login_page.dart
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import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:one_key/app.dart';
import 'package:one_key/provider/user_model.dart';
import 'package:one_key/res/colors.dart';
import 'package:one_key/utils/navigator_util.dart';
import 'package:one_key/widgets/h_empty_view.dart';
import 'package:one_key/widgets/v_empty_view.dart';
import 'package:provider/provider.dart';
class LoginPage extends StatefulWidget {
@override
State<StatefulWidget> createState() {
// TODO: implement createState
return new LoginState();
}
}
class LoginState extends State<LoginPage> with WidgetsBindingObserver{
TextEditingController _sellerCodeController=TextEditingController();
TextEditingController _accountController = TextEditingController();
final TextEditingController _pwdController = TextEditingController();
final ScrollController _scrollController=new ScrollController();
final FocusNode _sellerCodeFocusNode=new FocusNode();
final FocusNode _accountFocusNode=new FocusNode();
final FocusNode _pwdFocusNode=new FocusNode();
bool obscureText=true;//是否隐藏密码
bool isActivate=false;//是否激活登录
String errorText="";//错误提示
bool _check = true;
@override
void initState(){
// TODO: implement initState
super.initState();
isLogin();
WidgetsBinding.instance.addObserver(this);
WidgetsBinding.instance.addPostFrameCallback((_){
final UserModel userModel=Provider.of<UserModel>(context,listen: false);
if(userModel!=null&&userModel.user!=null){
Future.delayed(Duration(milliseconds: 50),(){
_sellerCodeController.text=userModel.user.sellercode;
_accountController.text=userModel.user.account;
FocusScope.of(context).requestFocus(_pwdFocusNode);
});
}
});
}
handlePostFrame(_){
_scrollController.jumpTo(_scrollController.position.maxScrollExtent);
}
@override
void didChangeMetrics() {
// TODO: implement didChangeMetrics
WidgetsBinding.instance.addPostFrameCallback(handlePostFrame);
super.didChangeDependencies();
}
@override
void dispose() {
// TODO: implement dispose
WidgetsBinding.instance.removeObserver(this);
super.dispose();
}
//监听输入框，设置登录按钮状态
setActivate(){
if(_sellerCodeController.text.isNotEmpty&&_accountController.text.isNotEmpty&&_pwdController.text.isNotEmpty){
setState(() {
errorText="";
isActivate=true;
});
}else{
setState(() {
errorText="";
isActivate=false;
});
}
}
//判断是否登录
void isLogin()async{
await App.initSp();
UserModel userModel=Provider.of<UserModel>(context,listen: false);
userModel.initUser();
if(App.sp.getBool("isLogin")??false){
Future.delayed(Duration(milliseconds: 200),(){
NavigatorUtil.goHomePage(context);
});
}
}
@override
Widget build(BuildContext context) {
// TODO: implement build
ScreenUtil.init(context,width: 750,height: 1334);
final Size size=MediaQuery.of(context).size;
App.screenWidth=size.width;
App.screenHeight=size.height;
App.statusBarHeight=MediaQuery.of(context).padding.top;
App.bottomBarHeight=MediaQuery.of(context).padding.bottom;
final double prefixIconWidth=ScreenUtil().setWidth(24);
return Scaffold(
backgroundColor: MyColours.color_ffffff,
body: Container(
width: double.infinity,
height: double.infinity,
child: SingleChildScrollView(
controller: _scrollController,
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
VEmptyView(218-App.statusBarHeight),
Image.asset("assets/logo.png",width: ScreenUtil().setWidth(217),height: ScreenUtil().setWidth(206),),
VEmptyView(121),
Container(
height: ScreenUtil().setHeight(84),
width: ScreenUtil().setWidth(611),
padding: EdgeInsets.only(left: ScreenUtil().setWidth(20)),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border.all(color: MyColours.color_bff6f7,width: ScreenUtil().setWidth(2)),
borderRadius: BorderRadius.circular(ScreenUtil().setWidth(8))
),
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Image.asset("assets/icon_sellercode.png",width: prefixIconWidth,),
HEmptyView(26),
Text("商户编号",style: TextStyle(color: MyColours.color_353535,fontSize: ScreenUtil().setSp(28)),),
Expanded(
child: TextField(
controller: _sellerCodeController,
focusNode: _sellerCodeFocusNode,
autofocus: _sellerCodeController.text.isEmpty,
style: TextStyle(color: MyColours.color_353535,fontSize: ScreenUtil().setSp(28),textBaseline: TextBaseline.alphabetic),
textAlignVertical: TextAlignVertical.center,
decoration: InputDecoration(
hintText: "请输入6位商户编码",
hintStyle: TextStyle(color: MyColours.color_c1c1c1,fontSize: ScreenUtil().setSp(28),),
border: InputBorder.none,
contentPadding: EdgeInsets.symmetric(horizontal: 10,vertical: 14),
),
onChanged: (_){
setActivate();
},
keyboardType: TextInputType.number,
),
)
],
)
),
Container(
height: ScreenUtil().setHeight(84),
width: ScreenUtil().setWidth(611),
padding: EdgeInsets.only(left: ScreenUtil().setWidth(20)),
