Examples

RecyclerView interaction

activity_lab_recycler_view_on_map
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:mapbox="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.mapbox.mapboxsdk.maps.MapView
android:id="@+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent"
mapbox:mapbox_cameraTargetLat="-34.598172"
mapbox:mapbox_cameraTargetLng="-58.374867"
mapbox:mapbox_cameraZoom="12" />
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/rv_on_top_of_map"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginBottom="32dp" />
</FrameLayout>
RecyclerViewOnMapActivity
package com.mapbox.mapboxandroiddemo.examples.labs;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.cardview.widget.CardView;
import androidx.recyclerview.widget.DefaultItemAnimator;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.LinearSnapHelper;
import androidx.recyclerview.widget.RecyclerView;
import androidx.recyclerview.widget.SnapHelper;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toast;
import com.mapbox.geojson.Feature;
import com.mapbox.geojson.FeatureCollection;
import com.mapbox.geojson.Point;
import com.mapbox.mapboxandroiddemo.R;
import com.mapbox.mapboxsdk.Mapbox;
import com.mapbox.mapboxsdk.camera.CameraPosition;
import com.mapbox.mapboxsdk.camera.CameraUpdateFactory;
import com.mapbox.mapboxsdk.geometry.LatLng;
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.SymbolLayer;
import com.mapbox.mapboxsdk.style.sources.GeoJsonSource;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconAllowOverlap;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconImage;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconOffset;
/**
* Use a recyclerview with a Mapbox map to easily explore content all on one screen
*/
public class RecyclerViewOnMapActivity extends AppCompatActivity implements OnMapReadyCallback {
private static final String SYMBOL_ICON_ID = "SYMBOL_ICON_ID";
private static final String SOURCE_ID = "SOURCE_ID";
private static final String LAYER_ID = "LAYER_ID";
public MapboxMap mapboxMap;
private MapView mapView;
private FeatureCollection featureCollection;
private LatLng[] coordinates = new LatLng[] {
new LatLng(-34.6054099, -58.363654800000006),
new LatLng(-34.6041508, -58.38555650000001),
new LatLng(-34.6114412, -58.37808899999999),
new LatLng(-34.6097604, -58.382064000000014),
new LatLng(-34.596636, -58.373077999999964),
new LatLng(-34.590548, -58.38256609999996),
new LatLng(-34.5982127, -58.38110440000003)
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Mapbox access token is configured here. This needs to be called either in your application
// object or in the same activity which contains the mapview.
Mapbox.getInstance(this, getString(R.string.access_token));
// This contains the MapView in XML and needs to be called after the access token is configured.
setContentView(R.layout.activity_lab_recycler_view_on_map);
// Initialize the map view
mapView = findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
mapView.getMapAsync(this);
}
@Override
public void onMapReady(@NonNull MapboxMap mapboxMap) {
RecyclerViewOnMapActivity.this.mapboxMap = mapboxMap;
mapboxMap.setStyle(Style.DARK, new Style.OnStyleLoaded() {
@Override
public void onStyleLoaded(@NonNull Style style) {
initFeatureCollection();
initMarkerIcons(style);
initRecyclerView();
Toast.makeText(RecyclerViewOnMapActivity.this, R.string.toast_instruction, Toast.LENGTH_SHORT).show();
}
});
}
private void initFeatureCollection() {
featureCollection = FeatureCollection.fromFeatures(new Feature[] {});
List<Feature> featureList = new ArrayList<>();
if (featureCollection != null) {
for (LatLng latLng : coordinates) {
featureList.add(Feature.fromGeometry(Point.fromLngLat(latLng.getLongitude(), latLng.getLatitude())));
}
featureCollection = FeatureCollection.fromFeatures(featureList);
}
}
private void initRecyclerView() {
RecyclerView recyclerView = findViewById(R.id.rv_on_top_of_map);
LocationRecyclerViewAdapter locationAdapter =
new LocationRecyclerViewAdapter(createRecyclerViewLocations(), mapboxMap);
recyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext(),
LinearLayoutManager.HORIZONTAL, true));
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.setAdapter(locationAdapter);
