Taha Tesser 00ef750d28

[Reland] Introduce double Flex.spacing parameter for Row/Column spacing (#152890) ...

Relands https://github.com/flutter/flutter/pull/152472 (Fixed error causing message test, maybe by https://github.com/flutter/flutter/pull/152501)

---

fixes [add spacing parameter to Column and Row](https://github.com/flutter/flutter/issues/55378)

### `Column.spacing` Code sample

<details>
<summary>expand to view the code sample</summary> 

```dart
import 'package:flutter/material.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        backgroundColor: Colors.black,
        body: Center(
          child: Padding(
            padding: const EdgeInsets.all(16.0),
            child: DecoratedBox(
              decoration: BoxDecoration(
                  border: Border.all(
                color: Colors.amber,
              )),
              child: const Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Column(
                    spacing: 40.0,
                    // ignore: avoid_redundant_argument_values
                    mainAxisAlignment: MainAxisAlignment.start,
                    children: <Widget>[
                      ColoredBox(
                        color: Color(0xffff0000),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.topCenter,
                            child: Text(
                              'RED',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff00ff00),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Center(
                            child: Text(
                              'GREEN',
                              style: TextStyle(color: Colors.black),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff0000ff),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.bottomCenter,
                            child: Text(
                              'BLUE',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ],
                  ),
                  Column(
                    spacing: 40.0,
                    mainAxisAlignment: MainAxisAlignment.center,
                    children: <Widget>[
                      ColoredBox(
                        color: Color(0xffff0000),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.topCenter,
                            child: Text(
                              'RED',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff00ff00),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Center(
                            child: Text(
                              'GREEN',
                              style: TextStyle(color: Colors.black),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff0000ff),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.bottomCenter,
                            child: Text(
                              'BLUE',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ],
                  ),
                  Column(
                    spacing: 40.0,
                    mainAxisAlignment: MainAxisAlignment.end,
                    children: <Widget>[
                      ColoredBox(
                        color: Color(0xffff0000),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.topCenter,
                            child: Text(
                              'RED',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff00ff00),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Center(
                            child: Text(
                              'GREEN',
                              style: TextStyle(color: Colors.black),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff0000ff),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.bottomCenter,
                            child: Text(
                              'BLUE',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ],
                  ),
                  Column(
                    spacing: 40.0,
                    mainAxisAlignment: MainAxisAlignment.spaceBetween,
                    children: <Widget>[
                      ColoredBox(
                        color: Color(0xffff0000),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.topCenter,
                            child: Text(
                              'RED',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff00ff00),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Center(
                            child: Text(
                              'GREEN',
                              style: TextStyle(color: Colors.black),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff0000ff),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.bottomCenter,
                            child: Text(
                              'BLUE',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ],
                  ),
                  Column(
                    spacing: 40.0,
                    mainAxisAlignment: MainAxisAlignment.spaceAround,
                    children: <Widget>[
                      ColoredBox(
                        color: Color(0xffff0000),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.topCenter,
                            child: Text(
                              'RED',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff00ff00),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Center(
                            child: Text(
                              'GREEN',
                              style: TextStyle(color: Colors.black),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff0000ff),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.bottomCenter,
                            child: Text(
                              'BLUE',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ],
                  ),
                  Column(
                    spacing: 40.0,
                    mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                    children: <Widget>[
                      ColoredBox(
                        color: Color(0xffff0000),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.topCenter,
                            child: Text(
                              'RED',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff00ff00),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Center(
                            child: Text(
                              'GREEN',
                              style: TextStyle(color: Colors.black),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff0000ff),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.bottomCenter,
                            child: Text(
                              'BLUE',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ],
                  ),
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }
}
```

</details>

### Preview

<img width="1072" alt="Screenshot 2024-07-30 at 15 40 59" src="https://github.com/user-attachments/assets/14f21091-9e46-4a58-8552-1379f4ba9216">

