Animation

[sacha1996]

Hi,
I have an UIImageView called myImage.
I've implemented the code in an button the make the frame +100 height and width...
So when I press the button it's being bigger.
Code :

-(IBAction)pushButton {
	
    CGRect newFrame = myImage.frame;
    newFrame.size.width = myImage.frame.size.width+100;
    newFrame.size.height= myImage.frame.size.height+100;
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.9];
    [myImage setFrame:newFrame];
    [UIView commitAnimations];
    [UIView setAnimationDelegate:self];
}

All is working fine , but I want to add some code I don't know.
1 - I want to hide the imageview tilll the user press the button. So no image , user press , image comes with an animation of +100 for the frame size.

2 - After 0.9 second I want the animation stops and hide itself as the before pressing the button.

Can anyone please help me ?

Thankyou

[dany_dev]

you can use .hidden property to hide your image and a NSSTimer to fire an event after x seconds.

[aziz]

// Delay execution of my block for 0.9 seconds.
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 0.9 * NSEC_PER_SEC), dispatch_get_current_queue(), ^{
		myButton.hidden=YES;
	});

[matt62king]

Use the the UIView animation blocks and you can set an action to be called when the animation is completed.

[nobre84]

on viewDidLoad set myImage.hidden = YES;
on pushButton, you set myImage.hidden = NO, then your animation.
Then you add this along with your animation :

-(IBAction)pushButton {
	
    CGRect newFrame = myImage.frame;
    newFrame.size.width = myImage.frame.size.width+100;
    newFrame.size.height= myImage.frame.size.height+100;
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.9];
    // set yourself as the animation delegate
    [UIView setAnimationDelegate:self];
    // tell the animation block what method to call when it finishes
    [UIView setAnimationDidStopSelector:@selector(hideImage)];
    [myImage setFrame:newFrame];
    [UIView commitAnimations];
}

//this will be called after your animation ends.
-(void)hideImage {
  myImage.hidden = YES;
}

[sacha1996]

Originally Posted by nobre84

on viewDidLoad set myImage.hidden = YES;
on pushButton, you set myImage.hidden = NO, then your animation.
Then you add this along with your animation :

-(IBAction)pushButton {
	
    CGRect newFrame = myImage.frame;
    newFrame.size.width = myImage.frame.size.width+100;
    newFrame.size.height= myImage.frame.size.height+100;
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.9];
    // set yourself as the animation delegate
    [UIView setAnimationDelegate:self];
    // tell the animation block what method to call when it finishes
    [UIView setAnimationDidStopSelector:@selector(hideImage)];
    [myImage setFrame:newFrame];
    [UIView commitAnimations];
}

//this will be called after your animation ends.
-(void)hideImage {
  myImage.hidden = YES;
}

Thanks everyone !
nobre84 : your code imazing , but I have still one thing to add to it if available.
The imageview is from 0 to 100 after the button push (frame +100) , but when i press again it stills goes from 100 to 200 , but I want after the animation the frame size resets so after second push it will be the same as the first one.
So first push from 0 to 100
Second push from 0 to 100
Third push from 0 to 100 and for all the pushes like this.
What's the code for that ?

Thankyou

[nobre84]

Just reset the frame to the desired value when you hide it