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Description:

expandable bottom bar

ExpandableBottomAppBar #

Animatable bottom app bar with expandable sheet
Preview #

Getting Started #
Add the plugin:
dependencies:
...
expandable_bottom_bar: any
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Basic Usage #
Adding the widget
bottomNavigationBar: BottomExpandableAppBar(
// Provide the bar controller in build method or default controller as ancestor in a tree
controller: bbc,
expandedHeight: expandedHeight.value,
horizontalMargin: 16,
expandedBackColor: Theme.of(context).backgroundColor,
// Your bottom sheet code here
expandedBody: Center(
child: Text("Hello world!"),
),
// Your bottom app bar code here
bottomAppBarBody: Padding(
padding: const EdgeInsets.all(8.0),
child: Row(
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Expanded(
child: Text(
"Hello",
textAlign: TextAlign.center,
),
),
Spacer(
flex: 2,
),
Expanded(
child: Text(
"World",
textAlign: TextAlign.center,
),
),
],
),
),
)
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Customization (Optional) #
BottomExpandableAppBar #
horizontalMargin - distance of sheet's sides from edge
bottomOffset - distance of top sheet's edge from top appbar's edge in closed state
shape - notch shape for FAB
appBarHeight - if you need change app bar height
bottomAppBarColor - background color of appbar container
or
appBarDecoration - decoration of appbar container
expandedBackColor - background color of sheet container
or
expandedDecoration - decoration of sheet container
Controls #
BottomAppBarController #
Settings
snap - if true sheet will snap to opened and closed state
dragLength - distance that pointer should travel for fully open/close the sheet
Callbacks
Should have dragLength defined
onDrag - use that with GestureDetector for swipe control
onDragEnd - use that with GestureDetector for swipe control
open - switch the sheet to closed state
close - switch the sheet to opened state
swap - if sheet is opened closes the sheet and vice versa