Proposal: Different views for peek and expanded states. about bottomsheet HOT 3 OPEN

Hi @albertogarrido. This library currently doesn't have support for a sheet that is always open. All of the options you mentioned would have problems.

For example: you could get pretty close to what you want by using the second option you mentioned. You can control the darkening of the content and also how it's scaled by using a custom ViewTransformer in the showWithSheetView method. It would still be possible to close the sheet completely though, which is not what you want

If you'd like to open a pull request for changes to support this, we can discuss approaches here

from bottomsheet.

@albertogarrido that seems like a similar API to https://github.com/umano/AndroidSlidingUpPanel/

Would love to have a similar implementation for this built into the components module, but not sure about the best approach. As mark said, very open to ideas!

from bottomsheet.

So I think it would be possible to do this with a fancy ViewTransformer and a nice API. The "peeked" view would be measured at a maximum height of whatever the layout's peeked height is, with support for inverting control to the component sheet to set the peek height based on the wrap-content height of the collapsed view.

API:

• View would be a FrameLayout effectively with two child views. Peeked view would have gravity to the top, and expanded view would match parent
• setPeekedView(View v)
• setExpandedView(View v)
• setViewTransformer, where this would be a custom transformer that interpolates between the peeked and expanded views
• XML attribute support for declaring the view in XML with attributes pointing to the IDs of the peeked and expanded views

from bottomsheet.