Flutter 颤振firebase I/BufferBuffer:插槽0已丢弃，句柄=0x79c7c5ec00
我正在使用flatter、firebase和googleapi创建一个uber克隆，这是我的主页，在这里我使用googlemapapi呈现googlemap 它起作用了，但在控制台中，它呈现出这样的基调：Flutter 颤振firebase I/BufferBuffer:插槽0已丢弃，句柄=0x79c7c5ec00,flutter,google-maps,dart,firebase-realtime-database,mobile,Flutter,Google Maps,Dart,Firebase Realtime Database,Mobile,我正在使用flatter、firebase和googleapi创建一个uber克隆，这是我的主页，在这里我使用googlemapapi呈现googlemap 它起作用了，但在控制台中，它呈现出这样的基调： I/BufferQueueProducer（4851）：[SurfaceTexture-0-4851-0]（此：0x79990db000，id:0，api:1，p:471，c:-1）队列缓冲区：插槽0被丢弃，句柄=0x79c7c5ec00 这是主页的代码。dart： import 'dart:
I/BufferQueueProducer（4851）：[SurfaceTexture-0-4851-0]（此：0x79990db000，id:0，api:1，p:471，c:-1）队列缓冲区：插槽0被丢弃，句柄=0x79c7c5ec00主页的代码。dartimport 'dart:async';
import 'package:firebase_database/firebase_database.dart';
import 'package:flutter/material.dart';
import 'package:flutter_polyline_points/flutter_polyline_points.dart';
import 'package:geolocator/geolocator.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';
import 'package:provider/provider.dart';
import 'package:uber_clone/BrandColors.dart';
import 'package:uber_clone/DataModels/DirectionDetail.dart';
import 'package:uber_clone/GlobalVariables.dart';
import 'package:uber_clone/Helpers/HelperMethods.dart';
import 'package:uber_clone/Providers/AppData.dart';
import 'package:uber_clone/Screens/SearchPage.dart';
import 'package:uber_clone/Widgets/CustomedBackButton.dart';
import 'package:uber_clone/Widgets/DrawerListItem.dart';
import 'package:uber_clone/Widgets/TaxiButton.dart';
class MainPage extends StatefulWidget {
static const String id = 'main';
@override
_MainPageState createState() => _MainPageState();
}
class _MainPageState extends State<MainPage> with TickerProviderStateMixin {
GlobalKey<ScaffoldState> scaffoldKey = new GlobalKey<ScaffoldState>();
Completer<GoogleMapController> _controller = Completer();
GoogleMapController mapController;
Position currentPosition;
double rideDetailSheetHeight = 0;
double searchSheetHeight = 300;
double requestRideSheetHeight = 0;
double mapPaddingBottom = 300;
List<LatLng> polylineCoordinates = [];
Set<Polyline> _polylines = {};
Set<Marker> _Markers = {};
Set<Circle> _Circles = {};
DirectionDetail tripDirectionDetails;
AnimationController controller;
@override
void initState() {
controller = AnimationController(
vsync: this,
duration: const Duration(seconds: 5),
);
controller.repeat(reverse: true);
super.initState();
print('int the init');
HelperMethods.getCurrentUserInfo();
}
@override
void dispose() {
controller.dispose();
super.dispose();
}
void setupPositionLocator() async {
Position position = await Geolocator.getCurrentPosition(
desiredAccuracy: LocationAccuracy.high);
currentPosition = position;
LatLng pos = LatLng(position.latitude, position.longitude);
CameraPosition cp = new CameraPosition(target: pos, zoom: 14);
mapController.animateCamera(CameraUpdate.newCameraPosition(cp));
String address =
await HelperMethods.findCordinateAddress(position, context);
}
Future<void> getDirection() async {
// logic here is not important
}
void showDetailSheet() async {
// logic here is not important
}
void createRideRequest() {
// logic here is not important
}
void backToSeach() {
// logic here is not important
}
void cancelRideRequest() {
logic here is not important
}
@override
