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POHow do I make GCDAsyncSocket that is declared in AppDelegate available to view controllers
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  1. POHow do I make GCDAsyncSocket that is declared in AppDelegate available to view controllers
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    copied!<p>Following a post of similar question (which doesn't work), I declared a instance of GCDAsyncSocket on AppDelegate.h</p> <pre><code>#import &lt;UIKit/UIKit.h&gt; @class ViewController; @class GCDAsyncSocket; @interface AppDelegate : UIResponder &lt;UIApplicationDelegate&gt; { GCDAsyncSocket *asyncSocket; } @property (strong, nonatomic) UIWindow *window; @property (nonatomic, retain) GCDAsyncSocket *asyncSocket; @property (strong, nonatomic) ViewController *viewController; @end </code></pre> <p>and do the socket initialization in AppDelegate.m</p> <pre><code>#import "AppDelegate.h" #import "GCDAsyncSocket.h" #import "ViewController.h" @implementation AppDelegate @synthesize asyncSocket; - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // Override point for customization after application launch. self.viewController = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil]; self.window.rootViewController = self.viewController; [self.window makeKeyAndVisible]; dispatch_queue_t mainQueue = dispatch_get_main_queue(); self.asyncSocket = [[GCDAsyncSocket alloc] initWithDelegate:self delegateQueue:mainQueue]; NSString *host = @"10.1.100.50"; uint16_t port = 3040; NSError *error = nil; if (![self.asyncSocket connectToHost:host onPort:port error:&amp;error]) { NSLog(@"Error connecting: %@", error); } char bytes[] = "run"; NSData* requestData = [[NSData alloc] initWithBytes:bytes length:sizeof(bytes)]; [self.asyncSocket writeData:requestData withTimeout:-1 tag:0]; return YES; } </code></pre> <p>The I tried to access the socket from multiple view controllers by invoking:</p> <pre><code>GCDAsyncSocket *asyncSocket = [[[UIApplication sharedApplication] delegate] asyncSocket]; </code></pre> <p>the code completion stops at [[UIApplication sharedApplication] delegate] without being able to suggest asyncSocket. What should I do to make asyncSocket accessible in multiple view controllers when the instance of asyncSocket is being declared in AppDelegate? Thanks!</p> <p>Here's my Xcode project file : <a href="http://bit.ly/PLe1Le" rel="nofollow">http://bit.ly/PLe1Le</a></p>
 

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