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FLUT-6532 - [Others] Fixed the map animation sample issue #300

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Merged
merged 1 commit into from
Jun 2, 2022
Merged

FLUT-6532 - [Others] Fixed the map animation sample issue #300

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150 changes: 79 additions & 71 deletions Flutter/maps/vector-layers/arc-layer.md
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Original file line number Diff line number Diff line change
Expand Up @@ -529,77 +529,85 @@ By default, there will not be any animation.
{% tabs %}
{% highlight Dart %}

late MapZoomPanBehavior zoomPanBehavior;
late MapShapeSource dataSource;
late List<DataModel> data;
late AnimationController animationController;
late Animation animation;

@override
void initState() {
data = <DataModel>[
DataModel(MapLatLng(28.6139, 77.2090), MapLatLng(39.9042, 116.4074)),
DataModel(MapLatLng(28.7041, 77.1025), MapLatLng(31.2304, 121.4737)),
DataModel(MapLatLng(28.7041, 77.1025), MapLatLng(23.1291, 113.2644)),
DataModel(MapLatLng(28.7041, 77.1025), MapLatLng(22.3193, 114.1694)),
DataModel(MapLatLng(19.0760, 72.8777), MapLatLng(22.3193, 114.1694)),
DataModel(MapLatLng(22.3193, 114.1694), MapLatLng(13.0827, 80.2707)),
];

dataSource = MapShapeSource.asset(
'assets/world_map.json',
shapeDataField: 'continent',
);
zoomPanBehavior = MapZoomPanBehavior(
zoomLevel: 4,
focalLatLng: MapLatLng(22.9734, 90.6569),
);

animationController = AnimationController(
duration: Duration(seconds: 3),
vsync: this,
);
animation = CurvedAnimation(
parent: animationController,
curve: Curves.easeInOut,
);
animationController.forward(from: 0);
super.initState();
}

@override
void dispose() {
animationController.dispose();
super.dispose();
}

@override
Widget build(BuildContext context) {
return Scaffold(
body: SfMaps(
layers: [
MapShapeLayer(
source: dataSource,
sublayers: [
MapArcLayer(
arcs: List<MapArc>.generate(
data.length,
(int index) {
return MapArc(
from: data[index].from,
to: data[index].to,
);
},
).toSet(),
color: Colors.blue,
animation: animation,
),
],
zoomPanBehavior: zoomPanBehavior,
),
],
),
);
class AnimationSample extends StatefulWidget {
const AnimationSample({Key? key}) : super(key: key;
@override
State<AnimationSample> createState() => _AnimationSampleState();
}

class _AnimationSampleState extends State<AnimationSample> with TickerProviderStateMixin {
late MapZoomPanBehavior zoomPanBehavior;
late MapShapeSource dataSource;
late List<DataModel> data;
late AnimationController animationController;
late Animation<double> animation;

@override
void initState() {
data = <DataModel>[
DataModel(MapLatLng(28.6139, 77.2090), MapLatLng(39.9042, 116.4074)),
DataModel(MapLatLng(28.7041, 77.1025), MapLatLng(31.2304, 121.4737)),
DataModel(MapLatLng(28.7041, 77.1025), MapLatLng(23.1291, 113.2644)),
DataModel(MapLatLng(28.7041, 77.1025), MapLatLng(22.3193, 114.1694)),
DataModel(MapLatLng(19.0760, 72.8777), MapLatLng(22.3193, 114.1694)),
DataModel(MapLatLng(22.3193, 114.1694), MapLatLng(13.0827, 80.2707)),
];

dataSource = MapShapeSource.asset(
'assets/world_map.json',
shapeDataField: 'continent',
);
zoomPanBehavior = MapZoomPanBehavior(
zoomLevel: 4,
focalLatLng: MapLatLng(22.9734, 90.6569),
);

animationController = AnimationController(
duration: Duration(seconds: 3),
vsync: this,
);
animation = CurvedAnimation(
parent: animationController,
curve: Curves.easeInOut,
);
animationController.forward(from: 0);
super.initState();
}

@override
void dispose() {
animationController.dispose();
super.dispose();
}

@override
Widget build(BuildContext context) {
return Scaffold(
body: SfMaps(
layers: [
MapShapeLayer(
source: dataSource,
sublayers: [
MapArcLayer(
arcs: List<MapArc>.generate(
data.length,
(int index) {
return MapArc(
from: data[index].from,
to: data[index].to,
);
},
).toSet(),
color: Colors.blue,
animation: animation,
),
],
zoomPanBehavior: zoomPanBehavior,
),
],
),
);
}
}

class DataModel {
Expand Down