; NSString *dataString = [[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding] autorelease]; NSArray *dataArray = [dataString componentsSeparatedByString:@"\n"]; NSRange locationOfAirport; NSString *workingString = [[NSString alloc]initWithFormat:@""]; NSString *searchedAirport = [[NSString alloc]initWithFormat:@""]; NSString *airportData = [[NSString alloc]initWithFormat:@""]; int d; for (d=0; d < [dataArray count]; d=d+1) { workingString = [dataArray objectAtIndex:d]; testTextBox = workingString; //works correctly NSArray *workingArray = [workingString componentsSeparatedByString:@","]; testTextBox2 = [workingArray objectAtIndex: 0]; //correctly displays the first section "6712" testTextBox3 = [workingArray objectAtIndex:1] //throws exception index beyond bounds locationOfAirport = [[workingArray objectAtIndex:5] rangeOfString:@"PAKP"]; } the problem is that when the workingArray populates, it only populates with a single object (the first component of the string which is "6712". If i have it display the workingString, it correctly displays the entire string, but for some reason, it isn't correctly making the array using the commas. i tried it without using the data file and it worked fine, so the problem comes from how I am importing the data. ideas?

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  • What's a good way to remove all of the subviews of a UIScrollView?

    - by Moshe
    I have a scroll view and I need to reload the contents often while my app is running. Right now, I'm using the following line of code to remove the subviews before adding them back again: [scrollView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)]; Should I be using the following instead? scrollView.subviews = nil; For some reason, the (first) above line of code seems to crash the app every 16 times it is run. Am I leaking memory somewhere? The following method takes an array of views, the scroller (which is a constant) and the direction. Edit: - (void)loadViews:(NSArray *)views IntoScroller:(UIScrollView *)scroller withDirection:(NSString *)direction{ //Set up the scrollView [scrollView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)]; if([direction isEqualToString:@"horizontal"]){ scrollView.frame = CGRectMake(0, 0, 1024, 768); scrollView.contentSize = CGSizeMake(scrollView.frame.size.width * [[NSNumber numberWithUnsignedInt:[views count]] floatValue], scrollView.frame.size.height); }else if([direction isEqualToString:@"vertical"]){ scrollView.frame = CGRectMake(0, 0, 1024, 768); scrollView.contentSize = CGSizeMake(scrollView.frame.size.width, scrollView.frame.size.height * [[NSNumber numberWithUnsignedInt:[views count]] floatValue]); } for (int i=0; i<[[NSNumber numberWithUnsignedInt:[views count]] intValue]; i++) { [[[views objectAtIndex:[[NSNumber numberWithInt:i] unsignedIntValue]] view] setFrame:scrollView.frame]; if([direction isEqualToString:@"horizontal"]){ [[[views objectAtIndex:[[NSNumber numberWithInt:i] unsignedIntValue]] view] setFrame:CGRectMake(i * [[views objectAtIndex:[[NSNumber numberWithInt:i] unsignedIntValue]] view].frame.size.width, 0, scrollView.frame.size.width, scrollView.frame.size.height)];//CGRectMake(i * announcementView.view.frame.size.width, -scrollView.frame.origin.x, scrollView.frame.size.width, scrollView.frame.size.height)]; }else if([direction isEqualToString:@"vertical"]){ [[[views objectAtIndex:[[NSNumber numberWithInt:i] unsignedIntValue]] view] setFrame:CGRectMake(0, i * [[views objectAtIndex:[[NSNumber numberWithInt:i] unsignedIntValue]] view].frame.size.height, scrollView.frame.size.width, scrollView.frame.size.height)]; } [scrollView addSubview:[[views objectAtIndex:[[NSNumber numberWithInt:i] unsignedIntValue]] view]]; } }

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  • Core Data (NSFetchedResultsController) displaying one row per section

    - by Urizen
    I have a CoreData application which uses NSFetchedResultsController. NSFetchedResultsController is useful in that it allows me to access the fetched objects more easily etc. but I find that I have problems with the following: I get a crash when I display a single row for each section (irrespective of the number of actual rows present) as a summary of the information in that section (e.g. showing a statistical analysis of the data contained in the fetched rows for that section). I understand that the NSFetchedResultsControllerDelegatemethods have to agree with the number of rows reported per section by the UITableView Delegate method but I would like to be able to fetch all of the records for each section without necessarily displaying each of the rows. The above causes me inconsistency crashes, when I try to insert or delete data for a section, which reports that the number of rows for each section is not as it should be given the number of insertions/deletions. Is there any way I can do what I'm trying to achieve? Thanks for any help.

