flutter button

去除水波纹

IconButton

           highlightColor: Colors.transparent,
              splashColor: Colors.transparent,

TextButton

TextButton(
                      onPressed: () {

                      },
                      style: ButtonStyle(
                        overlayColor: MaterialStateProperty.all<Color>(Colors.transparent),
                      ),
                      child: Row(
                        children: [
                          Expanded(
                            child: Text(
                                "请选择",
                                textAlign: TextAlign.start,
                                style: TextStyle(color: Color(0xff666666),
                                )
                            ),
                          )
                        ],
                      )

                  )