Flutter：如何让 TextField 专注于提交？
Flutter: How to Keep TextField Focus on Submit?
我正在使用 https://pub.dev/packages/flutter_tags 作为标签输入。通过按键盘上的提交并清除 TextInput 字段，将标签添加到标签数组。
现在我遇到了提交键盘也关闭的问题。所以你必须为每个标签再次按下字段，这不是事情的意义。有很多关于如何关闭键盘的说明，但是 none 如何让它保持打开状态。
按下提交后，该字段失去焦点，因此键盘关闭。不幸的是，我的想法是在 onSubmitted 上设置新的焦点，但没有成功。不幸的是这里没有任何反应：
TextField(
controller: myController,
focusNode: myFocusNode,
// more code
onSubmitted: (String str) {
myController.clear();
myFocusNode.requestFocus();
}
)
亲切的问候，
雅各布
只要用户需要填写该表格，您就需要将 myFocusNode 传递给 requestFocus()。假设您有一个名为 completed 的布尔条件，您可以执行以下操作：
if (completed) {
focus.unfocus();
} else {
focus.requestFocus(myFocusNode);
}
您可以复制粘贴运行下面的完整代码
以下代码使用官方示例代码并修改Demo2
代码片段
TextField(
controller: myController,
decoration: InputDecoration(
icon: Icon(Icons.person),
labelText: "add tag with focus",
),
focusNode: myFocusNode,
onSubmitted: (val) {
setState(() {
_items.add(val);
});
myController.clear();
myFocusNode.requestFocus();
},
),
工作演示
完整代码
import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_tags/flutter_tags.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Tags Demo',
theme: ThemeData(
primarySwatch: Colors.blueGrey,
),
home: MyHomePage(title: 'Flutter Tags'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage>
with SingleTickerProviderStateMixin {
FocusNode myFocusNode = FocusNode();
TextEditingController myController = TextEditingController();
TabController _tabController;
ScrollController _scrollViewController;
final List<String> _list = [
'0',
'SDK',
'plugin updates',
'Facebook',
'哔了狗了QP又不够了',
'Kirchhoff',
'Italy',
'France',
'Spain',
'美',
'Dart',
'SDK',
'Foo',
'Select',
'lorem ip',
'9',
'Star',
'Flutter Selectable Tags',
'1',
'Hubble',
'2',
'Input flutter tags',
'A B C',
'8',
'Android Studio developer',
'welcome to the jungle',
'Gauss',
'美术',
'互联网',
'炫舞时代',
'篝火营地',
];
bool _symmetry = false;
bool _removeButton = true;
bool _singleItem = false;
bool _startDirection = false;
bool _horizontalScroll = false;
bool _withSuggesttions = false;
int _count = 0;
int _column = 0;
double _fontSize = 14;
String _itemCombine = 'withTextBefore';
String _onPressed = '';
List _icon = [Icons.home, Icons.language, Icons.headset];
@override
void initState() {
super.initState();
_tabController = TabController(length: 2, vsync: this);
_scrollViewController = ScrollController();
_items = _list.toList();
}
List _items;
final GlobalKey<TagsState> _tagStateKey = GlobalKey<TagsState>();
@override
Widget build(BuildContext context) {
//List<Item> lst = _tagStateKey.currentState?.getAllItem; lst.forEach((f) => print(f.title));
return Scaffold(
body: NestedScrollView(
controller: _scrollViewController,
headerSliverBuilder: (BuildContext context, bool boxIsScrolled) {
return <Widget>[
SliverAppBar(
title: Text("flutter tags"),
centerTitle: true,
pinned: true,
expandedHeight: 0,
floating: true,
forceElevated: boxIsScrolled,
bottom: TabBar(
isScrollable: false,
indicatorSize: TabBarIndicatorSize.label,
labelStyle: TextStyle(fontSize: 18.0),
tabs: [
Tab(text: "Demo 1"),
Tab(text: "Demo 2"),
],
controller: _tabController,
),
)
];
},
body: TabBarView(
controller: _tabController,
children: [
CustomScrollView(
slivers: <Widget>[
SliverList(
