Flutter 颤振图像未显示在google marker上
我正在显示一个图像,而不是普通的标记,但不知道为什么它没有显示,我在其他地图页面上的操作方式和它的工作方式相同-意思是我在这里的操作方式与我在这一页面上的操作方式相同,它在这一页面上显示简单的红色标记,我可以看到我的图像标记 这是问题所在的页面代码Flutter 颤振图像未显示在google marker上,flutter,dart,Flutter,Dart,我正在显示一个图像,而不是普通的标记,但不知道为什么它没有显示,我在其他地图页面上的操作方式和它的工作方式相同-意思是我在这里的操作方式与我在这一页面上的操作方式相同,它在这一页面上显示简单的红色标记,我可以看到我的图像标记 这是问题所在的页面代码 class _TripRouteScreenState extends State<TripRouteScreen> { var start_currentPostion; var end_currentPostion; Bi
class _TripRouteScreenState extends State<TripRouteScreen> {
var start_currentPostion;
var end_currentPostion;
BitmapDescriptor pinLocationIcon;
Map<MarkerId, Marker> setmarkers = {};
List listMarkerIds = List(); // For store data of your markers
@override
void initState() {
super.initState();
setCustomMapPin();
working();
}
void setCustomMapPin() async {
pinLocationIcon = await BitmapDescriptor.fromAssetImage(
ImageConfiguration(devicePixelRatio: 2.5), 'images/pin.png');
}
working() {
double start_latitude = widget.data['start']['lat'].toDouble();
double start_longitude = widget.data['start']['lon'].toDouble();
double end_latitude = widget.data['end']['lat'].toDouble();
double end_longitude = widget.data['end']['lon'].toDouble();
start_currentPostion = LatLng(start_latitude, start_longitude);
end_currentPostion = LatLng(end_latitude, end_longitude);
setState(() {
MarkerId markerId1 = MarkerId("1");
MarkerId markerId2 = MarkerId("2");
listMarkerIds.add(markerId1);
listMarkerIds.add(markerId2);
Marker marker1 = Marker(
markerId: markerId1,
position: LatLng(start_latitude, start_longitude),
icon: pinLocationIcon,
);
Marker marker2 = Marker(
markerId: markerId2,
position: LatLng(end_latitude, end_longitude),
icon: pinLocationIcon, // you can change the color of marker
);
setmarkers[markerId1] =
marker1; // I Just added here markers on the basis of marker id
setmarkers[markerId2] = marker2;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
leading: GestureDetector(
onTap: () {
Navigator.pop(context);
},
child: Icon(Icons.arrow_back)),
centerTitle: true,
flexibleSpace: Container(
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage('images/nav.jpg'),
fit: BoxFit.cover,
),
),
),
backgroundColor: Colors.transparent,
title: Text(
'Route Location',
style: TextStyle(fontFamily: 'UbuntuBold'),
),
actions: [
Padding(
padding: const EdgeInsets.only(right: 15),
child: Icon(
Icons.notifications_none,
size: 33,
),
)
]),
body: GoogleMap(
mapType: MapType.normal,
initialCameraPosition: CameraPosition(
target: start_currentPostion,
zoom: 15,
),
markers: Set.of(setmarkers.values), // YOUR MARKS IN MAP
),
);
}
}
class\u TripRouteScreenState扩展状态{
var启动\当前位置;
var end_CurrentPosition;
位图描述符pinLocationIcon;
映射集标记={};
List listMarkerIds=List();//用于存储标记的数据
@凌驾
void initState(){
super.initState();
setCustomMapPin();
工作();
}
void setCustomMapPin()异步{
pinLocationIcon=等待BitmapDescriptor.fromAssetImage(
