Android Maps Utils Clustering 显示信息窗口

Question

我打算使用 utils 库中可用的 google 地图标记聚类，但 google 示例应用程序只显示标记聚类，没有任何信息窗口。我现在想知道，我不能显示信息窗口吗？我希望 InfoWindow 像普通 google 地图标记一样显示在标记上，而不是显示在集群上。

我的代码：（来自 google 示例）

public class BigClusteringDemoActivity extends FragmentActivity {
    private ClusterManager<MyItem> mClusterManager;
    private GoogleMap mMap;

    private void readItems() {
        InputStream inputStream = getResources().openRawResource(R.raw.radar_search);
        List<MyItem> items = new MyItemReader().read(inputStream);

        for (int i = 0; i < 10; i++) {
            double offset = i / 60d;
            for (MyItem item : items) {
                LatLng position = item.getPosition();
                double lat = position.latitude + offset;
                double lng = position.longitude + offset;
                MyItem offsetItem = new MyItem(lat, lng);
                mClusterManager.addItem(offsetItem);
            }
        }
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.map);

        mClusterManager = new ClusterManager<>(this, mMap);

        mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();

        mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(51.503186, -0.126446), 10));
        mMap.setOnCameraChangeListener(mClusterManager);

        readItems();
    }

}

Answer 1

  @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.map);

        mClusterManager = new ClusterManager<>(this, mMap);

        mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();

        mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(51.503186, -0.126446), 10));
        mMap.setOnCameraChangeListener(mClusterManager);
        mMap.setInfoWindowAdapter(new InfoWindowAdapter() {
        /**
         * View for displaying marker popup, if null default framework view would be used
         */
        @Override
        public View getInfoWindow(Marker marker) {
            return null;
        }

        /**
         * For changing the content of infowindow
         * Called when showMarkerInfo method is called
         */
        @Override
        public View getInfoContents(Marker marker) {
            View v = getLayoutInflater().inflate(R.layout.view_to_inflate, null);      
            //code for initializing view part
            return v;
        }
    });
        readItems();
    }

Answer 2

这是一个基于 this answer 的经过简化和略微修改的解决方案。请注意，链接的答案为标记和集群实现了一个信息窗口。

此解决方案仅实现标记的 InfoWindows。

这类似于您为没有聚类的普通标记实现自定义 InfoWindowAdapter 的方式，但额外的要求是您保留对当前所选项目的引用，以便您可以从中获取标题和片段 MyItem 实例，因为标记不像通常那样存储标题和片段。

请注意，由于所有数据都存储在 MyItem 引用中，因此扩展功能以在每个标记的信息窗口中显示任意数量的数据类型要容易得多。

首先，MyItem.java，其中包括标题和摘要的额外字段：

public class MyItem implements ClusterItem {
    private final LatLng mPosition;
    private final String mTitle;
    private final String mSnippet;

    public MyItem(double lat, double lng, String t, String s) {
        mPosition = new LatLng(lat, lng);
        mTitle = t;
        mSnippet = s;
    }

    @Override
    public LatLng getPosition() {
        return mPosition;
    }

    public String getTitle(){
        return mTitle;
    }

    public String getSnippet(){
        return mSnippet;
    }
}

这是完整的 Activity class，其中包括为使用 Cluster 库添加的每个标记支持 InfoWindows 的所有功能：

编辑：添加了对处理 InfoWindow 上的点击事件的支持，使 Activity 实现 OnClusterItemInfoWindowClickListener 并添加了 onClusterItemInfoWindowClick 回调。

public class MapsActivity extends AppCompatActivity
        implements ClusterManager.OnClusterItemInfoWindowClickListener<MyItem> {

    private ClusterManager<MyItem> mClusterManager;
    private MyItem clickedClusterItem;
    private GoogleMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_maps);

        setUpMapIfNeeded();
    }

    @Override
    protected void onResume() {
        super.onResume();
        setUpMapIfNeeded();
    }


    private void setUpMapIfNeeded() {
        // Do a null check to confirm that we have not already instantiated the map.
        if (mMap == null) {
            // Try to obtain the map from the SupportMapFragment.
            mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
                    .getMap();

