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fullscreen: transparency while popping by drag down

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This commit is contained in:
Thibault Deckers 2019-12-26 18:17:37 +09:00
parent 582afba3e9
commit 68766d0e17
2 changed files with 51 additions and 16 deletions
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26
lib/widgets/album/thumbnail_collection.dart
View file

@ -157,26 +157,26 @@ class SectionSliver extends StatelessWidget {
}
void _showFullscreen(BuildContext context, ImageEntry entry) {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => FullscreenPage(
collection: collection,
initialUri: entry.uri,
),
),
);
// TODO TLAD consider the following to have transparency while popping fullscreen by drag down
// Navigator.push(
// context,
// PageRouteBuilder(
// opaque: false,
// pageBuilder: (BuildContext context, _, __) => FullscreenPage(
// MaterialPageRoute(
// builder: (context) => FullscreenPage(
// collection: collection,
// initialUri: entry.uri,
// ),
// ),
// );
// TODO TLAD consider the following to have transparency while popping fullscreen by drag down
Navigator.push(
context,
PageRouteBuilder(
opaque: false,
pageBuilder: (BuildContext context, _, __) => FullscreenPage(
collection: collection,
initialUri: entry.uri,
),
),
);
}
}

41
lib/widgets/fullscreen/fullscreen_page.dart
View file

@ -36,7 +36,7 @@ class FullscreenPage extends AnimatedWidget {
collection: collection,
initialUri: initialUri,
),
backgroundColor: Colors.black,
backgroundColor: Colors.transparent,
resizeToAvoidBottomInset: false,
),
);
@ -298,6 +298,38 @@ class FullscreenVerticalPageView extends StatefulWidget {
class _FullscreenVerticalPageViewState extends State<FullscreenVerticalPageView> {
bool _isInitialScale = true;
Color _background = Colors.black;
@override
void initState() {
super.initState();
_registerWidget(widget);
}
@override
void didUpdateWidget(FullscreenVerticalPageView oldWidget) {
super.didUpdateWidget(oldWidget);
_unregisterWidget(oldWidget);
_registerWidget(widget);
}
@override
void dispose() {
super.dispose();
_unregisterWidget(widget);
}
void _registerWidget(FullscreenVerticalPageView widget) {
widget.verticalPager.addListener(_onVerticalPageControllerChange);
}
void _unregisterWidget(FullscreenVerticalPageView widget) {
widget.verticalPager.removeListener(_onVerticalPageControllerChange);
}
void _onVerticalPageControllerChange() {
setState(() => _background = _background.withOpacity(min(1.0, widget.verticalPager.page)));
}
@override
Widget build(BuildContext context) {
@ -307,9 +339,12 @@ class _FullscreenVerticalPageViewState extends State<FullscreenVerticalPageView>
physics: _isInitialScale ? const PageScrollPhysics() : const NeverScrollableScrollPhysics(),
onPageChanged: widget.onVerticalPageChanged,
children: [
const SizedBox(),
Container(
color: Colors.black,
color: _background,
child: const SizedBox(),
),
Container(
color: _background,
child: ImagePage(
collection: widget.collection,
pageController: widget.horizontalPager,