if (wodeweizhiPoint != null) { if (wodeweizhiPoint.getLatitudeE6() != 0) { float chufajingdu = (float) (wodeweizhiPoint.getLongitudeE6() / 1E6); float chufaweidu = (float) (wodeweizhiPoint.getLatitudeE6() / 1E6); float daodajingdu = (float) (AppConstant.PointZuoBiao.liangxiangDaoHangPoint.getLongitudeE6() / 1E6); float daodaweidu = (float) (AppConstant.PointZuoBiao.liangxiangDaoHangPoint.getLatitudeE6() / 1E6); // 标记一个点 // Intent i = new // Intent(Intent.ACTION_VIEW,Uri.parse("http://ditu.google.cn/maps?hl=zh&mrt=loc&q=31.249351,121.45905")); // 从哪到哪的路线 Intent i = new Intent(Intent.ACTION_VIEW,Uri.parse("http://ditu.google.cn/maps?f=d&source=s_d&saddr=" + chufaweidu + "," + chufajingdu + "&daddr=" + daodaweidu + "," + daodajingdu + "&hl=zh")); //如果强制使用googlemap地图客户端打开，就加下面两句 i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK& Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); i.setClassName("com.google.android.apps.maps","com.google.android.maps.MapsActivity"); startActivity(i); } } else { AlertUtils.ToastAlert(mContext, “由于无法获取到您的位置，所以暂时无法提供导航”); }