帶圓角的滑動容器 flutter

Question

我想做什么：

我正在嘗試讓這個容器滑動。 幻燈片以與其他項目相同的邊距開始，基本上讓背景充滿另一種顏色並保持項目的圓角。

Answer 1

如果您想滑動按鈕並在文本容器的背景中執行更多操作，例如刪除、撤消。 您必須使用Dismissible包裝該小部件。 Yoy 可以訪問此站點以獲取文檔https://docs.flutter.dev/cookbook/gestures/dismissible

還有一個示例代碼：

import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

// MyApp is a StatefulWidget. This allows updating the state of the
// widget when an item is removed.
class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  MyAppState createState() {
    return MyAppState();
  }
}

class MyAppState extends State<MyApp> {
  final items = List<String>.generate(20, (i) => 'Item ${i + 1}');

  @override
  Widget build(BuildContext context) {
    const title = 'Dismissing Items';

    return MaterialApp(
      title: title,
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: Scaffold(
        appBar: AppBar(
          title: const Text(title),
        ),
        body: ListView.builder(
          itemCount: items.length,
          itemBuilder: (context, index) {
            final item = items[index];
            return Dismissible(
              // Each Dismissible must contain a Key. Keys allow Flutter to
              // uniquely identify widgets.
              key: Key(item),
              // Provide a function that tells the app
              // what to do after an item has been swiped away.
              onDismissed: (direction) {
                // Remove the item from the data source.
                setState(() {
                  items.removeAt(index);
                });

                // Then show a snackbar.
                ScaffoldMessenger.of(context)
                    .showSnackBar(SnackBar(content: Text('$item dismissed')));
              },
              // Show a red background as the item is swiped away.
              background: Container(color: Colors.red),
              child: ListTile(
                title: Text(item),
              ),
            );
          },
        ),
      ),
    );
  }
}```