多邊形沒有關閉

Question

幫助，我想繪製一個多邊形，我的多邊形沒有關閉，我的座標是正確的。最後一點不能與其他人連接以形成多邊形。我不確定我做錯了什麼。由於

screenshot http://i65.tinypic.com/29c9i89.jpg

import android.app.Activity; 
import android.content.Context; 
import android.content.Intent; 
import android.graphics.Canvas; 
import android.graphics.Color; 
import android.graphics.Paint; 

import android.view.Gravity; 
import android.view.View; 
import android.widget.Button; 
import android.widget.LinearLayout; 
import android.widget.TextView; 
import android.widget.ZoomButton; 

import com.google.android.gms.maps.CameraUpdateFactory; 
import com.google.android.gms.maps.GoogleMap; 
import com.google.android.gms.maps.MapFragment; 
import com.google.android.gms.maps.OnMapReadyCallback; 
import com.google.android.gms.maps.SupportMapFragment; 
import android.app.AppOpsManager; 


import com.google.android.gms.maps.model.BitmapDescriptorFactory; 
import com.google.android.gms.maps.model.LatLng; 
import com.google.android.gms.maps.model.Marker; 
import com.google.android.gms.maps.model.MarkerOptions; 
import com.google.android.gms.appindexing.Action; 
import com.google.android.gms.appindexing.AppIndex; 
import com.google.android.gms.common.api.GoogleApiClient; 
import com.google.android.gms.maps.model.Polygon; 
import com.google.android.gms.maps.model.PolygonOptions; 
import com.google.android.gms.maps.model.Polyline; 
import com.google.android.gms.maps.model.PolylineOptions; 

    import java.util.Map; 


public class MapsActivity extends FragmentActivity implements OnMapReadyCallback { 

private GoogleMap mMap; 


@Override 
protected void onCreate(Bundle savedinstancestate) { 
    super.onCreate(savedinstancestate); 
    setContentView(R.layout.activity_maps); 

    final Button button1 = (Button) findViewById(R.id.buttonMaps); 
    final Button button2 = (Button) findViewById(R.id.buttonMaps2); 
    final Button button3 = (Button) findViewById(R.id.buttonMaps3); 
    final Button button4 = (Button) findViewById(R.id.buttonMaps4); 
    final Button button5 = (Button) findViewById(R.id.buttonMaps5); 
    final Button button6 = (Button) findViewById(R.id.buttonMaps6); 
    final Button button7 = (Button) findViewById(R.id.buttonMaps7); 
    final Button button8 = (Button) findViewById(R.id.buttonMaps8); 
    final Button button9 = (Button) findViewById(R.id.buttonMaps9); 
    final Button button10 = (Button) findViewById(R.id.buttonMaps10); 


    button2.setVisibility(View.INVISIBLE); 
    button3.setVisibility(View.INVISIBLE); 
    button4.setVisibility(View.INVISIBLE); 
    button5.setVisibility(View.INVISIBLE); 
    button6.setVisibility(View.INVISIBLE); 
    button7.setVisibility(View.INVISIBLE); 
    button8.setVisibility(View.INVISIBLE); 
    button9.setVisibility(View.INVISIBLE); 
    button10.setVisibility(View.INVISIBLE); 