delegate: SliverChildListDelegate([
Container(
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.grey[300], width: 0.5))),
margin:
EdgeInsets.symmetric(horizontal: 10, vertical: 10),
child: ExpansionTile(
title: Text("Settings"),
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _removeButton,
onChanged: (a) {
setState(() {
_removeButton = !_removeButton;
});
}),
Text('Remove Button')
],
),
onTap: () {
setState(() {
_removeButton = !_removeButton;
});
},
),
Padding(
padding: EdgeInsets.all(5),
),
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _symmetry,
onChanged: (a) {
setState(() {
_symmetry = !_symmetry;
});
}),
Text('Symmetry')
],
),
onTap: () {
setState(() {
_symmetry = !_symmetry;
});
},
),
Padding(
padding: EdgeInsets.all(5),
),
DropdownButton(
hint: _column == 0
? Text("Not set")
: Text(_column.toString()),
items: _buildItems(),
onChanged: (a) {
setState(() {
_column = a;
});
},
),
],
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _horizontalScroll,
onChanged: (a) {
setState(() {
_horizontalScroll =
!_horizontalScroll;
});
}),
Text('Horizontal scroll')
],
),
onTap: () {
setState(() {
_horizontalScroll = !_horizontalScroll;
});
},
),
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _singleItem,
onChanged: (a) {
setState(() {
_singleItem = !_singleItem;
});
}),
Text('Single Item')
],
),
onTap: () {
setState(() {
_singleItem = !_singleItem;
});
},
),
],
),
Column(
children: <Widget>[
Text('Font Size'),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Slider(
value: _fontSize,
min: 6,
max: 30,
onChanged: (a) {
setState(() {
_fontSize = (a.round()).toDouble();
});
},
),
Text(_fontSize.toString()),
Padding(
padding:
EdgeInsets.symmetric(horizontal: 20),
),
Container(
height: 30,
width: 30,
//color: Colors.blueGrey,
child: IconButton(
padding: EdgeInsets.all(0),
//color: Colors.white,
icon: Icon(Icons.add),
onPressed: () {
setState(() {
_count++;
_items.add(_count.toString());
//_items.removeAt(3); _items.removeAt(10);
});
},
),
),
Padding(
padding:
EdgeInsets.symmetric(horizontal: 5),
),
Container(
height: 30,
width: 30,
//color: Colors.grey,
child: IconButton(
padding: EdgeInsets.all(0),
//color: Colors.white,
icon: Icon(Icons.refresh),
onPressed: () {
setState(() {
_items = _list.toList();
});
},
),
),
],
),
],
),
],
),
),
Padding(
padding: EdgeInsets.all(20),
),
_tags1,
Container(
padding: EdgeInsets.all(20),
child: Column(
children: <Widget>[
Divider(
color: Colors.blueGrey,
),
Padding(
padding: EdgeInsets.symmetric(vertical: 20),
child: Text(_onPressed),
),
],
)),
])),
],
),
CustomScrollView(
slivers: <Widget>[
SliverList(
delegate: SliverChildListDelegate([
Container(
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.grey[300], width: 0.5))),
margin:
EdgeInsets.symmetric(horizontal: 10, vertical: 10),
child: ExpansionTile(
title: Text("Settings"),
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _withSuggesttions,
onChanged: (a) {
setState(() {
_withSuggesttions =
!_withSuggesttions;
});
}),
Text('Suggestions')
],
),
onTap: () {
setState(() {
_withSuggesttions = !_withSuggesttions;
});
},
),
Padding(
padding: EdgeInsets.all(20),
),
DropdownButton(
hint: Text(_itemCombine),
items: _buildItems2(),
onChanged: (val) {