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  • Scroll UITableView so that the header isn't visible

    - by DASKAjA
    I've got a UITableView with a UISearchBar as the tableViews.tableHeaderView. Just like the new Mail.app, Notes.app, etc. in 3.0. I want to hide the SearchBar until the user drags it in his sight. My attempt only works when there're a couple of items in the tableView, so that the tableView actually wants to scroll. I call this in loadView: NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0]; [self._tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionTop animated:NO]; Nevertheless it seems that Apple handles such a serachbar differently. After draging out the searchbar it doesn't seem to be bounded to the tablecells anymore (in Notes.app, not in Mail.app). But perhaps Apple has a distinct method for that new 3.0 behaviour, and I just can't find it?

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  • Confused about copying Arrays in Objective-C

    - by Sheehan Alam
    Lets say I have an array X that contains [A,B,C,D,nil]; and I have a second array Y that contains [E,F,G,H,I,J,nil]; If I execute the following: //Append y to x [x addObjectsFromArray:y]; //Empty y and copy x [y removeAllObjects]; y = [x mutableCopy]; What is the value of y? is it?: [A,B,C,D,E,F,G,H,I,J,nil] Am I performing the copy correctly?

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  • Invalid argument exception - Navigation bar, tab bar, UIView.

    - by Tejaswi Yerukalapudi
    Class 1 has the following code that generates the exception - -(IBAction) searchAllAction: (id) sender { AddDiagSearchController *search = [[AddDiagSearchController alloc] initWithNibName:@"DiagSearch" bundle:nil]; [self.navigationController pushViewController:search animated:YES]; } the pushViewController part generates the following exception - 2010-04-14 14:03:31.060 Nav[10314:207] *** -[UIView addTarget:action:forControlEvents:]: unrecognized selector sent to instance 0x3956a80 And the class I'm trying to push has the following code. All the connections for IBOutlets were made through the interface builder. It's has a tableView, search text bar and a tabbar at the bottom and I'll be adding this to a UINavigationController. @interface AddDiagSearchController : UIViewController <UITableViewDataSource, UITableViewDelegate>{ UIBarButtonItem *quickAdd; UIBarButtonItem *searchAll; UITextField *searchTxt; } @property (nonatomic, retain) IBOutlet UITextField *searchTxt; -(IBAction) searchAllClicked:(id) sender; -(IBAction) quickAddClicked:(id) sender; -(IBAction) searchBtnClicked; -(IBAction) resignResponder: (id) sender; @end

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  • iPad Icon names?

    - by harekam_taj
    Hey Guys, Do I have to put 2 icon images in my build for iPad? and what are the names of those 2 build, one is Icon.png and what is the other one? Thanks for all your help

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  • What's a good 2D animation program for Linux (an alternative for e.g. Flash CS)?

    - by Martin Zeltin
    I don't mean the flash player here, I'm talking about the flash program that i can make animations with. Like Adoble Flash CS (formerly known as Macromedia flash). Is there a program on linux that i can make animations? I want to make a movie like animator vs animation. I used easy gif animator on windows lol it was a bit harder than flash but i'm on linux and I'd like to know what it has to offer. Worse case scenario, what gif animators are there on linux. :) Thanks!

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  • PlaySystemSound with mute switch on

    - by Sam V
    I know, I have to set the AudioSession to the 'playback' category, which allows audio even when the mute switch is on. This is what I do, but sound still gets muted when switch is on. UInt32 sessionCategory = kAudioSessionCategory_MediaPlayback; AudioSessionSetProperty(kAudioSessionProperty_AudioCategory,sizeof(sessionCategory), &sessionCategory); SystemSoundID soundID; NSString *path = [[NSBundle mainBundle] pathForResource:soundString ofType:@"wav"]; AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:path],&soundID); AudioServicesPlaySystemSound (soundID);

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  • My Core Animation block isn't working as I'd expect

    - by Alex Reynolds
    I have a UIView called activityView, which contains two subviews activityIndicator and cancelOperationsButton. These views are embedded in a XIB and wired up to my view controller. I have two methods that deal with activating (showing) and deactivating (hiding) these two subviews: - (void) enableActivityIndicator { [activityIndicator startAnimating]; [cancelOperationsButton setHidden:NO]; } - (void) disableActivityIndicator { [activityIndicator stopAnimating]; [cancelOperationsButton setHidden:YES]; } By themselves, these two methods work fine. To give this a bit of polish, I'd like to add an animation that fades these subviews in and out: - (void) enableActivityIndicator { [activityIndicator startAnimating]; [cancelOperationsButton setHidden:NO]; [UIView beginAnimations:@"fadeIn" context:nil]; [UIView setAnimationDelay:0.0f]; [UIView setAnimationDuration:1.0f]; [UIView setAnimationCurve:UIViewAnimationCurveEaseIn]; activityView.alpha = 1.0f; [UIView commitAnimations]; } - (void) disableActivityIndicator { [UIView beginAnimations:@"fadeOut" context:nil]; [UIView setAnimationDelay:0.0f]; [UIView setAnimationDuration:1.0f]; [UIView setAnimationCurve:UIViewAnimationCurveEaseOut]; activityView.alpha = 0.0f; [UIView commitAnimations]; [activityIndicator stopAnimating]; [cancelOperationsButton setHidden:YES]; } But the animations are not working — the subviews just show up or disappear without the parent view's alpha property having an effect on transparency. How should I write these methods to get the fade-in, fade-out effect I am after?

