PreferredSizeWidget
PreferredSizeWidget (preferred_size.dart)
AppBar (app_bar.dart)
CupertinoTabBar (bottom_tab_bar.dart)
ObstructingPreferredSizeWidget (page_scaffold.dart)
CupertinoNavigationBar (nav_bar.dart)
PreferredSize (preferred_size.dart)
TabBar (tabs.dart)
ProxyWidget
Diagnosticable (diagnostics.dart)
DiagnosticableTree (diagnostics.dart)
Widget (framework.dart)
ProxyWidget (framework.dart)
InheritedWidget (framework.dart)
_FocusScopeMarker (focus_scope.dart)
_FormScope (form.dart)
_InheritedCupertinoTheme (theme.dart)
_InheritedNestedScrollView (nested_scroll_view.dart)
_InheritedTheme (theme.dart)
_LocalizationsScope (localizations.dart)
_ModalScopeStatus (routes.dart)
_ScaffoldScope (scaffold.dart)
_ScrollableScope (scrollable.dart)
_TabControllerScope (tab_controller.dart)
ButtonTheme (button_theme.dart)
ChipTheme (chip_theme.dart)
DefaultAssetBundle (basic.dart)
DefaultTextStyle (text.dart)
Directionality (basic.dart)
DropdownButtonHideUnderline (dropdown.dart)
FlexibleSpaceBarSettings (flexible_space_bar.dart)
IconTheme (icon_theme.dart)
InheritedModel (inherited_model.dart)
InheritedNotifier (inherited_notifier.dart)
ListTileTheme (list_tile.dart)
MediaQuery (media_query.dart)
PrimaryScrollController (primary_scroll_controller.dart)
ScrollConfiguration (scroll_configuration.dart)
SliderTheme (slider_theme.dart)
TickerMode (ticker_provider.dart)
ParentDataWidget (framework.dart)
_ActionButtonParentDataWidget (action_sheet.dart)
_ActionButtonParentDataWidget (dialog.dart)
Flexible (basic.dart)
Expanded (basic.dart)
KeepAlive (sliver.dart)
LayoutId (basic.dart)
Positioned (basic.dart)
TableCell (table.dart)
RenderObjectWidget
Diagnosticable (diagnostics.dart)
DiagnosticableTree (diagnostics.dart)
Widget (framework.dart)
RenderObjectWidget (framework.dart)
_ChipRenderWidget (chip.dart)
_CupertinoAlertRenderWidget (action_sheet.dart)
_CupertinoDialogRenderWidget (dialog.dart)
_Decorator (input_decorator.dart)
_ListTile (list_tile.dart)
_SliverPersistentHeaderRenderObjectWidget (sliver_persistent_header.dart)
_SliverFloatingPersistentHeader (sliver_persistent_header.dart)
_SliverFloatingPinnedPersistentHeader (sliver_persistent_header.dart)
_SliverPinnedPersistentHeader (sliver_persistent_header.dart)
_SliverScrollingPersistentHeader (sliver_persistent_header.dart)
_Theatre (overlay.dart)
LayoutBuilder (layout_builder.dart)
LeafRenderObjectWidget (framework.dart)
_AndroidPlatformView (platform_view.dart)
_CheckboxRenderObjectWidget (checkbox.dart)
_CupertinoSliderRenderObjectWidget (slider.dart)
_CupertinoSwitchRenderObjectWidget (switch.dart)
_Editable (editable_text.dart)
_InspectorOverlay (widget_inspector.dart)
_RadioRenderObjectWidget (radio.dart)
_SliderRenderObjectWidget (slider.dart)
_SwitchRenderObjectWidget (switch.dart)
_UiKitPlatformView (platform_view.dart)
ErrorWidget (framework.dart)
PerformanceOverlay (performance_overlay.dart)
RawImage (basic.dart)
RichText (basic.dart)
Texture (texture.dart)
WidgetToRenderBoxAdapter (basic.dart)
ListWheelViewport (list_wheel_scroll_view.dart)
MultiChildRenderObjectWidget (framework.dart)
_CupertinoAlertActionsRenderWidget (action_sheet.dart)
_CupertinoDialogActionsRenderWidget (dialog.dart)
_SegmentedControlRenderWidget (segmented_control.dart)
CustomMultiChildLayout (basic.dart)
Flex (basic.dart)
_TabLabelBar (tabs.dart)
Column (basic.dart)
Row (basic.dart)
Flow (basic.dart)
ListBody (basic.dart)
_MergeableMaterialListBody (mergeable_material.dart)
