setColorFilter not working

Question

I\'m trying to implement a simple colorfilter on an imageview to turn the black image into a white image. In order to achieve that I do the following:

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Answer 1

For me, simply calling setColorFilter() on the ImageView wasn't working.

imageView.setColorFilter(ResourcesCompat.getColor(resources, color, null)) //didnt work on 21, only 22+

For whatever reason, on API 21, the only way I could get setColorFilter() to work properly was to post the change to the views message queue.

imageView.post { imageView.setColorFilter(ResourcesCompat.getColor(resources, color, null)) } //this works on 21+