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  • Defined outlets, connected them, they all returns (null)

    - by Tom
    Hi! I'm trying to play with a WebView. I made an outlet: IBOutlet UIWebView *browser; Defined it as a property: @property (nonatomic, retain) IBOutlet UIWebView *browser; Synthethized it: @synthesize browser; Finally, I connected it in Interface Builder, really it is. Then I try to do something with it i.e.: [browser loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://apple.com"]]]; Or also: Etape *etape = [[Etape alloc] init]; NSString *html = [etape generateHTMLforEtape:[current_etape objectAtIndex:0]]; [browser loadHTMLString:html baseURL:nil]; [etape release]; I get no errors, I tried to Build & Analyse, no notices or warnings or errors.. I've been searching for one whole day, please help me :/ Thanks a lot! EDIT: Here's screenshots of my connections for my WebView: EDIT: That is how I call the view: DetailViewController *dvController = [[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:[NSBundle mainBundle]]; dvController.workflow_id = parent_id; Etape *etape = [[Etape alloc] init]; dvController.etapes = [etape getEtapes:parent_id]; [etape release]; [self.navigationController pushViewController:dvController animated:YES]; [dvController release];

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  • Change TabBarController in detail view

    - by Antriel
    So I have a TabBarController with 2 views. One of the views is a TableView in navigationController. When user selects a row I push a detail view there. I want this detail view to have its own TabBarController different from the former one. So basically the question is if I can push a view on top different view with different TabBarController, but using navigationController not as a modal view.

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  • Reading html with accented characters from a URL on iPhone

    - by lbh
    Hello, I'm having trouble extracting the html from a website which contains accented characters. Specifically, there are French characters on the site. Currently I'm using: NSString* html= [NSString stringWithContentsOfURL: [NSURL URLWithString: url] usedEncoding: &enc error:&error]; to get html from a URL. It works perfectly fine for any sites which are all English, but with a mostly English site with French characters it returns nothing. I've tried a few different types of encoding, but none have worked for me. Any suggestions? Thanks.

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  • Pop up window dialogs

    - by Omega
    In Cocoa, my application's main window has a button. How can I make it so when you click it, a new window will be generated and set focus to such window so that the main window can not be clicked or interacted with at all? This new window will have a textfield and a submit button. You click it and the window is supposed to close and send the textfield's data back to the main window (and it will recover focus as well). I found this: How to open a new window on button click in Cocoa Mac Application? But the answer doesn't seem to be working for me. The function showWindow doesn't seem to be recognized...

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  • I know I can't say myView.frame.origin.x = val - But why ?

    - by Allisone
    I know that I can't use that myView.frame.origin.x = 25.0; that I have to use instead CGRect myFrame = myView.frame; myFrame.origin.x = 25.0; myView.frame = myFrame; And I'm doing it all the time (f.e. in animations), but I don't know why I must do it that way. I would like to fill that gap in my understanding. Can someone explain ?

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  • implicit declaration of function 'objc_lookUpClass'

    - by idober
    I am getting this warning for the line code: Class myClass = objc_lookUpClass([_className UTF8String]); I am adding #import <Foundation/NSObjCRuntime.h> #import <objc/objc.h> And it still don't resolve the problem Another warning i get on this line is: "Initialization makes pointer from integer without a cast"

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  • ViewController behaving oddly when pushed on the window

    - by ayazalavi
    I am using multiple controller during launch of an application in app delegate. One controller is for registration and the second controller is tabbar. tabbar was loading fine but when I pushed registration controller on window, contents went up by 20 units and I have good white blank screen at bottom. Therefore I recreated frame of my registration view controller in its viewdidload method and slided it 20 units down. The code is self.view.frame = CGRectMake(0, 20, self.view.frame.size.width, self.view.frame.size.height); and code in my app delegate for launch application was - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { if (![self accountExists]) { //code if account does not exists on iphone app database self.registerAccount = [[registerViewController alloc] initWithNibName:@"registerViewController" bundle:nil]; [window addSubview:registerAccount.view]; } else if([self autoLoginForAnyAccount]){ //code for autologin to app } else { self.tabBarController.selectedIndex = 1; self.tabBarController.delegate = self; [window addSubview:tabBarController.view]; } [window makeKeyAndVisible]; return YES; } if anyone knows why there is a white space at bottom when registration controller is pushed then please share it with me.

