coupon_page.dart
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import 'package:flutter/material.dart';
import 'package:flutter_easyrefresh/easy_refresh.dart';
import 'package:flutter_screenutil/screenutil.dart';
import 'package:one_key/constant/state.dart';
import 'package:one_key/pages/coupon/coupon_item.dart';
import 'package:one_key/provider/coupon_provider.dart';
import 'package:one_key/provider/user_model.dart';
import 'package:one_key/res/colors.dart';
import 'package:one_key/utils/event_bus.dart';
import 'package:one_key/route/navigator_util.dart';
import 'package:one_key/widgets/page_exception.dart';
import 'package:one_key/widgets/round_button.dart';
import 'package:one_key/widgets/system_app_bar.dart';
import 'package:one_key/widgets/v_empty_view.dart';
import 'package:provider/provider.dart';
/**
* 优惠券列表
*/
class CouponPage extends StatefulWidget {
final bool needRefrsh;
CouponPage({Key key, this.needRefrsh = false}) : super(key: key);
@override
_CouponPageState createState() => _CouponPageState();
}
class _CouponPageState extends State<CouponPage> {
EasyRefreshController _controller = EasyRefreshController();
CouponProvider couponProvider;
///获取优惠券列表数据
_couponNetworkData({bool isShowLoading = true}) async {
Map<String, String> params = {
"uid": Provider.of<UserModel>(context, listen: false).user.openid,
// 'is_time': '0'
};
await couponProvider.getCustomerActivity(context, params,
isShowLoading: isShowLoading);
}
///修改活动信息
_setCustomerActivity(int index) async {
Map<String, String> params = {
"id": couponProvider.couponList[index].id,
"status": couponProvider.couponList[index].isOpenBool ? '1' : '0'
};
bool isSuccess = await couponProvider.setCustomerActivity(context, params,
isShowLoading: false);
print(isSuccess);
_couponNetworkData(isShowLoading: false);
// if (isSuccess) {
// couponProvider.notifyListeners();
// } else {
// couponProvider.couponList[index].isOpenBool =
// !couponProvider.couponList[index].isOpenBool;
// couponProvider.notifyListeners();
// }
}
@override
void initState() {
// TODO: implement initState
super.initState();
WidgetsBinding.instance.addPostFrameCallback((_) {
_couponNetworkData();
});
// bus.on("refresh_coupon_list", (arg) {
// _couponNetworkData();
// });
}
@override
void dispose() {
EventBus().emit('changeStatusColor');
// bus.off("refresh_coupon_list");
super.dispose();
}
@override
Widget build(BuildContext context) {
couponProvider = Provider.of<CouponProvider>(context, listen: true);
return Scaffold(
backgroundColor: MyColours.color_fefefe,
appBar: SystemAppBar('线上券', rightImgName: '历史券', onTap: () {
if (widget.needRefrsh) {
EventBus().emit('refresh_coupon_invitation');
} else {
EventBus().emit('changeStatusColor');
}
Navigator.of(context).pop();
}, onTapRight: () {
NavigatorUtil.goCouponHistoryPage(context);
}),
body: WillPopScope(
onWillPop: () {
if (widget.needRefrsh) {
EventBus().emit('refresh_coupon_invitation');
} else {
EventBus().emit('changeStatusColor');
}
Navigator.of(context).pop();
},
child: Column(
children: [
Expanded(child: Consumer<CouponProvider>(
builder: (context, model, _) {
if (model.pageState != PageState.Success) {
return ExceptionPage(
pageState: model.pageState,
callback: () {
// offset = 0;
// getMessage(showLoading: true);
_couponNetworkData();
},
emptyMsg: "暂时没有列表信息哦",
emptyImg: "empty_search",
showMsg: "加载中，请稍后...",
);
} else {
return EasyRefresh.custom(
controller: _controller,
shrinkWrap: true,
slivers: [
SliverList(
delegate: SliverChildBuilderDelegate(
(BuildContext context, int index) {
return Container(
margin:
EdgeInsets.all(ScreenUtil().setWidth(40)),
padding:
EdgeInsets.all(ScreenUtil().setWidth(30)),
color: MyColours.color_F0F0F0,
child: Text(
'使用说明：需在结账前出示优惠券二维码，店内工作人员微信扫码核销。超过有效期的券，会自动作废并移出列表。优惠券不可找零、兑现。',
style: TextStyle(
color: MyColours.color_666666,
fontSize: ScreenUtil().setSp(24),
),
strutStyle: StrutStyle(
forceStrutHeight: true,
height: 1,
leading: 0.3),
));
}, childCount: 1),
),
SliverList(
delegate: SliverChildBuilderDelegate(
(BuildContext context, int index) {
return CouponItem(
from: 'quan',
couponSonModel:
couponProvider.couponList[index],
showBtn: true,
onPressedSwich: () {
couponProvider.couponList[index].isOpenBool =
!couponProvider
.couponList[index].isOpenBool;
_setCustomerActivity(index);
},
onPressed: () {
NavigatorUtil.goCouponDetailPage(context,
couponProvider.couponList[index]);
},
);
}, childCount: couponProvider.couponList.length),
)
],
// onRefresh: () async {
// // offset = 0;
// // getMessage(showLoading: false);
// },
// onLoad: () async {
// // offset++;
// // getMessage(showLoading: false);
// },
);
}
},
)),
VEmptyView(20),
Padding(
padding: EdgeInsets.fromLTRB(ScreenUtil().setWidth(40), 0,
ScreenUtil().setWidth(40), ScreenUtil().setWidth(40)),
child: RoundButton(
onPressed: () async {
bool needRefresh =
await NavigatorUtil.goCouponEditPage(context);
print(needRefresh);
if (needRefresh != null && needRefresh) {
//刷新页面数据
// _controller.callRefresh();
_couponNetworkData();
}
},
text: '创建新券',
fontSize: 34,
isBold: false,
height: ScreenUtil().setWidth(80),
width: double.infinity,
radius: ScreenUtil().setWidth(10),
))
],
)));
}
}