Widget build(BuildContext context) {
return Scaffold(
key: scaffoldKey,
drawer: Container(
width: 250,
color: Colors.white,
child: Drawer(
child: ListView(
padding: EdgeInsets.all(0),
children: <Widget>[
Container(
color: Colors.white,
height: 160,
child: DrawerHeader(
decoration: BoxDecoration(color: Colors.white),
child: Row(
children: <Widget>[
Image.asset(
'images/user_icon.png',
height: 60,
width: 60,
),
SizedBox(
width: 15,
),
Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text(
currentUserInfo.fullName,
style: TextStyle(
fontSize: 20, fontFamily: 'Brand-Bold'),
),
SizedBox(
height: 5,
),
Text('View Profile')
],
)
],
),
)),
SizedBox(
height: 10,
),
DrawerListItem(
icon: Icons.card_giftcard,
title: currentUserInfo.phone,
),
DrawerListItem(
icon: Icons.card_giftcard,
title: 'Free Rides',
),
DrawerListItem(
icon: Icons.credit_card,
title: 'Payments',
),
DrawerListItem(icon: Icons.history, title: 'Ride History'),
DrawerListItem(
icon: Icons.contact_support,
title: 'Support',
),
DrawerListItem(
icon: Icons.info,
title: 'About',
)
],
),
),
),
body: Stack(
children: <Widget>[
GoogleMap(
padding: EdgeInsets.only(bottom: mapPaddingBottom),
mapType: MapType.normal,
myLocationButtonEnabled: true,
initialCameraPosition: googlePlex,
myLocationEnabled: true,
zoomGesturesEnabled: true,
zoomControlsEnabled: true,
markers: _Markers,
circles: _Circles,
polylines: _polylines,
onMapCreated: (GoogleMapController controller) async {
_controller.complete(controller);
mapController = controller;
setupPositionLocator();
},
),
/// Open Drawer Button
Positioned(
top: 60,
left: 20,
child: GestureDetector(
onTap: () {
scaffoldKey.currentState.openDrawer();
},
child: Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(20),
boxShadow: [
BoxShadow(
color: Colors.black26,
blurRadius: 5.0,
spreadRadius: 0.5,
offset: Offset(0.7, 0.7))
]),
child: CircleAvatar(
backgroundColor: Colors.white,
radius: 20,
child: Icon(Icons.menu),
),
),
),
),
/// Menu Sheet
Positioned(
left: 0,
right: 0,
bottom: 0,
child: AnimatedSize(
vsync: this,
duration: new Duration(milliseconds: 150),
child: Container(
height: searchSheetHeight,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
topRight: Radius.circular(15),
topLeft: Radius.circular(15)),
boxShadow: [
BoxShadow(
color: Colors.black26,
blurRadius: 15.0,
spreadRadius: 0.5,
offset: Offset(0.7, 0.7))
]),
child: Padding(
padding: EdgeInsets.symmetric(horizontal: 24, vertical: 18),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
SizedBox(
height: 5,
),
Text(
'Nice to meet you!',
style: TextStyle(fontSize: 10),
),
Text(
'Where are you going?',
style:
TextStyle(fontSize: 18, fontFamily: 'Brand-Bold'),
),
SizedBox(
height: 20,
),
GestureDetector(
onTap: () async {
var response = await Navigator.push(
context,
MaterialPageRoute(
builder: (context) => SearchPage()));
if (response == 'getDirection') {
await getDirection();
showDetailSheet();
}
},
child: Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(10.0),
boxShadow: [
BoxShadow(
color: Colors.black26,
blurRadius: 5.0,
spreadRadius: 0.2,
offset: Offset(0.4, 0.4))
]),
child: Padding(
padding: EdgeInsets.all(12.0),
child: Row(
children: <Widget>[
Icon(
Icons.search,
color: Colors.blueAccent,
),
SizedBox(
width: 10,
),
Text('Search Destination')
],
),
),
),
),
SizedBox(
height: 10,
),
Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(10.0),
boxShadow: [
BoxShadow(
color: Colors.black26,
blurRadius: 5.0,
spreadRadius: 0.2,
offset: Offset(0.4, 0.4))
]),
child: Padding(
padding: EdgeInsets.all(12.0),
child: Row(
children: <Widget>[
Icon(
Icons.home,
color: BrandColors.colorDimText,
),
SizedBox(
width: 10,
),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text((Provider.of<AppData>(context)
.pickupAddress !=
null)
? Provider.of<AppData>(context)
.pickupAddress
.placeName
: 'Add Home'),
SizedBox(
height: 3,
),
Text(
'Your residential address',
style: TextStyle(
fontSize: 11,
color: BrandColors.colorDimText),
)
],
)
],
),
),
),
SizedBox(
height: 10,
),
Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(10.0),
boxShadow: [
BoxShadow(
color: Colors.black26,
blurRadius: 5.0,
spreadRadius: 0.2,
offset: Offset(0.4, 0.4))
]),
child: Padding(
padding: EdgeInsets.all(12.0),
child: Row(
children: <Widget>[
Icon(
Icons.work,
color: BrandColors.colorDimText,
),
SizedBox(
width: 10,
),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text('Add Work'),
SizedBox(
height: 3,
),
Text(
'Your office address',
style: TextStyle(
fontSize: 11,
color: BrandColors.colorDimText),
)
],
)
],
),
),
)
],
),
),
),
),
),
/// RideDetail Sheet
Positioned(
left: 0,
right: 0,
bottom: 0,
child: AnimatedSize(
vsync: this,
duration: new Duration(milliseconds: 150),
child: Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(15),
topRight: Radius.circular(15)),
boxShadow: [
BoxShadow(
color: Colors.black26,
blurRadius: 15.0,
spreadRadius: 0.5,
offset: Offset(0.7, 0.7))
]),
height: rideDetailSheetHeight,
child: Column(
children: <Widget>[
Container(
child: Padding(
padding: EdgeInsets.symmetric(horizontal: 16),
child: Row(
children: <Widget>[
Image.asset(
'images/taxi.png',
height: 70,
width: 70,
),
SizedBox(
width: 16,
),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text(
'Taxi',
style: TextStyle(
fontSize: 18, fontFamily: 'Brand-Bold'),
),
Text(
(tripDirectionDetails != null)
? tripDirectionDetails.distanceText
: '',
style: TextStyle(
fontSize: 16,
color: BrandColors.colorTextLight),
)
],
),
Expanded(child: Container()),
Text(
(tripDirectionDetails != null)
? '\$${HelperMethods.estimateFares(tripDirectionDetails)}'
: '',
style: TextStyle(
fontSize: 18, fontFamily: 'Brand-Bold'),
)
],
),
),
),
SizedBox(
height: 22,
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 16.0),
child: Row(
children: <Widget>[
Icon(
Icons.monetization_on,
size: 18,
color: BrandColors.colorTextLight,
),
SizedBox(
width: 16,
),
Text('Cash'),
SizedBox(
width: 5,
),
Icon(
Icons.keyboard_arrow_down,
color: BrandColors.colorTextLight,
size: 16,
)
],
),
),
SizedBox(
height: 22,
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 12.0),
child: TaxiButton(
title: 'REQUEST CAB',
color: BrandColors.colorAccent,
onPressed: () => createRideRequest()),
),
SizedBox(
height: 22,
),
CustomedBackButton(
onTap: () => backToSeach(), text: 'back to search')
],
),
),
)),
/// Request Cab Sheet
Positioned(
left: 0,
right: 0,
bottom: 0,
child: AnimatedSize(
vsync: this,
duration: new Duration(milliseconds: 150),
child: Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(15),
topRight: Radius.circular(15)),
boxShadow: [
BoxShadow(
color: Colors.black26,
blurRadius: 15.0,
spreadRadius: 0.5,
