DefaultNavigationView.java

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package com.navigine.view;
 
import android.content.Context;
import android.graphics.Color;
import android.graphics.PointF;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.ViewGroup;
import android.widget.FrameLayout;
 
import com.navigine.idl.java.CameraListener;
import com.navigine.idl.java.CameraUpdateReason;
import com.navigine.idl.java.Location;
import com.navigine.idl.java.LocationListener;
import com.navigine.idl.java.LocationManager;
import com.navigine.idl.java.NavigineSdk;
import com.navigine.idl.java.Sublocation;
import com.navigine.idl.java.SublocationChangeListener;
import com.navigine.view.widgets.FloorSelectorView;
import com.navigine.view.widgets.ZoomControls;
import com.navigine.view.widgets.FollowMeButton;
import com.navigine.idl.java.UserLocationLayer;
 
import java.util.ArrayList;
import java.util.List;

public class DefaultNavigationView extends LocationView {
    public static final String TAG = DefaultNavigationView.class.getCanonicalName();

    public DefaultNavigationView(final Context context) {
        super(context);
        setupUI();
    }

    public DefaultNavigationView(final Context context, final AttributeSet attrs) {
        super(context, attrs);
        setupUI();
    }
 
    @Override
    protected void onDetachedFromWindow() {
        locationManager.removeLocationListener(locationListener);
        locationWindow.removeSublocationChangeListener(sublocationChangeListener);
        locationWindow.removeCameraListener(cameraListener);
        super.onDetachedFromWindow();
    }

    private void setupUI() {
        sublocationChangeListener = new SublocationChangeListener() {
            @Override
            public void onActiveSublocationChanged(int sublocationId) {
                floorSelector.setSublocationId(sublocationId);
            }
        };
        locationWindow.addSublocationChangeListener(sublocationChangeListener);
 
        ZoomControls zoomControls = new ZoomControls(getContext(),
                this::zoomInPressed,
                this::zoomOutPressed);
        FrameLayout.LayoutParams zoomLp = new FrameLayout.LayoutParams(
                ViewGroup.LayoutParams.WRAP_CONTENT,
                ViewGroup.LayoutParams.WRAP_CONTENT
        );
        zoomLp.gravity = Gravity.END | Gravity.CENTER_VERTICAL;
        addView(zoomControls, zoomLp);
 
        followMeButton = new FollowMeButton(getContext(),
                this::followMePressed);
        FrameLayout.LayoutParams followLp = new FrameLayout.LayoutParams(
                ViewGroup.LayoutParams.WRAP_CONTENT,
                ViewGroup.LayoutParams.WRAP_CONTENT
        );
        followLp.gravity = Gravity.END | Gravity.BOTTOM;
        followLp.setMargins(0, 0, dpToPx((int) com.navigine.view.widgets.WidgetStyles.STANDARD_RIGHT_PADDING), 
                dpToPx((int) com.navigine.view.widgets.WidgetStyles.FOLLOW_ME_BOTTOM_PADDING));
        addView(followMeButton, followLp);
 
        floorSelector = new FloorSelectorView(getContext(),
                (sublocationId) -> locationWindow.setSublocationId(sublocationId));
 
        FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(
                ViewGroup.LayoutParams.WRAP_CONTENT,
                ViewGroup.LayoutParams.WRAP_CONTENT
        );
        lp.gravity = Gravity.START | Gravity.TOP;
        lp.setMargins(dpToPx((int) com.navigine.view.widgets.WidgetStyles.STANDARD_LEFT_PADDING), 
                dpToPx((int) com.navigine.view.widgets.WidgetStyles.FLOOR_SELECTOR_TOP_PADDING), 0, 0);
        floorSelector.setVisibility(GONE);
 
        addView(floorSelector, lp);
 
        locationManager = NavigineSdk.getInstance().getLocationManager();
        locationListener = new LocationListener() {
            @Override
            public void onLocationLoaded(Location location) {
                if (location != null) {
                    floorSelector.setVisibility(VISIBLE);
                } else {
                    return;
                }
                List<FloorSelectorView.LevelInfo> floors = new ArrayList<>();
                for(Sublocation sublocation : location.getSublocations()) {
                    floors.add(new FloorSelectorView.LevelInfo(sublocation.getLevelId(), sublocation.getId()));
                }
 
                floorSelector.setFloors(floors);
            }
 
            @Override
            public void onLocationFailed(int i, Error error) {
            }
 
            @Override
            public void onLocationUploaded(int locationId) {
            }
 
        };
        locationManager.addLocationListener(locationListener);
 
        userLocationLayer = NavigineSdk.getInstance().getUserLocationLayer(locationWindow);
        userLocationLayer.setVisible(true);
 
        cameraListener = new CameraListener() {
            @Override
            public void onCameraPositionChanged(CameraUpdateReason reason, boolean finished) {
                if (reason == CameraUpdateReason.APPLICATION) {
                    return;
                }
 
                if (followMeButton != null && followMeButton.isFollowing()) {
                    userLocationLayer.resetAnchor();
                    followMeButton.updateAppearanceForFollowingState(false);
                }
            }
        };
        locationWindow.addCameraListener(cameraListener);
    }
 

    private void zoomInPressed() {
        float currentZoom = locationWindow.getZoomFactor();
        locationWindow.setZoomFactor(currentZoom * (3.f / 2.f));
    }

    private void zoomOutPressed() {
        float currentZoom = locationWindow.getZoomFactor();
        locationWindow.setZoomFactor(currentZoom * (2.f / 3.f));
    }
 
    private int dpToPx(int dp) {
        return (int) (dp * getResources().getDisplayMetrics().density + 0.5f);
    }

    private void followMePressed(boolean isFollowing) {
        if (isFollowing) {
            float centerX = getWidth() / 2f;
            float centerY = getHeight() / 2f;
            PointF anchorPoint = new PointF(centerX, centerY);
            userLocationLayer.setAnchor(anchorPoint);
        } else {
            userLocationLayer.resetAnchor();
        }
    }
 
    private FloorSelectorView floorSelector;
    private LocationManager locationManager;
    private LocationListener locationListener;
    private SublocationChangeListener sublocationChangeListener;
    private UserLocationLayer userLocationLayer;
    private CameraListener cameraListener;
    private FollowMeButton followMeButton;
}