Persistent Bottom Sheet – Android Studio Tutorial
In this tutorial we will learn, how to create a persistent bottom sheet, which we can drag up and down to show and hide its content. For the sheet we will use a NestedScrollView and set it’s layout_behavior to « BottomSheetBehavior » to tell the system that we want to use this NestedScrollView as our bottom sheet. We will also define a peekHeight and set hideable to true, so we can completely swipe it off the screen.
In Java code we will then also collapse and expand it programmatically (on button click) by calling setState on our BottomSheetBehavior and passing a state constant to it. Also we will listen for state changes on our bottom sheet by setting a BottomSheetCallback to it and react to STATE_COLLAPSED, STATE_DRAGGING, STATE_EXPANDED, STATE_HIDDEN, STATE_SETTLING and onSlide.
Check out the MODAL bottom sheet video:
Design Support Library:
https://developer.android.com/topic/libraries/support-library/packages.html#design
Source code:
https://gist.github.com/codinginflow/68caeca165f88cfb3b64c66df448f356
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