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  • Obj-C combining strings

    - by Brodie4598
    this must be such a simple problem but can someone tell me why this doesnt work: visibilityString1 = @"the"; visibilityString2 = @"end"; visibilityString = (@"This is %@ %@", visibilityString1, visibilityString2); Every time I try to combine strings this way, it will only return the second string so what I get is: end

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  • How to pull UIImages from NSData from a socket.

    - by Jus' Wondrin'
    Hey all! I'm using ASyncSocket to move some UIImages from one device over to another. Essentially, on one device I have: NSMutableData *data = UIImageJPEGRepresentation(image, 0.1); if(isRunning){ [sock writeData:data withTimeout:-1 tag:0]; } So a new image will be added to the socket every so often (like a webcam). Then, on the other device, I am calling: [listenSocket readDataWithTimeout:1 tag:0]; which will respond with: - (void)onSocket:(AsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag { [responseData appendData:data]; [listenSocket readDataWithTimeout:1 tag:0]; } Essentially, what I want to be able to do is have an NSTimer going which will call @selector(PullImages): -(void) PullImages { In here, I want to be able to pull images out of ResponseData. How do I do that? There might not be a complete image yet, there might be multiple images, there might be one and a half images! I want to parse the NSData into each existing image! } Any assistance? Thanks in advance!

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  • Get next record with Core Data

    - by Sebastian
    Hey, I have a tableview which content is managed through core data. When I select a row, a details view is pushed in and shows more information. How can I jump to the next record (the one below the one I selected in the tableview before) through a "next" button in the view ? Same for a previous button, but that should be very similar ... thx a lot ! Sebastian

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  • Custom TableViewCell with TextField and first responder

    - by Robb
    I have a custom TableView cell that contains a TextField and I want it to become the first responder as soon as the view is shown but [textcell.textfield becomeFirstResponder] does not work. I know it's because it's a custom cell in another class and I even tried it there and it didn't work. Anyone know how to pull this off? Thanks...

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  • UIAlertView won't rotate to landscape even with applicationDidFinishLaunching call

    - by Joey
    I am trying to use UIAlertView on my landscape right (home button on the right) app but it is showing up in portrait orientation. I have tried putting: [[UIApplication sharedApplication] setStatusBarOrientation: UIInterfaceOrientationLandscapeRight animated: NO ]; in applicationDidFinishLaunching, but it doesn't work. Are there any other usual suspects to what might be causing this? I am setting the orientation through my plist file currently.

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  • Good Learning Method for Objective-C?

    - by Josh Kahane
    Hi I know this must be asked a millions times and can't be easy to answer as there is o definitive method, but any help would be appreciated, thanks. I have been playing around with all sorts of things in Xcode and with Objective-C, however I can't seem to find a good way of learning things in an efficient way. I have bought the book 'Programming in Objective-C 2.0' and its great but just lays down the basics it seems. I want to learn in the 2D game development direction, then of course 3D after nailing that, if thats the right thing to do? I am 17 currently in year 13, last year of school/A Levels and am almost definitely taking a gap year. Any good, well known reputable courses online or offline (real world)? This is my first programming language, and I am absolutely serious about learning this. One last question, is when learning things online, I have in the past started building a feature and learning a certain aspect in programming only to find out after adding more its slows down the app or its to inefficient. Is the key to use a certain method in a certain situation (being os many ways to do the same thing) or use any of those methods and refine it in your app to make it run smoothly? Sorry, its hard for me to know when I have little experience, thus far. Sorry for rambling on! I would appreciate any help, thank you!

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  • How to switch from Core Data automatic lightweight migration to manual?

    - by Jaanus
    My situation is similar to this question. I am using lightweight migration with the following code, fairly vanilla from Apple docs and other SO threads. It runs upon app startup when initializing the Core Data stack. NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption, [NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil]; NSError *error = nil; NSString *storeType = nil; if (USE_SQLITE) { // app configuration storeType = NSSQLiteStoreType; } else { storeType = NSBinaryStoreType; } persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]]; // the following line sometimes crashes on app startup if (![persistentStoreCoordinator addPersistentStoreWithType:storeType configuration:nil URL:[self persistentStoreURL] options:options error:&error]) { // handle the error } For some users, especially with slower devices, I have crashes confirmed by logs at the indicated line. I understand that a fix is to switch this to manual mapping and migration. What is the recipe to do that? The long way for me would be to go through all Apple docs, but I don't recall there being good examples and tutorials specifically for schema migration.

