如何更改标记图标被点击的内容？

Question

在我们的项目中,我们使用谷歌地图v2,我需要找到一种方法来点击引脚后更改图钉图标.此外,当需要点击另一个引脚时,我需要返回此引脚的初始图标.所以现在我们有这样的事情:

public ClusterManager.OnClusterItemClickListener<OurClusterItem> mClusterItemClickListener = new ClusterManager.OnClusterItemClickListener<OurClusterItem>() {

    @Override
    public boolean onClusterItemClick(OurClusterItem item) {
        // Some actions here
        return true;
    }
};

然后我们将此侦听器设置为map:

ClusterManager mClusterManager = new ClusterManager<OurClusterItem>(getActivity(), getMap());
mClusterManager.setOnClusterItemClickListener(mClusterItemClickListener);
googleMap.setOnMarkerClickListener(mClusterManager);

那么,有人可以为此提供解决方案吗？谢谢!

Answer 1

所以,我找到了它的解决方案 - 也许这对某人也有帮助.

因此,首先,我们需要使用自定义渲染器(继承自DefaultClusterRenderer).DefaultClusterRenderer有自己的缓存,包含ClusterItem对应的对应Marker:

public MarkerCache<T> mMarkerCache = new MarkerCache<T>();

所以我写了下一个方法 CustomClusterRenderer

public Marker getMarker(OurClusterItem clusterItem) {
    return mMarkerCache.get(clusterItem);
}

在它之后,我已经添加了我们的片段2变量:

private Marker mCurrentSelectedMarker;
private ClusterStore mCurrentSelectedClusterItem;

并改变实施ClusterItemClickListener:

public ClusterManager.OnClusterItemClickListener<OurClusterItem> mClusterItemClickListener = new ClusterManager.OnClusterItemClickListener<OurClusterItem>() {

    @Override
    public boolean onClusterItemClick(ClusterStore item) {
        // return to previous marker non-selected icon
        if (mCurrentSelectedMarker != null) {
            mCurrentSelectedMarker.setIcon(BitmapDescriptorFactory.fromResource(mCurrentSelectedClusterItem.getIconResourceId()));
        }
        Marker marker = mCustomRenderer.getMarker(item);
        if (marker != null) {
            mCurrentSelectedMarker = marker;
            mCurrentSelectedClusterItem = item;
            marker.setIcon(BitmapDescriptorFactory.fromResource(item.getIconSelResourceId()));
        }
        // some other code
        return true;
    }
};

这就是全部,它就像一个魅力.