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fix crash in flutter2; use correct way to filter nullable widgets #71

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fix crash in flutter2; use correct way to filter nullable widgets #71

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9 changes: 5 additions & 4 deletions lib/inner_drawer.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -5,8 +5,9 @@
// https://github.com/flutter/flutter/blob/master/packages/flutter/lib/src/material/drawer.dart

import 'dart:math';
import 'package:flutter/material.dart';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';

/// Signature for the callback that's called when a [InnerDrawer] is
Expand Down Expand Up @@ -433,8 +434,8 @@ class InnerDrawerState extends State<InnerDrawer>

final Widget scaffoldChild = Stack(
children: <Widget?>[widget.scaffold, invC != null ? invC : null]
.where((a) => a != null)
.toList() as List<Widget>,
.whereType<Widget>()
.toList(),
);

Widget container = Container(
Expand Down Expand Up @@ -617,7 +618,7 @@ class InnerDrawerState extends State<InnerDrawer>
///Trigger
_trigger(AlignmentDirectional.centerStart, _leftChild),
_trigger(AlignmentDirectional.centerEnd, _rightChild),
].where((a) => a != null).toList() as List<Widget>,
].whereType<Widget>().toList(),
),
),
),
Expand Down