setState(() {
_itemCombine = val;
});
},
),
],
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _horizontalScroll,
onChanged: (a) {
setState(() {
_horizontalScroll =
!_horizontalScroll;
});
}),
Text('Horizontal scroll')
],
),
onTap: () {
setState(() {
_horizontalScroll = !_horizontalScroll;
});
},
),
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _startDirection,
onChanged: (a) {
setState(() {
_startDirection = !_startDirection;
});
}),
Text('Start Direction')
],
),
onTap: () {
setState(() {
_startDirection = !_startDirection;
});
},
),
],
),
Column(
children: <Widget>[
Text('Font Size'),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Slider(
value: _fontSize,
min: 6,
max: 30,
onChanged: (a) {
setState(() {
_fontSize = (a.round()).toDouble();
});
},
),
Text(_fontSize.toString()),
],
),
],
),
],
),
),
Padding(
padding: EdgeInsets.all(20),
),
_tags2,
Container(
padding: EdgeInsets.all(20),
child: Column(
children: <Widget>[
Divider(
color: Colors.blueGrey,
),
Padding(
padding: EdgeInsets.symmetric(vertical: 20),
child: Text(_onPressed),
),
],
)),
TextField(
controller: myController,
decoration: InputDecoration(
icon: Icon(Icons.person),
labelText: "add tag with focus",
),
focusNode: myFocusNode,
onSubmitted: (val) {
setState(() {
_items.add(val);
});
myController.clear();
myFocusNode.requestFocus();
},
),
])),
],
),
],
)),
);
}
Widget get _tags1 {
return Tags(
key: _tagStateKey,
symmetry: _symmetry,
columns: _column,
horizontalScroll: _horizontalScroll,
//verticalDirection: VerticalDirection.up, textDirection: TextDirection.rtl,
heightHorizontalScroll: 60 * (_fontSize / 14),
itemCount: _items.length,
itemBuilder: (index) {
final item = _items[index];
return ItemTags(
key: Key(index.toString()),
index: index,
title: item,
pressEnabled: true,
activeColor: Colors.blueGrey[600],
singleItem: _singleItem,
splashColor: Colors.green,
combine: ItemTagsCombine.withTextBefore,
image: index > 0 && index < 5
? ItemTagsImage(
//image: AssetImage("img/p$index.jpg"),
child: Image.network(
"http://www.clipartpanda.com/clipart_images/user-66327738/download",
width: 16 * _fontSize / 14,
height: 16 * _fontSize / 14,
))
: (1 == 1
? ItemTagsImage(
image: NetworkImage(
"https://d32ogoqmya1dw8.cloudfront.net/images/serc/empty_user_icon_256.v2.png"),
)
: null),
icon: (item == '0' || item == '1' || item == '2')
? ItemTagsIcon(
icon: _icon[int.parse(item)],
)
: null,
removeButton: _removeButton
? ItemTagsRemoveButton(
onRemoved: () {
setState(() {
_items.removeAt(index);
});
return true;
},
)
: null,
textScaleFactor:
utf8.encode(item.substring(0, 1)).length > 2 ? 0.8 : 1,
textStyle: TextStyle(
fontSize: _fontSize,
),
onPressed: (item) => print(item),
);
},
);
}
// Position for popup menu
Offset _tapPosition;
Widget get _tags2 {
//popup Menu
final RenderBox overlay = Overlay.of(context).context?.findRenderObject();
ItemTagsCombine combine = ItemTagsCombine.onlyText;
switch (_itemCombine) {
case 'onlyText':
combine = ItemTagsCombine.onlyText;
break;
case 'onlyIcon':
combine = ItemTagsCombine.onlyIcon;
break;
case 'onlyIcon':
combine = ItemTagsCombine.onlyIcon;
break;
case 'onlyImage':
combine = ItemTagsCombine.onlyImage;
break;
case 'imageOrIconOrText':
