# Animation when source of an image changes

**URL:** <https://forums.fusetools.com/t/animation-when-source-of-an-image-changes/6638>\
**Category:** How-to Discussions\
**Created:** [August 3, 2016, 2:36pm UTC](https://forums.fusetools.com/t/animation-when-source-of-an-image-changes/6638 "2016-08-03T14:36:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Juanlu](https://avatars.discourse-cdn.com/v4/letter/j/47e85d/32.png) [@Juanlu](https://forums.fusetools.com/u/Juanlu)\
**Post date:** [August 3, 2016, 2:36pm UTC](https://forums.fusetools.com/t/animation-when-source-of-an-image-changes/6638/1 "2016-08-03T14:36:45Z")

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I have read the docs and I can’t see any trigger that allow me to make an animation when a source file of an image changes. Is that possible using only UX Markup?

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**Author:** ![Anders\_Bondehagen](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/anders_bondehagen/32/98_2.png) [@Anders\_Bondehagen](https://forums.fusetools.com/u/Anders_Bondehagen)\
**Post date:** [August 9, 2016, 12:26pm UTC](https://forums.fusetools.com/t/animation-when-source-of-an-image-changes/6638/2 "2016-08-09T12:26:19Z")

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You can have an `Observable` that listens to it and then a `WhileTrue` trigger.