ImageConfiguration(devicePixelRatio:2.5),“images/pin.png”);
}
工作(){
双开始纬度=widget.data['start']['lat'].toDouble();
双起点经度=widget.data['start']['lon'].toDouble();
double end_latitude=widget.data['end']['lat'].toDouble();
双端经度=widget.data['end']['lon'].toDouble();
起始位置=纬度(起始纬度,起始经度);
end_CurrentPosition=纬度(end_纬度,end_经度);
设置状态(){
MarkerId markerId1=MarkerId(“1”);
MarkerId markerId2=MarkerId(“2”);
listMarkerIds.add(markerId1);
listMarkerIds.add(markerId2);
标记器1=标记器(
markerId:markerId1,
位置:LatLng(起始纬度,起始经度),
图标:pinLocationIcon,
);
Marker marker2=标记器(
markerId:markerId2,
位置:LatLng(纬度终点,经度终点),
icon:pinLocationIcon,//您可以更改标记的颜色
);
设置标记[markerId1]=
marker1;//我刚刚在这里添加了基于标记id的标记
setmarkers[markerId2]=marker2;
});
}
@凌驾
小部件构建(构建上下文){
返回脚手架(
appBar:appBar(
引导:手势检测器(
onTap:(){
Navigator.pop(上下文);
},
子:图标(图标。箭头返回)),
标题:对,
flexibleSpace:容器(
装饰:盒子装饰(
图像:装饰图像(
图像:AssetImage('images/nav.jpg'),
适合:BoxFit.cover,
),
),
),
背景颜色:颜色。透明,
标题:正文(
“路线位置”,
样式:TextStyle(fontFamily:“UbuntuBold”),
),
行动:[
填充物(
填充:仅限常量边集(右:15),
子:图标(
Icons.notices\u无,
尺码:33,
),
)
]),
正文:谷歌地图(
mapType:mapType.normal,
initialCameraPosition:CameraPosition(
目标:启动当前位置,
缩放:15,
),
markers:Set.of(setmarkers.values),//您在地图中的标记
),
);
}
}
这是在marker上显示图像的页面
class _MapScreenState extends State<MapScreen> {
Completer<GoogleMapController> _controller = Completer();
Set<Marker> _markers;
bool loading = true;
var currentPostion;
Map<MarkerId, Marker> markers = <MarkerId, Marker>{}; // CLASS MEMBER, MAP OF MARKS
BitmapDescriptor pinLocationIcon;
@override
void initState() {
super.initState();
_markers = Set<Marker>();
setCustomMapPin();
getImi();
}
void setCustomMapPin() async {
pinLocationIcon = await BitmapDescriptor.fromAssetImage(
ImageConfiguration(devicePixelRatio: 2.5),
'images/pin.png');
}
getImi() async {
final storage = new FlutterSecureStorage();
String imi = await storage.read(key: "imei");
print('showimi');
print(imi);
var map = new Map<String, dynamic>();
var url =
'http://api.igiinsurance.com.pk:8888/drive_api/location.php?imei=${imi}';
print(url);
http.Response res = await http.get(
url,
headers: <String, String>{
'token': 'c66026133e80d4960f0a5b7d418a4d08'
},
);
var data = json.decode(res.body.toString());
print(data);
if (data['status'].toString() == "success") {
print(data["data"]["location"]["lon"]);
print(data["data"]["location"]["gc"]["rd"]);
print(data["data"]["location"]["gc"]["sb"]);
var tit = data["data"]["location"]["gc"]["rd"];
var snip = data["data"]["location"]["gc"]["sb"];
print(data['lon']);
print(data['lat']);
double latitude = data['lat'].toDouble();
double longitude = data['lon'].toDouble();
print(longitude);
currentPostion = LatLng(latitude, longitude);
print(currentPostion);
final Map<String, Marker> _markers = {};
setState(() {
final MarkerId markerId = MarkerId('1');
// creating a new MARKER
final Marker marker = Marker(
markerId: markerId,
icon: pinLocationIcon,
