Widget

1import 'package:flutter/material.dart';
2
3void main() {
4  runApp(MyApp());
5}
6
7class MyApp extends StatelessWidget {
8  @override
9  Widget build(BuildContext context) {
10    return MaterialApp(
11      theme: ThemeData(primaryColor: Colors.purple), // This "primaryColor" option does not working.
12      home: Scaffold(
13        appBar: AppBar(
14          title: const Text('Test App'),
15        ),
16        body: Container(),
17      ),
18    );
19  }
20}
21
22

1import 'package:flutter/material.dart';
2
3void main() {
4  runApp(MyApp());
5}
6
7class MyApp extends StatelessWidget {
8  @override
9  Widget build(BuildContext context) {
10    return MaterialApp(
11      theme: ThemeData(primaryColor: Colors.purple), // This "primaryColor" option does not working.
12      home: Scaffold(
13        appBar: AppBar(
14          title: const Text('Test App'),
15        ),
16        body: Container(),
17      ),
18    );
19  }
20}
21
22Flutter 2.5.1 • channel stable • https://github.com/flutter/flutter.git
23Framework • revision ffb2ecea52 (5 days ago) • 2021-09-17 15:26:33 -0400
24Engine • revision b3af521a05
25Tools • Dart 2.14.2
26

1
2          return SizedBox(
3            height: 400,
4            child: ListView.builder(
5                physics: ClampingScrollPhysics(),
6                scrollDirection: Axis.horizontal,
7                // ignore: unnecessary_null_comparison
8                itemCount: items == null ? 0 : items.length,
9                itemBuilder: (context, index) {
10                  return GestureDetector(
11                      onTap: () {
12                        LoginForm();
13                      },
14                      child: Container(
15                        margin:
16                            EdgeInsets.symmetric(horizontal: 20, vertical: 6),
17                        child: SizedBox(
18                          width: 400,
19                          height: 50,
20                          child: Stack(
21                            fit: StackFit.expand,
22                            children: <Widget>[
23                              Container(
24                                decoration: BoxDecoration(
25                                    borderRadius:
26                                        BorderRadius.all(Radius.circular(20.0)),
27                                    boxShadow: [
28                                      BoxShadow(
29                                          color: fromCssColor(
30                                              items[index].color.toString()),
31                                          // color: Colors.black38,
32                                          offset: Offset(2.0, 2.0),
33                                          blurRadius: 5.0,
34                                          spreadRadius: 1.0)
35                                    ]),
36                              ),
37                              ClipRRect(
38                                borderRadius:
39                                    BorderRadius.all(Radius.circular(20.0)),
40                                child: Image.asset(
41                                  items[index].image.toString(),
42                                  fit: BoxFit.cover,
43                                ),
44                              ),
45                              Container(
46                                decoration: BoxDecoration(
47                                    borderRadius:
48                                        BorderRadius.all(Radius.circular(20.0)),
49                                    gradient: LinearGradient(
50                                        begin: Alignment.topCenter,
51                                        end: Alignment.bottomCenter,
52                                        colors: [
53                                          Colors.transparent,
54                                          Colors.black45
55                                        ]))
56                                    ),
57                                  ],
58                                ),
59                              ),
60                              
61

1import 'package:flutter/material.dart';
2import 'package:phototest/photo_view_page.dart';
3
4
5class MyHomePage extends StatelessWidget {
6  const MyHomePage({Key? key}) : super(key: key);
7
8  @override
9  Widget build(BuildContext context) {
10    return TextButton(
11      child: const Text("to PhotoView"),
12      onPressed: () => _toPhotoView(context),
13    );
14  }
15
16  void _toPhotoView(BuildContext context) {
17    Navigator.of(context).push(
18      MaterialPageRoute<dynamic>(
19        builder: (BuildContext context) => const PhotoViewPage(),
20      ),
21    );
22  }
23}
24