combine = ItemTagsCombine.imageOrIconOrText;
break;
case 'withTextAfter':
combine = ItemTagsCombine.withTextAfter;
break;
case 'withTextBefore':
combine = ItemTagsCombine.withTextBefore;
break;
}
return Tags(
key: Key("2"),
symmetry: _symmetry,
columns: _column,
horizontalScroll: _horizontalScroll,
verticalDirection:
_startDirection ? VerticalDirection.up : VerticalDirection.down,
textDirection: _startDirection ? TextDirection.rtl : TextDirection.ltr,
heightHorizontalScroll: 60 * (_fontSize / 14),
textField: TagsTextField(
autofocus: false,
textStyle: TextStyle(
fontSize: _fontSize,
//height: 1
),
enabled: true,
constraintSuggestion: true,
suggestions: _withSuggesttions
? [
"One",
"two",
"android",
"Dart",
"flutter",
"test",
"tests",
"androids",
"androidsaaa",
"Test",
"suggest",
"suggestions",
"互联网",
"last",
"lest",
"炫舞时代"
]
: null,
onSubmitted: (String str) {
print("onSubmitted $str");
setState(() {
_items.add(str);
});
},
),
itemCount: _items.length,
itemBuilder: (index) {
final item = _items[index];
return GestureDetector(
child: ItemTags(
key: Key(index.toString()),
index: index,
title: item,
pressEnabled: false,
activeColor: Colors.green[400],
combine: combine,
image: index > 0 && index < 5
? ItemTagsImage(image: AssetImage("img/p$index.jpg"))
: (1 == 1
? ItemTagsImage(
image: NetworkImage(
"https://image.flaticon.com/icons/png/512/44/44948.png"))
: null),
icon: (item == '0' || item == '1' || item == '2')
? ItemTagsIcon(
icon: _icon[int.parse(item)],
)
: null,
removeButton: ItemTagsRemoveButton(
backgroundColor: Colors.green[900],
onRemoved: () {
setState(() {
_items.removeAt(index);
});
return true;
},
),
textScaleFactor:
utf8.encode(item.substring(0, 1)).length > 2 ? 0.8 : 1,
textStyle: TextStyle(
fontSize: _fontSize,
),
),
onTapDown: (details) => _tapPosition = details.globalPosition,
onLongPress: () {
showMenu(
//semanticLabel: item,
items: <PopupMenuEntry>[
PopupMenuItem(
child: Text(item, style: TextStyle(color: Colors.blueGrey)),
enabled: false,
),
PopupMenuDivider(),
PopupMenuItem(
value: 1,
child: Row(
children: <Widget>[
Icon(Icons.content_copy),
Text("Copy text"),
],
),
),
],
context: context,
position: RelativeRect.fromRect(
_tapPosition & Size(40, 40),
Offset.zero &
overlay
.size) // & RelativeRect.fromLTRB(65.0, 40.0, 0.0, 0.0),
)
.then((value) {
if (value == 1) Clipboard.setData(ClipboardData(text: item));
});
},
);
},
);
}
List<DropdownMenuItem> _buildItems() {
List<DropdownMenuItem> list = [];
int count = 19;
list.add(
DropdownMenuItem(
child: Text("Not set"),
value: 0,
),
);
for (int i = 1; i < count; i++)
list.add(
DropdownMenuItem(
child: Text(i.toString()),
value: i,
),
);
return list;
}
List<DropdownMenuItem> _buildItems2() {
List<DropdownMenuItem> list = [];
list.add(DropdownMenuItem(
child: Text("onlyText"),
value: 'onlyText',
));
list.add(DropdownMenuItem(
child: Text("onlyIcon"),
value: 'onlyIcon',
));
list.add(DropdownMenuItem(
child: Text("onlyImage"),
value: 'onlyImage',
));
list.add(DropdownMenuItem(
child: Text("imageOrIconOrText"),
value: 'imageOrIconOrText',
));
list.add(DropdownMenuItem(
child: Text("withTextBefore"),
value: 'withTextBefore',
));
list.add(DropdownMenuItem(
child: Text("withTextAfter"),
value: 'withTextAfter',
