Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

chore: Cleaned up cluster diff demo #1446

Merged
merged 1 commit into from
Jan 16, 2025
Merged

chore: Cleaned up cluster diff demo #1446

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
253 changes: 124 additions & 129 deletions demo/src/main/java/com/google/maps/android/utils/demo/ClusteringDiffDemoActivity.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -46,18 +46,32 @@
import java.util.ArrayList;
import java.util.List;

enum City {
ENFIELD(new LatLng(51.6524, -0.0838), "Enfield"),
ILFORD(new LatLng(51.5590, -0.0815), "Ilford"),
LONDON(new LatLng(51.5074, -0.1278), "London");

public final LatLng latLng;
public final String label;

City(LatLng latLng, String label) {
this.latLng = latLng;
this.label = label;
}
}

/**
* Demonstrates how to apply a diff to the current Cluster
*/
public class ClusteringDiffDemoActivity extends BaseDemoActivity implements ClusterManager.OnClusterClickListener<Person>, ClusterManager.OnClusterInfoWindowClickListener<Person>, ClusterManager.OnClusterItemClickListener<Person>, ClusterManager.OnClusterItemInfoWindowClickListener<Person> {
private ClusterManager<Person> mClusterManager;
private Person itemtoUpdate = new Person(ENFIELD, "Teach", R.drawable.teacher);

private static final LatLng ENFIELD = new LatLng(51.6524, -0.0838);
private static final LatLng ILFORD = new LatLng(51.5590, -0.0815);
public class ClusteringDiffDemoActivity extends BaseDemoActivity
implements ClusterManager.OnClusterClickListener<Person>,
ClusterManager.OnClusterInfoWindowClickListener<Person>,
ClusterManager.OnClusterItemClickListener<Person>,
ClusterManager.OnClusterItemInfoWindowClickListener<Person> {

private static final LatLng LONDON = new LatLng(51.5074, -0.1278);
LatLng midpoint = getMidpoint();
private final LatLng midpoint = getMidpoint();
private ClusterManager<Person> mClusterManager;
private Person itemToUpdate = new Person(City.ENFIELD.latLng, "Teach", R.drawable.teacher);
private int currentLocationIndex = 0;

protected int getLayoutId() {
Expand All @@ -71,11 +85,108 @@ public void onMapReady(@NonNull GoogleMap map) {
getMap().animateCamera(CameraUpdateFactory.newLatLngZoom(midpoint, 12));
}


private LatLng getMidpoint() {
double latitude = (ClusteringDiffDemoActivity.ENFIELD.latitude + ClusteringDiffDemoActivity.ILFORD.latitude + ClusteringDiffDemoActivity.LONDON.latitude) / 3;
double longitude = (ClusteringDiffDemoActivity.ENFIELD.longitude + ClusteringDiffDemoActivity.ILFORD.longitude + ClusteringDiffDemoActivity.LONDON.longitude) / 3;
return new LatLng(latitude, longitude);
double latitude = 0.0;
double longitude = 0.0;

for (City city: City.values()) {
latitude += city.latLng.latitude;
longitude += city.latLng.longitude;
}

int numCities = City.values().length;

return new LatLng(latitude / numCities, longitude / numCities);
}

@Override
public boolean onClusterClick(Cluster<Person> cluster) {
// Show a toast with some info when the cluster is clicked.
String firstName = cluster.getItems().iterator().next().name;
Toast.makeText(this, cluster.getSize() + " (including " + firstName + ")", Toast.LENGTH_SHORT).show();

// Zoom in the cluster. Need to create LatLngBounds and including all the cluster items
// inside of bounds, then animate to center of the bounds.

// Create the builder to collect all essential cluster items for the bounds.
LatLngBounds.Builder builder = LatLngBounds.builder();
for (ClusterItem item : cluster.getItems()) {
builder.include(item.getPosition());
}
// Get the LatLngBounds
final LatLngBounds bounds = builder.build();

// Animate camera to the bounds
try {
getMap().animateCamera(CameraUpdateFactory.newLatLngBounds(bounds, 200));
} catch (Exception e) {
e.printStackTrace();
}

return true;
}

@Override
public void onClusterInfoWindowClick(Cluster<Person> cluster) {
// Does nothing, but you could go to a list of the users.
}

@Override
public boolean onClusterItemClick(Person item) {
// Does nothing, but you could go into the user's profile page, for example.
return false;
}

@Override
public void onClusterItemInfoWindowClick(Person item) {
// Does nothing, but you could go into the user's profile page, for example.
}

@Override
protected void startDemo(boolean isRestore) {
if (!isRestore) {
getMap().moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(51.503186, -0.126446), 6));
}

mClusterManager = new ClusterManager<>(this, getMap());
mClusterManager.setRenderer(new PersonRenderer());
getMap().setOnCameraIdleListener(mClusterManager);
getMap().setOnMarkerClickListener(mClusterManager);
getMap().setOnInfoWindowClickListener(mClusterManager);
mClusterManager.setOnClusterClickListener(this);
mClusterManager.setOnClusterInfoWindowClickListener(this);
mClusterManager.setOnClusterItemClickListener(this);
mClusterManager.setOnClusterItemInfoWindowClickListener(this);

addItems();
mClusterManager.cluster();
}

private void addItems() {
// Marker in Enfield
mClusterManager.addItem(new Person(City.ENFIELD.latLng, "John", R.drawable.john));

