flutter_swipe_action_cell 2.0.4

An awesome UI package incluing iOS style cell swipe action effect.You can use this package to implement iOS style tableView cell swipe action

example/lib/main.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_swipe_action_cell/flutter_swipe_action_cell.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: SwipeActionPage(),
    );
  }
}

class Model {
  String id = UniqueKey().toString();
  int index;

  @override
  String toString() {
    return index.toString();
  }
}

class SwipeActionPage extends StatefulWidget {
  @override
  _SwipeActionPageState createState() => _SwipeActionPageState();
}

class _SwipeActionPageState extends State<SwipeActionPage> {
  List<Model> list = List.generate(30, (index) {
    return Model()..index = index;
  });

  SwipeActionController controller;

  @override
  void initState() {
    super.initState();
    controller = SwipeActionController(selectedIndexPathsChangeCallback:
        (changedIndexPaths, selected, currentCount) {
      print(
          'cell at ${changedIndexPaths.toString()} is/are ${selected ? 'selected' : 'unselected'} ,current selected count is $currentCount');

      ///I just call setState() to update simply in this example.
      ///But the whole page will be rebuilt.
      ///So when you are developing,you'd better update a little piece
      ///of UI sub tree for best performance....

      setState(() {});
    });
  }

  @override
  Widget build(BuildContext context) {

    ///What's the tap-close area ??
    ///When you tap any position in this
    ///area,all opening cell will close.
    return SwipeActionCellTapCloseArea(
      child: Scaffold(
        floatingActionButton: CupertinoButton.filled(
            child: Text('switch'),
            onPressed: () {
              controller.toggleEditingMode();
            }),
        appBar: CupertinoNavigationBar(
          middle: CupertinoButton.filled(
              padding: EdgeInsets.symmetric(vertical: 10, horizontal: 10),
              minSize: 0,
              child: Text('deselect all', style: TextStyle(fontSize: 22)),
              onPressed: () {
                controller.deselectAll();
              }),
          leading: CupertinoButton.filled(
              padding: const EdgeInsets.symmetric(horizontal: 0, vertical: 10),
              minSize: 0,
              child: Text(
                  'delete cells (${controller.getSelectedIndexPaths().length})',
                  style: TextStyle(color: Colors.white)),
              onPressed: () {
                ///获取选取的索引集合
                List<int> selectedIndexes = controller.getSelectedIndexPaths();

                List<String> idList = [];
                selectedIndexes.forEach((element) {
                  idList.add(list[element].id);
                });

                ///遍历id集合，并且在原来的list中删除这些id所对应的数据
                idList.forEach((itemId) {
                  list.removeWhere((element) {
                    return element.id == itemId;
                  });
                });

                ///更新内部数据，这句话一定要写哦
                controller.deleteCellAt(indexPaths: selectedIndexes);
                setState(() {});
              }),
          trailing: CupertinoButton.filled(
              minSize: 0,
              padding: EdgeInsets.all(10),
              child: Text('select all'),
              onPressed: () {
                controller.selectAll(dataLength: list.length);
              }),
        ),
        body: ListView.builder(
          physics: BouncingScrollPhysics(),
          itemCount: list.length,
          itemBuilder: (context, index) {
            return _item(context, index);
          },
        ),
      ),
    );
  }

  Widget _item(BuildContext ctx, int index) {
    return SwipeActionCell(
      controller: controller,
      index: index,
      key: ValueKey(list[index]),
      performsFirstActionWithFullSwipe: true,
      trailingActions: [
        SwipeAction(
            title: "delete",
            nestedAction: SwipeNestedAction(title: "confirm"),
            onTap: (handler) async {
              await handler(true);
              list.removeAt(index);
              setState(() {});
            }),
        SwipeAction(title: "action2", color: Colors.grey, onTap: (handler) {}),
      ],
      leadingActions: [
        SwipeAction(
            title: "delete",
            onTap: (handler) async {
              await handler(true);
              list.removeAt(index);
              setState(() {});
            }),
        SwipeAction(
            title: "action3", color: Colors.orange, onTap: (handler) {}),
      ],
      child: GestureDetector(
        onTap: () {
          Scaffold.of(ctx)..showSnackBar(SnackBar(
              content: Text(
            'tap',
          )));
        },
        child: Padding(
          padding: const EdgeInsets.all(15.0),
          child: Text("This is index of ${list[index]}",
              style: TextStyle(fontSize: 25)),
        ),
      ),
    );
  }
}