OSMbonusPack气泡标题不显示

Question

我显示了一个标记来显示用户的位置，这是通过电话GPS获得的，并且我添加了一个FolderOverlay来分组其他标记（这些标记表示使用自定义API检索的Wikipedia中的POI）。

我在我的项目中包含了bonuspack_bubble.xml布局文件，因为我想修改它以适当地缩放“More Info”按钮。

问题

谢谢！

注意：使用osmbonuspack V5.3(AAR)、osmdroid 4.3、Android Studio 1.2.2并在带有Android 4.2.2的Galaxy S4上进行测试

代码：

public void drawMap(Location location, MapView map, LocationManager locationManager, LocationListener locationListener) {
...
    final GeoPoint startPoint = new GeoPoint(location.getLatitude(), location.getLongitude());

    // Now we add a marker using osmBonusPack
    Marker startMarker = new Marker(map);
    startMarker.setPosition(startPoint);
    startMarker.setAnchor(Marker.ANCHOR_CENTER, Marker.ANCHOR_BOTTOM);
    map.getOverlays().add(startMarker);

    // We can change some properties of the marker (don't forget to refresh the map !!)
    startMarker.setInfoWindow(new CustomInfoWindow(map));
    startMarker.setIcon(ContextCompat.getDrawable(getActivity(), R.drawable.ic_place));
    startMarker.setTitle(getString(R.string.you_are_here));
    map.invalidate();
...

    // We create an Overlay Folder to store every POI, so that they are grouped in clusters
    // if there are too many of them
    RadiusMarkerClusterer poiMarkers = new RadiusMarkerClusterer(getActivity());
    Drawable clusterIconD = ContextCompat.getDrawable(getActivity(), R.drawable.marker_cluster);
    Bitmap clusterIcon = ((BitmapDrawable)clusterIconD).getBitmap();
    poiMarkers.setIcon(clusterIcon);
    map.getOverlays().add(poiMarkers);

    // poiList is an ArrayList of custom POIs
    for (POI poi:poiList) {
        double mLat = poi.getLatitude();
        double mLong = poi.getLongitude();
        GeoPoint poiWaypoint = new GeoPoint(mLat, mLong);
        Marker marker = new Marker(map);
        marker.setPosition(poiWaypoint);
        marker.setAnchor(Marker.ANCHOR_CENTER, Marker.ANCHOR_BOTTOM);
        marker.setRelatedObject(poi);
        marker.setInfoWindow(new CustomInfoWindow(map));
        marker.setTitle(poi.getName());
        marker.setSnippet(poi.getSitelink());
        Drawable icon = ContextCompat.getDrawable(getActivity(), R.drawable.ic_place);
        marker.setIcon(icon);
        poiMarkers.add(marker);
    }

    map.invalidate();

}

public class CustomInfoWindow extends MarkerInfoWindow {
    private POI mSelectedPoi;

    public CustomInfoWindow(MapView mapView) {
        super(R.layout.bonuspack_bubble, mapView);

        Button btn = (Button) (mView.findViewById(R.id.bubble_moreinfo));

        btn.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {
                if (mSelectedPoi.getSitelink() != null) {
                    Intent myIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(mSelectedPoi.getSitelink()));
                    view.getContext().startActivity(myIntent);
                }
            }
        });
    }

    @Override
    public void onOpen(Object item){
        super.onOpen(item);
        mView.findViewById(R.id.bubble_moreinfo).setVisibility(View.VISIBLE);

        Marker marker = (Marker)item;
        mSelectedPoi = (POI)marker.getRelatedObject();
    }
}

public class POI {

    // We define every variable returned by the WikiJourney API
    private double latitude;
    private double longitude;
    private String name;
    private String sitelink;
    private String type_name;
    private int type_id;
    private int id;

    public POI(...) { }
}

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:background="@drawable/bonuspack_bubble" >
    <ImageView android:id="@+id/bubble_image"
        android:layout_width="65dp"
        android:layout_height="65dp"
        android:visibility="gone" />
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:paddingStart="5dp"
        android:paddingEnd="5dp"
        android:paddingLeft="5dp"
        android:paddingRight="5dp"
        android:orientation="vertical" >
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal" >
            <TextView android:id="@+id/bubble_title"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textColor="#000000"
                android:maxEms="17"
                android:layout_gravity="start"
                android:layout_weight="1"
                android:text="Title" />
            <Button android:id="@+id/bubble_moreinfo"
                android:background="@drawable/btn_moreinfo"
                android:visibility="gone"
                android:layout_width="25sp"
                android:layout_height="25sp"
                android:layout_gravity="end"
                android:layout_weight="0" />
        </LinearLayout>
        <TextView android:id="@+id/bubble_description"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#000000"
            android:textSize="12sp"
            android:maxEms="17"
            android:text="Description" />
        <TextView android:id="@+id/bubble_subdescription"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#000000"
            android:textSize="10sp"
            android:maxEms="17"
            android:text="Address"
            android:visibility="gone" />
    </LinearLayout>
</LinearLayout>

Answer 1

真正让人惊讶的是，你的app竟然没有崩溃：

您将CustomInfoWindow设置为startMarker，而不设置任何相关的POI对象。但是在CustomInfoWindow.onOpen中，您可以获得相关对象，如果它不是空的，并且如果它真的是POI，您可以不经测试就使用它。这不行。

或者定义“StartInfowIndow”类，或者确保CustomInfoWindow完全支持StartMarker。