根据Flutter SQFlite的数据分配图标值

Question

我正在尝试根据未来构建器内部数据库的数据在卡上加载喜欢的按钮。在ListView.builder中使用以下代码时，将值设置为true，按钮点击不会更改它。我认为这是因为Futurebuilder。

txtData.zFavourite == null
                    ? isFavourite[index] = false
                    : isFavourite[index] = true;

它还需要初始化iSfavureite的值，如果它是在小部件之外分配的，则我不会从数据库中获取数据，因为它直接加载到了将来的构建器中。 我们如何根据数据库中的数据分配ISFAVURITE的值并根据按钮单击更改喜爱的图标？

我也检查了此链接到处理按钮单击单个列表。

late List<bool> isFavourite = [false, false];
Widget _displayZhesa() {
    return FutureBuilder<List<Zhebsa>>(
        future: _getZhebsa(),
        builder: (context, snapshot) {
          if (snapshot.connectionState == ConnectionState.waiting) {
            return const Center(
              child: CircularProgressIndicator(),
            );
          }
          if (snapshot.hasData) {
            return ListView.builder(
              itemCount: snapshot.data!.length,
              itemBuilder: (context, index) {
                final txtData = snapshot.data![index];
                txtData.zFavourite == null
                    ? isFavourite[index] = false
                    : isFavourite[index] = true;
                return Card(
                  elevation: 10,
                  color: Colors.white70,
                  shadowColor: Colors.amber[500],
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Container(
                        padding: const EdgeInsets.all(5.0),
                        width: double.infinity,
                        decoration: BoxDecoration(
                          color: Colors.orange[400],
                          border: Border.all(
                            color: Colors.amber.shade100,
                            width: 2,
                          ),
                        ),
                        child: Center(
                          child: Text(
                            sQuery,
                            style: const TextStyle(
                                color: Colors.black,
                                fontSize: 20,
                                fontWeight: FontWeight.w500),
                          ),
                        ),
                      ),
                      Row(
                        children: <Widget>[
                          Center(
                            child: IconButton(
                              onPressed: () {
                                setState(() {
                                  isFavourite[index] = !isFavourite[index];
                                });
                              },
                              /* () =>
                                  _setFaviurite(txtData.zFavourite, index), */
                              icon: Icon(
                                isFavourite[index]
                                    ? Icons.favorite_sharp
                                    : Icons.favorite_border_sharp,
                                size: 30.0,
                                color: Colors.redAccent,
                              ),
                            ),
                          ),
                          Expanded(
                            child: ListTile(
                              title: const Text('ཞེ་ས།'),
                              subtitle: Text(txtData.zWord), //ཞེ་སའི་ཚིག
                            ),
                          ),
                          Container(
                            padding: const EdgeInsets.only(right: 20),
                            child: IconButton(
                              onPressed: () {
                                isPlayingPronunciation
                                    ? stopPronunciation()
                                    : _playPronunciation(
                                        '${txtData.zPronunciation}');
                                setState(() {
                                  isPlayingPronunciation =
                                      !isPlayingPronunciation;
                                });
                              },
                              icon: Icon(
                                isPlayingPronunciation
                                    ? Icons.stop_circle_outlined
                                    : Icons.volume_up,
                                size: 50.0,
                                color: Colors.blue,
                              ),
                            ),
                          ),
                        ],
                      ),
                      Container(
                        padding: const EdgeInsets.only(left: 30.0),
                        child: ListTile(
                          title: const Text('དཔེར་བརྗོད།'),
                          subtitle: SelectableText('${txtData.zPhrase}'),
                        ),
                      ),
                    ],
                  ),
                );
              },
            );
          } else {
            return const Text('No Data');
          }
        });
  }