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gesture insets fix

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This commit is contained in:
Thibault Deckers 2021-02-17 14:38:19 +09:00
parent f16d98ba2b
commit d5cfab6236
1 changed files with 3 additions and 10 deletions
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13
lib/widgets/common/basic/insets.dart
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@ -7,23 +7,16 @@ import 'package:provider/provider.dart';
// - a vertically scrollable body. // - a vertically scrollable body.
// It will prevent the body from scrolling when a user swipe from bottom to use Android Q style navigation gestures. // It will prevent the body from scrolling when a user swipe from bottom to use Android Q style navigation gestures.
class BottomGestureAreaProtector extends StatelessWidget { class BottomGestureAreaProtector extends StatelessWidget {
// as of Flutter v1.22.5, `systemGestureInsets` from `MediaQuery` mistakenly reports no bottom inset,
// so we use an empirical measurement instead
static const double systemGestureInsetsBottom = 32;
@override @override
Widget build(BuildContext context) { Widget build(BuildContext context) {
return Selector<MediaQueryData, double>( return Selector<MediaQueryData, double>(
selector: (c, mq) => mq.effectiveBottomPadding, selector: (c, mq) => mq.systemGestureInsets.bottom,
builder: (c, mqPaddingBottom, child) { builder: (c, systemGestureBottom, child) {
// devices with physical navigation buttons have no bottom insets
// we assume these devices do not use gesture navigation
if (mqPaddingBottom == 0) return SizedBox();
return Positioned( return Positioned(
left: 0, left: 0,
right: 0, right: 0,
bottom: 0, bottom: 0,
height: systemGestureInsetsBottom, height: systemGestureBottom,
child: AbsorbPointer(), child: AbsorbPointer(),
); );
}, },