我正在尝试在当前位置和另一个点之间绘制路线。我编写的代码可以检查当前位置，并在地图上点击地图上的点。目前，该计划运作良好， 但我想在当前位置和新点之间绘制另一条路线（点女巫我在地图点击监听器上添加了地图）。 我的代码如下，有谁知道如何在我的代码中添加这个逻辑？
public class GPS extends Activity implements
OnMyLocationChangeListener,OnMapClickListener,
OnMapLongClickListener, OnMarkerDragListener {
final int RQS_GooglePlayServices = 1;
private GoogleMap myMap;
Circle myCircle;
Location myLocation;
TextView tvLocInfo, GPSLocation;
LatLng latLng;
boolean markerClicked;
ArrayList<LatLng> markerPoints;
Polygon polygon;
public Button btnline;
double Clicklatitude, Clicklongitude, latitude, longitude;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.gps);
markerPoints=new ArrayList<LatLng>();
btnline = (Button) findViewById(R.id.button1);
tvLocInfo = (TextView) findViewById(R.id.GpsTxt);
GPSLocation = (TextView) findViewById(R.id.GPSLocation);
FragmentManager myFragmentManager = getFragmentManager();
MapFragment myMapFragment = (MapFragment) myFragmentManager
.findFragmentById(R.id.GpsMap);
myMap = myMapFragment.getMap();
myMap.setMyLocationEnabled(true);
myMap.setOnMyLocationChangeListener(this);
myMap.setOnMapClickListener(this);
myMap.setOnMapLongClickListener(this);
myMap.setOnMarkerDragListener(this);
myMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
myMap.setMyLocationEnabled(true);
myMap.setOnMyLocationChangeListener(this);
markerClicked = false;
btnline.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
}
});
}
@Override
protected void onResume() {
super.onResume();
int resultCode = GooglePlayServicesUtil
.isGooglePlayServicesAvailable(getApplicationContext());
if (resultCode == ConnectionResult.SUCCESS) {
Toast.makeText(getApplicationContext(),
"isGooglePlayServicesAvailable SUCCESS", Toast.LENGTH_LONG)
.show();
} else {
GooglePlayServicesUtil.getErrorDialog(resultCode, this,
RQS_GooglePlayServices);
}
}
@Override
public void onMyLocationChange(Location location) {
latitude = location.getLatitude();
// Getting longitude of the current location
longitude = location.getLongitude();
// Creating a LatLng object for the current location
latLng = new LatLng(latitude, longitude);
// Showing the current location in Google Map
myMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
// Zoom in the Google Map
GPSLocation.setText(latitude + " " + longitude);
myMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
LatLng locLatLng = new LatLng(location.getLatitude(),
location.getLongitude());
double accuracy = location.getAccuracy();
if (myCircle == null) {
CircleOptions circleOptions = new CircleOptions().center(locLatLng)
// set center
.radius(accuracy)
// set radius in meters
.fillColor(Color.RED).strokeColor(Color.BLACK)
.strokeWidth(5);
myCircle = myMap.addCircle(circleOptions);
} else {
myCircle.setCenter(locLatLng);
myCircle.setRadius(accuracy);
}
myMap.animateCamera(CameraUpdateFactory.zoomTo(15));
// myMap.animateCamera(CameraUpdateFactory.newLatLng(locLatLng));
}
@Override
public void onMarkerDrag(Marker arg0) {
// TODO Auto-generated method stub
}
@Override
public void onMarkerDragEnd(Marker arg0) {
// TODO Auto-generated method stub
}
@Override
public void onMarkerDragStart(Marker arg0) {
// TODO Auto-generated method stub
}
@Override
public void onMapLongClick(LatLng point) {
}
@Override
public void onMapClick(LatLng point) {
Clicklatitude = point.latitude;
Clicklongitude = point.longitude;
tvLocInfo.setText(Clicklatitude + " " + Clicklongitude);
if (point != null)
myMap.clear();
myMap.addMarker(new MarkerOptions().position(point).draggable(true));
markerClicked = false;
}
}
我希望得到这样的结果enter link description here