Title: Theory / Unimportant / CS / Descriptive / Material / Component / Bottom

Name: Bottom app bars
Definition: bottom navigation drawer
Page: https://material.io/components/app-bars-bottom#usage
Context: Material
Definition2: up to four actions
Definition3: potentially including the floating action button
DefType: provide access to

Name: Floating action button
Definition: A button on the bar bottom that is not inside the bar.
Page: https://material.io/components/app-bars-bottom#usage
Context: Material
Abbreviation: FAB
Intuition: Button for a main action

Name: Overlap FAB
Definition: FAB at a higher elevation that the bottom app bur, and has no effect on the bar's shape
Page: https://material.io/components/app-bars-bottom#usage
Context: Material

Name: Inset FAB
Definition: AB is at the same elevation as the bottom app bar, and the bar shape transforms to let the FAB dock in a notch carved into the bottom app bar.
Page: https://material.io/components/app-bars-bottom#usage
Context: Material

Question: What happen to the bottom bar when the screen scroll down
Answer: It appears/remains
Page: https://material.io/components/app-bars-bottom#usage
Context: Material

Question: What happen to the bottom bar when the screen scroll up
Answer: It may disappear or remain
Page: https://material.io/components/app-bars-bottom#usage
Context: Material

Question: What happen to the bottom bar when the keyboard opens
Answer: The keyboard hides the bottom bar
Page: https://material.io/components/app-bars-top#behavior
Context: Material

Question: How to relate snackbar and bottom bar?
Page: https://material.io/components/app-bars-bottom#behavior
Context: Material