请问在MAPVIEW中是否有标准/默认的叠加层/标记可以使用?
我已经在网上搜索了很久,所有的教程都是讲解如何扩展Overlay并将自定义图像放置在其中。
是否有更简单的方法?我只想要一个标记,没有什么花哨的东西。
谢谢
詹姆斯
请问在MAPVIEW中是否有标准/默认的叠加层/标记可以使用?
我已经在网上搜索了很久,所有的教程都是讲解如何扩展Overlay并将自定义图像放置在其中。
是否有更简单的方法?我只想要一个标记,没有什么花哨的东西。
谢谢
詹姆斯
package com.practice.mapper;
import java.util.ArrayList;
import android.graphics.drawable.Drawable;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.OverlayItem;
public class Itemization extends ItemizedOverlay<OverlayItem> {
private ArrayList<OverlayItem> mOverlays = new ArrayList<OverlayItem>();
public Itemization(Drawable defaultMarker) {
super(boundCenterBottom(defaultMarker));
// super(defaultMarker);
}
@Override
protected OverlayItem createItem(int i) {
return mOverlays.get(i);
}
public void addOverlay(OverlayItem overlay) {
mOverlays.add(overlay);
populate();
}
@Override
public int size() {
return mOverlays.size();
}
}
package com.practice.mapper;
import java.util.List;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;
import com.google.android.maps.OverlayItem;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.location.LocationProvider;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ZoomControls;
public class Mapper extends MapActivity implements LocationListener {
Location presentLocation;
ZoomControls z;
LinearLayout linearLayout;
MapView mapView;
List<Overlay> mapOverlays;
Drawable drawable;
Itemization itemizedOverlay;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
mapOverlays = mapView.getOverlays();
drawable = this.getResources().getDrawable(R.drawable.androidmarker);
itemizedOverlay = new Itemization(drawable);
GeoPoint point = new GeoPoint(19240000, -99120000);
OverlayItem overlayitem = new OverlayItem(point, "", "");
itemizedOverlay.addOverlay(overlayitem);
GeoPoint point2 = new GeoPoint(35410000, 139460000);
OverlayItem overlayitem2 = new OverlayItem(point2, "", "");
itemizedOverlay.addOverlay(overlayitem2);
mapOverlays.add(itemizedOverlay);
}
public void btnUpdateClicked(View v) {
LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
LocationProvider p = lm.getProvider(LocationManager.GPS_PROVIDER);
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 20000, 1, this);
List<String> enabledProv = lm.getProviders(true);
Location l1 = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
Location l2 = lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
Location l3 = lm.getLastKnownLocation(LocationManager.PASSIVE_PROVIDER);
Button b = new Button(this.getApplicationContext());
b.setOnClickListener(new OnClickListener(){
public void onClick(View v) {
}});
lm.toString();
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
public void onLocationChanged(Location location) {
presentLocation = location;
Log.d("TEST", "New location received");
}
public void onProviderDisabled(String provider) {
}
public void onProviderEnabled(String provider) {
}
public void onStatusChanged(String provider, int status, Bundle extras) {
}
}
我从一个教程中获取了大部分的代码,但现在无法找到链接。这些覆盖层相当容易操作。希望这可以帮助到您。
mapView.getMap().addMarker(new MarkerOptions()
.position(new LatLng(10, 10))
.title("Hello world"));