如何从Osmdroid映射中删除标记 [英] How to remove Markers from Osmdroid Map

问题描述

我正在创建一个Android应用程序，需要在地图上设置标记.而且由于我的应用程序需要离线功能，因此我需要使用Osmdroid解决此问题.现在我的问题是地图上的标记，我可以使用Markers或ItemizedOverlay轻松添加它们，但是我遇到的问题是我无法从地图上删除标记.

I'm creating an Android Application where i need to set markers on the map. And since my App requires Offline function i need to use Osmdroid to solve this problem. Now my issue is the markers on the map, which i can easily add them by using Markers or the ItemizedOverlay, but the issue i'm having is that i cannot remove markers from the map.

我用来添加标记的代码是这样的:

The code i have used for adding markers is this one:

    Marker marker = new Marker(mapView);
    marker.setPosition(new GeoPoint(41.3746312,19.7710733));
    marker.setIcon(getResources().getDrawable(R.drawable.marker));
    marker.setImage(getResources().getDrawable(R.drawable.marker));
    marker.setTitle("Marker");
    marker.setInfoWindow(null);
    marker.showInfoWindow();
    mapView.getOverlays().add(marker);
    mapView.invalidate();

但是我在删除它们时遇到了问题，因为删除它的唯一方法是:

but i'm encountering issues on removing them since the only way to remove it is:

    mapView.getOverlays().clear();

我需要删除一个特定的标记，而不是同时删除所有标记.

And i need to remove a specific marker instead of all of them at the same time.

推荐答案

要删除特定标记，应使用:

For removing specific marker you should use:

    mapView.getOverlays().remove(overlay);
    mapView.invalidate();

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