offset: Offset(0.7, 0.7))
]),
height: requestRideSheetHeight,
child: Container(
child: Padding(
padding: const EdgeInsets.all(12.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Padding(
padding: const EdgeInsets.symmetric(
horizontal: 12, vertical: 8),
child: LinearProgressIndicator(
value: controller.value,
valueColor: new AlwaysStoppedAnimation<Color>(
BrandColors.colorTextSemiLight),
backgroundColor: Colors.black12,
),
),
Text(
'Requesting a Ride ...',
style: TextStyle(
fontSize: 22,
fontFamily: 'Brand-Bold',
color: BrandColors.colorTextLight),
),
SizedBox(
height: 22,
),
CustomedBackButton(
onTap: () => cancelRideRequest(),
text: 'cancel ride')
],
),
),
),
)))
],
),
);
}
}
导入'dart:async'；
导入“package:firebase_database/firebase_database.dart”；
进口“包装：颤振/材料.省道”；
导入“包：颤振多段线点/颤振多段线点.省道”；
导入“包：地理定位器/地理定位器.dart”；
导入“包：google_-maps_-flatter/google_-maps_-flatter.dart”；
导入“包：provider/provider.dart”；
导入“package:uber_clone/BrandColors.dart”；
导入“package:uber_clone/DataModels/DirectionDetail.dart”；
导入“package:uber_clone/GlobalVariables.dart”；
导入“package:uber_clone/Helpers/HelperMethods.dart”；
导入“包：uber_clone/Providers/AppData.dart”；
导入“package:uber_clone/Screens/SearchPage.dart”；
导入“package:uber_clone/Widgets/CustomedBackButton.dart”；
导入“package:uber_clone/Widgets/DrawerListItem.dart”；
导入“package:uber_clone/Widgets/TaxiButton.dart”；
类MainPage扩展了StatefulWidget{
静态常量字符串id='main'；
@凌驾
_MainPageState createState（）=>\u MainPageState（）；
}
类_MainPageState使用TickerProviderStateMixin扩展状态{
GlobalKey scaffoldKey=新的GlobalKey（）；
Completer _controller=Completer（）；
谷歌地图控制器；
位置当前位置；
双脊尾板高度=0；
双倍搜索高度=300；
double-requests-height=0；
双mapPaddingBottom=300；
列出多段线坐标=[]；
集合_polylines={}；
设置_标记={}；
集合_圆={}；
方向详细信息tripDirectionDetails；
动画控制器；
@凌驾
void initState（）{
控制器=动画控制器(
vsync:这个,，
持续时间：常数持续时间（秒数：5），
);
控制器。重复（反向：真）；
super.initState（）；
打印（'int the init'）；
HelperMethods.getCurrentUserInfo（）；
}
@凌驾
无效处置（）{
controller.dispose（）；
super.dispose（）；
}
无效setupPositionLocator（）异步{
位置=等待地理定位器。getCurrentPosition(
所需精度：定位精度高）；
当前位置=位置；
LatLng pos=LatLng（位置、纬度、位置、经度）；
CameraPosition cp=新的CameraPosition（目标：位置，缩放：14）；
mapController.animateCamera（CameraUpdate.newCameraPosition（cp））；
字符串地址=
等待帮助方法。查找协调地址（位置、上下文）；
}
Future getDirection（）异步{
//这里的逻辑并不重要
}
void showtailsheet（）异步{
//这里的逻辑并不重要
}
void createRideRequest（）{
//这里的逻辑并不重要
}
void backToSeach（）{
//这里的逻辑并不重要
}
作废取消请求（）{
这里的逻辑并不重要
}
@凌驾
小部件构建（构建上下文）{
返回脚手架(
钥匙：脚手架钥匙，
抽屉：集装箱(
宽度：250，
颜色：颜色，白色，
孩子：抽屉(
子：ListView(
填充：边缘集。全部（0），
儿童：[
容器(
颜色：颜色，白色，
身高：160，
儿童：抽屉阅读器(
装饰：盒子装饰（颜色：彩色。白色），
孩子：排(
儿童：[
影像资产(
“images/user_icon.png”，
身高：60，
宽度：60，
),
大小盒子(
宽度：15，
),
纵队(
mainAxisAlignment:mainAxisAlignment.center，
crossAxisAlignment:crossAxisAlignment.start，
儿童：[
正文(
currentUserInfo.fullName，
样式：TextStyle(
fontSize:20，fontFamily:“品牌粗体”），
),
大小盒子(
身高:5,，
),
文本（“视图配置文件”）
],
)
],
),
)),
大小盒子(
身高：10，
),
抽屉式(
图标：Icons.card\u giftcard，
标题：currentUserInfo.phone，
),
抽屉式(
图标：Icons.card\u giftcard，
标题：“免费乘车”，
),
抽屉式(
icon:Icons.credit_卡，
标题：“付款”，
),
DroperListItem（图标：Icons.history，标题：“骑行历史”），
抽屉式(
icon:Icons.contact_支持，
标题:"支持",，
),
抽屉式(
icon:Icons.info，
标题:"关于",，
)
],
),
),
),
主体：堆栈(
儿童：[
谷歌地图(
填充：仅限边集（底部：mapPaddingBottom），
mapType:mapType.normal，
myLocationButtonEnabled:正确，
initialCameraPosition:googlePlex，
myLocationEnabled:对，
zoomGesturesEnabled:对，
ZoomControl启用：对，
标记：_标记，