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  • Creating an Expando object in Ruby

    - by tyndall
    Is there a better way to write this Expando class? The way it is written does not work. I'm using Ruby 1.8.7 starting code quoted from https://gist.github.com/300462/3fdf51800768f2c7089a53726384350c890bc7c3 class Expando def method_missing(method_id, *arguments) if match = method_id.id2name.match(/(\w*)(\s*)(=)(\s*)(\.*)/) puts match[1].to_sym # think this was supposed to be commented self.class.class_eval{ attr_accessor match[1].to_sym } instance_variable_set("#{match[1]}", match[5]) else super.method_missing(method_id, *arguments) end end end person = Expando.new person.name = "Michael" person.surname = "Erasmus" person.age = 29

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  • Cant change text in custom cell

    - by darkman
    I created a custom cell to display a text a two images, when the user select the cell, the image is suposed to change, i can acess the properties of the cell, but cant change then : - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { [tableView deselectRowAtIndexPath:indexPath animated:YES]; CustomCell *cell = (CustomCell *)[self.tableView cellForRowAtIndexPath:indexPath]; cell.check.image = setImage:[UIImage imageNamed:@"1355327732_checkbox-checked"]; [cell.check setImage:[UIImage imageNamed:@"1355327732_checkbox-checked"]]; } cell.check is a UIImageView Am i missing something?

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  • How to implement a Mutex in Python when using Gtk with PyGTK

    - by Julian
    Hi, I have an application that starts several threads using gobject.timeout_add(delay, function) Now in my function I want to test and set on some variable, e.g. def function(self): if flag == True: flag = False doSomething() Now to make this threadsafe, I would have to lock the function using some mutex lock. Is this possible with Gtk? Or can I use the Python Lock objects from threading?

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  • How to open webpage in HIDDEN default browser? DELPHI

    - by obma
    I have been trying to open a hidden default browser from delphi but coulnd't. I tried ShellExecute(self.WindowHandle,'open','www.google.com',nil,nil, SW_HIDE); and I get my chrome browser open but not hidden, and it opens a tab not a new window, also tried with TStartupInfo with the same results. Is there another way to achieve this?

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  • Show NSSegmentedControl menu when segment clicked, despite having set action

    - by enchilada
    My question is based on another question. Instead of repeating a bunch of stuff, I hope it's okay that I refer you to that other question instead: http://stackoverflow.com/questions/1203698/show-nssegmentedcontrol-menu-when-segment-clicked-despite-having-set-action/ My question is: How would the code within [self showGearMenu] look like, i.e. how would one actually use the popUpContextMenu:withEvent:forView method to accomplish what the poster of the other question wants? I ask because it seems that the question was resolved for the poster, but he never shared with us how he actually popped up the menu :)

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  • Why does Apple create it's views this way

    - by John Smith
    In the hope of fixing a bug of mine from another post i would like to know why apple writes this (for it's Elements example) UIView *localContainerView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]]; self.containerView = localContainerView; [localContainerView release]; instead of the simpler method: containerView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]]; ?

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  • Get highlighted state for NSButtonCell

    - by dvg
    I have a NSTableView that contains a NSButtonCell in one of the columns. To draw a custom background in neighbor cells (based on NSTextFieldCell) I use isHighlighted method: - (void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView { if ([self isHighlighted]) { //here I draw the cell background But for NSButtonCell isHighlighted shows only the button pressed state. How to determine when the NSButtonCell is selected, i.e. when it's highlighted in the row?

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  • Ruby Module Inclusion in Methods

    - by Federico Builes
    In class Foo I'd like to include method Bar under certain conditions: module Bar def some_method "orly" end end class Foo def initialize(some_condition) if !some_condition "bar" else class << self; include Bar; end end end end Is there any cleaner (and clearer) way to achieve the include in the method without having to do it inside the singleton class?

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  • ios how can user cancel facebook sign in?

    - by Jackson
    When a user gets to this screen, there is no way to cancel out of it. What can I do? To get this view in the first place I am running: NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys: vid, @"link", vid, @"source", vid, @"picture", @"My Place", @"name", @"YouTube Presentation", @"caption", title, @"description", @"Enjoy this Video", @"message", nil]; [app.facebook dialog:@"stream.publish" andParams:params andDelegate:self];

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  • question related to UITextView

    - by user177893
    I have n number of UITextview and that are added to UIScrollview.and uiscrollview is added to self.view.Now,I want that 1If user enter text in first UITextview ,then as lenth increase os UITextview ,another UITextviews which are below it also reinitialize and maintain properly according to the size of first UITextView.inshort another UITextviews go more below then it was. 2It should work in any of the case ,wether user presses return key after entering text into UITextView or may be not till end

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  • Prevent delegate method from being called too often

    - by Lord Zsolt
    How would you add a delay between certain method being called? This is my code that I want to only trigger 30 times per second: - (void) scrollViewDidScroll: (UIScrollView*)scrollView { [self performSelector:@selector(needsDisplay) withObject:nil afterDelay:0.033]; } - (void) needsDisplay { [captureView setNeedsDisplay]; } If I leave it like this, it only gets called after the user stopped scrolling. What I want to do is call the method when the user is scrolling, but with a delay of 33 milliseconds between each call.