### `Row.spacing` Code sample

<details>
<summary>expand to view the code sample</summary> 

```dart
import 'package:flutter/material.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        backgroundColor: Colors.black,
        body: Center(
          child: Padding(
            padding: const EdgeInsets.all(16.0),
            child: DecoratedBox(
              decoration: BoxDecoration(
                  border: Border.all(
                color: Colors.amber,
              )),
              child: const Column(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Row(
                    spacing: 40.0,
                    // ignore: avoid_redundant_argument_values
                    mainAxisAlignment: MainAxisAlignment.start,
                    children: <Widget>[
                      ColoredBox(
                        color: Color(0xffff0000),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.centerLeft,
                            child: Text(
                              'RED',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff00ff00),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Center(
                            child: Text(
                              'GREEN',
                              style: TextStyle(color: Colors.black),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff0000ff),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.centerRight,
                            child: Text(
                              'BLUE',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ],
                  ),
                  Row(
                    spacing: 40.0,
                    mainAxisAlignment: MainAxisAlignment.center,
                    children: <Widget>[
                      ColoredBox(
                        color: Color(0xffff0000),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.centerLeft,
                            child: Text(
                              'RED',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff00ff00),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Center(
                            child: Text(
                              'GREEN',
                              style: TextStyle(color: Colors.black),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff0000ff),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.centerRight,
                            child: Text(
                              'BLUE',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ],
                  ),
                  Row(
                    spacing: 40.0,
                    mainAxisAlignment: MainAxisAlignment.end,
                    children: <Widget>[
                      ColoredBox(
                        color: Color(0xffff0000),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.centerLeft,
                            child: Text(
                              'RED',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff00ff00),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Center(
                            child: Text(
                              'GREEN',
                              style: TextStyle(color: Colors.black),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff0000ff),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.centerRight,
                            child: Text(
                              'BLUE',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ],
                  ),
                  Row(
                    spacing: 40.0,
                    mainAxisAlignment: MainAxisAlignment.spaceBetween,
                    children: <Widget>[
                      ColoredBox(
                        color: Color(0xffff0000),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.centerLeft,
                            child: Text(
                              'RED',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff00ff00),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Center(
                            child: Text(
                              'GREEN',
                              style: TextStyle(color: Colors.black),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff0000ff),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.centerRight,
                            child: Text(
                              'BLUE',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ],
                  ),
                  Row(
                    spacing: 40.0,
                    mainAxisAlignment: MainAxisAlignment.spaceAround,
                    children: <Widget>[
                      ColoredBox(
                        color: Color(0xffff0000),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.centerLeft,
                            child: Text(
                              'RED',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff00ff00),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Center(
                            child: Text(
                              'GREEN',
                              style: TextStyle(color: Colors.black),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff0000ff),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.centerRight,
                            child: Text(
                              'BLUE',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ],
                  ),
                  Row(
                    spacing: 40.0,
                    mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                    children: <Widget>[
                      ColoredBox(
                        color: Color(0xffff0000),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            alignment: Alignment.centerLeft,
                            child: Text(
                              'RED',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff00ff00),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Center(
                            child: Text(
                              'GREEN',
                              style: TextStyle(color: Colors.black),
                            ),
                          ),
                        ),
                      ),
                      ColoredBox(
                        color: Color(0xff0000ff),
                        child: SizedBox(
                          width: 50.0,
                          height: 75.0,
                          child: Align(
                            child: Text(
                              'BLUE',
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ],
                  ),
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }
}

```

</details>

### Preview

<img width="1072" alt="Screenshot 2024-07-30 at 15 39 42" src="https://github.com/user-attachments/assets/717e9f5e-a491-4853-ba74-e72ec7493363">

2024-08-05 23:04:50 +00:00

..

android_java11_integration.shard

Set up tests that verify we can build a fresh counter app across our Gradle/AGP/Kotlin support range (#151568)

2024-07-31 19:14:46 +00:00

android_preview_integration.shard

…

commands.shard

Fix some tests that fail with Swift Package Manager enabled (#152267)

2024-07-26 21:08:32 +00:00

data

…

general.shard

Add migration to git ignore SwiftPM build directories (#152766)

2024-08-05 20:26:16 +00:00

host_cross_arch.shard

Fix some tests that fail with Swift Package Manager enabled (#152267)

2024-07-26 21:08:32 +00:00

integration.shard

[Reland] Introduce double Flex.spacing parameter for Row/Column spacing (#152890)

2024-08-05 23:04:50 +00:00

src

Set up tests that verify we can build a fresh counter app across our Gradle/AGP/Kotlin support range (#151568)

2024-07-31 19:14:46 +00:00

web.shard

…