SnapHelper snapHelper = new LinearSnapHelper();
snapHelper.attachToRecyclerView(recyclerView);
}
private void initMarkerIcons(@NonNull Style loadedMapStyle) {
loadedMapStyle.addImage(SYMBOL_ICON_ID, BitmapFactory.decodeResource(
this.getResources(), R.drawable.red_marker));
loadedMapStyle.addSource(new GeoJsonSource(SOURCE_ID, featureCollection));
loadedMapStyle.addLayer(new SymbolLayer(LAYER_ID, SOURCE_ID).withProperties(
iconImage(SYMBOL_ICON_ID),
iconAllowOverlap(true),
iconOffset(new Float[] {0f, -4f})
));
}
private List<SingleRecyclerViewLocation> createRecyclerViewLocations() {
ArrayList<SingleRecyclerViewLocation> locationList = new ArrayList<>();
for (int x = 0; x < coordinates.length; x++) {
SingleRecyclerViewLocation singleLocation = new SingleRecyclerViewLocation();
singleLocation.setName(String.format(getString(R.string.rv_card_name), x));
singleLocation.setBedInfo(String.format(getString(R.string.rv_card_bed_info),
new Random().nextInt(coordinates.length)));
singleLocation.setLocationCoordinates(coordinates[x]);
locationList.add(singleLocation);
}
return locationList;
}
// Add the mapView lifecycle to the activity's lifecycle methods
@Override
public void onResume() {
super.onResume();
mapView.onResume();
}
@Override
protected void onStart() {
super.onStart();
mapView.onStart();
}
@Override
protected void onStop() {
super.onStop();
mapView.onStop();
}
@Override
public void onPause() {
super.onPause();
mapView.onPause();
}
@Override
public void onLowMemory() {
super.onLowMemory();
mapView.onLowMemory();
}
@Override
protected void onDestroy() {
super.onDestroy();
mapView.onDestroy();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mapView.onSaveInstanceState(outState);
}
/**
* POJO model class for a single location in the recyclerview
*/
class SingleRecyclerViewLocation {
private String name;
private String bedInfo;
private LatLng locationCoordinates;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getBedInfo() {
return bedInfo;
}
public void setBedInfo(String bedInfo) {
this.bedInfo = bedInfo;
}
public LatLng getLocationCoordinates() {
return locationCoordinates;
}
public void setLocationCoordinates(LatLng locationCoordinates) {
this.locationCoordinates = locationCoordinates;
}
}
static class LocationRecyclerViewAdapter extends
RecyclerView.Adapter<LocationRecyclerViewAdapter.MyViewHolder> {
private List<SingleRecyclerViewLocation> locationList;
private MapboxMap map;
public LocationRecyclerViewAdapter(List<SingleRecyclerViewLocation> locationList, MapboxMap mapBoxMap) {
this.locationList = locationList;
this.map = mapBoxMap;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.rv_on_top_of_map_card, parent, false);
return new MyViewHolder(itemView);
}
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
SingleRecyclerViewLocation singleRecyclerViewLocation = locationList.get(position);
holder.name.setText(singleRecyclerViewLocation.getName());
holder.numOfBeds.setText(singleRecyclerViewLocation.getBedInfo());
holder.setClickListener(new ItemClickListener() {
@Override
public void onClick(View view, int position) {
LatLng selectedLocationLatLng = locationList.get(position).getLocationCoordinates();
CameraPosition newCameraPosition = new CameraPosition.Builder()
.target(selectedLocationLatLng)
.build();
map.easeCamera(CameraUpdateFactory.newCameraPosition(newCameraPosition));
}
});
}
@Override
public int getItemCount() {
return locationList.size();
}
static class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
TextView name;
TextView numOfBeds;
CardView singleCard;
ItemClickListener clickListener;
MyViewHolder(View view) {
super(view);
name = view.findViewById(R.id.location_title_tv);
numOfBeds = view.findViewById(R.id.location_num_of_beds_tv);
singleCard = view.findViewById(R.id.single_location_cardview);
singleCard.setOnClickListener(this);
}
public void setClickListener(ItemClickListener itemClickListener) {
this.clickListener = itemClickListener;
}
@Override
public void onClick(View view) {
clickListener.onClick(view, getLayoutPosition());
}
}
}
public interface ItemClickListener {
void onClick(View view, int position);
}
}
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