How to hide/show UIView with animation in iPhone

Question

I want to show UIView after button pressed with animation,I can show the view but I am unable to hide it again pressed that button.Here is my code to show/hide the view. To Show the UIView :

    sliderView.frame =  CGRectMake(130, 20, 0, 0);
    [UIView animateWithDuration:0.25 animations:^{
    sliderView.frame =  CGRectMake(130, 30, 100, 200);
    }]; 

To Hide the UIView :

     [UIView animateWithDuration:0.25 animations:^{
     sliderView.frame =  CGRectMake(130, 30, 0, 0);
    }]; 

Using above code view is showing with animation but not hiding. Does anybody know how to hide it,Please help,Thanks

Answer 1

Your code works, i have used it. Look code below
.h file:

#import <UIKit/UIKit.h>

@interface StackoverflowTestViewController : UIViewController
@property (strong, nonatomic) IBOutlet UIView *cautionView;


- (IBAction)btnToggleClick:(id)sender;
@property (strong, nonatomic) IBOutlet UIButton *btnToggle;
@end

.m file:

#import "StackoverflowTestViewController.h"

@interface StackoverflowTestViewController ()

@end

@implementation StackoverflowTestViewController

bool isShown = false;

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (IBAction)btnToggleClick:(id)sender {
    if (!isShown) {
        _cautionView.frame =  CGRectMake(130, 20, 0, 0);
        [UIView animateWithDuration:0.25 animations:^{
            _cautionView.frame =  CGRectMake(130, 30, 100, 200);
        }];
        isShown = true;
    } else {
        [UIView animateWithDuration:0.25 animations:^{
            _cautionView.frame =  CGRectMake(130, 30, 0, 0);
        }];
        isShown = false;
    }
}
@end