它会在 flutter 中给出标签图标吗？

Question

我正在尝试为我的 flutter 使用主题标签图标 app.It 无论如何都可以获得这个图标？。也许在 material 设计中？我需要它作为前缀图标。希望有人能帮忙

这是我的代码

Container(
                              width: 160,
                              height: 55,
                              margin: EdgeInsets.only(left: 8, right: 10),
                              child: TextField(
                                controller: hashtagcontroller2,
                                decoration: InputDecoration(
                                  hintText: '    Hashtag2',
                                  prefixIcon: ,
                                  border: OutlineInputBorder(
                                    borderRadius: const BorderRadius.all(
                                      const Radius.circular(30.0),
                                    ),
                                    borderSide: BorderSide(
                                        width: 2, color: Colors.black),
                                  ),
                                  focusedBorder: OutlineInputBorder(
                                    borderRadius: const BorderRadius.all(
                                      const Radius.circular(40.0),
                                    ),
                                    borderSide: BorderSide(
                                        width: 2, color: Colors.black),

Answer 1

Container(
                width: 160,
                height: 55,
                margin: EdgeInsets.only(left: 8, right: 10),
                child: TextField(
                      controller: hashtagcontroller2,
                    decoration: InputDecoration(
                        prefixIcon: Padding(
                          padding: const EdgeInsets.only(top: 16.0, left: 20),
                          child: Text(
                            "#",
                          ),
                        ),
                        border: OutlineInputBorder(
                          borderRadius: const BorderRadius.all(
                            const Radius.circular(30.0),
                          ),
                          borderSide: BorderSide(width: 2, color: Colors.black),
                        ),
                        focusedBorder: OutlineInputBorder(
                          borderRadius: const BorderRadius.all(
                            const Radius.circular(40.0),
                          ),
                          borderSide: BorderSide(width: 2, color: Colors.black),
                        )))),

它会在 flutter 中给出标签图标吗？

Does it gives an hashtag icon in flutter?

material-design

flutter