百度地图点聚合自定义marker

效果如图

请先下载：http://download.csdn.net/download/m18860232520/10166118

自定义ClusterItem类

 /**
     * 每个Marker点，包含Marker点坐标以及图标
     */
    public class MyClusterItem implements ClusterItem {
        private final LatLng mPosition;
        private RealTimeLocationBean.ListBean listBean;//方向
        private View view;//mark布局

        public MyClusterItem(RealTimeLocationBean.ListBean listBean) {
            mPosition = new LatLng(Double.valueOf(listBean.getBlat()), Double.valueOf(listBean.getBlng()));
            this.listBean = listBean;
            ViewHolder viewHolder;

            view = View.inflate(RealTimeActivity.this, R.layout.mark_layout, null);
            viewHolder = new ViewHolder(view);
            view.setTag(viewHolder);

            if (Preferences.getBoolean("carNumber", false)) {
                viewHolder.textView.setText(listBean.getCarPlate());
            } else {
                viewHolder.textView.setText(listBean.getCarName());
            }
            if (Integer.valueOf(listBean.getState()) < 9) {
                viewHolder.imageView.setRotation(Float.valueOf(listBean.getDrct()));
            } else {
                viewHolder.imageView.setRotation(0);
            }
            viewHolder.imageView.setImageBitmap(ImageUtils.getImageFromAssetsFile("car/" + listBean.getIcon()));

 

//    public static Bitmap getImageFromAssetsFile(String fileName) {
//        Bitmap image = null;
//        AssetManager am = App.getAppContext().getResources().getAssets();
//        try {
//            InputStream is = am.open(fileName);
//            image = BitmapFactory.decodeStream(is);
//            is.close();
//        } catch (IOException e) {
//            e.printStackTrace();
//        }
//        return image;
//    }

//下载到本地进行的加载//

     File file = new File(ToolsUtil.imgPath+"/"+listBean.getState()+".png");//            if (file.exists()) {//                Bitmap bm = BitmapFactory.decodeFile(ToolsUtil.imgPath+"/"+listBean.getState()+".png");//                //将图片显示到ImageView中//                viewHolder.imageView.setImageBitmap(bm);//            }        }        @Override        public LatLng getPosition() {            return mPosition;        }        @Override        public String getCarId() {            return listBean.getCarId();        }        @Override        public RealTimeLocationBean.ListBean getListBean() {            return listBean;        }        @Override        public BitmapDescriptor getBitmapDescriptor() {            return BitmapDescriptorFactory.fromView(view);        }        class ViewHolder {            @BindView(R.id.img_mark_pic)            ImageView imageView;            @BindView(R.id.tv_mark_name)            TextView textView;            ViewHolder(View view) {                ButterKnife.bind(this, view);            }        }    }

在要进行聚合的类中

private List items = new ArrayList<>();//marker点集合

// 定义点聚合管理类ClusterManager mClusterManager = new ClusterManager<>(this, mBaiduMap);

items.add(new MyClusterItem(bean));

mClusterManager.addItems(items);

//mClusterManager.cluster();//设置后不用移动更新点状态

//mBaiduMap.clear();//清理地图
//items.clear();//清除原来marker的数据
//mClusterManager.clearItems();//清除原来marker的数据

mMapView.showZoomControls(false);//是否显示缩小放大按钮// 设置地图监听，当地图状态发生改变时，进行点聚合运算mBaiduMap.setOnMapStatusChangeListener(mClusterManager);// 设置maker点击时的响应mBaiduMap.setOnMarkerClickListener(mClusterManager);

//集合点展开事件
mClusterManager.setOnClusterClickListener(cluster -> {
    List items = (List) cluster.getItems();
    LatLngBounds.Builder builder2 = new LatLngBounds.Builder();

    for (MyClusterItem MyClusterItem : items) {
        builder2 = builder2.include(MyClusterItem.getPosition());
    }

    LatLngBounds latlngBounds = builder2.build();
    MapStatusUpdate u = MapStatusUpdateFactory.newLatLngBounds(latlngBounds, mMapView.getWidth(), mMapView.getHeight());
    mBaiduMap.animateMapStatus(u);
    return false;
});
//Marker 监听事件
mClusterManager.setOnClusterItemClickListener(item -> {
    setMarkPopupWindow(item.getListBean().getCarId(), item.getPosition());
    return false;
});

//每次重新设置数据时 设置中心点的方法自动计算 显示地图所有点 
RealTimeLocationBean.ListBean//是包含marker点信息的类
private void zoomToSpan(List listBean) {
    if (listBean.size() > 0) {
        LatLngBounds.Builder builder = new LatLngBounds.Builder();
        for (RealTimeLocationBean.ListBean bean : listBean) {
            // polyline 中的点可能太多，只按marker 缩放 
            if (bean.getBlat().equals("") || bean.getBlng().equals("")) continue;
            builder.include(new LatLng(Double.valueOf(bean.getBlat()), Double.valueOf(bean.getBlng())));
        }
        mBaiduMap.setMapStatus(MapStatusUpdateFactory.newLatLngBounds(builder.build()));
    }
}

 

/**
 * 重新设置设置点数据
 */
private void setMarkDates(List listBean) {
    if (listBean == null || listBean.size() <= 0) return;
    mBaiduMap.clear();
    items.clear();
    mClusterManager.clearItems();
    for (RealTimeLocationBean.ListBean bean : listBean) {
        if (bean.getBlng().equals("") || bean.getBlat().equals("")) continue;
        items.add(new MyClusterItem(bean));
    }
    mClusterManager.addItems(items);
    mClusterManager.cluster();//设置后不用移动更新点状态
    zoomToSpan(listBean);
}

//清除全部
imgMapClear.setOnClickListener(view -> {
    mBaiduMap.clear();
    mClusterManager.clearItems();//清除聚合点
    saveListBean.clear();
    mBaiduMap.setMapStatus(MapStatusUpdateFactory.newMapStatus(mBaiduMap.getMapStatus()));//刷新地图
});
判断是否聚合if (Preferences.getBoolean("point", true)) {
mClusterManager.setMackSize(2);//聚合起始点2个
} else {
mClusterManager.setMackSize(10000);
}

NonHierarchicalDistanceBasedAlgorithm 下 控制点聚合范围
public static final int MAX_DISTANCE_AT_ZOOM = 200; // essentially 100 dp.设置点聚合距离/**
* ClusterItem represents a marker on the map.
*/
public interface ClusterItem {//接口下方法按需求自行更改

/**
* The position of this marker. This must always return the same value.
*/
LatLng getPosition();//点

String getCarId();//车辆ID

RealTimeLocationBean.ListBean getListBean();//方向

BitmapDescriptor getBitmapDescriptor();//图片
}

1.如果marker点的图片要求加载网络图，而且不进行更改的可以提供思路进入之前先下载图片到本地，然后Bitmap bm = BitmapFactory.decodeFile(ToolsUtil.imgPath+"/"+listBean.getState()+".png");
imageView.setImageBitmap(bm)

 

进行设置2.如果图片过多，同时需要放在本地又不想通过id获取，建议放在assets 文件夹中，通过以下方法进行获取imageView.setImageBitmap(ImageUtils.getImageFromAssetsFile("car/" + listBean.getIcon()));
public static Bitmap getImageFromAssetsFile(String fileName) {
    Bitmap image = null;
    AssetManager am = App.getAppContext().getResources().getAssets();
    try {
        InputStream is = am.open(fileName);
        image = BitmapFactory.decodeStream(is);
        is.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return image;
}

如同这种需要数字作为文件名的：