ShrinkWrappingViewport (viewport.dart)
Stack (basic.dart)
IndexedStack (basic.dart)
Viewport (viewport.dart)
NestedScrollViewViewport (nested_scroll_view.dart)
Wrap (basic.dart)
RenderObjectToWidgetAdapter (binding.dart)
SingleChildRenderObjectWidget (framework.dart)
_ChildOverflowBox (floating_action_button.dart)
_ChipRedirectingHitDetectionWidget (chip.dart)
_CupertinoPickerSemantics (picker.dart)
_CupertinoSliverRefresh (refresh.dart)
_GestureSemantics (gesture_detector.dart)
_InkFeatures (material.dart)
_InputPadding (button.dart)
_ScrollSemantics (scrollable.dart)
_SingleChildViewport (single_child_scroll_view.dart)
AbsorbPointer (basic.dart)
Align (basic.dart)
Center (basic.dart)
AnimatedSize (animated_size.dart)
AnnotatedRegion (annotated_region.dart)
AspectRatio (basic.dart)
BackdropFilter (basic.dart)
Baseline (basic.dart)
BlockSemantics (basic.dart)
ClipOval (basic.dart)
ClipPath (basic.dart)
ClipRect (basic.dart)
ClipRRect (basic.dart)
CompositedTransformFollower (basic.dart)
CompositedTransformTarget (basic.dart)
ConstrainedBox (basic.dart)
CustomPaint (basic.dart)
CustomSingleChildLayout (basic.dart)
DecoratedBox (container.dart)
ExcludeSemantics (basic.dart)
FadeTransition (transitions.dart)
FittedBox (basic.dart)
FractionallySizedBox (basic.dart)
FractionalTranslation (basic.dart)
IgnorePointer (basic.dart)
IndexedSemantics (basic.dart)
IntrinsicHeight (basic.dart)
IntrinsicWidth (basic.dart)
LimitedBox (basic.dart)
Listener (basic.dart)
MergeSemantics (basic.dart)
MetaData (basic.dart)
Offstage (basic.dart)
Opacity (basic.dart)
OverflowBox (basic.dart)
Padding (basic.dart)
PhysicalModel (basic.dart)
PhysicalShape (basic.dart)
RepaintBoundary (basic.dart)
RotatedBox (basic.dart)
Semantics (basic.dart)
ShaderMask (basic.dart)
SizeChangedLayoutNotifier (size_changed_layout_notifier.dart)
SizedBox (basic.dart)
SizedOverflowBox (basic.dart)
SliverFillRemaining (sliver.dart)
SliverOverlapAbsorber (nested_scroll_view.dart)
SliverOverlapInjector (nested_scroll_view.dart)
SliverPadding (basic.dart)
SliverToBoxAdapter (basic.dart)
Transform (basic.dart)
UnconstrainedBox (basic.dart)
SliverWithKeepAliveWidget (sliver.dart)
SliverMultiBoxAdaptorWidget (sliver.dart)
SliverFillViewport (sliver.dart)
SliverFixedExtentList (sliver.dart)
SliverGrid (sliver.dart)
SliverList (sliver.dart)
SliverPrototypeExtentList (sliver_prototype_extent_list.dart)
Table (table.dart)
StatefulWidget
Diagnosticable (diagnostics.dart)
DiagnosticableTree (diagnostics.dart)
Widget (framework.dart)
StatefulWidget (framework.dart)
_AccountDetails (user_accounts_drawer_header.dart)
_BorderContainer (input_decorator.dart)
_CupertinoActionSheetCancelButton (action_sheet.dart)
_CupertinoAlertActionSection (action_sheet.dart)
_CupertinoAlertActionSection (dialog.dart)
_CupertinoBackGestureDetector (route.dart)
_DatePickerDialog (date_picker.dart)
_Dial (time_picker.dart)
_DropdownMenu (dropdown.dart)
_FloatingActionButtonTransition (scaffold.dart)
_FloatingAppBar (app_bar.dart)
_HelperError (input_decorator.dart)
_ModalBottomSheet (bottom_sheet.dart)
_ModalScope (routes.dart)
_OutlineButton (outline_button.dart)
_OverlayEntry (overlay.dart)
_PersistentBottomSheet (scaffold.dart)
_PressableActionButton (action_sheet.dart)
_PressableActionButton (dialog.dart)
_ReorderableListContent (reorderable_list.dart)
_SearchPage (search.dart)
_SortArrow (data_table.dart)
_TabSwitchingView (tab_scaffold.dart)
_TextSelectionHandleOverlay (text_selection.dart)
_TimePickerDialog (time_picker.dart)