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  • TabBars and iOS 7

    - by MichaelScaria
    I have a UITabbarController that I'm pushing another controller on top of using a UINavigationController. On iOS 6 and below, the tabBar of the parent controller slides away and the toolbar of the new view controller is presented. But on iOS 7 the tabBar doesn't animate away even if I run the code [self.navigationController setToolbarHidden:YES animated:NO]; EDIT - Okay I narrowed my problem to iOS 7 not respecting the hidesBottomBarWhenPushed property, I followed the answers in hidesBottomBarWhenPushed ignored in iOS 7 but it didn't work. The view that is pushed has a toolbar with buttons and the buttons are responding to touches, it's just that the tabBar is on top of the toolbar.

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  • Accordion table cell - How to dynamically expand/contract uitableviewcell?

    - by s.newave
    Hi, I am trying create an accordion type of uitableviewcell that, when the user selects the cell, it expands to display a detailed info view inline similar to how the digg app works. I initially tried replacing the current tablecell with a customcell in cellForRowAtIndex however the animation looks a bit choppy as you can see the cell being replaced and overall the effect doesnt work to well. If you look at the digg app and others who have done this it seems that they arent replacing the current cell but instead perhaps adding a subview to the cell? The original cell however doesnt seem to animate at all and only the new view accordions into the table. Does anyone have any ideas how to accomplish a similar effect?

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  • iPhone: Which are the most useful techniques for faster Bluetooth?

    - by Mike Howard
    Hi. I'm adding peer-to-peer bluetooth using GameKit to an iPhone shoot-em-up, so speed is vital. I'm sending about 40 messages a second each way, most of them with the faster GKSendDataUnreliable, all serializing with NSCoding. In testing between a 3G and 3GS, this is slowing the 3G down a lot more than I'd like. I'm wondering where I should concentrate my efforts to speed it up. How much slower is GKSendDataReliable? For the few packets that have to get there, would it be faster to send a GKSendDataUnreliable and have the peer send an acknowledgement so I can send again if I don't get the Ack within, say, 100ms? How much faster would it be to create the NSData instance using a regular C array rather than archiving with the NSCoding protocol? Is this serialization process (for about a dozen floats) just as slow as you'd expect from an object creation/deallocation overhead, or is something particularly slow happening? I heard that (for example) sending four seperate sets of data is much, much slower, than sending one piece of data four times the size. Would I make a significant saving by sending separate packets of data that wouldn't always go together in the same packet when they happen at the same time? Are there any other bluetooth performance secrets I've missed? Thanks for your help.

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  • Request for member Name in something not a structure or Union

    - by Ashutosh
    Hey Folks, I am trying to Call the webservices in my app and while checking it in console it's showing the number of objects. (as i am using the Mutable array) and then while trying to display the name of the objects (here it's location) it's giving me an error in this line for (SDZArrayOfLocationWithLatestGrades* location in a) { NSLog(@" - %@", location.Name); // error here and a is the mutable array } PLease help me with this and Happy New Year to All!!!!!! Thanks,

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  • tableView resize problem when pushing another view while keyboard is showing

    - by Rollin_s
    I have a tableview controller under a navigation controller. Some of my table cells contain text fields, so when I tap on them, a keyboard will show up and automatically resize (shrink) the bounds of my tableview. The bounds is then restored when the keyboard is dismissed programmatically by calling resignFirstResponder on my text field. Some of my cells would push a new view controller into the view stack when tapped on, so I first resign my current textfield before pushing the view controller: - (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath { if (currentEditingTextField != nil) { [currentEditingTextField resignFirstResponder]; currentEditingTextField = nil; } return indexPath; } The problem is when I navigate back to my table view, the bounds of the tableview is sized as if the keyboard is still there. I know this because the scroll indicator only reaches right above where the keyboard was and there is empty view space below the table view. Anybody experienced this and know of a solution? Thanks

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  • Is the scope of what Xcode's "Build and Analyze" will catch as a leak supposed to be this limited?