margin: EdgeInsets.only(top: ScreenUtil().setHeight(8)),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border.all(color: MyColours.color_bff6f7,width: ScreenUtil().setWidth(2)),
borderRadius: BorderRadius.circular(ScreenUtil().setWidth(8))
),
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Image.asset("assets/icon_account.png",width: prefixIconWidth,),
HEmptyView(26),
Text("工 号",style: TextStyle(color: MyColours.color_353535,fontSize: ScreenUtil().setSp(28)),),
Expanded(
child: TextField(
controller: _accountController,
focusNode: _accountFocusNode,
style: TextStyle(color: MyColours.color_353535,fontSize: ScreenUtil().setSp(28)),
decoration: InputDecoration(
hintText: "请输入4位工号",
hintStyle: TextStyle(color: MyColours.color_c1c1c1,fontSize: ScreenUtil().setSp(28)),
border: InputBorder.none,
contentPadding: EdgeInsets.symmetric(horizontal: 10,vertical: 14),
),
onChanged: (_){
setActivate();
},
keyboardType: TextInputType.number,
),
)
],
)
),
Container(
height: ScreenUtil().setHeight(84),
width: ScreenUtil().setWidth(611),
padding: EdgeInsets.only(left: ScreenUtil().setWidth(20),right: ScreenUtil().setWidth(27)),
margin: EdgeInsets.only(top: ScreenUtil().setHeight(8)),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border.all(color: MyColours.color_bff6f7,width: ScreenUtil().setWidth(2)),
borderRadius: BorderRadius.circular(ScreenUtil().setWidth(8))
),
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Image.asset("assets/icon_pwd.png",width: prefixIconWidth,),
HEmptyView(26),
Text("密 码",style: TextStyle(color: MyColours.color_353535,fontSize: ScreenUtil().setSp(28)),),
Expanded(
child: TextField(
controller: _pwdController,
focusNode: _pwdFocusNode,
autofocus: _sellerCodeController.text.isNotEmpty&&_accountController.text.isNotEmpty&&_pwdController.text.isEmpty,
style: TextStyle(color: MyColours.color_353535,fontSize: ScreenUtil().setSp(28)),
decoration: InputDecoration(
hintText: "请输入密码",
hintStyle: TextStyle(color: MyColours.color_c1c1c1,fontSize: ScreenUtil().setSp(28)),
border: InputBorder.none,
contentPadding: EdgeInsets.symmetric(horizontal: 10,vertical: 14),
),
onChanged: (_){
setActivate();
},
obscureText: obscureText,
keyboardType: TextInputType.text,
),
),
GestureDetector(
child: Padding(padding: EdgeInsets.all(ScreenUtil().setWidth(10)),child: Image.asset(obscureText?"assets/icon_pwd_show.png":"assets/icon_pwd_hide.png",width: ScreenUtil().setWidth(35),height: ScreenUtil().setHeight(24),),),
onTap: (){
setState(() {
obscureText=!obscureText;
});
},
)
],
)
),
Container(
width: ScreenUtil().setWidth(611),
margin: EdgeInsets.only(top: ScreenUtil().setHeight(16)),
alignment: Alignment.centerLeft,
child: Text(errorText,style: TextStyle(color: MyColours.color_d93535,fontSize: ScreenUtil().setSp(16)),),
),
Consumer<UserModel>(
builder: (BuildContext context,UserModel value,Widget child){
return GestureDetector(
onTap: (){
if(!isActivate)return;
Map<String,String> params={
"seller_code":"${_sellerCodeController.text}",
"alias":"ssahdahgdafgahjkhakjgh",
"account":"${_accountController.text}",
"password":"${_pwdController.text}"
};
value.login(context, params).then((value){
setState(() {
errorText=value??"";
});
});
},
child: Container(
height: ScreenUtil().setHeight(80),
width: ScreenUtil().setWidth(611),
margin: EdgeInsets.only(top: ScreenUtil().setHeight(56)),
alignment: Alignment.center,
decoration: BoxDecoration(
color: isActivate?MyColours.color_2bb5b7:MyColours.color_2bb5b7,
boxShadow: [
BoxShadow(color: MyColours.color_26000000,offset: Offset(0,ScreenUtil().setWidth(4)),)
],
borderRadius: BorderRadius.all(Radius.circular(ScreenUtil().setWidth(8)))
),
child: Text("登录",style: TextStyle(color: MyColours.color_ffffff,fontSize: ScreenUtil().setSp(34)),),
),
);
},
),
VEmptyView(20),
Row(
// mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
InkWell(
onTap: () {
setState(() {
_check = !_check;
});
},
child: Container(
// color: Colors.red,
// height: ScreenUtil().setWidth(34),
padding: EdgeInsets.only(
left: ScreenUtil().setWidth(102),
top: ScreenUtil().setWidth(10),
bottom: ScreenUtil().setWidth(10)),
child: Center(
child: Image.asset(
_check
? "assets/mine_radio_sel.png"
: "assets/mine_radio_nor.png",
width: ScreenUtil().setWidth(42),
height: ScreenUtil().setWidth(42)),
))),
HEmptyView(6),
Text(
'已阅读并同意',
style: TextStyle(
fontSize: ScreenUtil().setSp(24),
color: MyColours.color_353535),
),
InkWell(
onTap: () {
NavigatorUtil.goWebPage(context, '软件服务协议', "xy");
},
child: Text(
'《软件服务协议》',
style: TextStyle(
fontSize: ScreenUtil().setSp(24),
color: MyColours.color_2bb5b7),
),
),
Text('及',
style: TextStyle(
fontSize: ScreenUtil().setSp(24),
color: MyColours.color_353535)),
InkWell(
onTap: () {
NavigatorUtil.goWebPage(context, '隐私政策', "zc");
},
child: Text('《隐私政策》',
style: TextStyle(
fontSize: ScreenUtil().setSp(24),
color: MyColours.color_2bb5b7)),
)
],
),
],
),
),
)
);
}
}