AndroidView (platform_view.dart)
AnimatedCrossFade (animated_cross_fade.dart)
AnimatedList (animated_list.dart)
AnimatedSwitcher (animated_switcher.dart)
AnimatedWidget (transitions.dart)
_Shaker (input_decorator.dart)
_TabStyle (tabs.dart)
AlignTransition (transitions.dart)
AnimatedBuilder (transitions.dart)
AnimatedModalBarrier (modal_barrier.dart)
DecoratedBoxTransition (transitions.dart)
DefaultTextStyleTransition (transitions.dart)
PositionedTransition (transitions.dart)
RelativePositionedTransition (transitions.dart)
RotationTransition (transitions.dart)
ScaleTransition (transitions.dart)
SizeTransition (transitions.dart)
SlideTransition (transitions.dart)
AppBar (app_bar.dart)
AutomaticKeepAlive (automatic_keep_alive.dart)
BottomAppBar (bottom_app_bar.dart)
BottomNavigationBar (bottom_navigation_bar.dart)
BottomSheet (bottom_sheet.dart)
Checkbox (checkbox.dart)
CupertinoActivityIndicator (activity_indicator.dart)
CupertinoApp (app.dart)
CupertinoButton (button.dart)
CupertinoDatePicker (date_picker.dart)
CupertinoNavigationBar (nav_bar.dart)
CupertinoPageScaffold (page_scaffold.dart)
CupertinoPicker (picker.dart)
CupertinoScrollbar (scrollbar.dart)
CupertinoSegmentedControl (segmented_control.dart)
CupertinoSlider (slider.dart)
CupertinoSliverNavigationBar (nav_bar.dart)
CupertinoSliverRefreshControl (refresh.dart)
CupertinoSwitch (switch.dart)
CupertinoTabScaffold (tab_scaffold.dart)
CupertinoTabView (tab_view.dart)
CupertinoTextField (text_field.dart)
CupertinoTimerPicker (date_picker.dart)
DefaultTabController (tab_controller.dart)
Dismissible (dismissible.dart)
Draggable (drag_target.dart)
LongPressDraggable (drag_target.dart)
DraggableScrollableSheet (draggable_scrollable_sheet.dart)
DragTarget (drag_target.dart)
DrawerController (drawer.dart)
DropdownButton (dropdown.dart)
EditableText (editable_text.dart)
ExpandIcon (expand_icon.dart)
ExpansionPanelList (expansion_panel.dart)
ExpansionTile (expansion_tile.dart)
FadeInImage (fade_in_image.dart)
FlexibleSpaceBar (flexible_space_bar.dart)
FocusScope (focus_scope.dart)
Form (form.dart)
FormField (form.dart)
DropdownButtonFormField (dropdown.dart)
TextFormField (text_form_field.dart)
FutureBuilder (async.dart)
GlowingOverscrollIndicator (overscroll_indicator.dart)
Hero (heroes.dart)
Image (image.dart)
ImplicitlyAnimatedWidget (implicit_animations.dart)
_MaterialInterior (material.dart)
AnimatedAlign (implicit_animations.dart)
AnimatedContainer (implicit_animations.dart)
AnimatedDefaultTextStyle (implicit_animations.dart)
AnimatedOpacity (implicit_animations.dart)
AnimatedPadding (implicit_animations.dart)
AnimatedPhysicalModel (implicit_animations.dart)
AnimatedPositioned (implicit_animations.dart)
AnimatedPositionedDirectional (implicit_animations.dart)
AnimatedTheme (theme.dart)
Ink (ink_decoration.dart)
InkResponse (ink_well.dart)
InkWell (ink_well.dart)
TableRowInkWell (data_table.dart)
InputDecorator (input_decorator.dart)
LicensePage (about.dart)
ListWheelScrollView (list_wheel_scroll_view.dart)
Localizations (localizations.dart)
Material (material.dart)
MaterialApp (app.dart)
MergeableMaterial (mergeable_material.dart)
MonthPicker (date_picker.dart)
Navigator (navigator.dart)
NestedScrollView (nested_scroll_view.dart)
Overlay (overlay.dart)
PageView (page_view.dart)
PaginatedDataTable (paginated_data_table.dart)
PopupMenuButton (popup_menu.dart)
PopupMenuEntry (popup_menu.dart)
PopupMenuDivider (popup_menu.dart)
PopupMenuItem (popup_menu.dart)