1import 'package:flutter/material.dart';
2import 'package:phototest/photo_view_page.dart';
3
4
5class MyHomePage extends StatelessWidget {
6  const MyHomePage({Key? key}) : super(key: key);
7
8  @override
9  Widget build(BuildContext context) {
10    return TextButton(
11      child: const Text("to PhotoView"),
12      onPressed: () => _toPhotoView(context),
13    );
14  }
15
16  void _toPhotoView(BuildContext context) {
17    Navigator.of(context).push(
18      MaterialPageRoute<dynamic>(
19        builder: (BuildContext context) => const PhotoViewPage(),
20      ),
21    );
22  }
23}
24import 'package:flutter/material.dart';
25import 'package:photo_view/photo_view.dart';
26
27class PhotoViewPage extends StatelessWidget {
28  const PhotoViewPage({Key? key}) : super(key: key);
29
30  @override
31  Widget build(BuildContext context) {
32    return PhotoView(imageProvider: AssetImage("assets/image.png"));
33  }
34}
35

1../../AppData/Local/Pub/Cache/hosted/pub.dartlang.org/flutter_math_fork-0.3.3+1/lib/src/widgets/selectable.dart:407:7: Error: The non-abstract class 'InternalSelectableMathState' is missing implementations for these members:
2 - TextSelectionDelegate.copySelection
3 - TextSelectionDelegate.cutSelection
4 - TextSelectionDelegate.pasteText
5 - TextSelectionDelegate.selectAll
6Try to either
7 - provide an implementation,
8 - inherit an implementation from a superclass or mixin,
9 - mark the class as abstract, or
10 - provide a 'noSuchMethod' implementation.
11
12class InternalSelectableMathState extends State<InternalSelectableMath>
13      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
14/C:/desarrollo/flutter/packages/flutter/lib/src/services/text_input.dart:985:8: Context: 'TextSelectionDelegate.copySelection' is defined here.
15  void copySelection(SelectionChangedCause cause);
16       ^^^^^^^^^^^^^
17/C:/desarrollo/flutter/packages/flutter/lib/src/services/text_input.dart:965:8: Context: 'TextSelectionDelegate.cutSelection' is defined here.
18  void cutSelection(SelectionChangedCause cause);
19       ^^^^^^^^^^^^
20/C:/desarrollo/flutter/packages/flutter/lib/src/services/text_input.dart:973:16: Context: 'TextSelectionDelegate.pasteText' is defined here.
21  Future<void> pasteText(SelectionChangedCause cause);
22               ^^^^^^^^^
23/C:/desarrollo/flutter/packages/flutter/lib/src/services/text_input.dart:979:8: Context: 'TextSelectionDelegate.selectAll' is defined here.
24  void selectAll(SelectionChangedCause cause);
25       ^^^^^^^^^
26
27
28FAILURE: Build failed with an exception.
29
30* Where:
31Script 'C:\desarrollo\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1070
32
33* What went wrong:
34Execution failed for task ':app:compileFlutterBuildDebug'.
35> Process 'command 'C:\desarrollo\flutter\bin\flutter.bat'' finished with non-zero exit value 1
36
37* Try:
38Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
39
40* Get more help at https://help.gradle.org
41
42BUILD FAILED in 8m 5s
43Exception: Gradle task assembleDebug failed with exit code 1
44

1../../AppData/Local/Pub/Cache/hosted/pub.dartlang.org/flutter_math_fork-0.3.3+1/lib/src/widgets/selectable.dart:407:7: Error: The non-abstract class 'InternalSelectableMathState' is missing implementations for these members:
2 - TextSelectionDelegate.copySelection
3 - TextSelectionDelegate.cutSelection
4 - TextSelectionDelegate.pasteText
5 - TextSelectionDelegate.selectAll
6Try to either
7 - provide an implementation,
8 - inherit an implementation from a superclass or mixin,
9 - mark the class as abstract, or
10 - provide a 'noSuchMethod' implementation.
11
12class InternalSelectableMathState extends State<InternalSelectableMath>
13      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
14/C:/desarrollo/flutter/packages/flutter/lib/src/services/text_input.dart:985:8: Context: 'TextSelectionDelegate.copySelection' is defined here.
15  void copySelection(SelectionChangedCause cause);
16       ^^^^^^^^^^^^^
17/C:/desarrollo/flutter/packages/flutter/lib/src/services/text_input.dart:965:8: Context: 'TextSelectionDelegate.cutSelection' is defined here.
18  void cutSelection(SelectionChangedCause cause);
19       ^^^^^^^^^^^^
20/C:/desarrollo/flutter/packages/flutter/lib/src/services/text_input.dart:973:16: Context: 'TextSelectionDelegate.pasteText' is defined here.
21  Future<void> pasteText(SelectionChangedCause cause);
22               ^^^^^^^^^
23/C:/desarrollo/flutter/packages/flutter/lib/src/services/text_input.dart:979:8: Context: 'TextSelectionDelegate.selectAll' is defined here.
24  void selectAll(SelectionChangedCause cause);
25       ^^^^^^^^^
26
27
28FAILURE: Build failed with an exception.
29
30* Where:
31Script 'C:\desarrollo\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1070
32
33* What went wrong:
34Execution failed for task ':app:compileFlutterBuildDebug'.
35> Process 'command 'C:\desarrollo\flutter\bin\flutter.bat'' finished with non-zero exit value 1
36
37* Try:
38Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
39
40* Get more help at https://help.gradle.org
41
42BUILD FAILED in 8m 5s
43Exception: Gradle task assembleDebug failed with exit code 1
44Doctor summary (to see all details, run flutter doctor -v):
45[√] Flutter (Channel stable, 2.8.0, on Microsoft Windows [Versión 10.0.19041.1348], locale es-ES)
46[√] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
47[√] Chrome - develop for the web
48[√] Android Studio (version 2020.3)
49[√] VS Code (version 1.62.3)
50[√] Connected device (3 available)
51
52• No issues found!
53

