private async void Initialize()
{
// Create a new map to display in the map view with a streets basemap.
MyMapView.Map = new Map(BasemapStyle.ArcGISStreets);
// Get the path to the downloaded mobile geodatabase (.geodatabase file).
string mobileGeodatabaseFilePath = GetMobileGeodatabasePath();
try
{
// Open the mobile geodatabase.
Geodatabase mobileGeodatabase = await Geodatabase.OpenAsync(mobileGeodatabaseFilePath);
// Get the 'Trailheads' geodatabase feature table from the mobile geodatabase.
GeodatabaseFeatureTable trailheadsGeodatabaseFeatureTable = mobileGeodatabase.GeodatabaseFeatureTable("Trailheads");
// Asynchronously load the 'Trailheads' geodatabase feature table.
await trailheadsGeodatabaseFeatureTable.LoadAsync();
// Create a feature layer based on the geodatabase feature table.
FeatureLayer trailheadsFeatureLayer = new FeatureLayer(trailheadsGeodatabaseFeatureTable);
// Add the feature layer to the operations layers collection of the map.
MyMapView.Map.OperationalLayers.Add(trailheadsFeatureLayer);
// Zoom the map to the extent of the feature layer.
await MyMapView.SetViewpointGeometryAsync(trailheadsFeatureLayer.FullExtent, 50);
}
catch (Exception e)
{
await Application.Current.MainPage.DisplayAlert("Error", e.ToString(), "OK");
}
}
private async void Initialize()
{
// Create a new map to display in the map view with a streets basemap.
_myMapView.Map = new Map(Basemap.CreateStreets());
// Get the path to the downloaded mobile geodatabase (.geodatabase file).
string mobileGeodatabaseFilePath = DataManager.GetDataFolder("2b0f9e17105847809dfeb04e3cad69e0", "LA_Trails.geodatabase");
try
{
// Open the mobile geodatabase.
Geodatabase mobileGeodatabase = await Geodatabase.OpenAsync(mobileGeodatabaseFilePath);
// Get the 'Trailheads' geodatabase feature table from the mobile geodatabase.
GeodatabaseFeatureTable trailheadsGeodatabaseFeatureTable = mobileGeodatabase.GeodatabaseFeatureTable("Trailheads");
// Asynchronously load the 'Trailheads' geodatabase feature table.
await trailheadsGeodatabaseFeatureTable.LoadAsync();
// Create a feature layer based on the geodatabase feature table.
FeatureLayer trailheadsFeatureLayer = new FeatureLayer(trailheadsGeodatabaseFeatureTable);
// Add the feature layer to the operations layers collection of the map.
_myMapView.Map.OperationalLayers.Add(trailheadsFeatureLayer);
// Zoom the map to the extent of the feature layer.
await _myMapView.SetViewpointGeometryAsync(trailheadsFeatureLayer.FullExtent, 50);
}
catch (Exception e)
{
new UIAlertView("Error", e.ToString(), (IUIAlertViewDelegate)null, "OK", null).Show();
}
}
private async void Initialize()
{
// Create a new map to display in the map view with a streets basemap.
_myMapView.Map = new Map(Basemap.CreateStreets());
// Get the path to the downloaded mobile geodatabase (.geodatabase file).
string mobileGeodatabaseFilePath = GetMobileGeodatabasePath();
try
{
// Open the mobile geodatabase.
Geodatabase mobileGeodatabase = await Geodatabase.OpenAsync(mobileGeodatabaseFilePath);
// Get the 'Trailheads' geodatabase feature table from the mobile geodatabase.
GeodatabaseFeatureTable trailheadsGeodatabaseFeatureTable = mobileGeodatabase.GeodatabaseFeatureTable("Trailheads");
// Asynchronously load the 'Trailheads' geodatabase feature table.
await trailheadsGeodatabaseFeatureTable.LoadAsync();
// Create a feature layer based on the geodatabase feature table.
FeatureLayer trailheadsFeatureLayer = new FeatureLayer(trailheadsGeodatabaseFeatureTable);
// Add the feature layer to the operations layers collection of the map.