));
return list;
}
}
我正在使用 https://pub.dev/packages/flutter_tags 作为标签输入。通过按键盘上的提交并清除 TextInput 字段，将标签添加到标签数组。
现在我遇到了提交键盘也关闭的问题。所以你必须为每个标签再次按下字段，这不是事情的意义。有很多关于如何关闭键盘的说明，但是 none 如何让它保持打开状态。
按下提交后，该字段失去焦点，因此键盘关闭。不幸的是，我的想法是在 onSubmitted 上设置新的焦点，但没有成功。不幸的是这里没有任何反应：
TextField(
controller: myController,
focusNode: myFocusNode,
// more code
onSubmitted: (String str) {
myController.clear();
myFocusNode.requestFocus();
}
)
亲切的问候，
雅各布
只要用户需要填写该表格，您就需要将 myFocusNode 传递给 requestFocus()。假设您有一个名为 completed 的布尔条件，您可以执行以下操作：
if (completed) {
focus.unfocus();
} else {
focus.requestFocus(myFocusNode);
}
您可以复制粘贴运行下面的完整代码
以下代码使用官方示例代码并修改Demo2
代码片段
TextField(
controller: myController,
decoration: InputDecoration(
icon: Icon(Icons.person),
labelText: "add tag with focus",
),
focusNode: myFocusNode,
onSubmitted: (val) {
setState(() {
_items.add(val);
});
myController.clear();
myFocusNode.requestFocus();
},
),
工作演示
完整代码
import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_tags/flutter_tags.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Tags Demo',
theme: ThemeData(
primarySwatch: Colors.blueGrey,
),
home: MyHomePage(title: 'Flutter Tags'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage>
with SingleTickerProviderStateMixin {
FocusNode myFocusNode = FocusNode();
TextEditingController myController = TextEditingController();
TabController _tabController;
ScrollController _scrollViewController;
final List<String> _list = [
'0',
'SDK',
'plugin updates',
'Facebook',
'哔了狗了QP又不够了',
'Kirchhoff',
'Italy',
'France',
'Spain',
'美',
'Dart',
'SDK',
'Foo',
'Select',
'lorem ip',
'9',
'Star',
'Flutter Selectable Tags',
'1',
'Hubble',
'2',
'Input flutter tags',
'A B C',
'8',
'Android Studio developer',
'welcome to the jungle',
'Gauss',
'美术',
'互联网',
'炫舞时代',
'篝火营地',
];
bool _symmetry = false;
bool _removeButton = true;
bool _singleItem = false;
bool _startDirection = false;
bool _horizontalScroll = false;
bool _withSuggesttions = false;
int _count = 0;
int _column = 0;
double _fontSize = 14;
String _itemCombine = 'withTextBefore';
String _onPressed = '';
List _icon = [Icons.home, Icons.language, Icons.headset];
@override
void initState() {
super.initState();
_tabController = TabController(length: 2, vsync: this);
_scrollViewController = ScrollController();
_items = _list.toList();
}
List _items;
final GlobalKey<TagsState> _tagStateKey = GlobalKey<TagsState>();
@override
Widget build(BuildContext context) {
//List<Item> lst = _tagStateKey.currentState?.getAllItem; lst.forEach((f) => print(f.title));
return Scaffold(
body: NestedScrollView(
controller: _scrollViewController,
headerSliverBuilder: (BuildContext context, bool boxIsScrolled) {
return <Widget>[
SliverAppBar(
title: Text("flutter tags"),
centerTitle: true,
pinned: true,
expandedHeight: 0,
floating: true,
forceElevated: boxIsScrolled,
bottom: TabBar(
isScrollable: false,
indicatorSize: TabBarIndicatorSize.label,
labelStyle: TextStyle(fontSize: 18.0),
tabs: [
Tab(text: "Demo 1"),
Tab(text: "Demo 2"),
],
controller: _tabController,
),
)
];
},
body: TabBarView(
controller: _tabController,
children: [
CustomScrollView(
slivers: <Widget>[
SliverList(
delegate: SliverChildListDelegate([
Container(
