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POUsing a singleton to create an array accessible by multiple views
 

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    <p>It's a classic problem.</p> <p>I would like to access an array of objects from anywhere within my app. I would also like to do this using a singleton. My questions are:</p> <ol> <li>Where do I instantiate my singleton object?</li> <li>Where do I instantiate my NSMutable array of objects?</li> <li>How do I refer to this array from anywhere within my project?</li> </ol> <p>All code and examples are greatly appreciated!</p> <p><strong>EDIT 1</strong></p> <p>This is what I have so far. I can't figure out though how to access this array of bananas correctly and consistently:</p> <pre><code>#import &lt;Foundation/Foundation.h&gt; @interface Singleton : NSObject { NSMutableArray *bananas; } @property (nonatomic, retain) NSMutableArray *bananas; @end #import "Singleton.h" static Singleton *mySingleton; @implementation Singleton @synthesize bananas; #pragma mark SingletonDescption stuff + (Singleton *)mySingleton { if(!mySingleton){ mySingleton = [[Singleton alloc]init]; } return mySingleton; } + (id)allocWithZone:(NSZone *)zone { if (!mySingleton) { mySingleton = [super allocWithZone:zone]; return mySingleton; } else { return nil; } } - (id)copyWithZone:(NSZone*) zone { return self; } - (void)release { // NO OP } @end </code></pre> <p><strong>EDIT 2</strong></p> <p>This is how I'm trying to use my singleton object to have an array of objects placed in a table cell. Nothing is happening and the table cell comes up blank :(</p> <pre><code>- (id)init { [super initWithStyle:UITableViewStylePlain]; // bananas = [[NSMutableArray alloc] init]; Singleton *mySingleton = [[Singleton alloc]init]; mySingleton.bananas = [[NSMutableArray alloc]init]; UIImage *imageA = [UIImage imageNamed:@"A.png"]; UIImage *imageB = [UIImage imageNamed:@"B.png"]; UIImage *imageC = [UIImage imageNamed:@"C.png"]; Banana *yellowBanana = [[Banana alloc] initWithName:@"Yellow" description:@"Beautiful" weight:22.0 icon:imageA]; Banana *greenBanana = [[Banana alloc] initWithName:@"Green" description:@"Gorgeous" weight:12.0 icon:imageB]; Banana *rottenBanana = [[Banana alloc] initWithName:@"Rotten" description:@"Ugly" weight:8.0 icon:imageC]; [mySingleton.bananas addObject:yellowBanana]; [mySingleton.bananas addObject:greenBanana]; [mySingleton.bananas addObject:rottenBanana]; } </code></pre>
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    1. USAtulkumar V. Jain
    1. USEric Brotto
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    1. COhttp://stackoverflow.com/questions/145154/what-does-your-objective-c-singleton-look-like
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      1. USNick
    2. CO@Nick, For the inducted this may seem like the same question, but it is not. I've looked at that question and still was confused. But thanks :)
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    3. COHow is this not the same question?
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