Dismissable Widget Sample

dismissible_widget_sample.dart

return Dismissible(
                  key: Key(index.toString()),
                  onDismissed: (direction) {
                    showDialog(
                      context: context,
                      barrierDismissible: false,
                      builder: (_) => AlertDialog(
                        content: Text(
                          "Do you want to delete task ${currentItem.title}?",
                        ),
                        actions: <Widget>[
                          OutlinedButton(
                            child: Text("No"),
                            onPressed: () {
                              // _rebuildAllChildren(context);
                              Navigator.of(context).pop();
                            },
                          ),
                          OutlinedButton(
                            child: Text("Yes"),
                            onPressed: () async {
                              await box.deleteAt(index);
                              // _rebuildAllChildren(context);
                              Navigator.of(context).pop();
                            },
                          ),
                        ],
                      ),
                    );
                  },
                  child: CheckboxListTile(
                    title: currentItem.title.isNotEmpty
                        ? Text(currentItem.title)
                        : Text('Tap to add a title'),
                    subtitle: currentItem.description.isNotEmpty
                        ? Text(currentItem.description)
                        : Text('Tap to add some details'),
                    secondary: Icon(
                      Icons.add_task,
                    ),
                    value: currentItem.isMarkedComplete,
                    controlAffinity: ListTileControlAffinity.platform,
                    onChanged: (bool? checked) {
                      if (checked == null) return;
                      setState(() {
                        currentItem.isMarkedComplete = checked;
                      });
                    },
                    //CheckboxListTile(value: value, onChanged: (){})
                  ),
                );