coupon_poster_page.dart
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import 'dart:io';
import 'dart:ui';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/services.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:image_gallery_saver/image_gallery_saver.dart';
import 'package:one_key/provider/user_model.dart';
import 'package:one_key/utils/utils.dart';
import 'package:one_key/widgets/system_app_bar.dart';
import 'package:one_key/widgets/v_empty_view.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:provider/provider.dart';
import '../../models/coupon_model.dart';
import '../../models/user.dart';
import '../../provider/base_info_provider.dart';
import '../../res/colors.dart';
import '../../utils/screen_util.dart';
import '../../utils/share_helper.dart';
import '../../widgets/h_empty_view.dart';
import '../../widgets/loading.dart';
import '../../widgets/round_button.dart';
import 'dart:ui' as ui;
/**
* 优惠券分享海报
*/
class CouponPosterPage extends StatefulWidget {
final String id; //优惠券ID
final CouponUse use;
final CouponSunModel couponSunModel;
CouponPosterPage({Key key, this.id, this.use, this.couponSunModel})
: super(key: key);
@override
_CouponPosterPageState createState() => _CouponPosterPageState();
}
class _CouponPosterPageState extends State<CouponPosterPage> {
String managerName = '';
// 全局key
final GlobalKey _rootWidgetKey = GlobalKey();
final GlobalKey globalKey = GlobalKey();
@override
void initState() {
// TODO: implement initState
super.initState();
WidgetsBinding.instance.addPostFrameCallback((_) {
// if (widget.idstr != null && widget.idstr != 'null') {
// _getCustomerActivityBaseinfo();
});
}
// _getCustomerActivityBaseinfo() async {
// BaseIndoProvider _baseIndoProvider =
// Provider.of<BaseIndoProvider>(context, listen: false);
// Map<String, String> params = {
// 'sellerid': Provider.of<UserModel>(context, listen: false).user.sellerid,
// "uid": Provider.of<UserModel>(context, listen: false).user.openid,
// };
// bool success =
// await _baseIndoProvider.getCustomerActivityBaseinfo(context, params);
// if (success) {
// managerName = _baseIndoProvider.baseInfoSunModel.name;
// }
// }
/// 截图
Future<Uint8List> _capturePng(
GlobalKey globalKey,
// {
// double pixelRatio = 2.0, //截屏的图片与原图的比例
// }
) async {
try {
RenderRepaintBoundary boundary =
globalKey.currentContext?.findRenderObject() as RenderRepaintBoundary;
double dpr = ui.window.devicePixelRatio; // 获取当前设备的像素比
var image = await boundary.toImage(pixelRatio: dpr);
ByteData byteData = await image.toByteData(format: ImageByteFormat.png);
Uint8List pngBytes = byteData?.buffer.asUint8List();
return pngBytes;
} catch (e) {
print(e);
}
return null;
}
@override
Widget build(BuildContext context) {
User user = Provider.of<UserModel>(context, listen: false).user;
String times = '营业时间：';
if (user.morning != "") {
times += user.morning;
}
if (user.noon != "") {
times += ' ${user.noon}';
}
if (user.night != "") {
times += ' ${user.night}';
}
String phone = user.sellerphone.replaceAll(',', ' ');
String address = '地址：' + user.sellerAddr;
String title = "${user.sellername}向您推荐一张优惠券";
String name = '';
if (widget.couponSunModel.isType == '1') {
//店铺优惠券
String price = widget.couponSunModel.price;
if (widget.use != null) {
if (widget.use.isCash) {
if (price == '0') {
title = '免费获取';
} else {
title = '仅需${price}元，获取';
}
// name = '${user.sellername}${widget.use.cash}元代金券';
name = '${widget.use.cash}元代金券';
} else if (widget.use.isDiscount) {
if (price == '0') {
title = '免费获取';
} else {
title = '仅需${price}元，获取';
}
name = '${widget.use.discount}折折扣券';
} else if (widget.use.isDish) {
if (price == '0') {
title = '免费获取';
} else {
title = '仅需${price}元，获取';
}
name = '${widget.couponSunModel.aname}';
}
}
} else {
// title = "${managerName}给您赠送${widget.couponSunModel.aname}";
// title = "${widget.couponSunModel.aname}";
name = "${widget.couponSunModel.aname}";
}
// double _height = w(64);
// Future.delayed(Duration(milliseconds: 200)).then((e) {
// _height = globalKey.currentContext.size.height;
// debugPrint('Height is ${context.size.height}');
// // setState(() {});
// });
return Scaffold(
appBar: SystemAppBar('优惠券详情'),
backgroundColor: MyColours.color_ffffff,
body: Column(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Expanded(
child: SingleChildScrollView(
child: RepaintBoundary(
key: _rootWidgetKey,
child: Container(
color: Colors.white,
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Stack(
// alignment: Alignment.bottomCenter,
clipBehavior: Clip.none,
children: [
user.sellerimage != null &&
user.sellerimage != ''
? CachedNetworkImage(
imageUrl: user.sellerimage,
width: double.infinity,
height: w(280),
fit: BoxFit.cover,
)
: Image.asset(
Utils.getImgPath('no_image'),
width: double.infinity,
height: w(280),
fit: BoxFit.cover,