1    Surface(
2        modifier = Modifier
3            .clickable(
4                enabled = enabled,
5                interactionSource = interactionSource,
6                indication = rememberRipple(),
7                role = Role.Checkbox,
8                onClick = { onCheckedChange(!checked) }
9            )
10            .then(modifier),
11    ) {
12        Row {
13            Checkbox(checked = checked, onCheckedChange = {}, colors = colors)
14            Text(text = text ?: "")
15        }
16    }
17

1    Surface(
2        modifier = Modifier
3            .clickable(
4                enabled = enabled,
5                interactionSource = interactionSource,
6                indication = rememberRipple(),
7                role = Role.Checkbox,
8                onClick = { onCheckedChange(!checked) }
9            )
10            .then(modifier),
11    ) {
12        Row {
13            Checkbox(checked = checked, onCheckedChange = {}, colors = colors)
14            Text(text = text ?: "")
15        }
16    }
17org.jetbrains.kotlin.backend.common.BackendException: Backend Internal error: Exception during IR lowering
18File being compiled: /home/rene/AndroidStudioProjects/pass13/app/src/main/java/com/aresid/simplepasswordgeneratorapp/ui/widgets/Checkbox.kt
19

1    Surface(
2        modifier = Modifier
3            .clickable(
4                enabled = enabled,
5                interactionSource = interactionSource,
6                indication = rememberRipple(),
7                role = Role.Checkbox,
8                onClick = { onCheckedChange(!checked) }
9            )
10            .then(modifier),
11    ) {
12        Row {
13            Checkbox(checked = checked, onCheckedChange = {}, colors = colors)
14            Text(text = text ?: "")
15        }
16    }
17org.jetbrains.kotlin.backend.common.BackendException: Backend Internal error: Exception during IR lowering
18File being compiled: /home/rene/AndroidStudioProjects/pass13/app/src/main/java/com/aresid/simplepasswordgeneratorapp/ui/widgets/Checkbox.kt
19    ext.versions = [
20            'compileSdk': 31,
21            'targetSdk' : 30,
22            'minSdk'    : 26,
23            'kotlin'    : '1.5.30',
24            'navigation': '2.3.5',
25            'compose'   : '1.0.2'
26    ]
27

1import 'package:flutter/material.dart';
2
3void main() {
4  runApp(const MyApp());
5}
6
7class MyApp extends StatelessWidget {
8  const MyApp({Key? key}) : super(key: key);
9  @override
10  Widget build(BuildContext context) {
11    return MaterialApp(
12      title: 'Flutter Demo',
13      theme: ThemeData(
14        primarySwatch: Colors.blue,
15      ),
16      home: SingleChildScrollView(
17        child: Column(
18          children: List<Widget>.generate(50, (i) => Text(i.toString())).toList(),
19        ),
20      ),
21    );
22  }
23}
24

