android - 如何在 Heremaps API (Android) 上添加 MapOverlay 到地图时禁用蓝色图钉

Question

我正在尝试在 LongPressEvent 上添加 MapOverlay 地图，并在此之后将地图居中，但即使没有将地图居中，它也会在显示覆盖之前始终显示蓝色图钉（此处为默认图钉）。

添加 MapOverlay 时有什么方法可以防止显示蓝色图钉？

更新更多代码：

坐标

private class MapGestureListener implements MapGesture.OnGestureListener{
...
        @Override
        public boolean onLongPressEvent(PointF pointF) {
            GeoCoordinate gc =map.pixelToGeo(pointF);
            if(sdkMapSettingsListener!=null)
                sdkMapSettingsListener.onLongPress(gc);
            return false; //i've tried returning true and then use map.setCenter and the problem persists.
}

...

then on my listener:

        @Override
        public void onLongPress(GeoCoordinate gc) {
        if(mo!=null)
        {

            map.removeMapOverlay(mo);
            mo=null;
        }//remove old overlay if exists

        View view = inflater.inflate(R.layout.custom_map_info_window, null);
        RelativeLayout info_window_wrapper = view.findViewById(R.id.info_window_wrapper);
        info_window_wrapper.setBackgroundTintList(ColorStateList.valueOf(ThemeUtils.getEntityColor(GPSApplication.getInstance(),Constants.EntityTheme.colorPrimary)));
        ImageView imgPlaceIcon = view.findViewById(R.id.imageView_placeIcon);
        imgPlaceIcon.setColorFilter(ThemeUtils.getEntityColor(GPSApplication.getInstance(),Constants.EntityTheme.colorAccent));
        ImageView ivPlaceMarker = view.findViewById(R.id.ivPlaceMarker);
        ivPlaceMarker.setColorFilter(ThemeUtils.getEntityColor(GPSApplication.getInstance(),Constants.EntityTheme.colorAccent));

        TextView textViewPlaceName = view.findViewById(R.id.textView_PlaceName);
        final TextView textViewOpenNow = view.findViewById(R.id.textView_OpenNow);
        TextView textViewDistance = view.findViewById(R.id.textView_Distance);

        textViewPlaceName.setTextColor(ThemeUtils.getEntityColor(GPSApplication.getInstance(),Constants.EntityTheme.primaryTextColor));
        textViewDistance.setTextColor(ThemeUtils.getEntityColor(GPSApplication.getInstance(),Constants.EntityTheme.primaryTextColor));
     String sDistance = SearchManager.getInstance().requestDistanceTo(gc,mContext);
        textViewPlaceName.setText(sPlace);
        textViewDistance.setText(sDistance);

        mo = new MapOverlay(view,gc);
        mo.setAnchorPoint(new PointF(ScreenUtils.convertDPToPixels(mContext,75),ScreenUtils.convertDPToPixels(mContext,108)));
        map.addMapOverlay(mo);
        //map.setCenter(gc, Map.Animation.LINEAR);

}

地图叠加视图

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="150dp"
    android:layout_height="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <RelativeLayout
        android:id="@+id/info_window_wrapper"
        android:layout_width="wrap_content"
        android:layout_height="69dp"
        android:orientation="vertical"
        android:paddingTop="@dimen/margin_xsmall"
        android:paddingEnd="@dimen/margin_xsmall"
        android:paddingStart="@dimen/margin_xsmall"
        android:paddingBottom="25dp"
        android:background="@drawable/custom_info_window_shape"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">
        <TextView
            android:id="@+id/textView_PlaceName"
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:singleLine="true"
            android:textSize="12sp"
            android:text=""/>

        <RelativeLayout
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:layout_below="@id/textView_PlaceName">

            <TextView
                android:id="@+id/textView_OpenNow"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:singleLine="false"
                android:textSize="12sp"
                android:text="Open" />

            <ImageView
                android:id="@+id/imageView_placeIcon"
                android:layout_width="17dp"
                android:layout_height="17dp"
                android:layout_alignParentTop="true"
                android:layout_toStartOf="@+id/textView_Distance"
                android:padding="@dimen/margin_xxsmall"
                android:src="@drawable/ic_place_white_24dp" />

