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package com.mapbox.mapboxsdk.testapp.activity.maplayout;
import android.graphics.Color;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.FrameLayout;
import com.mapbox.geojson.Point;
import com.mapbox.geojson.Polygon;
import com.mapbox.mapboxsdk.geometry.LatLng;
import com.mapbox.mapboxsdk.geometry.LatLngBounds;
import com.mapbox.mapboxsdk.maps.MapView;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.maps.OnMapReadyCallback;
import com.mapbox.mapboxsdk.maps.Style;
import com.mapbox.mapboxsdk.style.layers.FillLayer;
import com.mapbox.mapboxsdk.style.sources.GeoJsonSource;
import com.mapbox.mapboxsdk.testapp.R;
import java.util.ArrayList;
import java.util.List;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.fillColor;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.fillOpacity;
/**
* Test activity showcasing restricting user gestures to a bounds around Iceland, almost worldview and IDL.
*/
public class LatLngBoundsForCameraActivity extends AppCompatActivity implements OnMapReadyCallback {
private static final String FILL_SOURCE_ID = "fill_source_id";
private static final String FILL_LAYER_ID = "fill_layer_id";
private static final LatLngBounds ICELAND_BOUNDS = new LatLngBounds.Builder()
.include(new LatLng(66.852863, -25.985652))
.include(new LatLng(62.985661, -12.626277))
.build();
private static final LatLngBounds ALMOST_WORLD_BOUNDS = new LatLngBounds.Builder()
.include(new LatLng(20.0, 170.0))
.include(new LatLng(-20, -170.0))
.build();
private static final LatLngBounds CROSS_IDL_BOUNDS = new LatLngBounds.Builder()
.include(new LatLng(20.0, 170.0))
.include(new LatLng(-20, 190.0))
.build();
private MapView mapView;
private MapboxMap mapboxMap;
private GeoJsonSource geoJsonSource;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_restricted_bounds);
mapView = findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
mapView.getMapAsync(this);
}
@Override
public void onMapReady(@NonNull MapboxMap mapboxMap) {
this.mapboxMap = mapboxMap;
geoJsonSource = new GeoJsonSource(FILL_SOURCE_ID);
FillLayer fillLayer = new FillLayer(FILL_LAYER_ID, FILL_SOURCE_ID)
.withProperties(
fillOpacity(0.25f),
fillColor(Color.RED)
);
mapboxMap.setStyle(new Style.Builder()
.fromUrl(Style.SATELLITE_STREETS)
.withSource(geoJsonSource)
.withLayer(fillLayer)
);
mapboxMap.setMinZoomPreference(2);
mapboxMap.getUiSettings().setFlingVelocityAnimationEnabled(false);
showCrosshair();
setupBounds(ICELAND_BOUNDS);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_bounds, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_action_allmost_world_bounds:
setupBounds(ALMOST_WORLD_BOUNDS);
return true;
case R.id.menu_action_cross_idl:
setupBounds(CROSS_IDL_BOUNDS);
return true;
}
return super.onOptionsItemSelected(item);
}
private void setupBounds(LatLngBounds bounds) {
mapboxMap.setLatLngBoundsForCameraTarget(bounds);
showBoundsArea(bounds);
}
private void showBoundsArea(LatLngBounds bounds) {
List<Point> points = new ArrayList<>();
points.add(convertToPoint(bounds.getNorthWest()));
points.add(convertToPoint(bounds.getNorthEast()));
points.add(convertToPoint(bounds.getSouthEast()));
points.add(convertToPoint(bounds.getSouthWest()));
points.add(convertToPoint(bounds.getNorthWest()));
List<List<Point>> polygon = new ArrayList<>();
polygon.add(points);
geoJsonSource.setGeoJson(Polygon.fromLngLats(polygon));
}
private Point convertToPoint(LatLng northWest) {
return Point.fromLngLat(northWest.getLongitude(), northWest.getLatitude());
}
private void showCrosshair() {
View crosshair = new View(this);
crosshair.setLayoutParams(new FrameLayout.LayoutParams(10, 10, Gravity.CENTER));
crosshair.setBackgroundColor(Color.BLUE);
mapView.addView(crosshair);
}
@Override
protected void onStart() {
super.onStart();
mapView.onStart();
}
@Override
protected void onResume() {
super.onResume();
mapView.onResume();
}
@Override
protected void onPause() {
super.onPause();
mapView.onPause();
}
@Override
protected void onStop() {
super.onStop();
mapView.onStop();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mapView.onSaveInstanceState(outState);
}
@Override
protected void onDestroy() {
super.onDestroy();
mapView.onDestroy();
}
@Override
public void onLowMemory() {
super.onLowMemory();
mapView.onLowMemory();
}
}
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