_myMapView.Map.OperationalLayers.Add(trailheadsFeatureLayer);
// Zoom the map to the extent of the feature layer.
await _myMapView.SetViewpointGeometryAsync(trailheadsFeatureLayer.FullExtent, 50);
}
catch (Exception e)
{
new AlertDialog.Builder(this).SetMessage(e.ToString()).SetTitle("Error").Show();
}
}
private async void Initialize()
{
// Create a new map to display in the map view with a streets basemap.
MyMapView.Map = new Map(Basemap.CreateStreets());
// Get the path to the downloaded mobile geodatabase (.geodatabase file).
string mobileGeodatabaseFilePath = GetMobileGeodatabasePath();
// Open the mobile geodatabase.
Geodatabase mobileGeodatabase = await Geodatabase.OpenAsync(mobileGeodatabaseFilePath);
// Get the 'Trailheads' geodatabase feature table from the mobile geodatabase.
GeodatabaseFeatureTable trailheadsGeodatabaseFeatureTable = mobileGeodatabase.GeodatabaseFeatureTable("Trailheads");
// Asynchronously load the 'Trailheads' geodatabase feature table.
await trailheadsGeodatabaseFeatureTable.LoadAsync();
// Create a feature layer based on the geodatabase feature table.
FeatureLayer trailheadsFeatureLayer = new FeatureLayer(trailheadsGeodatabaseFeatureTable);
// Add the feature layer to the operations layers collection of the map.
MyMapView.Map.OperationalLayers.Add(trailheadsFeatureLayer);
// Zoom the map to the extent of the feature layer.
await MyMapView.SetViewpointGeometryAsync(trailheadsFeatureLayer.FullExtent);
}
/// <summary>
/// Adds a SQLite geodatabase to the list of layers.
/// </summary>
/// <param name="pathToGeodatabase">the file to be loaded</param>
/// <returns>simply a marker indicating that things completed (true all good, false not all good)</returns>
public async Task <bool> AddSQLiteGeodatabaseAsync(string pathToGeodatabase)
{
bool allGood = true;
if (!this.HasLayerFileSource(pathToGeodatabase))
{
LayerFileSource lfs = new LayerFileSource();
lfs.SourceFile = pathToGeodatabase;
this.LayerFileSources.Add(lfs);
Geodatabase gdb = await Geodatabase.OpenAsync(pathToGeodatabase);
//
// Store the test layers.
//
foreach (GeodatabaseFeatureTable gft in gdb.GeodatabaseFeatureTables)
{
TesterLayer testLayer = new TesterLayer();
testLayer.FeatureTable = gft;
gft.PropertyChanged += GeodbFeatTab_PropertyChanged;
lfs.Children.Add(testLayer);
}
//
// Now load them all.
//
foreach (TesterLayer tl in lfs.Children)
{
GeodatabaseFeatureTable gtab = tl.FeatureTable;
try
{
await gtab.LoadAsync();
FeatureLayer fLayer = new FeatureLayer(gtab);
fLayer.PropertyChanged += FeatureLayer_PropertyChanged;
await fLayer.LoadAsync();
fLayer.LabelsEnabled = true;
this.Map.OperationalLayers.Add(fLayer);
tl.FeatureLayer = fLayer;
}
catch (Exception exc)
{
tl.LayerLoadException = exc;
allGood = false;
tl.LoadDone = true;
}
}
}
return(allGood);
}
private async void readGeoDatabase()
{
geodatabase = await Geodatabase.OpenAsync(mGeodatabasePath);
if (geodatabase.GeodatabaseFeatureTables.Count > 0)
{
// データベース内の最初のテーブルを取得する
mGdbFeatureTable = geodatabase.GeodatabaseFeatureTables.FirstOrDefault();
await mGdbFeatureTable.LoadAsync();
if (mGdbFeatureTable.LoadStatus == LoadStatus.Loaded)
{
myMap.OperationalLayers.RemoveAt(0);
mFeatureLayer = new FeatureLayer(mGdbFeatureTable);
myMap.OperationalLayers.Add(mFeatureLayer);
}
}
}