请。启发我如何在我的for-loop上运行的每个地图标记上添加折线/线。我在添加和连接每个标记时遇到问题。 这是我偶然发现的代码。有人可以加强我的代码吗？
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.fragment_contact_us, container, false);
/*
// Instantiating the class PolylineOptions to plot polyline in the map
final PolylineOptions polylineOptions = new PolylineOptions();
b = (Button) v.findViewById(R.id.b1);
b.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
for (int i = 0; i < list_location.size(); i++) {
// Setting the color of the polyline
polylineOptions.color(Color.RED);
// Setting the width of the polyline
polylineOptions.width(3);
Double lat = Double.parseDouble(list_location.get(i).getLatitude());
Double Longitude = Double.parseDouble(list_location.get(i).getLongitude());
// Setting points of polyline
polylineOptions.add(new LatLng(lat, Longitude));
createMarker(i, list_location.get(i).getLatitude(), list_location.get(i).getLongitude(), list_location.get(i).getLocation());
}
// Adding the polyline to the map
map.addPolyline(polylineOptions);
}
});*/
return v;
}
public static void createProximity(String latitude, String longitude) {
Double lat = Double.parseDouble(latitude);
Double Longitude = Double.parseDouble(longitude);
map.addMarker(new MarkerOptions()
.position(new LatLng(lat, Longitude))
.anchor(0.5f, 0.5f)
.title("title")
.snippet("snippet")
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_CYAN)));
map.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(lat, Longitude), 9.0f));
}
public static void createMarker(int index, String latitude, String longitude, String snippet) {
// Adding the taped point to the ArrayList
BitmapDescriptor image = BitmapDescriptorFactory.fromResource(R.drawable.ic_menu_camera);
Double lat = Double.parseDouble(latitude);
Double Longitude = Double.parseDouble(longitude);
/* float color = 0;
if (index == 1)
color = BitmapDescriptorFactory.HUE_AZURE;
else if (index == list_location.size()-1)
color = BitmapDescriptorFactory.HUE_VIOLET;*/
if (index == 1)
image = BitmapDescriptorFactory.fromResource(R.drawable.ic_menu_gallery);
else if (index == list_location.size()-1)
image = BitmapDescriptorFactory.fromResource(R.drawable.ic_menu_slideshow);
else {
image = BitmapDescriptorFactory.fromResource(R.drawable.ic_menu_camera);
}
map.addMarker(new MarkerOptions()
.position(new LatLng(lat, Longitude))
.anchor(0.5f, 0.5f)
.title(snippet)
.snippet(list_location.get(index).getLatitude())
.icon(image));
map.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(lat, Longitude), 12.0f));
/*map.setInfoWindowAdapter(new GoogleMap.InfoWindowAdapter() {
@Override
public View getInfoWindow(Marker arg0) {
return null;
}
@Override
public View getInfoContents(Marker marker) {
LinearLayout info = new LinearLayout(this.getContext());
info.setOrientation(LinearLayout.VERTICAL);
TextView title = new TextView(getContext());
title.setTextColor(Color.BLACK);
title.setGravity(Gravity.CENTER);
title.setTypeface(null, Typeface.BOLD);
title.setText(marker.getTitle());
TextView snippet = new TextView(getContext());
snippet.setTextColor(Color.GRAY);
snippet.setText(marker.getSnippet());
TextView snippet3 = new TextView(getContext());
snippet3.setTextColor(Color.GRAY);
snippet3.setText(marker.getSnippet());
info.addView(title);
info.addView(snippet);
info.addView(snippet3);
return info;
}
});*/
map.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {
@Override
public void onInfoWindowClick(Marker marker) {
marker.hideInfoWindow();
}
});
/* map.setInfoWindowAdapter(new MarkerInfoWindowAdapter());
map.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {
@Override
public void onInfoWindowClick(Marker marker) {
for (int i = 0; i < list_location.size(); i++) {
Log.d("TAG", "getLatitude:" + list_location.get(i).getLatitude() + " getLongitude:" + list_location.get(i).getLongitude());
if (marker.getSnippet().equals(list_location.get(i).getLocation())) {
Log.d("TAG", "Selected Marker");
}
}
}
});
map.setInfoWindowAdapter(new GoogleMap.InfoWindowAdapter() {
@Override
public View getInfoWindow(Marker arg0) {
return null;
}
@Override
public View getInfoContents(Marker marker) {
LayoutInflater inflater = (LayoutInflater) getActivity().getSystemService(LAYOUT_INFLATER_SERVICE);
View myContentView = inflater.inflate(R.layout.marker_popup, null);
TextView loc = ((TextView) myContentView
.findViewById(R.id.textView2));
TextView plate_num = ((TextView) myContentView
.findViewById(R.id.textView4));
for (int i = 0; i < list_location.size(); i++) {
Log.d("TAG", "getLatitude:" + list_location.get(i).getLatitude() + " getLongitude:" + list_location.get(i).getLongitude());
if (marker.getSnippet().equals(list_location.get(i).getLocation())) {
Log.d("TAG", "Selected Marker");
}
loc.setText(list_location.get(i).getLatitude());
plate_num.setText(list_location.get(i).getLongitude());
}
*//* Button btnDismiss = (Button) myContentView.findViewById(R.id.dismissbtn);
btnDismiss.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View v) {
popupWindow.dismiss();
}
});*//*
return myContentView;
}
});*/
}
public class MarkerInfoWindowAdapter implements GoogleMap.InfoWindowAdapter {
public MarkerInfoWindowAdapter() {
}
@Override
public View getInfoWindow(Marker marker) {
return null;
}
@Override
public View getInfoContents(final Marker marker) {
View v = getActivity().getLayoutInflater().inflate(R.layout.marker_popup, null);
/* for (int i = 0; i < list_location.size(); i++) {
Log.d("TAG", "getLatitude:" + list_location.get(i).getLatitude() + " getLongitude:" + list_location.get(i).getLongitude());
if (marker.getSnippet().equals(list_location.get(i).getLocation())) {
Log.d("TAG", "Selected Marker");
}
}*/
Button b = (Button) v.findViewById(R.id.button2);
b.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View v) {
marker.hideInfoWindow();
}
});
TextView markerLabel = (TextView) v.findViewById(R.id.textView2);
markerLabel.setText("");
return v;
}
}
答案 0 :(得分：0)
只需对代码进行一些小改动：
PolylineOptions polylineOptions = new PolylineOptions();
b.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
for (int i = 0; i < list_location.size(); i++) {
// Instantiating the class PolylineOptions to plot polyline in the map
// Setting the color of the polyline
polylineOptions.color(Color.RED);
// Setting the width of the polyline
polylineOptions.width(3);
Double lat = Double.parseDouble(list_location.get(i).getLatitude());
Double Longitude = Double.parseDouble(list_location.get(i).getLongitude());
// Setting points of polyline
polylineOptions.add(new LatLng(lat, Longitude));
createMarker(i, list_location.get(i).getLatitude(), list_location.get(i).getLongitude(), list_location.get(i).getLocation());
}
// Adding the polyline to the map
map.addPolyline(polylineOptions);
}
});