            // Check if we were successful in obtaining the map.
            if (mMap != null) {
                setUpMap();
            }

        }
    }

    private void setUpMap() {

        mMap.getUiSettings().setMapToolbarEnabled(true);
        mMap.getUiSettings().setZoomControlsEnabled(true);
        mMap.setMyLocationEnabled(true);
        mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);

        mClusterManager = new ClusterManager<>(this, mMap);

        mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(37.779977,-122.413742), 10));

        mMap.setOnCameraChangeListener(mClusterManager);
        mMap.setOnMarkerClickListener(mClusterManager);

        mMap.setInfoWindowAdapter(mClusterManager.getMarkerManager());

        mMap.setOnInfoWindowClickListener(mClusterManager); //added
        mClusterManager.setOnClusterItemInfoWindowClickListener(this); //added

        mClusterManager
                .setOnClusterItemClickListener(new ClusterManager.OnClusterItemClickListener<MyItem>() {
                    @Override
                    public boolean onClusterItemClick(MyItem item) {
                        clickedClusterItem = item;
                        return false;
                    }
                });



        addItems();

        mClusterManager.getMarkerCollection().setOnInfoWindowAdapter(
                new MyCustomAdapterForItems());

    }

    private void addItems() {

        double latitude = 37.779977;
        double longitude = -122.413742;
        for (int i = 0; i < 10; i++) {
            double offset = i / 60d;

            double lat = latitude + offset;
            double lng = longitude + offset;
            MyItem offsetItem = new MyItem(lat, lng, "title " + i+1, "snippet " + i+1);
            mClusterManager.addItem(offsetItem);

        }

    }

    //added with edit
    @Override
    public void onClusterItemInfoWindowClick(MyItem myItem) {

        //Cluster item InfoWindow clicked, set title as action
        Intent i = new Intent(this, OtherActivity.class);
        i.setAction(myItem.getTitle());
        startActivity(i);

        //You may want to do different things for each InfoWindow:
        if (myItem.getTitle().equals("some title")){

            //do something specific to this InfoWindow....

        }

    }

    public class MyCustomAdapterForItems implements GoogleMap.InfoWindowAdapter {

        private final View myContentsView;

        MyCustomAdapterForItems() {
            myContentsView = getLayoutInflater().inflate(
                    R.layout.info_window, null);
        }
        @Override
        public View getInfoWindow(Marker marker) {

            TextView tvTitle = ((TextView) myContentsView
                    .findViewById(R.id.txtTitle));
            TextView tvSnippet = ((TextView) myContentsView
                    .findViewById(R.id.txtSnippet));

            tvTitle.setText(clickedClusterItem.getTitle());
            tvSnippet.setText(clickedClusterItem.getSnippet());

            return myContentsView;
        }

        @Override
        public View getInfoContents(Marker marker) {
            return null;
        }
    }
}

info_window.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="20dp"
    android:orientation="vertical"
    android:background="#000000">

    <TextView
        android:id="@+id/txtTitle"
        android:textColor="#D3649F"
        android:textStyle="bold"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/txtSnippet"
        android:textColor="#D3649F"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

结果：

初始启动：

正在缩小，开始聚类：

再次缩小，更多聚类：

然后，放大并单击单个标记：

然后点击另一个标记：

编辑：为了在自定义信息窗口周围显示 "speech bubble"，请使用 getInfoContents() 而不是 getInfoWindow():

public class MyCustomAdapterForItems implements GoogleMap.InfoWindowAdapter {

    private final View myContentsView;

    MyCustomAdapterForItems() {
        myContentsView = getLayoutInflater().inflate(
                R.layout.info_window, null);
    }

    @Override
    public View getInfoWindow(Marker marker) {
        return null;
    }

