My problem is the next. I would use relatively large texts as CollapsingToolbarLayout title so I need to show it as multiline mode. When I try to change text appearance through
This doesn't seem to be supported at present. A possible workaround is to use your own view and hide the toolbar title when expanded. One approach to do this is here:
https://stackoverflow.com/a/31529101/834692
Hopefully a future version of the Support Library will add this.