    - by Ranking Stackingblocks
    It doesn't care about this: NSString* leaker() { return [[NSString alloc] init]; } I thought it would have been smart enough to check if any code paths could call that function without releasing its return value (I wouldn't normally code this way, I'm just testing the analyzer). It reports this as a leak: NSString* leaker() { NSString* s = [[NSString alloc] init]; [s retain]; return s; } but NOT this: NSString* leaker() { NSString* s = [[NSString alloc] init]; // [s retain]; return s; } which seems particularly weak to me. Does it only analyze within the local scope? If the tool can't pick up on things like this, how can I expect it to pick up on actual mistakes that I might make?

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  • Please explain class methods

    - by user1209902
    I'm finding it difficult to understand when it is necessary to create class methods. From what I've read, they are important for creating new objects, but I do not see how. The following class create a simple shape black rectangle. Can anyone show me how to incorporate a class method to do something that I could not do with an instance method? Shape.h #import <UIKit/UIKit.h> @interface Shape : UIView; - (id) initWithX: (int)xVal andY: (int)yVal; @end Shape.m #import "Shape.h" @implementation Shape - (id) initWithX:(int )xVal andY:(int)yVal { self = [super init]; UIView *shape = [[UIView alloc] initWithFrame:CGRectMake(xVal, yVal, 10, 10)]; shape.backgroundColor = [UIColor blackColor]; [self addSubview:shape]; return self; } @end

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  • FJSTransitionController setup and use in View Controller not main app delegate

    - by elliotrock
    I am trying to set up Corey Floyd's FJSTransitionController. My app uses a main view controller to manage the main view navigation. I also went through the source to fix it for ARC. Followed instructions and in my main delegate .h I have in the usual spots: FJTransitionController* mainTransitionController; @property (nonatomic,retain) FJTransitionController* mainTransitionController; delegate .m has the following @synthesize mainTransitionController And in the - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions mainTransitionController=[[FJTransitionController alloc] init]; // do I need to instantise? [self.window addSubview:mainTransitionController.view]; [mainTransitionController setViewControllerClass:[[mainViewController sendMissionsPanelViewController] class] forKey:@"missionView"]; The last line is complaining that there is no @interface for FJTransitionController? Any help please.

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  • Change UIView alpha value

    - by Ask
    I'm trying to create an UIView and change its alpha property to simulate backlight change. Here is my code if (TransparentView == nil) { TransparentView = [[UIView alloc] initWithFrame:self.view.bounds]; TransparentView.backgroundColor = [UIColor whiteColor]; self.view = TransparentView; } start=start+appDelegate.OnOffTime; TransparentView.alpha = 0.2; float step = 1.0 / ( appDelegate.OnOffTime * 100); for (float f = 0; f < 1; f=f+step) { TransparentView.alpha = (CGFloat)(1 - f); [NSThread sleepForTimeInterval:0.01]; } Both TransparentView.alpha = 0.2 and TransparentView.alpha = (CGFloat)(1 - f) do change TransparentView.alpha, but only TransparentView.alpha = 0.2 changes real device "brightness'. What am I doing wrong?

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  • Textfield being dequeued before textFieldDidEndEditing is called?

    - by Tony
    I am using a uitableview with a bunch of dynamically created custom cells each with a label and textfield similar to the settings app on the phone. Problem occurs when i have a lot of textfields say 20, the user selects the first textfield, changes its value then scrolls to the end of the table and selects the last textfield to edit. I get a EXEC_BAD_ACCESS in the textFieldDidEndEditing method because i think the textfield value is nil?? I think this might be happending because the 1st textfield that was being edited is being dequeued when the table is scrolled. Everything works fine if you select textfields that are next to each other. Any ideas how to fix this?

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