Question

找不到setOnCameraIdleListener（）方法在Android谷歌地图集群。

我编译了这个库：

依赖项{编译＆＃39; com.google.maps.android：机器人-MAPS-utils的：0.5 +＆＃39;}

public class ClusteringDemoActivity extends MapsActivity {
private ClusterManager<MyItem> mClusterManager;

@Override
protected void startDemo() {
    getMap().moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(51.503186, -0.126446), 10));


    mClusterManager = new ClusterManager<MyItem>(this, getMap());



   getMap().setOnCameraIdleListener(mClusterManager);
    getMap().setOnMarkerClickListener(mClusterManager);


    addItems();
}
private void addItems() {


    double lat = 51.5145160;
    double lng = -0.1270060;


    for (int i = 0; i < 10; i++) {
        double offset = i / 60d;
        lat = lat + offset;
        lng = lng + offset;
        MyItem offsetItem = new MyItem(lat, lng);
        mClusterManager.addItem(offsetItem);
    }
}
}

`

Answer 1

我猜您使用的旧版google play服务并不包含相对于GoogleMap类模型 setOnCameraIdleListener 方法的实现。

因此，请尝试通过放置或编辑build.gradle文件来升级播放服务：

编译com.google.android.gms：播放服务：11.0.1＆＃39;

Answer 2

我通过编辑build.gradle文件来解决它：

compile 'com.google.maps.android:android-maps-utils:0.5'

Answer 3

请尝试这个

MarkerClustering.java

import android.app.Activity;
import android.util.Log;

import com.google.android.gms.maps.GoogleMap;
import com.google.maps.android.clustering.ClusterManager;

public class MarkerClustering implements GoogleMap.OnCameraIdleListener {

    private static final String TAG = MarkerClustering.class.getSimpleName();

    public MarkerClustering(Activity activity, GoogleMap googleMap) {
        try {
            ClusterManager<CustomClusterItem> clusterManager = new ClusterManager<>(activity, googleMap);

            MarkerRenderer markerRenderer = new MarkerRenderer(activity, googleMap, clusterManager, this);
            clusterManager.setRenderer(markerRenderer);

            googleMap.setOnCameraIdleListener(clusterManager);
            googleMap.setOnMarkerClickListener(clusterManager);
        } catch (Exception e) {
            Log.e(TAG, Log.getStackTraceString(e));
        }
    }

    @Override
    public void onCameraIdle() {
//        Your code
    }
}

MarkerRenderer.java

import android.content.Context;

import com.google.android.gms.maps.GoogleMap;
import com.google.maps.android.clustering.ClusterManager;
import com.google.maps.android.clustering.view.DefaultClusterRenderer;

public class MarkerRenderer extends DefaultClusterRenderer<CustomClusterItem> implements GoogleMap.OnCameraIdleListener {
    private GoogleMap.OnCameraIdleListener onCameraIdleListener;

    public MarkerRenderer(Context context, GoogleMap googleMap, ClusterManager<CustomClusterItem> clusterManager, GoogleMap.OnCameraIdleListener onCameraIdleListener) {
        super(context, googleMap, clusterManager);
        this.onCameraIdleListener = onCameraIdleListener;
    }

    @Override
    public void onCameraIdle() {
        if (onCameraIdleListener != null) {
            onCameraIdleListener.onCameraIdle();
        }
    }
}

您可以使用默认ClusterItem。如果需要，请按如下所示的自定义类对其进行自定义。

CustomClusterItem.java

import com.google.android.gms.maps.model.LatLng;
import com.google.maps.android.clustering.ClusterItem;

public class CustomClusterItem implements ClusterItem {
    private final LatLng latLng;

    CustomClusterItem(LatLng latLng) {
        this.latLng = latLng;
    }

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

setOnCameraIdleListener找不到android谷歌地图集群

3 个答案: