Feature request: Error state annimation about android-material-stepper HOT 7 CLOSED

Hi @arslancharyev31,
That sounds like a nice enhancement!
I'm wondering about the default animation to use though as I'm not sure about Material guidelines for displaying errors with animations. The official documentation doesn't specify this: https://material.io/guidelines/components/steppers.html#steppers-types-of-steppers :/

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I think the animation like the one of shaking button in the sample app would look appropriate. Support for custom anim would also seem feasable, in case someone is not satisfied with default one.

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This feature is partially done on feature/issue-69 branch, however after looking at the final animation it feels a bit odd. I think a more Material animation should take place instead, e.g. the circle with step number should morph into the warning icon (possibly by using an animated vector drawable). This will be more time consuming though...

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Morphing sounds cool. Is it going to look something like this?

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It's something I had in mind :)

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What about the number in the center of the circle? I have some trouble imagining morphing of a number into triangle :P

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Released in 3.0.0

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