            <TextView
                android:id="@+id/textView_Distance"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentEnd="true"
                android:layout_alignParentTop="true"
                android:singleLine="false"
                android:text=""
                android:textSize="12sp" />

        </RelativeLayout>

    </RelativeLayout>

    <ImageView
        android:id="@+id/ivPlaceMarker"
        android:layout_width="32dp"
        android:layout_height="32dp"
        android:scaleType="fitXY"
        android:src="@drawable/ic_place_white_24dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.47"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/info_window_wrapper" />

</androidx.constraintlayout.widget.ConstraintLayout>

第一个屏幕是首先显示的内容（蓝色图钉），然后是第二个屏幕（MapOverlay）

更新视频：https ://www.youtube.com/watch?v=qNuZNUWDxeQ

UPDATE 2 示例活动类似于我们的项目，发生此问题并且没有添加标记：

public class TheThirdActivity extends AppCompatActivity {

    private final static int REQUEST_CODE_ASK_PERMISSIONS = 1;

    /**
     * Permissions that need to be explicitly requested from end user.
     */
    private static final String[] REQUIRED_SDK_PERMISSIONS = new String[] {
            Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.WRITE_EXTERNAL_STORAGE };
    private Map map = null;
    private SupportMapFragment mapFragment = null;
    MapOverlay mo;
    Context mContext;
    LayoutInflater inflater;


    SDKMapSettingsListener sdkMapSettingsListener;
    public interface SDKMapSettingsListener {
        void onLongPress(GeoCoordinate gc);
    }

    public void setSdkMapSettingsListener(SDKMapSettingsListener listener) {
        this.sdkMapSettingsListener = listener;
    }

    private SupportMapFragment getMapFragment() {
        return (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.mapfragment);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mContext = this;
        inflater = getLayoutInflater();
        setContentView(R.layout.activity_the_third);
        mapFragment = getMapFragment();
        boolean success = com.here.android.mpa.common.MapSettings.setIsolatedDiskCacheRootPath(
                getApplicationContext().getExternalFilesDir(null) + File.separator + ".here-maps",
                "com.here.android.tutorial.MapService");

        if (!success) {
            Toast.makeText(getApplicationContext(), "Unable to set isolated disk cache path.", Toast.LENGTH_LONG);
        } else {
            mapFragment.init(new OnEngineInitListener() {
                @Override
                public void onEngineInitializationCompleted(OnEngineInitListener.Error error) {
                    if (error == OnEngineInitListener.Error.NONE) {
                        map = mapFragment.getMap();
                        map.setCenter(new GeoCoordinate(41.160465,-8.647859 ), Map.Animation.NONE);
                        map.setZoomLevel(18);

                        map.setMapScheme(Map.Scheme.NORMAL_TRAFFIC_NIGHT);
                        mapFragment.getMapGesture().addOnGestureListener(new MapGesture.OnGestureListener() {
                            @Override
                            public boolean onLongPressEvent(PointF pointF) {
                                GeoCoordinate gc =map.pixelToGeo(pointF);
                                if(sdkMapSettingsListener!=null)
                                    sdkMapSettingsListener.onLongPress(gc);
                                return true;
                            }
                            @Override
                            public boolean onTapEvent(PointF pointF) {
                                if(mo!=null)
                                    map.removeMapOverlay(mo);
                                mo=null;
                                return false;
                            }

                            @Override
                            public void onPanStart() {

                            }
                            @Override
                            public void onPanEnd() {

                            }
                            @Override
                            public void onMultiFingerManipulationStart() {

                            }
                            @Override
                            public void onMultiFingerManipulationEnd() {

                            }
                            @Override
                            public boolean onMapObjectsSelected(List<ViewObject> list) {
                                return false;
                            }
                            @Override
                            public boolean onDoubleTapEvent(PointF pointF) {
                                return false;
                            }
                            @Override
                            public void onPinchLocked() {

                            }
                            @Override
                            public boolean onPinchZoomEvent(float v, PointF pointF) {
                                return false;
                            }
                            @Override
                            public void onRotateLocked() {