CheckedPopupMenuItem (popup_menu.dart)
ProgressIndicator (progress_indicator.dart)
CircularProgressIndicator (progress_indicator.dart)
RefreshProgressIndicator (progress_indicator.dart)
LinearProgressIndicator (progress_indicator.dart)
Radio (radio.dart)
RawChip (chip.dart)
RawGestureDetector (gesture_detector.dart)
RawKeyboardListener (raw_keyboard_listener.dart)
RawMaterialButton (button.dart)
RefreshIndicator (refresh_indicator.dart)
ReorderableListView (reorderable_list.dart)
Scaffold (scaffold.dart)
Scrollable (scrollable.dart)
_FixedExtentScrollable (list_wheel_scroll_view.dart)
Scrollbar (scrollbar.dart)
SemanticsDebugger (semantics_debugger.dart)
Slider (slider.dart)
SliverAppBar (app_bar.dart)
SnackBarAction (snack_bar.dart)
StatefulBuilder (basic.dart)
StatusTransitionWidget (status_transitions.dart)
Stepper (stepper.dart)
StreamBuilderBase (async.dart)
StreamBuilder (async.dart)
Switch (switch.dart)
TabBar (tabs.dart)
TabBarView (tabs.dart)
TextField (text_field.dart)
TextSelectionGestureDetector (text_selection.dart)
Tooltip (tooltip.dart)
UiKitView (platform_view.dart)
UniqueWidget (unique_widget.dart)
UserAccountsDrawerHeader (user_accounts_drawer_header.dart)
ValueListenableBuilder (value_listenable_builder.dart)
WidgetInspector (widget_inspector.dart)
WidgetsApp (app.dart)
WillPopScope (will_pop_scope.dart)
YearPicker (date_picker.dart)
StatelessWidget
Diagnosticable (diagnostics.dart)
DiagnosticableTree (diagnostics.dart)
Widget (framework.dart)
StatelessWidget (framework.dart)
_AccountPictures (user_accounts_drawer_header.dart)
_AffixText (input_decorator.dart)
_BackChevron (nav_bar.dart)
_BackLabel (nav_bar.dart)
_BodyBuilder (scaffold.dart)
_BottomNavigationTile (bottom_navigation_bar.dart)
_CupertinoAlertContentSection (action_sheet.dart)
_CupertinoAlertContentSection (dialog.dart)
_DateHeaderButton (date_picker.dart)
_DatePickerHeader (date_picker.dart)
_DayPeriodControl (time_picker.dart)
_DropdownRoutePage (dropdown.dart)
_FadeUpwardsPageTransition (page_transitions_theme.dart)
_HourControl (time_picker.dart)
_Label (bottom_navigation_bar.dart)
_MinuteControl (time_picker.dart)
_NavigationBarTransition (nav_bar.dart)
_OpenUpwardsPageTransition (page_transitions_theme.dart)
_PersistentNavigationBar (nav_bar.dart)
_PopupMenu (popup_menu.dart)
_ShapeBorderPaint (material.dart)
_StringFragment (time_picker.dart)
_TextSelectionToolbar (text_selection.dart)
_TextSelectionToolbar (text_selection.dart)
_TileIcon (bottom_navigation_bar.dart)
_TimePickerHeader (time_picker.dart)
_TooltipOverlay (tooltip.dart)
_TransitionableNavigationBar (nav_bar.dart)
AboutDialog (about.dart)
AboutListTile (about.dart)
ActionChip (chip.dart)
AlertDialog (dialog.dart)
AnimatedIcon (material_animated_icons)
BackButton (back_button.dart)
BackButtonIcon (back_button.dart)
Banner (banner.dart)
Builder (basic.dart)
ButtonBar (button_bar.dart)
Card (card.dart)
CheckboxListTile (checkbox_list_tile.dart)
CheckedModeBanner (banner.dart)
Chip (chip.dart)
ChoiceChip (chip.dart)
CircleAvatar (circle_avatar.dart)
CloseButton (back_button.dart)
Container (container.dart)
CupertinoActionSheet (action_sheet.dart)
CupertinoActionSheetAction (action_sheet.dart)
CupertinoAlertDialog (dialog.dart)
CupertinoDialog (dialog.dart)
CupertinoDialogAction (dialog.dart)
CupertinoFullscreenDialogTransition (route.dart)
CupertinoNavigationBarBackButton (nav_bar.dart)
CupertinoPageTransition (route.dart)
CupertinoPopupSurface (dialog.dart)
CupertinoTabBar (bottom_tab_bar.dart)
