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path: root/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/infowindow/DynamicInfoWindowAdapterActivity.java
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package com.mapbox.mapboxsdk.testapp.activity.infowindow;

import android.graphics.Color;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
import android.view.View;
import android.widget.TextView;

import com.mapbox.mapboxsdk.annotations.IconFactory;
import com.mapbox.mapboxsdk.annotations.InfoWindow;
import com.mapbox.mapboxsdk.annotations.Marker;
import com.mapbox.mapboxsdk.annotations.MarkerView;
import com.mapbox.mapboxsdk.annotations.MarkerViewOptions;
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.testapp.R;

/**
 * Shows how to dynamically update InfoWindow when Using an MapboxMap.InfoWindowAdapter
 */
public class DynamicInfoWindowAdapterActivity extends AppCompatActivity {

    private MapView mapView;

    private LatLng paris = new LatLng(48.864716, 2.349014);

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_infowindow_adapter);

        setupActionBar();

        mapView = (MapView) findViewById(R.id.mapView);
        mapView.onCreate(savedInstanceState);

        mapView.getMapAsync(new OnMapReadyCallback() {
            @Override
            public void onMapReady(@NonNull final MapboxMap mapboxMap) {
                //Add info window adapter
                addCustomInfoWindowAdapter(mapboxMap);

                //Keep info windows open on click
                mapboxMap.getUiSettings().setDeselectMarkersOnTap(false);

                //Add a marker
                final MarkerView marker = addMarker(mapboxMap);
                mapboxMap.selectMarker(marker);

                //On map click, change the info window contents
                mapboxMap.setOnMapClickListener(new MapboxMap.OnMapClickListener() {
                    @Override
                    public void onMapClick(@NonNull LatLng point) {
                        //Distance from click to marker
                        double distanceKm = marker.getPosition().distanceTo(point) / 1000;

                        //Get the info window
                        InfoWindow infoWindow = marker.getInfoWindow();

                        //Get the view from the info window
                        if (infoWindow != null && infoWindow.getView() != null) {
                            //Set the new text on the text view in the info window
                            ((TextView) infoWindow.getView()).setText(String.format("%.2fkm", distanceKm));

                            //Update the info window position (as the text length changes)
                            infoWindow.update();
                        }
                    }
                });

                //Focus on Paris
                mapboxMap.animateCamera(CameraUpdateFactory.newLatLng(paris));
            }
        });
    }

    private MarkerView addMarker(MapboxMap mapboxMap) {
        IconFactory iconFactory = IconFactory.getInstance(this);
        Drawable iconDrawable = ContextCompat.getDrawable(this, R.drawable.ic_location_city_24dp);
        iconDrawable.setColorFilter(getResources().getColor(R.color.mapbox_blue), PorterDuff.Mode.SRC_IN);

        return mapboxMap.addMarker(
                new MarkerViewOptions()
                        .position(paris)
                        .icon(iconFactory.fromDrawable(iconDrawable))
        );
    }

    private void addCustomInfoWindowAdapter(final MapboxMap mapboxMap) {
        final int padding = (int) getResources().getDimension(R.dimen.attr_margin);
        mapboxMap.setInfoWindowAdapter(new MapboxMap.InfoWindowAdapter() {

            @Nullable
            @Override
            public View getInfoWindow(@NonNull Marker marker) {
                TextView textView = new TextView(DynamicInfoWindowAdapterActivity.this);
                textView.setText(marker.getTitle());
                textView.setBackgroundColor(Color.WHITE);
                textView.setText("Click the map to calculate the distance");
                textView.setPadding(padding, padding, padding, padding);

                return textView;
            }
        });
    }

    @Override
    public void onResume() {
        super.onResume();
        mapView.onResume();
    }

    @Override
    public void onPause() {
        super.onPause();
        mapView.onPause();
    }

    @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();
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                onBackPressed();
                return true;
            default:
                return super.onOptionsItemSelected(item);
        }
    }

    private void setupActionBar() {
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.setDisplayHomeAsUpEnabled(true);
            actionBar.setDisplayShowHomeEnabled(true);
        }
    }
}