),
Positioned(
bottom: -w(64),
child: Container(
key: globalKey,
width: ScreenUtil().screenWidth -
w(20) * 2,
// width: double.infinity,
// height: w(128),
padding: EdgeInsets.symmetric(
horizontal: w(10), vertical: w(18)),
margin: EdgeInsets.symmetric(
horizontal: w(20)),
decoration: BoxDecoration(
border: Border.all(
color: MyColours.color_E4461D,
width: w(1)),
color: Colors.white,
borderRadius:
BorderRadius.circular(r(8))),
child: Column(
// mainAxisSize: ,
// main
crossAxisAlignment:
CrossAxisAlignment.start,
children: [
Text(
user.sellername,
maxLines: 3,
overflow: TextOverflow.ellipsis,
style: TextStyle(
color: MyColours.color_E4461D,
fontSize: font(16),
fontWeight: FontWeight.bold),
),
VEmptyView(30),
Text(
times,
maxLines: 3,
overflow: TextOverflow.ellipsis,
style: TextStyle(
color: MyColours.color_515151,
fontSize: font(14),
),
),
VEmptyView(10),
RichText(
maxLines: 3,
text: TextSpan(
style: TextStyle(
fontSize: ScreenUtil()
.setSp(28),
),
children: [
TextSpan(
text: '电话：',
style: TextStyle(
fontSize:
font(14),
color: MyColours
.color_515151)),
TextSpan(
text: phone,
style: TextStyle(
overflow:
TextOverflow
.ellipsis,
fontSize:
font(14),
color: MyColours
.color_E4461D)),
])),
VEmptyView(10),
Row(
children: [
Text(
address,
maxLines: 10,
overflow:
TextOverflow.ellipsis,
style: TextStyle(
color:
MyColours.color_515151,
fontSize: font(14),
),
),
Image.asset(
Utils.getImgPath(
'location_orange'),
width: w(25),
)
],
),
],
),
))
],
),
VEmptyView(170),
Text(
title,
style: TextStyle(
fontSize: font(32),
color: MyColours.color_000000),
),
VEmptyView(30),
Padding(
padding:
EdgeInsets.symmetric(horizontal: w(20)),
child: Stack(
alignment: Alignment.center,
children: [
Image.asset(
Utils.getImgPath('coupon_bg')),
Positioned(
child: Padding(
padding: EdgeInsets.symmetric(
horizontal: w(20)),
child: Text(name,
textAlign: TextAlign.center,
overflow:
TextOverflow.ellipsis,
style: TextStyle(
fontSize: font(32),
color: MyColours
.color_ffffff))))
],
)),
// Padding(
// padding: EdgeInsets.symmetric(horizontal: w(20)),
// child: Row(
// children: [
// Image.asset(
// Utils.getImgPath('coupon_l'),
// height: w(100),
// ),
// HEmptyView(1),
// Expanded(
// child: Container(
// alignment: Alignment.center,
// constraints: BoxConstraints(minHeight: w(120)),
// decoration: BoxDecoration(
// color: Color.fromRGBO(252, 0, 0, 1)),
// child: Text(name,
// textAlign: TextAlign.center,
// style: TextStyle(
// fontSize: font(32),
// color: MyColours.color_ffffff)),
// )),
// HEmptyView(1),
// Image.asset(
// Utils.getImgPath('coupon_r'),
// // width: w(20),
// height: w(100),
// ),
// ],
// )),
VEmptyView(30),
if (widget.couponSunModel.liteQrcode != null)
CachedNetworkImage(
imageUrl: widget.couponSunModel.liteQrcode,
height: w(200),
),
if (widget.couponSunModel.liteQrcode != null)
VEmptyView(20),
if (widget.couponSunModel.liteQrcode != null)
Text('长按二维码识别领取',
textAlign: TextAlign.center,
overflow: TextOverflow.ellipsis,
style: TextStyle(
fontSize: font(16),
color: MyColours.color_000000)),
VEmptyView(60),
],
)))),
),
Container(
height: ScreenUtil().setWidth(91 * 2),
padding: EdgeInsets.only(
top: ScreenUtil().setWidth(16 * 2),
bottom: ScreenUtil().setWidth(35 * 2),
left: ScreenUtil().setWidth(23 * 2),
right: ScreenUtil().setWidth(23 * 2),
),
decoration: BoxDecoration(
color: MyColours.color_ffffff,
boxShadow: [
BoxShadow(
spreadRadius: ScreenUtil().setWidth(2),
color: Color.fromRGBO(0, 0, 0, 0.1),
offset: Offset(0, ScreenUtil().setWidth(-2)),
blurRadius: ScreenUtil().setWidth(8))
],
borderRadius: BorderRadius.only(
topLeft: Radius.circular(ScreenUtil().setWidth(16)),
topRight: Radius.circular(ScreenUtil().setWidth(16))),
),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
RoundButton(
text: '保存海报图片',
width: w(100),
gradientStart: MyColours.color_ffffff,
gradientEnd: MyColours.color_ffffff,
borderColor: MyColours.color_438E93,
textColor: MyColours.color_438E93,
height: ScreenUtil().setWidth(80),
radius: ScreenUtil().setWidth(14),
isBold: true,
fontSize: 28,
onPressed: () {
Utils.getPickPermission(context, () {
//获取截屏图像
//添加到图片数组中
Loading.showLoading(
context,
);
_capturePng(_rootWidgetKey).then((value) async {
if (value != null) {
print(value);
final result = await ImageGallerySaver.saveImage(
value,
quality: 100);
if (result != null) {
Utils.showToast("保存成功");
} else {
print('error');
Utils.showToast("保存失败");
// toast("");
}
Loading.hideLoading(context);
// setState(() {});
}
});
},
Platform.isIOS
? Permission.photos
: Permission.storage);
},
),
HEmptyView(30),
Expanded(
child: RoundButton(
text: '分享给客户',
height: ScreenUtil().setWidth(80),
radius: ScreenUtil().setWidth(14),
isBold: false,
fontSize: 28,
onPressed: () {
ShareHelper.onShareWx(
context,
boundaryKey: _rootWidgetKey,
);
},
),
)
],
))
],
));
}
}