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Setting and instantly animating a property fails for iOS #1218
Description
In iOS, the following code:
button.backgroundColor = "#FF0000"
button.animate({
backgroundColor: new colorModule.Color("#00FFFF"),
duration: 500
});Animates a button's background from white (the default) to teal #00FFFF without setting it to red initially #FF0000. So I guess the animation works, but somehow overrides/ignores the button.backgroundColor = "#FF0000" setter.
This was working before the following feature was introduced: #936 The problem is using the UIViewKeyframeAnimationOptionBeginFromCurrentState key to allow animations to interrupt a previous animation from the middle and continue smoothly.
As a workaround you can chain two animations:
button.animate({
backgroundColor: new colorModule.Color("#FF0000"),
duration: 10
}).then(function() {
return button.animate({
backgroundColor: new colorModule.Color("#00FFFF"),
duration: 500
});
}Both are common concepts but seem to be mutually exclusive for iOS. We will have to find alternative for the animation API that works in both cases or control the behavior with a property.
Activity
vchimev commentedon Feb 8, 2016
It still does not work for a label view. PR: #1501.
Add animations test page to ui-tests-app
lock commentedon Aug 30, 2019
This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.