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Stablize gallery status bar height computation (#5485)

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Hans Muller 2016-08-18 12:41:51 -07:00 committed by GitHub
parent 6e9bbca401
commit 7b2f660417
1 changed files with 5 additions and 6 deletions
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11
examples/flutter_gallery/lib/gallery/home.dart
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@ -105,12 +105,6 @@ class GalleryHomeState extends State<GalleryHome> {
void initState() {
super.initState();
// The first item in the list just exists to occupy the space behind
// the flexible app bar. As it's scrolled out of the way, the app bar's
// height will shrink.
final double statusBarHeight = (MediaQuery.of(context)?.padding ?? EdgeInsets.zero).top;
_listItems.add(new SizedBox(height: _kFlexibleSpaceMaxHeight + statusBarHeight));
final ThemeData themeData = Theme.of(context);
final TextStyle headerStyle = themeData.textTheme.body2.copyWith(color: themeData.accentColor);
String category;
@ -134,6 +128,7 @@ class GalleryHomeState extends State<GalleryHome> {
@override
Widget build(BuildContext context) {
final double statusBarHeight = MediaQuery.of(context).padding.top;
return new Scaffold(
key: _homeKey,
scrollableKey: _scrollableKey,
@ -159,8 +154,12 @@ class GalleryHomeState extends State<GalleryHome> {
)
),
appBarBehavior: AppBarBehavior.under,
// The block's padding just exists to occupy the space behind the flexible app bar.
// As the block's padded region is scrolled upwards, the app bar's height will
// shrink keep it above the block content's and over the padded region.
body: new Block(
scrollableKey: _scrollableKey,
padding: new EdgeInsets.only(top: _kFlexibleSpaceMaxHeight + statusBarHeight),
children: _listItems
)
);