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  • iPhone app runs on iPad simulator, but the background is inverted!!

    - by Mat
    Hi all, i've installed new sdk 3.2 pre-release wich have iPad simulator, i have tried to launch an iPhone app created by me in iPad simulator; the main view of this app has an image as background; when launch it on iPad simulator this background(self.background = [[UImage..... ) it comes inverted, from top to bottom. Any idea?? thanks in advance....:)

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  • Set background of UITableview in interface builder?

    - by Martin
    In iPhone I need to set the background view of a UITableview. From 3.2 SDK I can in code use something like: [self.tableView setBackgroundView:[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"mycustombackground.png"]]]; But how can I do the same in interface builder? It would be great if I could just set the background view directly in interface builder. But can't seem to find this property, where is it? Thanks!

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  • Strange behavior: save video recorded within app?

    - by Josue Espinosa
    I allow the user to record a video within my app, then later play it again. When a user records a video, I save the URL of the video, then play the video later from the saved URL. I save the video both in the Photos app and in my app. If I delete the video within the photos app, it still plays. After about 7 days, the video gets deleted. I think I am saving in my tmp directory, but i'm not sure. Here is what I am doing: -(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { NSString *mediaType = [info objectForKey: UIImagePickerControllerMediaType]; [self dismissViewControllerAnimated:YES completion:nil]; // Handle a movie capture if (CFStringCompare ((__bridge_retained CFStringRef) mediaType, kUTTypeMovie, 0) == kCFCompareEqualTo) { NSString *moviePath = [NSString stringWithFormat:@"%@",[[info objectForKey:UIImagePickerControllerMediaURL] path]]; NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL]; NSData *videoData = [NSData dataWithContentsOfURL:videoURL]; _justRecordedVideoURL = [NSString stringWithFormat:@"%@",videoURL]; AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate]; _managedObjectContext = [appDelegate managedObjectContext]; Video *video = [NSEntityDescription insertNewObjectForEntityForName:@"Video" inManagedObjectContext:_managedObjectContext]; [video setVideoData:videoData]; [video setVideoURL:[NSString stringWithFormat:@"%@",videoURL]]; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; dateFormatter.dateStyle = NSDateFormatterLongStyle; [dateFormatter setDateStyle:NSDateFormatterLongStyle]; NSDate *date = [dateFormatter dateFromString:[dateFormatter stringFromDate:[NSDate date]]]; NSString *dateAdded = [dateFormatter stringFromDate:date]; [video setDate_recorded:dateAdded]; if(_currentAthlete != nil){ [video setWhosVideo:_currentAthlete]; } NSError *error = nil; if(![_managedObjectContext save:&error]){ //handle dat error } NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *tempPath = [documentsDirectory stringByAppendingFormat:@"/vid1.mp4"]; BOOL success = [videoData writeToFile:tempPath atomically:NO]; if(success == FALSE){ NSLog(@"Video was not successfully saved."); } if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(moviePath)) { UISaveVideoAtPathToSavedPhotosAlbum(moviePath, self, @selector(video:didFinishSavingWithError:contextInfo:), nil); } } } Am I saving it incorrectly? When I go to play the video, it works fine, after a couple days the video will play without audio, then eventually it will be gone. Any ideas why?

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  • I cannot get the value of a table view cell in cocoa touch

    - by Michael Amici
    I am trying to get the value of a cell in a table view but it won't let me. If someone could help that would be great. int numberOfChecks = -1; numberOfChecks = numberOfChecks +1; if ([objectsForTable count]-1 >= numberOfChecks) { UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:numberOfChecks]; NSString *cellTitle = cell.textLabel.text; }

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  • Appengine Model SelfReferenceProperty and parent child relationship

    - by GeekTantra
    I have a scenario in which I need a self reference property as follow: class Post(db.Model): creator = db.UserProperty() post_title = db.StringProperty(required=True) post_status = db.StringProperty(required=True, choices=['draft', 'published']) post_parent = db.SelfReferenceProperty() Now, I want ensure that an entity shouldn't be its own parent and a child of an entity cannot be its parent. How can I ensure this kind of a relationship in the PostForm model form and the Post model.

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  • 'EXC_BAD_ACCESS' When trying to access a variable?

    - by Nick Brooks
    I get an 'EXC_BAD_ACCESS' error when trying to access variable in a function other than the one it was set in: NSLog(@"Commening search (%@)",sessionID); // This causes it The variable is set in the 'awakeFromNib' function: //Retrieve Session-ID sessionID = [self getSessionID]; The variable itself is defined in the header: NSString *sessionID;

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  • A question is related to state maintainance

    - by user217572
    my question is like that My 5 th view is Acontroller and it has 1 UIButton.when i click on this UIButton my Bcontroller's view opens.this operation wrks perfectly. but i'm actually doing state maintainanace.when i reach to 5 th view of Acontroller.after that i press home button and then when i again click on application as per my state maintainance code 5 th view of Acontroller opens .but when i click on it's UIButton Bcontroller's view not open.why A code of UIButton is as below [self.navigationController pushViewController:bcontroller animated:YES]; bcontroller is nothing but object of Bcontroller

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