flutter：经常用到的widget

IconButton( 
	icon: Image.asset(    'assets/icons/wechat2x.png', height: 30.h,  ),  
	onPressed: (){ }
)

icon: Icon(Icons.add_a_photo, size: 30, color: Colors.black,),
icon: Image.asset('assets/icons/wechat2x.png', height: 30.h,),
StorageManager.sharedPreferences.get("userId")
Navigator.of(context).push(MaterialPageRoute(builder: (_) =>
	RectificationOfProblemInfo(provider.model.records[index],isSelf: chargeFlag,))
);
Navigator.of(context).pop();
Navigator.pushAndRemoveUntil(context, MaterialPageRoute(builder: (context) {
	return LoginPage();
}),(route) => route.isCurrent,);
Navigator.push(context, MaterialPageRoute(builder: (context) {
              return InspectionTask();
            })).then((_) {
              setState(() {

              });
            });
Navigator.popUntil(context, (route) => route.isFirst);
leading: IconButton(
          icon: Icon(Icons.arrow_back_rounded),
          onPressed: () {
            Navigator.push(context, MaterialPageRoute(builder: (context) {
              return InspectionTask();
            })).then((_) {
              setState(() {

              });
            });
            // Navigator.popUntil(context, (route) => route.isFirst);
          },
        ),
text:"${TextUtils.replaceNotValid(provider.model.records[index].orderDesc, '-')}",
ListView.builder(
  shrinkWrap: true,
  itemCount: provider.model.records.length,
  itemBuilder: (ctx, index) {
  return Text("")
 })
 width:MediaQuery.of(context).size.width,
 Theme(
	data: Theme.of(context).copyWith(
	  dividerColor: Colors.transparent),
	  child:Text("")
	)
)
GestureDetector(
  onTap: () {}
  child:Text("")
)
RaisedButton(
  color:Colors.blue,
  textColor:Colors.white,
  child: Text('确定'),
  onPressed: () {
	// 跳转创建问题整改单
	Navigator.push( context, MaterialPageRoute(builder: (context) {
		return RectificationProblemCreate(widget.inspectionTaskDetail);
	}));
  },
),
Fluttertoast.showToast(
  msg: "忽略原因必填",
  toastLength: Toast.LENGTH_SHORT,
  gravity: ToastGravity.CENTER,
  timeInSecForIosWeb: 1,// 显示的时间
  backgroundColor: Colors.grey[100],// 自定义背景色
  textColor: Colors.red,// 自定义字体颜色
  fontSize: 16.0);// 自定义字体大小
}
//按回车键搜索
TextField(
                            controller: searchController,
                            focusNode: focusNode,
                            maxLines: 1,
                            textAlign: TextAlign.start,
                            style: TextStyle(
                                fontSize: 15.sp,
                                color: Color(0xFF222222)
                            ),
                            decoration: InputDecoration(
                                fillColor:Colors.white,
                                filled: true,
                                border: InputBorder.none,
                                contentPadding: EdgeInsets.zero,
                                // isDense: true,
                                hintText: "请输入搜索",
                                hintStyle: TextStyle(
                                    fontSize: 15.sp,
                                    color: Colors.grey,
                                )
                            ),
                            textInputAction: TextInputAction.search,
                            onEditingComplete: () {
                              // 进行搜索
                              _provider.keyWord=searchController.text.trim();
                              focusNode.unfocus();
                              _provider.initData();
                              setState(() {

                              });
                            },
Text("手机验证码登陆",
                                                      // strutStyle:StrutStyle(
                                                      //   // fontSize: 18,
                                                      //   // height: 1.2,
                                                      //   // leading: 0.5,
                                                      //   ),style: TextStyle(
                                                      //       decoration: TextDecoration.underline,
                                                      //     decorationColor: Colors.blueAccent[700],
                                                      //     decorationStyle: TextDecorationStyle.solid,
                                                      //     decorationThickness: 3,
                                                      // ),
                                                    ),

https://blog.csdn.net/u010156024/article/details/48207145