private async Task GetSampleDataAsync()
{
if (this._groups.Count != 0)
{
return;
}
Uri dataUri = new Uri("ms-appx:///DataModel/SampleData.json");
StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(dataUri);
string jsonText = await FileIO.ReadTextAsync(file);
JsonObject jsonObject = JsonObject.Parse(jsonText);
JsonArray jsonArray = jsonObject["PointsOfInterest"].GetArray();
foreach (JsonValue groupValue in jsonArray)
{
JsonObject groupObject = groupValue.GetObject();
IJsonValue shapeValue;
List <BasicGeoposition> shapeList;
Geopath shapePath = null;
if (groupObject.TryGetValue("Shape", out shapeValue))
{
//JsonObject shapeObject = shapeValue.GetObject();
string shape = shapeValue.GetString();
if (PathParser.TryParseEncodedValue(shape, out shapeList))
{
shapePath = new Geopath(shapeList);
}
}
IJsonValue bestMapViewBoxValue;
List <BasicGeoposition> bestMapViewBoxList = new List <BasicGeoposition>();
GeoboundingBox bestMapViewBox = null;
if (groupObject.TryGetValue("BestMapViewBox", out bestMapViewBoxValue))
{
foreach (JsonValue itemValue in bestMapViewBoxValue.GetArray())
{
JsonObject itemObject = itemValue.GetObject();
IJsonValue locationValue = itemObject["location"];
JsonObject locationObject = locationValue.GetObject();
BasicGeoposition location = new BasicGeoposition {
Latitude = locationObject["lat"].GetNumber(), Longitude = locationObject["lng"].GetNumber()
};
bestMapViewBoxList.Add(location);
}
bestMapViewBox = GeoboundingBox.TryCompute(bestMapViewBoxList);
}
SampleDataGroup group = new SampleDataGroup(groupObject["UniqueId"].GetString(),
groupObject["Title"].GetString(),
groupObject["Subtitle"].GetString(),
groupObject["ImagePath"].GetString(),
groupObject["Description"].GetString(),
bestMapViewBox,
shapePath);
foreach (JsonValue itemValue in groupObject["Items"].GetArray())
{
JsonObject itemObject = itemValue.GetObject();
IJsonValue geometryValue;
Geopoint location = null;
string address = null;
if (itemObject.TryGetValue("geometry", out geometryValue))
{
JsonObject geometryObject = geometryValue.GetObject();
IJsonValue locationValue = geometryObject["location"];
JsonObject locationObject = locationValue.GetObject();
location = new Geopoint(new BasicGeoposition {
Latitude = locationObject["lat"].GetNumber(), Longitude = locationObject["lng"].GetNumber()
});
}
IJsonValue addressValue = null;
if (itemObject.TryGetValue("formatted_address", out addressValue))
{
address = addressValue.GetString();
}
group.Items.Add(new SampleDataItem(itemObject["UniqueId"].GetString(),
itemObject["Title"].GetString(),
itemObject["Subtitle"].GetString(),
itemObject["ImagePath"].GetString(),
itemObject["Description"].GetString(),
itemObject["Content"].GetString(),
location,
address));
}
this.Groups.Add(group);
}
}