android– 放大时不会隐藏群集标记

概述我正在尝试在我的地图上实现一个群集标记,它表现得有些奇怪,首先,它向我展示了群集标记,但也向我显示了点标记,这不应该发生,当我放大时群集标记仍然显示,我会添加一些图像来更好地解释它.publicclassMapaViagemextendsFragmentActivity{privateGoogleMapgoogleMap;

我正在尝试在我的地图上实现一个群集标记,它表现得有些奇怪,首先,它向我展示了群集标记,但也向我显示了点标记,这不应该发生,当我放大时群集标记仍然显示,我会添加一些图像来更好地解释它.

public class MapaViagem extends FragmentActivity {    private GoogleMap GoogleMap;    private String rm_IDViagem;    private List<ClIEnteModel> mClIEnteModel = new ArrayList<ClIEnteModel>();    private List<EnderecoModel> mEnderecoModel = new ArrayList<EnderecoModel>();    private Viagemmodel mViagemmodel = new Viagemmodel();    private ClusterManager<MyItem> mClusterManager;    @OverrIDe    protected voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.maps);         ArrayList<LatLng> coordList = new ArrayList<LatLng>();        try {            Bundle parametros = getIntent().getExtras();            rm_IDViagem = parametros.getString("ID_viagem");            Repositorio ca = new Repositorio(this);            mViagemmodel = ca.getViagemPorID(Integer.valueOf(rm_IDViagem));            Repositorio cl = new Repositorio(this);            mClIEnteModel = cl.getClIEntesViagem(Integer.valueOf(rm_IDViagem));            System.out.println("TEM CLIENTE " + mClIEnteModel.size());            if(mClIEnteModel != null) {                for (int i = 0; i < mClIEnteModel.size(); i++) {                    Repositorio mRepositorio = new Repositorio(this);                    mEnderecoModel = mRepositorio.getListaEnderecosDoClIEnte(Integer.valueOf(mClIEnteModel.get(i).getClIEntes_ID()));                    for (int j = 0; j < mEnderecoModel.size(); j++) {                        // Loading map                        initilizeMap();                        // Changing map type                        GoogleMap.setMapType(GoogleMap.MAP_TYPE_norMAL);                        // Showing / hIDing your current location                        GoogleMap.setMyLocationEnabled(true);                        // Enable / disable zooming controls                        GoogleMap.getUiSettings().setZoomControlsEnabled(true);                        // Enable / disable my location button                        GoogleMap.getUiSettings().setMyLocationbuttonEnabled(true);                        // Enable / disable Compass icon                        GoogleMap.getUiSettings().setCompassEnabled(true);                        // Enable / disable Rotate gesture                        GoogleMap.getUiSettings().setRotateGesturesEnabled(true);                        // Enable / disable zooming functionality                        GoogleMap.getUiSettings().setZoomGesturesEnabled(true);                        final float latitude = float.parsefloat(mEnderecoModel.get(j).getLatitude());                        final float longitude = float.parsefloat(mEnderecoModel.get(j).getLongitude());                        coordList.add(new LatLng(latitude, longitude));                        GoogleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(latitude, longitude), 10));                        mClusterManager = new ClusterManager<MyItem>(MapaViagem.this, GoogleMap);                        mClusterManager.setRenderer(new MyClusterRenderer(MapaViagem.this, GoogleMap, mClusterManager));                        GoogleMap.setonCamerachangelistener(mClusterManager);                        GoogleMap.setonMarkerClickListener(mClusterManager);                        addItems(coordList);                    }                }            }        } catch (Exception e) {            e.printstacktrace();        }    }    public class MyClusterRenderer extends DefaultClusterRenderer<MyItem> {        public MyClusterRenderer(Context context, GoogleMap map,                                 ClusterManager<MyItem> clusterManager) {            super(context, map, clusterManager);        }        @OverrIDe        protected voID onBeforeClusterItemRendered(MyItem item, MarkerOptions markerOptions) {            super.onBeforeClusterItemRendered(item, markerOptions);//            item.setTitle(mClIEnteModel.get(i));            markerOptions.Title(item.getTitle());        }        @OverrIDe        protected voID onClusterItemRendered(MyItem clusterItem, Marker marker) {            super.onClusterItemRendered(clusterItem, marker);            //here you have access to the marker itself        } @OverrIDe        protected boolean shouldRenderAsCluster(Cluster<MyItem> cluster) {            return cluster.getSize() > 3; // when count of markers is more than 3, render as cluster        }    }    private voID addItems(List<LatLng> markers) {        for (int i = 0; i < markers.size(); i++) {            MyItem offsetItem = new MyItem(markers.get(i));            mClusterManager.addItem(offsetItem);        }        mClusterManager.cluster();    }    private voID initilizeMap() {        if (GoogleMap == null) {            GoogleMap = ((MapFragment) getFragmentManager().findFragmentByID(                    R.ID.map)).getMap();            // check if map is created successfully or not            if (GoogleMap == null) {                Toast.makeText(getApplicationContext(),                        "Não foi possível carregar o mapa", Toast.LENGTH_SHORT)                        .show();            }        }    }    @OverrIDe    protected voID onResume() {        super.onResume();        initilizeMap();    }}

模型：

public class MyItem implements ClusterItem {    private LatLng mposition;    private String Title;    public MyItem(LatLng position){        mposition = position;    }    @OverrIDe    public LatLng getposition() {        return mposition;    }    public String getTitle() {        return Title;    }    public voID setTitle(String Title) {        this.Title = Title;    }}

解决方法:

首先,你需要定义,当你的ClusterManager应该聚类时,你应该覆盖MyClusterRenderer中的方法：

@OverrIDeprotected boolean shouldRenderAsCluster(Cluster<MyItem> cluster) {    return cluster.getSize() > 3; // when count of markers is more than 3, render as cluster}

其次,当您使用标记进行一些更改(例如添加,删除,更改标题,图标,位置)时,应调用cluster()方法.所以你的addItems方法应如下所示：

private voID addItems(List<LatLng> markers) {    for (int i = 0; i < markers.size(); i++) {        MyItem offsetItem = new MyItem(markers.get(i));        mClusterManager.addItem(offsetItem);    }    mClusterManager.cluster();}

编辑：

我再一次看你的代码,发现你忘了设置聚类算法,它应该是：

    ...    mClusterManager = new ClusterManager<MyItem>(MapaViagem.this, GoogleMap);    mClusterManager.setAlgorithm(new GrIDBasedAlgorithm<MyItem>());    mClusterManager.setRenderer(new MyClusterRenderer(MapaViagem.this, GoogleMap, mClusterManager));    ...

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