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.grey[300], width: 0.5))),
margin:
EdgeInsets.symmetric(horizontal: 10, vertical: 10),
child: ExpansionTile(
title: Text("Settings"),
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _removeButton,
onChanged: (a) {
setState(() {
_removeButton = !_removeButton;
});
}),
Text('Remove Button')
],
),
onTap: () {
setState(() {
_removeButton = !_removeButton;
});
},
),
Padding(
padding: EdgeInsets.all(5),
),
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _symmetry,
onChanged: (a) {
setState(() {
_symmetry = !_symmetry;
});
}),
Text('Symmetry')
],
),
onTap: () {
setState(() {
_symmetry = !_symmetry;
});
},
),
Padding(
padding: EdgeInsets.all(5),
),
DropdownButton(
hint: _column == 0
? Text("Not set")
: Text(_column.toString()),
items: _buildItems(),
onChanged: (a) {
setState(() {
_column = a;
});
},
),
],
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _horizontalScroll,
onChanged: (a) {
setState(() {
_horizontalScroll =
!_horizontalScroll;
});
}),
Text('Horizontal scroll')
],
),
onTap: () {
setState(() {
_horizontalScroll = !_horizontalScroll;
});
},
),
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _singleItem,
onChanged: (a) {
setState(() {
_singleItem = !_singleItem;
});
}),
Text('Single Item')
],
),
onTap: () {
setState(() {
_singleItem = !_singleItem;
});
},
),
],
),
Column(
children: <Widget>[
Text('Font Size'),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Slider(
value: _fontSize,
min: 6,
max: 30,
onChanged: (a) {
setState(() {
_fontSize = (a.round()).toDouble();
});
},
),
Text(_fontSize.toString()),
Padding(
padding:
EdgeInsets.symmetric(horizontal: 20),
),
Container(
height: 30,
width: 30,
//color: Colors.blueGrey,
child: IconButton(
padding: EdgeInsets.all(0),
//color: Colors.white,
icon: Icon(Icons.add),
onPressed: () {
setState(() {
_count++;
_items.add(_count.toString());
//_items.removeAt(3); _items.removeAt(10);
});
},
),
),
Padding(
padding:
EdgeInsets.symmetric(horizontal: 5),
),
Container(
height: 30,
width: 30,
//color: Colors.grey,
child: IconButton(
padding: EdgeInsets.all(0),
//color: Colors.white,
icon: Icon(Icons.refresh),
onPressed: () {
setState(() {
_items = _list.toList();
});
},
),
),
],
),
],
),
],
),
),
Padding(
padding: EdgeInsets.all(20),
),
_tags1,
Container(
padding: EdgeInsets.all(20),
child: Column(
children: <Widget>[
Divider(
color: Colors.blueGrey,
),
Padding(
padding: EdgeInsets.symmetric(vertical: 20),
child: Text(_onPressed),
),
],
)),
])),
],
),
CustomScrollView(
slivers: <Widget>[
SliverList(
delegate: SliverChildListDelegate([
Container(
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.grey[300], width: 0.5))),
margin:
EdgeInsets.symmetric(horizontal: 10, vertical: 10),
child: ExpansionTile(
title: Text("Settings"),
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _withSuggesttions,
onChanged: (a) {
setState(() {
_withSuggesttions =
!_withSuggesttions;
});
}),
Text('Suggestions')
],
),
onTap: () {
setState(() {
_withSuggesttions = !_withSuggesttions;
});
},
),
Padding(
padding: EdgeInsets.all(20),
),
DropdownButton(
hint: Text(_itemCombine),
items: _buildItems2(),
onChanged: (val) {
setState(() {
_itemCombine = val;
});
},
),
],