1import 'package:flutter/material.dart';
2
3void main() {
4  runApp(const MyApp());
5}
6
7class MyApp extends StatelessWidget {
8  const MyApp({Key? key}) : super(key: key);
9  @override
10  Widget build(BuildContext context) {
11    return MaterialApp(
12      title: 'Flutter Demo',
13      theme: ThemeData(
14        primarySwatch: Colors.blue,
15      ),
16      home: SingleChildScrollView(
17        child: Column(
18          children: List<Widget>.generate(50, (i) => Text(i.toString())).toList(),
19        ),
20      ),
21    );
22  }
23}
24flutter doctor -v
25[✓] Flutter (Channel master, 2.6.0-6.0.pre.6, on Ubuntu 20.04.3 LTS 5.11.0-34-generic, locale en_US.UTF-8)
26    • Flutter version 2.6.0-6.0.pre.6 at /home/XXX
27    • Upstream repository https://github.com/flutter/flutter.git
28    • Framework revision 0c5431d99c (12 days ago), 2021-09-05 22:31:02 -0400
29    • Engine revision b9c633900e
30    • Dart version 2.15.0 (build 2.15.0-82.0.dev)
31
32[✓] Chrome - develop for the web
33    • Chrome at google-chrome
34
35[✓] Connected device (2 available)
36    • Linux (desktop) • linux  • linux-x64      • Ubuntu 20.04.3 LTS 5.11.0-34-generic
37    • Chrome (web)    • chrome • web-javascript • Google Chrome 93.0.4577.82
38

1Column(
2        children: [
3          Expanded(
4            child: Padding(
5              padding: const EdgeInsets.all(8.0),
6              child: GroupedListView<dynamic, String>(
7              controller: _scrollController,
8              keyboardDismissBehavior:
9                    ScrollViewKeyboardDismissBehavior.onDrag,
10              physics: const BouncingScrollPhysics(
11                    parent: AlwaysScrollableScrollPhysics()),
12              itemBuilder: (context, message) {
13                  return ListTile(
14                      title: ChatBubble(message),
15                  );
16                },
17              elements: messages,
18              groupBy: (message) => DateFormat('MMMM dd,yyyy')
19                    .format(message.timestamp.toDate()),
20              groupSeparatorBuilder: (String groupByValue) =>
21                    getMiddleChatBubble(context, groupByValue),
22              itemComparator: (item1, item2) =>
23                    item1.timestamp.compareTo(item2.timestamp),
24              useStickyGroupSeparators: false,
25              floatingHeader: false,
26              order: GroupedListOrder.ASC,
27              ),
28            ),
29          ),
30          WriteMessageBox(
31              group: group,
32              groupId: docs[0].id,
33              tokens: [widget.friendToken])
34        ],
35      );
36

1java.lang.RuntimeException: 
2  at android.app.ActivityThread.handleReceiver (ActivityThread.java:4321)
3  at android.app.ActivityThread.access$1600 (ActivityThread.java:247)
4  at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2068)
5  at android.os.Handler.dispatchMessage (Handler.java:106)
6  at android.os.Looper.loopOnce (Looper.java:201)
7  at android.os.Looper.loop (Looper.java:288)
8  at android.app.ActivityThread.main (ActivityThread.java:7842)
9  at java.lang.reflect.Method.invoke (Native Method)
10  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:548)
11  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1003)
12Caused by: android.app.ForegroundServiceStartNotAllowedException: 
13  at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel (ForegroundServiceStartNotAllowedException.java:54)
14  at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel (ForegroundServiceStartNotAllowedException.java:50)
15  at android.os.Parcel.readParcelable (Parcel.java:3333)
16  at android.os.Parcel.createExceptionOrNull (Parcel.java:2420)
17  at android.os.Parcel.createException (Parcel.java:2409)
18  at android.os.Parcel.readException (Parcel.java:2392)
19  at android.os.Parcel.readException (Parcel.java:2334)
20  at android.app.IActivityManager$Stub$Proxy.startService (IActivityManager.java:5971)
21  at android.app.ContextImpl.startServiceCommon (ContextImpl.java:1847)
22  at android.app.ContextImpl.startForegroundService (ContextImpl.java:1823)
23  at android.content.ContextWrapper.startForegroundService (ContextWrapper.java:779)
24  at android.content.ContextWrapper.startForegroundService (ContextWrapper.java:779)
25  at com.mypackage.appname.ui.widget.widget_package.WidgetClassName.onUpdate (WidgetClassName.java:48)
26  at android.appwidget.AppWidgetProvider.onReceive (AppWidgetProvider.java:66)
27  at com.mypackage.appname.ui.widget.widget_package.WidgetClassName.onReceive (WidgetClassName.java)
28  at android.app.ActivityThread.handleReceiver (ActivityThread.java:4312)
29  at android.app.ActivityThread.access$1600 (ActivityThread.java:247)
30  at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2068)
31  at android.os.Handler.dispatchMessage (Handler.java:106)
32  at android.os.Looper.loopOnce (Looper.java:201)
33  at android.os.Looper.loop (Looper.java:288)
34  at android.app.ActivityThread.main (ActivityThread.java:7842)
35  at java.lang.reflect.Method.invoke (Native Method)
36  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:548)
37  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1003)
38Caused by: android.os.RemoteException: 
39  at com.android.server.am.ActiveServices.startServiceLocked (ActiveServices.java:691)
40  at com.android.server.am.ActiveServices.startServiceLocked (ActiveServices.java:616)
41  at com.android.server.am.ActivityManagerService.startService (ActivityManagerService.java:11839)
42  at android.app.IActivityManager$Stub.onTransact (IActivityManager.java:2519)
43  at com.android.server.am.ActivityManagerService.onTransact (ActivityManagerService.java:2498)
44

