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POUIDatePicker will not animate
 

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    <p>I have a view containing a segmented controller and a UIDatePicker that only shows 24-h time. I want to be able to set different times depending on what the segmented control says. So "Mon" would correspond to one time, "Tue" to another and so on. I have this working. However, I also would like to animate the picker when the user changes button on the segmented controller. As of now I have in my action method linked to the segmented controller this:</p> <pre><code>[timePicker setDate:date animate:YES]; </code></pre> <p>Where date is a NSDate formatted like so: HH:mm</p> <p>As I said, it will change to the date but it will not animate the operation. Anyone knows why it doesn't animate?</p> <p>BTW, although I have set the formatter to be "HH:mm" if I use NSLog to print it I still get the whole 1970-01-01 +02:00:00 string printed. I assume that the only HH:mm is sent to the datepicker anyway and that it is just NSLog that prints the whole thing?</p> <p>EDIT: Here is the code for the actual view controller, and this is running SDK4</p> <pre><code>#import "FlipsideViewController.h" @implementation FlipsideViewController @synthesize delegate, times, weatherImage, condition, timePicker; - (void)viewDidLoad { [super viewDidLoad]; self.view.backgroundColor = [UIColor viewFlipsideBackgroundColor]; UIImage *image = [UIImage imageNamed:@"sunny.png"]; weatherImage.image = image; WeatherClockAppDelegate *appDelegate = (WeatherClockAppDelegate *)[[UIApplication sharedApplication] delegate]; times = appDelegate.times; [timePicker addTarget:self action:@selector(timePickerAction:) forControlEvents:UIControlEventValueChanged]; NSDateFormatter *df = [[NSDateFormatter alloc] init]; [df setDateFormat:@"HH:mm"]; NSDate *sunnyDate = [df dateFromString: [times objectAtIndex:0]]; [df release]; [timePicker setDate:sunnyDate animated:NO]; } - (IBAction)done:(id)sender { if (!busy) { [self.parentViewController dismissModalViewControllerAnimated:YES]; for (NSString *s in times) { NSLog(@"Set times: %@", s); } } } - (IBAction)segmentedAction { NSDateFormatter *df = [[NSDateFormatter alloc] init]; [df setDateFormat:@"HH:mm"]; switch (self.condition.selectedSegmentIndex) { case 0: self.weatherImage.image = [UIImage imageNamed:@"sunny.png"]; NSDate *sunnyDate = [df dateFromString: [times objectAtIndex:0]]; [timePicker setDate:sunnyDate animated:YES]; break; case 1: self.weatherImage.image = [UIImage imageNamed:@"cloudy.png"]; NSDate *cloudyDate = [df dateFromString: [times objectAtIndex:1]]; NSLog(@"Cloudydate: %@", cloudyDate); [timePicker setDate:cloudyDate animated:YES]; break; case 2: self.weatherImage.image = [UIImage imageNamed:@"rain.png"]; NSDate *rainyDate = [df dateFromString: [times objectAtIndex:2]]; [timePicker setDate:rainyDate animated:YES]; break; case 3: self.weatherImage.image = [UIImage imageNamed:@"final.png"]; NSDate *finalDate = [df dateFromString: [times objectAtIndex:3]]; [timePicker setDate:finalDate animated:YES]; break; } [df release]; } - (IBAction)timePickerAction:(id)sender { NSDateFormatter *df = [[NSDateFormatter alloc] init]; [df setDateFormat:@"HH:mm"]; NSString *date = [NSString stringWithFormat:@"%@", [df stringFromDate:timePicker.date]]; NSLog(@"%@", date); [df release]; switch (self.condition.selectedSegmentIndex) { case 0: [times replaceObjectAtIndex:0 withObject:date]; break; case 1: [times replaceObjectAtIndex:1 withObject:date]; break; case 2: [times replaceObjectAtIndex:2 withObject:date]; break; case 3: [times replaceObjectAtIndex:3 withObject:date]; break; } } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } /* // Override to allow orientations other than the default portrait orientation. - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations return (interfaceOrientation == UIInterfaceOrientationPortrait); } */ - (void)dealloc { [times release]; [weatherImage release]; [condition release]; [timePicker release]; [super dealloc]; } @end </code></pre>
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    1. USWendiKidd
    1. USsebrock
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    1. COCan you post some more code (esp. how you create the NSDate instances)? Because the single line of code you posted seems fine (except the correct method is `setDate:animated:`, not `setDate:animate:`, I'm assuming that's a typo).
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      1. USCan Berk Güder
    2. COYour "Where date is a NSDate formatted like so: HH:mm" makes no sense. NSDate always represents a specific point in time, including date and time down to the microsendond. An `NSDate` object alone has no inherent formatting at all.
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      1. USOle Begemann
 

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