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POStoring a NSArray of my Custom Objects in NSUserDefaults
 

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  1. POStoring a NSArray of my Custom Objects in NSUserDefaults
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    <p>The requirement is that I want to store <code>NSArray</code> of my custom objects in <code>NSUserDefaults</code>. Following is the code from my example</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; sampleArray=[[NSMutableArray alloc]init]; MyClass *obj1=[[MyClass alloc]init]; obj1.name=@"Reetu"; obj1.countOpen=1; NSArray *subArray = [[NSArray alloc]initWithObjects:@"likes131",@"likes132", @"likes133", nil]; obj1.hobbies = [[NSArray alloc]initWithObjects:@"like11", @"like12", subArray, nil]; [sampleArray addObject:obj1]; MyClass *obj2=[[MyClass alloc]init]; obj2.name=@"Pinku"; obj2.countOpen=2; NSArray *subArray2 = [[NSArray alloc]initWithObjects:obj1 ,@"likes231",@"likes232", @"likes233", obj1 ,nil]; obj2.hobbies = [[NSArray alloc]initWithObjects:@"like21", @"like22", subArray2 ,nil]; [sampleArray addObject:obj2]; MyClass *obj3=[[MyClass alloc]init]; obj3.name=@"Mike"; obj3.countOpen=6; obj3.hobbies = [[NSArray alloc]initWithObjects:obj1 , obj2 ,@"likes000", nil]; [sampleArray addObject:obj3]; //First lets encode it NSUserDefaults *userDefault=[NSUserDefaults standardUserDefaults]; NSData *myEncodedObject = [NSKeyedArchiver archivedDataWithRootObject:sampleArray]; [userDefault setObject:myEncodedObject forKey:[NSString stringWithFormat:@"sample"]]; [userDefault synchronize]; //Lets decode it now NSData *myDecodedObject = [userDefault objectForKey: [NSString stringWithFormat:@"sample"]]; NSArray *decodedArray =[NSKeyedUnarchiver unarchiveObjectWithData: myDecodedObject]; //Print the array received from User's Default for (MyClass *item in decodedArray) { NSLog(@"name=%@",item.name); NSLog(@"LIKES TO %@",item.hobbies); } } </code></pre> <p>This is my custom class confirming to the NSCoding protocol</p> <pre><code>- (void)encodeWithCoder:(NSCoder *)encoder { //Encode properties, other class variables, etc [encoder encodeObject:self.name forKey:@"name"]; [encoder encodeObject:[NSNumber numberWithInt:self.countOpen] forKey:@"destinationCode"]; [encoder encodeObject:self.hobbies forKey:@"likesTo"]; } - (id)initWithCoder:(NSCoder *)decoder { self = [super init]; if( self != nil ) { self.name = [decoder decodeObjectForKey:@"name"]; self.countOpen = [[decoder decodeObjectForKey:@"countOpen"] intValue]; self.hobbies = [decoder decodeObjectForKey:@"likesTo"]; } return self; } </code></pre> <p>here is the output:-</p> <pre><code>2013-10-22 17:01:47.118 Sample[1056:c07] name=Reetu 2013-10-22 17:01:47.120 Sample[1056:c07] LIKES TO ( like11, like12, ( likes131, likes132, likes133 ) ) 2013-10-22 17:01:47.121 Sample[1056:c07] name=Pinku 2013-10-22 17:01:47.123 Sample[1056:c07] LIKES TO ( like21, like22, ( "&lt;MyClass: 0x6e32910&gt;", likes231, likes232, likes233, "&lt;MyClass: 0x6e32910&gt;" ) ) 2013-10-22 17:01:47.125 Sample[1056:c07] name=Mike 2013-10-22 17:01:47.127 Sample[1056:c07] LIKES TO ( "&lt;MyClass: 0x6e32910&gt;", "&lt;MyClass: 0x6e1f610&gt;", likes000 ) </code></pre> <p>The problem is <code>&lt;MyClass: 0X632910&gt;</code>. I was expecting it to be contents of <code>obj1</code> itself.</p>
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    1. COWhat is the actual problem?
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    2. COCHECKOUT THE OUTPUT. THE PROBLEM IS THE "<MYCLASS: 0X632910>". I was expecting it to be contents of obj1 ...
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    3. COPlease don't use capitals, it corresponds to shouting. Why do you assume we know what you were expecting?
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