CODEWITHSUNDEEP
objective-ciosios4
munibsiddiqui
munibsiddiqui

Reputation: 435

FadeIn FadeOut Animation on UIButtons

I have two UIButton Let say:

UIButton *product UIButton *nextProduct

i am setting the image on each button with respect to the product.

i want to animate the buttons in such a way that one button fadein while second is fadeout.

kindly help me out

Upvotes: 2

Views: 703

Answers (2)

Konrad77
Konrad77

Reputation: 2535

I Would use the new block API instead. I don't know if the first answer would let the user interact with the controls during the animations. I had a similar case and used the code beneath. The key is the options:UIViewAnimationOptionAllowUserInteraction

[UIView animateWithDuration:0.5f 
                      delay:0.0f
                    options:UIViewAnimationOptionAllowUserInteraction 
                 animations:^(void) {
    [product setAlpha:0.0f];
    [nextProduct setAlpha:1.0f];

} completion:^(BOOL finished) {
    //Maybe set the new alpha here when the first animation is done?
}];

Upvotes: 1

0x90
0x90

Reputation: 6259

Wrap the changes you want animated between UIView beginAnimations and UIView commitAnimations.

[UIView beginAnimations:nil context:nil];

product.alpha = 0;
nextProduct.alpha = 1;

[UIView commitAnimations];

Check the UIView documentation for how to customize timing and appearance.

Upvotes: 0

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