    button1.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 


      mMap.clear(); 
      if (button1.isShown()) { 

       Polygon polygon = mMap.addPolygon(new PolygonOptions() 
         .add(new LatLng(6.519,3.368),new LatLng(6.520,3.376), new LatLng(6.522, 3.378), new LatLng(6.523,3.382), new LatLng(6.524,3.390), new LatLng(6.524, 3.999),new LatLng(6.523, 3.406),new LatLng(6.520, 3.404),new LatLng(6.518, 3.406),new LatLng(6.516, 3.407),new LatLng(6.511, 3.409), new LatLng(6.509, 3.410),new LatLng(6.504, 3.410), new LatLng(6.501, 3.407), new LatLng(6.497, 3.402),new LatLng(6.494, 3.399),new LatLng(6.492, 3.397),new LatLng(6.487, 3.397),new LatLng(6.484, 3.398),new LatLng(6.481, 3.396),new LatLng(6.477, 3.395),new LatLng(6.475, 3.395),new LatLng(6.472, 3.395),new LatLng(6.468, 3.394),new LatLng(6.467, 3.387),new LatLng(6.463, 3.381),new LatLng(6.467, 3.379),new LatLng(6.468, 3.377),new LatLng(6.469, 3.374),new LatLng(6.468, 3.370),new LatLng(6.467, 3.365),new LatLng(6.472, 3.364),new LatLng(6.475, 3.365),new LatLng(6.478, 3.366),new LatLng(6.479, 3.367),new LatLng(6.481, 3.369),new LatLng(6.481, 3.372),new LatLng(6.481, 3.376),new LatLng(6.480, 3.381),new LatLng(6.482, 3.384),new LatLng(6.519,3.368)) 
         .strokeColor(Color.BLUE) 
         .geodesic(true)); 

       mMap.addMarker(new MarkerOptions().position(new LatLng(6.5084, 3.3842)).title("Lagos Mainland").snippet("My Location").icon(BitmapDescriptorFactory.fromResource(R.mipmap.ic_launcher))); 
       button2.setVisibility(View.VISIBLE); 
       button3.setVisibility(View.VISIBLE); 
       button4.setVisibility(View.VISIBLE); 
       button5.setVisibility(View.VISIBLE); 
       button6.setVisibility(View.VISIBLE); 
       button7.setVisibility(View.VISIBLE); 
       button8.setVisibility(View.VISIBLE); 
       button9.setVisibility(View.VISIBLE); 
       button10.setVisibility(View.VISIBLE); 



      } 
     } 

    }); 

Answer 1

多邊形正確drawed。 問題出在新LatLng（6.524,3.99）。如果您爲每個LatLng添加標記，您可以觀看它。

試試這個，並希望它有幫助。

mMap.addMarker(new MarkerOptions().position(new LatLng(6.524, 3.999)).title("E")); 

mMap.addMarker(new MarkerOptions().position(new LatLng(6.519,3.368)).title("P01")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.520,3.376)).title("P02")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.522, 3.378)).title("P03")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.523,3.382)).title("P04")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.524,3.390)).title("P05")); 
//Point far 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.524, 3.999)).title("P06")); //point far 

mMap.addMarker(new MarkerOptions().position(new LatLng(6.523, 3.406)).title("P07")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.520, 3.404)).title("P08")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.518, 3.406)).title("P09")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.516, 3.407)).title("P10")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.511, 3.409)).title("P11")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.509, 3.410)).title("P12")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.504, 3.410)).title("P13")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.501, 3.407)).title("P14")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.497, 3.402)).title("P15")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.494, 3.399)).title("P16")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.492, 3.397)).title("P17")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.487, 3.397)).title("P18")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.484, 3.398)).title("P19")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.481, 3.396)).title("P20")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.477, 3.395)).title("P21")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.475, 3.395)).title("P22")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.472, 3.395)).title("P23")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.468, 3.394)).title("P24")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.467, 3.387)).title("P25")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.463, 3.381)).title("P26")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.467, 3.379)).title("P27")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.468, 3.377)).title("P28")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.469, 3.374)).title("P29")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.468, 3.370)).title("P30")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.467, 3.365)).title("P31")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.472, 3.364)).title("P32")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.475, 3.365)).title("P33")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.478, 3.366)).title("P34")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.479, 3.367)).title("P35")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.481, 3.369)).title("P36")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.481, 3.372)).title("P37")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.481, 3.376)).title("P38")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.480, 3.381)).title("P39")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.482, 3.384)).title("P40")); 
mMap.addMarker(new MarkerOptions().position(new LatLng(6.519,3.368)).title("P41"));