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PONSUserDefaults: Saved Number Always 0, iPhone
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copied!<p>I have looked at other answers and the docs. Maybe I am missing something, or maybe I have another issue. I am trying to save a number on exiting the app, and then when the app is loaded I want to check if this value exists and take action accordingly. This is what I have tried:</p> <p>To save on exiting:</p> <pre><code>- (void)applicationWillTerminate: (UIApplication *) application { double save = [label.text doubleValue]; // This could be the issue //double save = 3.5; // This works, it saves the value and loads it fine, so that is not the problem here. [[NSUserDefaults standardUserDefaults] setDouble: save forKey: @"savedNumber"]; [[NSUserDefaults standardUserDefaults] synchronize]; } </code></pre> <p>To check:</p> <pre><code>- (IBAction)buttonclickSkip{ double save = [[NSUserDefaults standardUserDefaults] doubleForKey: @"savedNumber"]; if (save == 0) { [self performSelector:@selector(displayAlert) withObject:nil]; test.enabled = YES; test.alpha = 1.0; skip.enabled = NO; skip.alpha = 0.0; } else { label.text = [NSString stringWithFormat:@"%.1f %%", save]; } } </code></pre> <p>The problem is I always get my alert message displayed, the saved value is not put into the label so somehow == 0 is always true. Why would:</p> <pre><code>double save = [label.text doubleValue]; </code></pre> <p>always equal zero? Before I close the app the number in that label is roughly 0.5% (it varies). If it makes any difference I am testing this on the iPhone simulator.</p> <p>Many thanks,</p> <p>Stu</p>

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