我如何从谷歌地图JSON数组发布多个标记 [英] How do I post multiple markers from a JSON array on google maps
问题描述
我有一个Android应用程序带有一个数组从网站
I have an android app that takes an array from a website
{D：[{纬度 - 1.0东经： - 1.0，时间：下午7点14分01/18/2038\",\"most_recent\":\"1\",\"user_id\":\"4e3f2c6659f25a0f8400000b\"},{\"latitude\":-1.0,\"longitude\":-1.0,\"time\":\"07:14下午01/18/2038\",\"most_recent\":\"0\",\"user_id\":\"4e3f2c6659f25a0f8400000b\"},{\"latitude\":-1.0,\"longitude\":-1.0,\"time\":\"07:14下午01/18/2038\",\"most_recent\":\"0\",\"user_id\":\"4e3f2c6659f25a0f8400000b\"},{\"latitude\":34.0608,\"longitude\":-118.454,\"time\":\"07:14下午01/18/2038\",\"most_recent\":\"1\",\"user_id\":\"4e3da65e59f25a3956000005\"},{\"latitude\":34.0608,\"longitude\":-118.454,\"time\":\"07:14下午01/18/2038\",\"most_recent\":\"0\",\"user_id\":\"4e3da65e59f25a3956000005\"},{\"latitude\":34.0608,\"longitude\":-118.454,\"time\":\"07:14 PM 2038年1月18日，most_recent：0，USER_ID：4e3da65e59f25a3956000005}]}
{"d":[{"latitude":-1.0,"longitude":-1.0,"time":"07:14 PM 01/18/2038","most_recent":"1","user_id":"4e3f2c6659f25a0f8400000b"},{"latitude":-1.0,"longitude":-1.0,"time":"07:14 PM 01/18/2038","most_recent":"0","user_id":"4e3f2c6659f25a0f8400000b"},{"latitude":-1.0,"longitude":-1.0,"time":"07:14 PM 01/18/2038","most_recent":"0","user_id":"4e3f2c6659f25a0f8400000b"},{"latitude":34.0608,"longitude":-118.454,"time":"07:14 PM 01/18/2038","most_recent":"1","user_id":"4e3da65e59f25a3956000005"},{"latitude":34.0608,"longitude":-118.454,"time":"07:14 PM 01/18/2038","most_recent":"0","user_id":"4e3da65e59f25a3956000005"},{"latitude":34.0608,"longitude":-118.454,"time":"07:14 PM 01/18/2038","most_recent":"0","user_id":"4e3da65e59f25a3956000005"}]}
你可以看到每个项目都有一个经度和纬度组成部分，也是一个id。
as you can see each item has a latitude and longitude component as well as an id.
如何修改这个程序来显示一个绿色针 R.drawable.greenpin 或蓝色针 R.drawable.bluepin 为USER_ID：4e3f2c6659f25a0f8400000b或USER_ID：阵列中的4e3da65e59f25a3956000005为每一个项目（应该是三个蓝色销和在这些位置的三个绿色销）
How do I modify this program to show either a green pin R.drawable.greenpin or a blue pin R.drawable.bluepin for "user_id":"4e3f2c6659f25a0f8400000b" or "user_id":"4e3da65e59f25a3956000005" for each of the items in the array ( should be three blue pins and three green pins at these locations)
public boolean draw(Canvas canvas, MapView mapView, boolean shadow, long when)
{
super.draw(canvas,mapView,shadow);
Point screenPts=new Point();
mapView.getProjection().toPixels(p,screenPts);
Bitmap bmp=BitmapFactory.decodeResource(getResources(),R.drawable.greenpin);
canvas.drawBitmap(bmp,screenPts.x,screenPts.y-50,null);
return true;
}
}
//to add the location marker
MapOverlay mapOverlay=new MapOverlay();
List<Overlay> listOfOVerlays=mapView.getOverlays();
listOfOverlays.clear();
listOfOverlays.add(mapOverlay);
这是我有混淆我有点，因为它提请根据屏幕点的点的方法。我宁愿由阵列的经度和纬度插入销添加这些点。
The method that I have confuses me a bit because it draws the point based on the screen point. I would rather add these points by inserting the pins by the longitude and latitude of the arrays.
推荐答案
我不理解什么ü想，但我的情况下，对我来说这code的工作，在适当的纬度，经度地址放标志物。
I don't understanding what u want but in my case this code work for me, for put marker in appropriate lat,long address.
myPoint = new GeoPoint(((int) LATITUDE_Add) * 1E6),(int)LONGITUDE_Add) * 1E6));
drawable = getResources().getDrawable(R.drawable.marker_blue);
itemizedoverlay = new MapOverLay(drawable, MapPage.this, mapview);
OverlayItem overlayitem = new OverlayItem(myPoint, address, "");
itemizedoverlay.addOverlay(overlayitem);
mapOverlays.add(itemizedoverlay);
mapview.getController().animateTo(myPoint);
日Thnx。
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