CupertinoTheme (theme.dart)
DataTable (data_table.dart)
DayPicker (date_picker.dart)
Dialog (dialog.dart)
Divider (divider.dart)
Drawer (drawer.dart)
DrawerHeader (drawer_header.dart)
DropdownMenuItem (dropdown.dart)
FilterChip (chip.dart)
FloatingActionButton (floating_action_button.dart)
FlutterLogo (flutter_logo.dart)
GestureDetector (gesture_detector.dart)
GridPaper (grid_paper.dart)
GridTile (grid_tile.dart)
GridTileBar (grid_tile_bar.dart)
Icon (icon.dart)
IconButton (icon_button.dart)
ImageIcon (image_icon.dart)
InputChip (chip.dart)
KeyedSubtree (basic.dart)
ListTile (list_tile.dart)
MaterialButton (material_button.dart)
FlatButton (flat_button.dart)
_FlatButtonWithIcon (flat_button.dart)
OutlineButton (outline_button.dart)
_OutlineButtonWithIcon (outline_button.dart)
RaisedButton (raised_button.dart)
_RaisedButtonWithIcon (raised_button.dart)
ModalBarrier (modal_barrier.dart)
NavigationToolbar (navigation_toolbar.dart)
NotificationListener (notification_listener.dart)
OrientationBuilder (orientation_builder.dart)
PageStorage (page_storage.dart)
Placeholder (placeholder.dart)
PositionedDirectional (basic.dart)
PreferredSize (preferred_size.dart)
RadioListTile (radio_list_tile.dart)
SafeArea (safe_area.dart)
ScrollView (scroll_view.dart)
BoxScrollView (scroll_view.dart)
GridView (scroll_view.dart)
ListView (scroll_view.dart)
CustomScrollView (scroll_view.dart)
_NestedScrollViewCustomScrollView (nested_scroll_view.dart)
SimpleDialog (dialog.dart)
SimpleDialogOption (dialog.dart)
SingleChildScrollView (single_child_scroll_view.dart)
SliverPersistentHeader (sliver_persistent_header.dart)
SliverSafeArea (safe_area.dart)
SnackBar (snack_bar.dart)
Spacer (spacer.dart)
SwitchListTile (switch_list_tile.dart)
Tab (tabs.dart)
TabPageSelector (tabs.dart)
TabPageSelectorIndicator (tabs.dart)
Text (text.dart)
Theme (theme.dart)
Title (title.dart)
VerticalDivider (divider.dart)
Visibility (visibility.dart)
示例：
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter应用title',
// 设置这一属性即可去除右上角Debug标签
debugShowCheckedModeBanner: false,
theme: ThemeData(
//主题色
primarySwatch: Colors.green,
backgroundColor: Colors.deepOrangeAccent,
primaryColor: Colors.amber,
accentColor: Colors.cyanAccent),
home: MyHomePage(),
routes: {
'/home': (BuildContext context) => MyHomePage(),
'/detail': (BuildContext context) => DetailPage()
});
}
}
class MyHomePage extends StatefulWidget {
@override
State createState() {
return _MyHomeState();
}
}
class _MyHomeState extends State {
var _pages = [];
var _tabIndex = 0;
@override
void initState() {
_pages
..add(MyColumn())
..add(MyTabBar())
..add(MyText("333"))
..add(MyText("444"));
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
leading: new Builder(builder: (BuildContext context) {
return GestureDetector(
child: Icon(
Icons.arrow_back,
color: Colors.white,
),
onTap: () {
print("==========onTap");
},
onLongPress: () {
print("=============onLongPress");
},
onDoubleTap: () {
print("=============onDoubleTap");
Scaffold.of(context)
.showSnackBar(new SnackBar(content: Text("onDoubleTap")));
},
);
}),
title: Text('flutter页面Title'),
centerTitle: true,
),
body: _pages[_tabIndex],
// 页面底部的导航栏
bottomNavigationBar: BottomNavigationBar(
type: BottomNavigationBarType.fixed,
iconSize: 24.0,
currentIndex: _tabIndex,
onTap: (int index) {
setState(() {
_tabIndex = index;
});
},
fixedColor: Colors.deepPurple,
items: [
BottomNavigationBarItem(
title: Text("Home"),
icon: Icon(Icons.home),
backgroundColor: Colors.green),