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _horizontalScroll,
onChanged: (a) {
setState(() {
_horizontalScroll =
!_horizontalScroll;
});
}),
Text('Horizontal scroll')
],
),
onTap: () {
setState(() {
_horizontalScroll = !_horizontalScroll;
});
},
),
GestureDetector(
child: Row(
children: <Widget>[
Checkbox(
value: _startDirection,
onChanged: (a) {
setState(() {
_startDirection = !_startDirection;
});
}),
Text('Start Direction')
],
),
onTap: () {
setState(() {
_startDirection = !_startDirection;
});
},
),
],
),
Column(
children: <Widget>[
Text('Font Size'),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Slider(
value: _fontSize,
min: 6,
max: 30,
onChanged: (a) {
setState(() {
_fontSize = (a.round()).toDouble();
});
},
),
Text(_fontSize.toString()),
],
),
],
),
],
),
),
Padding(
padding: EdgeInsets.all(20),
),
_tags2,
Container(
padding: EdgeInsets.all(20),
child: Column(
children: <Widget>[
Divider(
color: Colors.blueGrey,
),
Padding(
padding: EdgeInsets.symmetric(vertical: 20),
child: Text(_onPressed),
),
],
)),
TextField(
controller: myController,
decoration: InputDecoration(
icon: Icon(Icons.person),
labelText: "add tag with focus",
),
focusNode: myFocusNode,
onSubmitted: (val) {
setState(() {
_items.add(val);
});
myController.clear();
myFocusNode.requestFocus();
},
),
])),
],
),
],
)),
);
}
Widget get _tags1 {
return Tags(
key: _tagStateKey,
symmetry: _symmetry,
columns: _column,
horizontalScroll: _horizontalScroll,
//verticalDirection: VerticalDirection.up, textDirection: TextDirection.rtl,
heightHorizontalScroll: 60 * (_fontSize / 14),
itemCount: _items.length,
itemBuilder: (index) {
final item = _items[index];
return ItemTags(
key: Key(index.toString()),
index: index,
title: item,
pressEnabled: true,
activeColor: Colors.blueGrey[600],
singleItem: _singleItem,
splashColor: Colors.green,
combine: ItemTagsCombine.withTextBefore,
image: index > 0 && index < 5
? ItemTagsImage(
//image: AssetImage("img/p$index.jpg"),
child: Image.network(
"http://www.clipartpanda.com/clipart_images/user-66327738/download",
width: 16 * _fontSize / 14,
height: 16 * _fontSize / 14,
))
: (1 == 1
? ItemTagsImage(
image: NetworkImage(
"https://d32ogoqmya1dw8.cloudfront.net/images/serc/empty_user_icon_256.v2.png"),
)
: null),
icon: (item == '0' || item == '1' || item == '2')
? ItemTagsIcon(
icon: _icon[int.parse(item)],
)
: null,
removeButton: _removeButton
? ItemTagsRemoveButton(
onRemoved: () {
setState(() {
_items.removeAt(index);
});
return true;
},
)
: null,
textScaleFactor:
utf8.encode(item.substring(0, 1)).length > 2 ? 0.8 : 1,
textStyle: TextStyle(
fontSize: _fontSize,
),
onPressed: (item) => print(item),
);
},
);
}
// Position for popup menu
Offset _tapPosition;
Widget get _tags2 {
//popup Menu
final RenderBox overlay = Overlay.of(context).context?.findRenderObject();
ItemTagsCombine combine = ItemTagsCombine.onlyText;
switch (_itemCombine) {
case 'onlyText':
combine = ItemTagsCombine.onlyText;
break;
case 'onlyIcon':
combine = ItemTagsCombine.onlyIcon;
break;
case 'onlyIcon':
combine = ItemTagsCombine.onlyIcon;
break;
case 'onlyImage':
combine = ItemTagsCombine.onlyImage;
break;
case 'imageOrIconOrText':
combine = ItemTagsCombine.imageOrIconOrText;