1java.lang.RuntimeException: 
2  at android.app.ActivityThread.handleReceiver (ActivityThread.java:4321)
3  at android.app.ActivityThread.access$1600 (ActivityThread.java:247)
4  at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2068)
5  at android.os.Handler.dispatchMessage (Handler.java:106)
6  at android.os.Looper.loopOnce (Looper.java:201)
7  at android.os.Looper.loop (Looper.java:288)
8  at android.app.ActivityThread.main (ActivityThread.java:7842)
9  at java.lang.reflect.Method.invoke (Native Method)
10  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:548)
11  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1003)
12Caused by: android.app.ForegroundServiceStartNotAllowedException: 
13  at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel (ForegroundServiceStartNotAllowedException.java:54)
14  at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel (ForegroundServiceStartNotAllowedException.java:50)
15  at android.os.Parcel.readParcelable (Parcel.java:3333)
16  at android.os.Parcel.createExceptionOrNull (Parcel.java:2420)
17  at android.os.Parcel.createException (Parcel.java:2409)
18  at android.os.Parcel.readException (Parcel.java:2392)
19  at android.os.Parcel.readException (Parcel.java:2334)
20  at android.app.IActivityManager$Stub$Proxy.startService (IActivityManager.java:5971)
21  at android.app.ContextImpl.startServiceCommon (ContextImpl.java:1847)
22  at android.app.ContextImpl.startForegroundService (ContextImpl.java:1823)
23  at android.content.ContextWrapper.startForegroundService (ContextWrapper.java:779)
24  at android.content.ContextWrapper.startForegroundService (ContextWrapper.java:779)
25  at com.mypackage.appname.ui.widget.widget_package.WidgetClassName.onUpdate (WidgetClassName.java:48)
26  at android.appwidget.AppWidgetProvider.onReceive (AppWidgetProvider.java:66)
27  at com.mypackage.appname.ui.widget.widget_package.WidgetClassName.onReceive (WidgetClassName.java)
28  at android.app.ActivityThread.handleReceiver (ActivityThread.java:4312)
29  at android.app.ActivityThread.access$1600 (ActivityThread.java:247)
30  at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2068)
31  at android.os.Handler.dispatchMessage (Handler.java:106)
32  at android.os.Looper.loopOnce (Looper.java:201)
33  at android.os.Looper.loop (Looper.java:288)
34  at android.app.ActivityThread.main (ActivityThread.java:7842)
35  at java.lang.reflect.Method.invoke (Native Method)
36  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:548)
37  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1003)
38Caused by: android.os.RemoteException: 
39  at com.android.server.am.ActiveServices.startServiceLocked (ActiveServices.java:691)
40  at com.android.server.am.ActiveServices.startServiceLocked (ActiveServices.java:616)
41  at com.android.server.am.ActivityManagerService.startService (ActivityManagerService.java:11839)
42  at android.app.IActivityManager$Stub.onTransact (IActivityManager.java:2519)
43  at com.android.server.am.ActivityManagerService.onTransact (ActivityManagerService.java:2498)
44Caused by android.app.ForegroundServiceStartNotAllowedException: startForegroundService() not allowed due to mAllowStartForeground false: service com.mypackage.appname/.ui.widget.widget_package.MyForegroundServiceName
45       at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel(ForegroundServiceStartNotAllowedException.java:54)
46       at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel(ForegroundServiceStartNotAllowedException.java:50)
47       at android.os.Parcel.readParcelable(Parcel.java:3333)
48       at android.os.Parcel.createExceptionOrNull(Parcel.java:2420)
49       at android.os.Parcel.createException(Parcel.java:2409)
50       at android.os.Parcel.readException(Parcel.java:2392)
51       at android.os.Parcel.readException(Parcel.java:2334)
52       at android.app.IActivityManager$Stub$Proxy.startService(IActivityManager.java:5971)
53       at android.app.ContextImpl.startServiceCommon(ContextImpl.java:1847)
54       at android.app.ContextImpl.startForegroundService(ContextImpl.java:1823)
55       at android.content.ContextWrapper.startForegroundService(ContextWrapper.java:779)
56       at android.content.ContextWrapper.startForegroundService(ContextWrapper.java:779)
57       at com.mypackage.appname.ui.widget.widget_package.WidgetClassName.onUpdate(WidgetClassName.java:48)
58       at android.appwidget.AppWidgetProvider.onReceive(AppWidgetProvider.java:66)
59       at com.mypackage.appname.ui.widget.widget_package.WidgetClassName.onReceive(WidgetClassName.java)
60       at android.app.ActivityThread.handleReceiver(ActivityThread.java:4312)
61       at android.app.ActivityThread.access$1600(ActivityThread.java:247)
62       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2068)
63       at android.os.Handler.dispatchMessage(Handler.java:106)
64       at android.os.Looper.loopOnce(Looper.java:201)
65       at android.os.Looper.loop(Looper.java:288)
66       at android.app.ActivityThread.main(ActivityThread.java:7842)
67       at java.lang.reflect.Method.invoke(Method.java)
68       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
69       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
70

