@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_discover);
mapView = (MapView) findViewById(R.id.map);
mapView.onCreate(savedInstanceState);
mark = new MarkerOptions[5];
LatLng lat[] = new LatLng[5];
lat[0] = new LatLng(31.2901513159, 120.5917328110);
lat[1] = new LatLng(31.28015100, 120.59731000);
lat[2] = new LatLng(31.180111000, 120.1232322);
lat[3] = new LatLng(32.23123213, 121.32132);
lat[4] = new LatLng(29.321321, 11.32123321);
init();
for (int i = 0; i < 5; i++) {
mark[i] = new MarkerOptions();
mark[i].position(lat[i]);
mark[i].title("SBicycle store").snippet("the first SBicycle store in suzhou");
mark[i].icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_bicycle));
Marker marker = aMap.addMarker(mark[i]);
}
}
/** 获取视野内的marker 根据聚合算法合成自定义的marker 显示视野内的marker */
private void resetMarks() {
// 开始刷新界面
Projection projection = aMap.getProjection();
Point p = null;
markerOptionsListInView.clear();
// 获取在当前视野内的marker;提高效率
for (MarkerOptions mp : markerOptionsList) {
p = projection.toScreenLocation(mp.getPosition());
if (p.x < 0 || p.y < 0 || p.x > width || p.y > height) {
// 不添加到计算的列表中
} else {
markerOptionsListInView.add(mp);
}
}
// 自定义的聚合类MarkerCluster
ArrayList<MarkerCluster> clustersMarker = new ArrayList<MarkerCluster>();
for (MarkerOptions mp : markerOptionsListInView) {
if (clustersMarker.size() == 0) {
clustersMarker.add(
new MarkerCluster(MainActivity.this, mp, projection, gridSize)); // 100根据自己需求调整
} else {
boolean isIn = false;
for (MarkerCluster cluster : clustersMarker) {
if (cluster.getBounds().contains(mp.getPosition())) {
cluster.addMarker(mp);
isIn = true;
break;
}
}
if (!isIn) {
clustersMarker.add(new MarkerCluster(MainActivity.this, mp, projection, gridSize));
}
}
}
// 先清除地图上所有覆盖物
aMap.clear();
for (MarkerCluster markerCluster : clustersMarker) {
markerCluster.setpositionAndIcon(); // 设置聚合点的位置和icon
aMap.addMarker(markerCluster.getOptions()); // 重新添加
}
}
public void dispatchMessage(android.os.Message msg) {
try {
jsonArray = new JSONArray(jsonResult);
onClearMap(amap);
for (int i = 0; i < jsonArray.length(); i++) {
LatLng startpt =
new LatLng(
StringToDouble(jsonArray.getJSONObject(i).getString("LAT")),
StringToDouble(jsonArray.getJSONObject(i).getString("LONG1"))); // 创建一个点对象
amap.addMarker(
new MarkerOptions()
.title("公司名称 ：" + jsonArray.getJSONObject(i).getString("NAME"))
.snippet("公司地址 ：" + jsonArray.getJSONObject(i).getString("ADDRESS"))
.position(startpt));
sx = sy = ex = ey = 0;
SelectionView.this.invalidate();
}
} catch (JSONException e) {
sx = sy = ex = ey = 0;
SelectionView.this.invalidate();
Toast.makeText(context, "区域内无企业实体..", Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