BottomNavigationBarItem(
title: Text("List"),
icon: Icon(Icons.list),
backgroundColor: Colors.deepPurple),
BottomNavigationBarItem(
title: Text("Menu"),
icon: Icon(Icons.menu),
backgroundColor: Colors.deepOrangeAccent),
BottomNavigationBarItem(
title: Text("Other"),
icon: Icon(Icons.devices_other),
backgroundColor: Colors.lightBlue,
),
],
),
drawer: Drawer(
child: Column(
children: [
DrawerItem(1, '列表1'),
DrawerItem(2, '列表2'),
DrawerItem(3, '列表3'),
DrawerItem(4, '列表4'),
DrawerItem(5, '列表5')
],
)),
floatingActionButton: FloatingActionButton(
onPressed: () => Navigator.of(context)
.push(MaterialPageRoute(builder: (context) => DetailPage())),
child: Icon(Icons.navigate_next),
),
);
}
}
class MyTabBar extends StatefulWidget {
@override
State createState() {
return _MyTabBarState();
}
}
class _MyTabBarState extends State
with SingleTickerProviderStateMixin {
// ScrollController _scrollController;
TabController _tabController;
@override
void initState() {
super.initState();
// _scrollController = ScrollController();
_tabController = TabController(length: 6, vsync: this);
}
@override
void dispose() {
_tabController.dispose();
// _scrollController.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return SizedBox(
height: 800,
child: Scaffold(
body: TabBarView(controller: _tabController, children: [
Text("TabBarView1"),
Text("TabBarView2"),
Text("TabBarView3"),
Text("TabBarView4"),
Text("TabBarView5"),
Text("TabBarView6"),
]),
appBar: AppBar(
title: Text("title"),
leading: Icon(Icons.home),
backgroundColor: Colors.amber,
bottom: TabBar(
isScrollable: true,
controller: _tabController,
tabs: [
Tab(
text: "tab1",
),
Tab(
text: "tab2",
),
Tab(
text: "tab3",
),
Tab(
text: "tab4",
),
Tab(
text: "tab5",
),
Tab(
text: "tab6",
),
]),
),
),
);
}
}
class DetailPage extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Center(
child: GestureDetector(
onTap: () {
Navigator.pushNamed(context, '/home');
},
child: Text('详情页，点击跳转首页',
style: TextStyle(
fontSize: 20.0,
color: Colors.white,
decoration: TextDecoration.none))));
}
}
class DrawerItem extends StatelessWidget {
final int id;
final String name;
DrawerItem(this.id, this.name);
@override
Widget build(BuildContext context) {
return Container(
decoration: BoxDecoration(
color: Colors.white,
border:
Border(bottom: BorderSide(width: 0.5, color: Color(0xFFd9d9d9))),
),
height: 52.0,
child: FlatButton(
onPressed: () {},
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: [Text(id.toString()), Text(' - '), Text(name)],
)),
);
}
}
class MyText extends StatelessWidget {
var data = "";
MyText(this.data);
@override
Widget build(BuildContext context) {
return Center(
child: Text(data),
);
}
}
class MyColumn extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Center(
child: GestureDetector(
onTap: () {
Navigator.pushNamed(context, '/detail');
},
child: Text('首页，点击跳转详情页',
style: TextStyle(
fontSize: 20.0,
color: Colors.red,
decoration: TextDecoration.none)))),
Builder(
//如果 build 函数返回一个 Scaffold 对象，则由于 Scaffold 对象是这个 Widget 的子对象，
// 所以使用这个 build 的 BuildContext 参数是不能查找到 ScaffoldState 对象的，
// 这个时候，通过在 Scaffold 中使用一个 Builder 来提供一个新的 BuildConext ：
// Create an inner BuildContext so that the onPressed methods
// can refer to the Scaffold with Scaffold.of().
builder: (BuildContext context) {
return new Center(
child: new RaisedButton(
child: new Text('SHOW A SNACKBAR'),
onPressed: () {
Scaffold.of(context).showSnackBar(new SnackBar(
content: new Text('Hello!'),
));
},
),
);
},
),
],
);
}
}
