我在我的Android应用中使用了一个带有许多标记的Google地图。单击标记后,标题显示。但是我需要在点击该标题后打开一个包含更多值的新活动 - 这将显示在文本视图中。
我现在的解决方案现在有效,但每次打开相同的信息时 - 如果我点击任何标记,则传递最后一项的值。我需要每个标记传递它的值。
TCanvas
我还尝试将setOnInfoWindowClickListener放出for循环,但是不知道像place,info这样的变量。
答案 0 :(得分:1)
首先,定义一个MarkerInfo类,它将保存每个Marker的所有信息:
public class MarkerInfo {
public String mTitle;
public String mPlace;
public String mPlace2;
public String mPerexfull;
public String mImg1;
public String mInfo;
public MarkerInfo(String title, String place, String place2, String perexfull, String img1, String info) {
mTitle = title;
mPlace = place;
mPlace2 = place2;
mPerexfull = perexfull;
mImg1 = img1;
mInfo = info;
}
}
然后,将HashMap定义为成员变量,将Marker作为键,将MarkerInfo对象作为值:
GoogleMap mMap;
Map<Marker, MarkerInfo> mMarkerMap = new HashMap<>();
然后,为每个Marker创建一个MarkerInfo对象,并将其添加到HashMap中。然后,当单击InfoWindow时,从相应的MarkerInfo对象中检索信息:
void createMarkersFromJson(String json) throws JSONException {
JSONObject jsonObj = new JSONObject(json);
JSONArray actors = jsonObj.getJSONArray("result");
for (int i = 0; i < actors.length(); i++) {
final JSONObject c = actors.getJSONObject(i);
final double g1 = Double.parseDouble(c.getString("gps1"));
final double g2 = Double.parseDouble(c.getString("gps2"));
LatLng poss = new LatLng(g1,g2);
final String title = c.getString("name");
final String place = c.getString("place");
final String place2 = c.getString("place2");
final String perexfull = c.getString("perexfull");
final String img1 = c.getString("img1");
final String info = c.getString("info");
Marker marker = mMap.addMarker(new MarkerOptions().position(poss).title(title).icon(BitmapDescriptorFactory.fromResource(R.drawable.icon)));
MarkerInfo markerInfo = new MarkerInfo(title, place, place2, perexfull, img1, info);
mMarkerMap.put(marker, markerInfo);
}
//Set this only once:
mMap.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {
@Override
public void onInfoWindowClick(Marker marker) {
MarkerInfo markerInfo = mMarkerMap.get(marker);
Intent intent = new Intent(MapsActivity.this, SingleitemView.class);
intent.putExtra("place", markerInfo.mPlace);
intent.putExtra("place2", markerInfo.mPlace2);
intent.putExtra("perexfull", markerInfo.mPerexfull);
intent.putExtra("name", markerInfo.mTitle);
intent.putExtra("img1", markerInfo.mImg1);
intent.putExtra("info", markerInfo.mInfo);
startActivity(intent);
}
});
}
答案 1 :(得分:0)
不确定我是否完全正确地完成了它,但这个解决方案终于适合我了!我将setOnInfoWindowClickListener从循环中取出然后:
HashMap<Marker, String> values1 = new HashMap<Marker, String>();
HashMap<Marker, String> values2 = new HashMap<Marker, String>();
values1.put(marker, c.getString("place"));
values1.put(marker, c.getString("place2"));
然后在onInfoWindowClick里面我用过:
intent.putExtra("place", values1.get(marker));
intent.putExtra("place2", values2.get(marker));