android - 如何在谷歌地图 Android 上显示多个标记？

Question

我的项目有问题，我不知道如何使用数据库 mySql 中的经纬度数据在谷歌地图上显示多个标记..

这里是使用数组列表的代码:

private class SitesOverlay extends ItemizedOverlay<OverlayItem> {
    private List<OverlayItem> items=new ArrayList<OverlayItem>();

    public SitesOverlay(Drawable marker) {
      super(marker);

      boundCenterBottom(marker);


      //i want change this, calling the data from mysql automatically
      items.add(new OverlayItem(getPoint(40.748963847316034,
                                          -73.96807193756104),
                                "UN", "United Nations"));
      items.add(new OverlayItem(getPoint(40.76866299974387,
                                          -73.98268461227417),
                                "Lincoln Center",
                                "Home of Jazz at Lincoln Center"));
      items.add(new OverlayItem(getPoint(40.765136435316755,
                                          -73.97989511489868),
                                "Carnegie Hall",
              "Where you go with practice, practice, practice"));
      items.add(new OverlayItem(getPoint(40.70686417491799,
                                          -74.01572942733765),
                                "The Downtown Club",
                        "Original home of the Heisman Trophy"));

      populate();
    }

Answer 1

我认为你可以创建一个类作为 Positions 来取回属性

对于Position类，通过实现使用Keywords搜索位置的函数调用获取地理位置点的方法，返回地理位置