Android上Google地图的缩放事件

借助Google Maps Android API
v2，您可以使用GoogleMap.OnCameraChangeListener，如下所示：

mMap.setonCameraChangeListener(new onCameraChangeListener() {    private float currentZoom = -1;    @Override    public void onCameraChange(CameraPosition pos) {        if (pos.zoom != currentZoom){ currentZoom = pos.zoom; // do you action here        }    }});