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  • Navigation Controller Views in Landscape

    - by Mahadevan S
    Hi, I have set up a navigation controller ( navController ) in Portrait mode to which I push all the viewcontrollers I have. Now when a user switches to Landscape mode, I need to display all the views as a coverflow. For this I use [navController viewControllers] to get all the view controllers in the stack. In the Landscape view controller NSArray * arr = [navController viewControllers]; self.view = [arr objectAtIndex:0]; [arr objectAtIndex:0]; returns the correct view ( the bottombost viewcontroller's view in the nav stack ). My problem is these views never get displayed ie the views extracted from the navController never gets displayed. If i try to create a new view and insert all the subviews of a view, it gets displayed. eg : UIView * newView = [[UIView alloc] init]; for (UIView *subView in [arr objectAtIndex:0]) [newView addSubView:subView]; self.view = newView; The above piece of code works. But simply adding the view doesnt seem to work.. Can anyone explain the solution? Many thanks

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  • How do I use a modalViewController Identically in Two Controllers?

    - by Theory
    I'm using the Three20 TTMessageController in my app. I've figured out how to use it, adding on a bunch of other stuff (including TTMessageControllerDelegate methods and ABPeoplePickerNavigationControllerDelegate methods). It works great for me, after a bit of a struggle to figure it out. The trouble I'm having now is a design issue: I want to use it identically in two different places, including with the same delegate methods. My current approach is that I've put all the code into a single class inheriting from NSObject, called ComposerProxy, and I'm just having the two controllers that use it use the proxy, like so: ComposerProxy *proxy = [[ComposerProxy alloc] initWithController:this]; [proxy go]; The go method constructs the TTMessageController, configures it, adds it to a UINavigationController, and presents it: [self.controller presentModalViewController: navController animated: YES]; This works great, as I have all my code nicely encapsulated in ComposerProxy and I need only the above two lines anywhere I want to use it. The downside, though, is that I can't dealloc the proxy variable without getting crashes. I can't autorelease it, either: same problem. So I'm wondering if my proxy approach is a poor one. How does one normally encapsulate a bunch of behaviors like this without requiring a lot of duplicate code in the classes that use it? Do I need to add a delegate class to my ComposerProxy and make the controller responsible for dismissing the modal view controller in a hypothetical composerDidFinish method or some such? Many TIA!

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  • How to check a local wifi connection

    - by Thomas Joos
    hi all, I'm writing an app which connects to a static ip adress in a local network. How can I check if I have a local network connection? I want to connect to http://192.168.2.5 and i tried using the Rechability class but it returns FALSE, while the device is definately connected ( when i don't do the check, the app works fine so there is a connection ): Reachability *r = [Reachability reachabilityWithHostName:@"http://192.168.2.5"]; NetworkStatus internetStatus = [r currentReachabilityStatus]; How should work this out? Thomas

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  • I need to load a video stored in Applications folder in to a UITableView ?

    - by srikanth rongali
    I need to load a video stored in Applications folder in to a table view. When I touched the cell the video plays. I used the following code to get all the video files in to an array. NSFileManager *fileManager = [NSFileManager defaultManager]; NSArray* contents = [fileManager directoryContentsAtPath:@"/Users/srikanth/Desktop/Projects/UF/Table2/Videos"]; for(a = 1; a < [contents count]; a++) NSLog(@"Array contents: %@", [contents objectAtIndex:a]); cells = [[NSMutableArray alloc]initWithCapacity:[contents count]]; But how can I load the videos into UITableView. I used NSBundle for loading videos by giving path. It worked. But, now I need the videos to load from the array contents. When I touch the cell of the table the corresponding file from the array contents si to be loaded. How can I make it? Thank you.

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  • Best way to update badgeValue of UITabBarController from a UIView

    - by Rudiger
    Hi everyone, I have a tabBarController set up in the AppDelegate and have a few UIViewControllers with Nav Controllers. In one of the TabBar items, after I have pushed a few UIViews I want to update the badgeValue item of a different TabBar item. Whats the best way to do this? The only way I can really think is a NSNotification and a singleton storage for the value, but it seems a lot of work for something simple, that and I have no idea about NSNotifications. I had a wild guess at something like super.tabBarController.otherView.badgeValue = @"1" (as I set which tab is selected in a similar way) but I'm not surprised this doesn't work. Thanks

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