UIButton Animation Problem

[dalson]

In my application, I have buttons that are moving across the screen, and the objective is to press the buttons as quickly as possible. The animation moves the buttons, but you cannot press the button until the button is in the final position of the animation. Any suggestions/fixes on how to make the button respond to touches while in motion?

Maybe there is an enable or something I am missing?

[sudama]

Originally Posted by dalson

In my application, I have buttons that are moving across the screen, and the objective is to press the buttons as quickly as possible. The animation moves the buttons, but you cannot press the button until the button is in the final position of the animation. Any suggestions/fixes on how to make the button respond to touches while in motion?

Maybe there is an enable or something I am missing?

hello.
were you able to figure this out? I'm having the same problem...

[mer10]

Are you using UIView animateWithDuration:delayptions:animations:compl etion: ,or updating it with a timer?

[sudama]

Originally Posted by mer10

Are you using UIView animateWithDuration:delayptions:animations:compl etion: ,or updating it with a timer?

hi mer10,

I'm using animateWithDuration (or so I think :S)
below is the code Im using.

and, it's textfield, not button btw.

Code:
CGPoint newDownCenter = CGPointMake(135.0, 450); //20.0f + textField.center.y / 2.0f);
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:6.0f];
textField.center = newDownCenter;
[UIView commitAnimations];


***
Right now it wouldn't work (meaning I'm not able to click) so what I do is use a timer and make it move towards the desired place.

Code:
//vertical
if (desiredX != textField.center.x) {
if (desiredX > textField.center.x) {
newLocationX = textField.center.x + 1;
}else{
newLocationX = textField.center.x - 1;
}
}
//horizontal
if (desiredY != textField.center.y) {
newLocationY = textField.center.y + 1;
}

textField.center = CGPointMake(newLocationX, newLocationY);

---
pretty awful code. but this is the only way i was able to make the textfield move and enabled at the same time...
any other suggestions would be very appreciated..

[mer10]

Originally Posted by sudama

hi mer10,

I'm using animateWithDuration (or so I think :S)
below is the code Im using.

and, it's textfield, not button btw.

Code:
CGPoint newDownCenter = CGPointMake(135.0, 450); //20.0f + textField.center.y / 2.0f);
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:6.0f];
textField.center = newDownCenter;
[UIView commitAnimations];


***
Right now it wouldn't work (meaning I'm not able to click) so what I do is use a timer and make it move towards the desired place.

Code:
//vertical
if (desiredX != textField.center.x) {
if (desiredX > textField.center.x) {
newLocationX = textField.center.x + 1;
}else{
newLocationX = textField.center.x - 1;
}
}
//horizontal
if (desiredY != textField.center.y) {
newLocationY = textField.center.y + 1;
}

textField.center = CGPointMake(newLocationX, newLocationY);

---
pretty awful code. but this is the only way i was able to make the textfield move and enabled at the same time...
any other suggestions would be very appreciated..

I've seen worse.

I'd recommend trying using the Apple endorsed method animateWithDuration:delayptions:animations:compl etion: rather than the depreciated methods. If you specify UIViewAnimationOptionAllowUserInteraction in the options you should be able to click it.

[Duncan C]

Originally Posted by sudama

hi mer10,

I'm using animateWithDuration (or so I think :S)
below is the code Im using.

and, it's textfield, not button btw.

Code:
CGPoint newDownCenter = CGPointMake(135.0, 450); //20.0f + textField.center.y / 2.0f);
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:6.0f];
textField.center = newDownCenter;
[UIView commitAnimations];


---snip---

pretty awful code. but this is the only way i was able to make the textfield move and enabled at the same time...
any other suggestions would be very appreciated..

The system turns off user interaction on objects while they are being animated. You can ask it not to do that if you use block-style animation, ( with the method animateWithDuration:delayptions:animations:compl etion: ) as the other poster suggests:

  [UIView animateWithDuration: 6.0f 
  delay: 0
  options: UIViewAnimationOptionAllowUserInteraction
  animations: ^
  {
    textField.center = newDownCenter;
  }
  completion: nil
  ];

The key is the options parameter UIViewAnimationOptionAllowUserInteraction. That tells the system to let the user interact with the object during animation.

[Duncan C]

Originally Posted by mer10

I've seen worse.

I'd recommend trying using the Apple endorsed method animateWithDuration:delayptions:animations:compl etion: rather than the depreciated methods. If you specify UIViewAnimationOptionAllowUserInteraction in the options you should be able to click it.

The beginAnimations...commitAnimations animation style isn't deprecated, but it is discouraged, whatever that means. Here is the relevant quote from the docs.

beginAnimations:context:
Marks the beginning of a begin/commit animation block.

Use of this method is discouraged in iOS 4.0 and later. You should use the block-based animation methods to specify your animations instead.

I still use beginAnimations...commitAnimations style animations for code that's targeted to OS versions <4.0.

[sudama]

mer10, Duncan,

Thanks! You can't imagine how much i spent on google with this problem. X(

I tried using the animateWithDuration as you both said, but unfortunately, it gave me the "uiview may not able to respond to...." warning..
apparently my OS version is too old. :/
(sorry, im a windows user most of the time... :S)

Anyways, Imma gonna try to update my OS and try those codes! But I did some research myself, Im sure it's gonna work!^^ Thanks so much!!

[Duncan C]

Originally Posted by sudama

mer10, Duncan,

Thanks! You can't imagine how much i spent on google with this problem. X(

I tried using the animateWithDuration as you both said, but unfortunately, it gave me the "uiview may not able to respond to...." warning..
apparently my OS version is too old. :/
(sorry, im a windows user most of the time... :S)

Anyways, Imma gonna try to update my OS and try those codes! But I did some research myself, Im sure it's gonna work!^^ Thanks so much!!

Yes, the animateWithDuration: methods require iOS 4.0 or later.

[sudama]

okay, i tried using animateWithDuration both with textfield and button but it's still not working.

Code:
[UIView animateWithDuration:10.0f
delay:0.5f
options:
UIViewAnimationOptionAllowUserInteraction
animations:^{
button.center = CGPointMake(135, 450);
}
completion:nil];


----
I did some researching, and apparently "The touchable part of the button will not coincide with the button's visible frame when it is being animated."
(according to the link below).
iphone - UIButton can't be touched while animated with UIView animateWithDuration - Stack Overflow

anyways, my crappy code up works, so i think I'll stick to that.. and hopefully apple store won't reject my app >.<

Thanks for the info anyways!^^