// Marker in the center of London
itemToUpdate = new Person(City.LONDON.latLng, "Teach", R.drawable.teacher);
mClusterManager.addItem(itemToUpdate);
}

private void rotateLocation() {
// Update the current index to cycle through locations (0 = Enfield, 1 = Olford, 2 = London)
currentLocationIndex = (currentLocationIndex + 1) % City.values().length;

City nextCity = City.values()[currentLocationIndex];

LatLng newLocation = nextCity.latLng;
String cityName = nextCity.label;

Log.d("ClusterTest", "Item rotated to: " + newLocation.toString() + ", City: " + cityName);

if (itemToUpdate != null) {
itemToUpdate = new Person(newLocation, "Teach", R.drawable.teacher);
mClusterManager.updateItem(itemToUpdate); // Update the marker
mClusterManager.cluster();
}
}

/**
Expand Down Expand Up @@ -108,9 +219,7 @@ public PersonRenderer() {
@Override
protected void onBeforeClusterItemRendered(@NonNull Person person, @NonNull MarkerOptions markerOptions) {
// Draw a single person - show their profile photo and set the info window to show their name
markerOptions
.icon(getItemIcon(person))
.title(person.name);
markerOptions.icon(getItemIcon(person)).title(person.name);
}

@Override
Expand Down Expand Up @@ -180,118 +289,4 @@ protected boolean shouldRenderAsCluster(@NonNull Cluster<Person> cluster) {
return cluster.getSize() >= 2;
}
}


@Override
public boolean onClusterClick(Cluster<Person> cluster) {
// Show a toast with some info when the cluster is clicked.
String firstName = cluster.getItems().iterator().next().name;
Toast.makeText(this, cluster.getSize() + " (including " + firstName + ")", Toast.LENGTH_SHORT).show();

// Zoom in the cluster. Need to create LatLngBounds and including all the cluster items
// inside of bounds, then animate to center of the bounds.

// Create the builder to collect all essential cluster items for the bounds.
LatLngBounds.Builder builder = LatLngBounds.builder();
for (ClusterItem item : cluster.getItems()) {
builder.include(item.getPosition());
}
// Get the LatLngBounds
final LatLngBounds bounds = builder.build();

// Animate camera to the bounds
try {
getMap().animateCamera(CameraUpdateFactory.newLatLngBounds(bounds, 100));
} catch (Exception e) {
e.printStackTrace();
}

return true;
}

@Override
public void onClusterInfoWindowClick(Cluster<Person> cluster) {
// Does nothing, but you could go to a list of the users.
}

@Override
public boolean onClusterItemClick(Person item) {
// Does nothing, but you could go into the user's profile page, for example.
return false;
}

@Override
public void onClusterItemInfoWindowClick(Person item) {
// Does nothing, but you could go into the user's profile page, for example.
}

@Override
protected void startDemo(boolean isRestore) {
if (!isRestore) {
getMap().moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(51.503186, -0.126446), 6));
}

mClusterManager = new ClusterManager<>(this, getMap());
mClusterManager.setRenderer(new PersonRenderer());
getMap().setOnCameraIdleListener(mClusterManager);
getMap().setOnMarkerClickListener(mClusterManager);
getMap().setOnInfoWindowClickListener(mClusterManager);
mClusterManager.setOnClusterClickListener(this);
mClusterManager.setOnClusterInfoWindowClickListener(this);
mClusterManager.setOnClusterItemClickListener(this);
mClusterManager.setOnClusterItemInfoWindowClickListener(this);

addItems();
mClusterManager.cluster();
}

private void addItems() {
// Marker in Enfield
mClusterManager.addItem(new Person(ENFIELD, "John", R.drawable.john));

// Marker in the center of London
itemtoUpdate = new Person(LONDON, "Teach", R.drawable.teacher);
mClusterManager.addItem(itemtoUpdate);
}

private void rotateLocation() {
// Update the current index to cycle through locations (0 = Enfield, 1 = Olford, 2 = London)
currentLocationIndex = (currentLocationIndex + 1) % 3;


LatLng newLocation = switch (currentLocationIndex) {
case 0 -> ENFIELD;
case 1 -> ILFORD;
default -> LONDON;
};

String cityName = getCityName(newLocation);

Log.d("ClusterTest", "Item rotated to: " + newLocation.toString() + ", City: " + cityName);

if (itemtoUpdate != null) {
itemtoUpdate = new Person(newLocation, "Teach", R.drawable.teacher);
mClusterManager.updateItem(itemtoUpdate); // Update the marker
mClusterManager.cluster();
}
}

// Method to map LatLng to city name
private String getCityName(LatLng location) {
if (areLocationsEqual(location, ENFIELD)) {
return "Enfield";
} else if (areLocationsEqual(location, ILFORD)) {
return "Ilford";
} else if (areLocationsEqual(location, LONDON)) {
return "London";
} else {
return "Unknown City"; // Default case if location is not recognized
}
}

// Method to compare LatLng objects with a tolerance
private boolean areLocationsEqual(LatLng loc1, LatLng loc2) {
return Math.abs(loc1.latitude - loc2.latitude) < 1E-5 &&
Math.abs(loc1.longitude - loc2.longitude) < 1E-5;
}
}
Loading