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  1. PO
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    <p>no offense, but your code is a big pile of crap. </p> <ol> <li>variables named <code>something</code> are not useful. Period. </li> <li>you have a variable named something in your local method. And you have a variable named something that is part of your class. The "local variables hides instance variable" warnings are there for a reason!<br> Probably that is where all your problems come from. I think you don't really understand the concept of local variables. If that is the case you should read more about basic Objective-C stuff. </li> <li>You check if something is nil and then you don't change something but you allocate an array. Those two have nothing to do with each other. Don't write such code. </li> </ol> <p>I fixed it for you:</p> <pre><code>- (void)viewDidLoad {     [super viewDidLoad]; NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; NSArray *anArr = [userDefaults objectForKey:@"somedata"]; NSLog(@"anArr::: %@",anArr); } -(IBAction)addsomething:(id)sender{ NSMutableArray *array = [[NSMutableArray alloc] init]; NSLog(@"textfieldvalue::: %@", textfield.text); [array addObject:textfield.text]; NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; [userDefaults setObject:array forKey:@"somedata"]; array = [userDefaults objectForKey:@"somedata"]; // synchronize is only needed while debugging (when you use the stop button in Xcode) // you don't need this in production code. remove it for release [userDefaults synchronize]; NSLog(@"array:: %@", array); } </code></pre> <hr> <p>However, most likely you want to save objects to the array you got from userDefaults. That won't work with local variables! </p> <p>You would use something like this. But don't copy that verbatim. Try to understand it, and read more about local variables.</p> <pre><code>NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; array = [[userDefaults objectForKey:@"somedata"] mutableCopy]; if (!array) { // create array if it doesn't exist in NSUserDefaults array = [[NSMutableArray alloc] init]; } NSLog(@"array in viewDidLoad: %@",array); NSLog(@"textfieldvalue::: %@", textField.text); [array addObject: textField.text]; NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; [userDefaults setObject:array forKey:@"somedata"]; // synchronize is only needed while debugging (when you use the stop button in Xcode) // you don't need this in production code. remove it for release [userDefaults synchronize]; </code></pre>
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    1. PONSMutableArray and NSUserdefaults issue iPhone
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    1. USMatthias Bauch
    1. USMatthias Bauch
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    1. COThank you very much, Have tried you code but I am getting this result 2012-03-15 15:51:36.832 check[3025:40b] textfieldvalue::: a 2012-03-15 15:51:36.845 check[3025:40b] array:: (a) 2012-03-15 15:51:44.712 check[3025:40b] textfieldvalue::: b 2012-03-15 15:51:44.738 check[3025:40b] array:: (b)
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      1. USOmer Waqas Khan
    2. COit is replacing the previous element with the new one, not adding a new one. Like if "a" has inserted then array is array:: (a) then after that when we enter b, then the array should be array:: (a,b) but it gives array:: (b)
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      1. USOmer Waqas Khan
    3. COread the second code block of my answer and try to understand what it does. It should do exactly this. Keep in mind: array is an instance variable, not a local variable.
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      1. USMatthias Bauch
 

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