Hello,

I am new to flutter. I have used expanded bottom app bar, i want to close the expanded body when user taps in the outside area. However i dont know how it can be done.

What exactly should be detected in order to close the pulled up expanded bottom bar?

I have migrated expandable-bottom-bar to null-safety.

Changes made

• Migrated library to null-safety
• Migrated example to null-safety
• Updated Dart SDK version to 2.12.0

Please have a look!

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BREAKING:

• [x] Changed isOpen from a method to a getter

Backwards-compatible:

• [x] Documented public members & methods
• [x] Replaced deprecated inheritFromWidgetOfExactType with findAncestorWidgetOfExactType
• [x] Added getters isOpen, isOpening, isClosed, isClosing
• [x] Changed to AnimationStatus for status checking
• [x] Controller notifies listeners when animation status is updated, not just on completion
• [x] Added optional named velocity parameter to close, open and swap methods
• [x] Clarified deprecation message for animation getter

Since the API has a breaking change, this should receive a major version bump and changelog update (not added here). If undesirable, it could of course be done in a backwards-compatible manner by retaining the isOpen method and changing name on the getter.

when i add body to Scaffold, after opening bottom bar with TextField inside expandable-bottom-bar, and click on text field, that cause of scrolling body content, how can i resolve that?

for example

child: Scaffold(
  resizeToAvoidBottomPadding: true,
  backgroundColor: Theme.of(context).canvasColor,
  extendBody: true,
  body: Stack(children: <Widget>[Center(child: Text('aaaaa'))]),

I have migrated expandable-bottom-bar to null-safety.

Changes made

• Migrated library to null-safety
• Migrated example to null-safety
• Updated Dart SDK version to 2.12.0

Please have a look!

Ensure that registered listeners on the BottomBarController are called.

_bottomBarController = BottomBarController(
      vsync: this,
      snap: true,
      dragLength: 200,
    )..addListener(() => print('This fires up anytime ButtomBar is opened or closed '));

Can you please provide a simple working example. The example in the read me file doesn't provide any information on what I need to replace the following with:

// Provide the bar controller in build method or default controller as ancestor in a tree controller: bbc,

What is this controller? What does it do?

Can we get a sample???

Hi, I have a little problem. Whenever I open the bottom bar it pushes the scaffold body up, and in some cases causes overflow error of the scaffold. How can I fix this such that whenever I open the bottom bar it lays directly untop of the scaffold. I attached screenshots.

In google map you drag, One time we can see the category. Second time to reach the full screen and see the detail? is it possible to achieve such a thing?

The overflow warning appears when opening or closing the bottom bar, because some content 'overflows' the screen and is hidden. But I don't understand : that effectively the purpose of the widget, so why does it shows the warning ?