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PONSString being set but appears empty when calling from another class - iOS
 

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  1. PONSString being set but appears empty when calling from another class - iOS
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    <p>I have a small piece of code that sets the NSString (<em>strUsername</em>) of the class <strong>Username</strong> to the value which is typed into a UITextField and then a button is pressed. This works fine: <strong>UsernameViewController.m</strong></p> <pre><code> #import &lt;UIKit/UIKit.h&gt; #import "Username.h" @interface UsernameViewController : UIViewController { Username *username; __weak IBOutlet UITextField *test; } @property (nonatomic, retain)IBOutlet UITextField *txtUsername; @property (nonatomic, retain) IBOutlet UITextField *test; -(IBAction)setUsername; @end #import "UsernameViewController.h" #import "Username.h" @implementation UsernameViewController @synthesize test=_test; - (void)viewDidLoad { [super viewDidLoad]; username = [[Username alloc] init]; } -(IBAction)setUsername { NSString *inputUsername = self.test.text; NSLog(@"inputUsername is: %@", inputUsername); username.strUsername = inputUsername; NSLog(@"the username.strUsername is now: %@", username.strUsername); } </code></pre> <p>My NSLog output shows that the UItextfield input and NSString setter are working:</p> <pre><code>LocNews1[6699:707] inputUsername is: Harry brown LocNews1[6699:707] the username.strUsername is now: Harry brown </code></pre> <p>Now when it hit the back button on this view it return me back to a UITableViewController. I then perform a pull down to refresh action and its called the following method:</p> <p><strong>TestViewController.m (UITableViewController type)</strong></p> <pre><code>#import "TestViewController.h" #import "ViewController.h" #import "DetailViewController.h" #import "AppDelegate.h" #import "NewsArticle.h" #import "ResultsCustomCell.h" #import "XMLParser.h" @implementation TestViewController //some code - (void)addItem { username = [[Username alloc] init]; // Use XMLparser to check for updated new feeds. if(username.strUsername != NULL) { NSLog(@"ViewController username.strUsername is:%@",username.strUsername); activeUsername = username.strUsername; } else { NSLog(@"%@",username.strUsername); activeUsername = @""; } NSString *myLat = [[NSString alloc] initWithFormat:@"%f", locationManager.location.coordinate.latitude]; NSString *mylong = [[NSString alloc] initWithFormat:@"%f", locationManager.location.coordinate.longitude]; XMLParser *parseQuestionnaire = [[XMLParser alloc] init]; NSLog(@"username %@",activeUsername); newsArticle = [parseQuestionnaire parseXML:myLat:mylong:activeUsername]; [self.tableView reloadData]; [self stopLoading]; } </code></pre> <p>However this shows the NSLog output as:</p> <pre><code>LocNews1[6699:707] ViewController username.strUsername is: </code></pre> <p>As you can see the string has been set in UsernameViewController.m but when I try and call the string back in TestViewController.m is appears to be blank (there is no null in the NSLog, just blank);</p> <p>What could be causing this?</p> <p><strong>EDIT: Username.h/m</strong></p> <pre><code>#import &lt;Foundation/Foundation.h&gt; @interface Username : NSObject { NSString *strUsername; } @property (nonatomic, retain) NSString *strUsername; @end #import "Username.h" @implementation Username @synthesize strUsername; -(id)init { strUsername = [[NSString alloc] init]; return self; } @end </code></pre> <p>Note: Username is declared in both TestViewController.h and UsernameViewController.h like: Username *username;</p>
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    2. COCode has been update to show the Username Class and its declaration
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