break;
case 'withTextAfter':
combine = ItemTagsCombine.withTextAfter;
break;
case 'withTextBefore':
combine = ItemTagsCombine.withTextBefore;
break;
}
return Tags(
key: Key("2"),
symmetry: _symmetry,
columns: _column,
horizontalScroll: _horizontalScroll,
verticalDirection:
_startDirection ? VerticalDirection.up : VerticalDirection.down,
textDirection: _startDirection ? TextDirection.rtl : TextDirection.ltr,
heightHorizontalScroll: 60 * (_fontSize / 14),
textField: TagsTextField(
autofocus: false,
textStyle: TextStyle(
fontSize: _fontSize,
//height: 1
),
enabled: true,
constraintSuggestion: true,
suggestions: _withSuggesttions
? [
"One",
"two",
"android",
"Dart",
"flutter",
"test",
"tests",
"androids",
"androidsaaa",
"Test",
"suggest",
"suggestions",
"互联网",
"last",
"lest",
"炫舞时代"
]
: null,
onSubmitted: (String str) {
print("onSubmitted $str");
setState(() {
_items.add(str);
});
},
),
itemCount: _items.length,
itemBuilder: (index) {
final item = _items[index];
return GestureDetector(
child: ItemTags(
key: Key(index.toString()),
index: index,
title: item,
pressEnabled: false,
activeColor: Colors.green[400],
combine: combine,
image: index > 0 && index < 5
? ItemTagsImage(image: AssetImage("img/p$index.jpg"))
: (1 == 1
? ItemTagsImage(
image: NetworkImage(
"https://image.flaticon.com/icons/png/512/44/44948.png"))
: null),
icon: (item == '0' || item == '1' || item == '2')
? ItemTagsIcon(
icon: _icon[int.parse(item)],
)
: null,
removeButton: ItemTagsRemoveButton(
backgroundColor: Colors.green[900],
onRemoved: () {
setState(() {
_items.removeAt(index);
});
return true;
},
),
textScaleFactor:
utf8.encode(item.substring(0, 1)).length > 2 ? 0.8 : 1,
textStyle: TextStyle(
fontSize: _fontSize,
),
),
onTapDown: (details) => _tapPosition = details.globalPosition,
onLongPress: () {
showMenu(
//semanticLabel: item,
items: <PopupMenuEntry>[
PopupMenuItem(
child: Text(item, style: TextStyle(color: Colors.blueGrey)),
enabled: false,
),
PopupMenuDivider(),
PopupMenuItem(
value: 1,
child: Row(
children: <Widget>[
Icon(Icons.content_copy),
Text("Copy text"),
],
),
),
],
context: context,
position: RelativeRect.fromRect(
_tapPosition & Size(40, 40),
Offset.zero &
overlay
.size) // & RelativeRect.fromLTRB(65.0, 40.0, 0.0, 0.0),
)
.then((value) {
if (value == 1) Clipboard.setData(ClipboardData(text: item));
});
},
);
},
);
}
List<DropdownMenuItem> _buildItems() {
List<DropdownMenuItem> list = [];
int count = 19;
list.add(
DropdownMenuItem(
child: Text("Not set"),
value: 0,
),
);
for (int i = 1; i < count; i++)
list.add(
DropdownMenuItem(
child: Text(i.toString()),
value: i,
),
);
return list;
}
List<DropdownMenuItem> _buildItems2() {
List<DropdownMenuItem> list = [];
list.add(DropdownMenuItem(
child: Text("onlyText"),
value: 'onlyText',
));
list.add(DropdownMenuItem(
child: Text("onlyIcon"),
value: 'onlyIcon',
));
list.add(DropdownMenuItem(
child: Text("onlyImage"),
value: 'onlyImage',
));
list.add(DropdownMenuItem(
child: Text("imageOrIconOrText"),
value: 'imageOrIconOrText',
));
list.add(DropdownMenuItem(
child: Text("withTextBefore"),
value: 'withTextBefore',
));
list.add(DropdownMenuItem(
child: Text("withTextAfter"),
value: 'withTextAfter',
));
return list;
}
}