    @Override
    public View getInfoContents(Marker marker) {

        TextView tvTitle = ((TextView) myContentsView
                .findViewById(R.id.txtTitle));
        TextView tvSnippet = ((TextView) myContentsView
                .findViewById(R.id.txtSnippet));

        tvTitle.setText(clickedClusterItem.getTitle());
        tvSnippet.setText(clickedClusterItem.getSnippet());

        return myContentsView;
    }
}

结果：

Answer 3

您可以考虑以下方法：

public void initilizeMap() {
            googleMap = mFragment.getMap();
            googleMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
            googleMap.getUiSettings().setZoomControlsEnabled(true`enter code here`); // true to`enter code here`
            googleMap.getUiSettings().setZoomGesturesEnabled(true);
            googleMap.getUiSettings().setCompassEnabled(true);
            googleMap.getUiSettings().setMyLocationButtonEnabled(true);
            googleMap.getUiSettings().setRotateGesturesEnabled(true);
            if (googleMap == null) {
                Toast.makeText(getActivity(), "Sorry! unable to create maps",
                        Toast.LENGTH_SHORT).show();
            }
            mClusterManager = new ClusterManager<MyItem>(getActivity(),   googleMap );
//          googleMap.setInfoWindowAdapter(new CustomInfoWindowAdapter());
            googleMap.setOnMapLoadedCallback(this);
            googleMap.setMyLocationEnabled(true);
            googleMap.setBuildingsEnabled(true);
            googleMap.getUiSettings().setTiltGesturesEnabled(true);

MyItem offsetItem = new MyItem(Double.parseDouble(outletList.get(i).getMap_latitude()),
                                           Double.parseDouble(outletList.get(i).getMap_longitude()), title , address);
            mClusterManager.addItem(offsetItem);
            googleMap.setInfoWindowAdapter(new CustomInfoWindowAdapter(offsetItem));

}


    private class CustomInfoWindowAdapter implements InfoWindowAdapter {
        Marker marker;
        private View view;
        private MyItem items;

        public CustomInfoWindowAdapter(MyItem item) {
            view = getActivity().getLayoutInflater().inflate(
                    R.layout.custom_info_window, null);
            this.items = item;
        }

        @Override
        public View getInfoContents(Marker marker) {

            if (marker != null && marker.isInfoWindowShown()) {
                marker.hideInfoWindow();
                marker.showInfoWindow();
            }
            return null;
        }

        @Override
        public View getInfoWindow(final Marker marker) {
            this.marker = marker;

            String url = null;

            if (marker.getId() != null && markers != null && markers.size() > 0) {
                if (markers.get(marker.getId()) != null
                        && markers.get(marker.getId()) != null) {
                    url = markers.get(marker.getId());
                }
            }

            final ImageView image = ((ImageView) view.findViewById(R.id.badge));

            if (url != null && !url.equalsIgnoreCase("null")
                    && !url.equalsIgnoreCase("")) {
                imageLoader.displayImage(url, image, options,
                        new SimpleImageLoadingListener() {
                            @Override
                            public void onLoadingComplete(String imageUri,
                                    View view, Bitmap loadedImage) {
                                super.onLoadingComplete(imageUri, view,
                                        loadedImage);
                                getInfoContents(marker);
                            }
                        });
            } else {
                image.setImageResource(R.drawable.ic_launcher);
            }

            final String title = items.getTitle();
            Log.e(TAG, "TITLE : "+title);
            final TextView titleUi = ((TextView) view.findViewById(R.id.title));
            if (title != null) {
                titleUi.setText(title);
            } else {
                titleUi.setText("");
            }

            final String address = items.getAddress();
            final TextView snippetUi = ((TextView) view
                    .findViewById(R.id.snippet));
            if (address != null) {
                snippetUi.setText(address);
            } else {
                snippetUi.setText("");
            }

Android Maps Utils Clustering 显示信息窗口

Android Maps Utils Clustering show InfoWindow

java

android

google-maps

google-maps-markers

infowindow