position: currentPostion,
infoWindow: InfoWindow(title: tit, snippet: snip),
);
setState(() {
// adding a new marker to map
markers[markerId] = marker;
});
loading = false;
}
);
}
}
@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: AppBar(
leading: GestureDetector(
onTap: () {
Navigator.pop(context);
}, child: Icon(Icons.arrow_back)),
centerTitle: true,
flexibleSpace: Container(
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage('images/nav.jpg'),
fit: BoxFit.cover,
),
),
),
backgroundColor: Colors.transparent,
title: Text(
'My Car Location', style: TextStyle(fontFamily: 'UbuntuBold'),),
actions: [
Padding(
padding: const EdgeInsets.only(right: 15),
child: Icon(
Icons.notifications_none,
size: 33,
),
)
]),
body: loading == false ? GoogleMap(
mapType: MapType.normal,
initialCameraPosition: CameraPosition(
target: loading == false ? currentPostion : LatLng(1.0, 1.0),
zoom: 18,
),
markers: Set<Marker>.of(markers.values), // YOUR MARKS IN MAP
) :
Center(
child: SpinKitWave(color: Color(0xff00abb5), type: SpinKitWaveType.center))
);
}
class\u映射屏幕状态扩展状态{
Completer _controller=Completer();
设置标记;
布尔加载=真;
无功电流位置;
映射标记={};//类成员,标记映射
位图描述符pinLocationIcon;
@凌驾
void initState(){
super.initState();
_markers=Set();
setCustomMapPin();
getImi();
}
void setCustomMapPin()异步{
pinLocationIcon=等待BitmapDescriptor.fromAssetImage(
图像配置(devicePixelRatio:2.5),
“images/pin.png”);
}
getImi()异步{
最终存储=新存储();
字符串imi=wait storage.read(键:“imei”);
印刷品(‘showimi’);
打印(imi);
var map=newmap();
变量url=
'http://api.igiinsurance.com.pk:8888/drive_api/location.php?imei=${imi}';
打印(url);
Response res=wait http.get(
网址,
标题:{
“令牌”:“c66026133e80d4960f0a5b7d418a4d08”
},
);
var data=json.decode(res.body.toString());
打印(数据);
如果(数据['status'].toString()=“成功”){
打印(数据[“数据”][“位置”][“长度]);
打印(数据[“数据”][“位置”][“gc”][“rd”]);
打印(数据[“数据”][“位置”][“gc”][“sb”]);
var tit=data[“data”][“location”][“gc”][“rd”];
var snip=data[“data”][“location”][“gc”][“sb”];
打印(数据['lon']);
打印(数据['lat']);
双纬度=数据['lat'].toDouble();
双经度=数据['lon'].toDouble();
打印(经度);
CurrentPosition=纬度、经度;
打印(当前位置);
最终地图_标记={};
设置状态(){
最终MarkerId MarkerId=MarkerId('1');
//创建新标记
最终标记=标记(
马克里德:马克里德,
图标:pinLocationIcon,
职位:当前职位,
infoWindow:infoWindow(标题:tit,片段:snip),
);
设置状态(){
//向地图添加新标记
markers[markerId]=标记器;
});
加载=假;
}
);
}
}
@凌驾
小部件构建(构建上下文){
归还新脚手架(
appBar:appBar(
引导:手势检测器(
onTap:(){
Navigator.pop(上下文);
},子:图标(Icons.arrow_back)),
标题:对,
flexibleSpace:容器(
装饰:盒子装饰(
图像:装饰图像(
图像:AssetImage('images/nav.jpg'),
适合:BoxFit.cover,
),
),
),
背景颜色:颜色。透明,
标题:正文(
“我的汽车位置”,样式:TextStyle(fontFamily:“UbuntuBold”),
Marker marker1 = Marker(
markerId: markerId1,
position: LatLng(start_latitude, start_longitude),
icon: BitmapDescriptor.fromAsset("images/pin.png"),
);
Marker marker2 = Marker(
markerId: markerId2,
position: LatLng(end_latitude, end_longitude),
icon: BitmapDescriptor.fromAsset("images/pin.png"), // you can change the color of marker
);