1class AddToFave extends StatefulWidget {
2  const AddToFave({Key? key}) : super(key: key);
3
4  @override
5  _AddToFaveState createState() => _AddToFaveState();
6}
7
8class _AddToFaveState extends State<AddToFave> {
9  List<String> unselected = [ '1','2','3','4','5','6','7','8','9','10'];
10  List<String> selected = [];
11  @override
12  Widget build(BuildContext context) {
13    return Scaffold(
14      body: SafeArea(
15        child: Row(
16          mainAxisAlignment: MainAxisAlignment.spaceBetween,
17          children: [
18            Container(
19              width: MediaQuery.of(context).size.width / 5,
20              height: MediaQuery.of(context).size.height,
21              child: ListView.builder(
22                  itemCount: selected.length,
23                  itemBuilder: (context, index) {
24                    return InkWell(
25                      onTap: () {
26                        unselected.add(selected[index]);
27                        selected.removeAt(index);
28                        setState(() {});
29                      },
30                      child: Container(
31                        width: MediaQuery.of(context).size.width / 5,
32                        height: MediaQuery.of(context).size.width / 5,
33                        decoration: BoxDecoration(
34                            color: Colors.black,
35                            borderRadius: BorderRadius.circular(
36                                MediaQuery.of(context).size.width / 5)),
37                        child: Center(
38                            child: Text(
39                          selected[index],
40                          style: TextStyle(color: Colors.white),
41                        )),
42                      ),
43                    );
44                  }),
45            ),
46            Container(
47              width: MediaQuery.of(context).size.width / 5,
48              height: MediaQuery.of(context).size.height,
49              child: ListView.builder(
50                  itemCount: unselected.length,
51                  itemBuilder: (context, index) {
52                    return InkWell(
53                      onTap: () {
54                        selected.add(unselected[index]);
55                        unselected.removeAt(index);
56                        setState(() {});
57                      },
58                      child: Container(
59                        width: MediaQuery.of(context).size.width / 5,
60                        height: MediaQuery.of(context).size.width / 5,
61                        decoration: BoxDecoration(
62                            color: Colors.black,
63                            borderRadius: BorderRadius.circular(
64                                MediaQuery.of(context).size.width / 5)),
65                        child: Center(
66                            child: Text(
67                          unselected[index],
68                          style: TextStyle(color: Colors.white),
69                        )),
70                      ),
71                    );
72                  }),
73            ),
74          ],
75        ),
76      ),
77    );
78  }
79}
80