                            }
                            @Override
                            public boolean onRotateEvent(float v) {
                                return false;
                            }
                            @Override
                            public boolean onTiltEvent(float v) {
                                return false;
                            }
                            @Override
                            public void onLongPressRelease() {

                            }
                            @Override
                            public boolean onTwoFingerTapEvent(PointF pointF) {
                                return false;
                            }
                        }, 1, true);
                        sdkMapSettingsListener = new SDKMapSettingsListener() {
                            @Override
                            public void onLongPress(GeoCoordinate gc) {
                                if(mo!=null)
                                {

                                    map.removeMapOverlay(mo);
                                    mo=null;
                                }

                                View view = inflater.inflate(R.layout.custom_map_info_window, null);
                                RelativeLayout info_window_wrapper = view.findViewById(R.id.info_window_wrapper);
                                info_window_wrapper.setBackgroundTintList(ColorStateList.valueOf(Color.BLACK));
                                ImageView imgPlaceIcon = view.findViewById(R.id.imageView_placeIcon);
                                imgPlaceIcon.setColorFilter(Color.YELLOW);
                                ImageView ivPlaceMarker = view.findViewById(R.id.ivPlaceMarker);
                                ivPlaceMarker.setColorFilter(Color.YELLOW);

                                TextView textViewPlaceName = view.findViewById(R.id.textView_PlaceName);
                                final TextView textViewOpenNow = view.findViewById(R.id.textView_OpenNow);
                                TextView textViewDistance = view.findViewById(R.id.textView_Distance);

                                textViewPlaceName.setTextColor(Color.WHITE);
                                textViewDistance.setTextColor(Color.WHITE);
                                String sDistance = requestDistanceTo(gc,mContext);
                                textViewPlaceName.setText("sample place");
                                textViewDistance.setText(sDistance);

                                mo = new MapOverlay(view,gc);
                                mo.setAnchorPoint(new PointF(convertDPToPixels(mContext,75),convertDPToPixels(mContext,108)));
                                map.addMapOverlay(mo);
                                map.setCenter(gc, Map.Animation.LINEAR);
                            }
                        };
                    } else {
                        System.out.println("ERROR: Cannot initialize Map Fragment");
                    }


                }
            });
        }
    }

    public int convertDPToPixels(Context context, int dip) {
        DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics();
        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dip, displayMetrics);
    }

    public String requestDistanceTo(@NonNull GeoCoordinate geoCoordinate, @NonNull Context mContext)
    {
        String sFinal="";
        double dDist=0;
        if(PositioningManager.getInstance().getPosition().getCoordinate().isValid())
        {
            dDist= PositioningManager.getInstance().getPosition().getCoordinate().distanceTo(geoCoordinate);
        }
        else
        {
            if(PositioningManager.getInstance().getLastKnownPosition().getCoordinate().isValid())
                dDist= PositioningManager.getInstance().getLastKnownPosition().getCoordinate().distanceTo(geoCoordinate);
            else
                return "";
        }
        long lDist = (long) dDist;
        sFinal= formatInMetricSystem(mContext,lDist);
        return sFinal;
    }

    private static final NumberFormat FORMATTER = NumberFormat.getInstance();
    public static String formatInMetricSystem(final Context context, final long distance) {
        final String value;
        final String unit;
        if (distance < 0) { // invalid
            value = "--";
            unit = "m";
        } else if (distance < 1000) {
            value = FORMATTER.format(distance);
            unit = "m";
        } else {
            value = FORMATTER.format(Math.round((double) distance / 1000));
            unit = "km";
        }
        return String.format("%1$s%2$s", value, unit);
    }

}

标签： androidhere-api

Answer 1

查看您的第一个屏幕截图，MapMarker（图钉）可以在地图上显示的唯一方法是您在代码中的某个位置添加它。从第二个屏幕截图中，看起来 MapOverlay 只是覆盖了 MapMarker（引脚）。您能否检查您的代码以查看您是否将 MapMarker 添加到地图并将其删除（map.removeMapObject(<map marker>).