问题描述
只是想知道我是否可以在MAPVIEW中使用标准/默认覆盖/标记?
Just wondering if there is a standard/default overlay/marker that I can use in the MAPVIEW?
我一直在网上搜索,所有教程都讨论了扩展叠加层并将自定义图像放到上面的问题.
I have been searching on the web and all tutorials talk about extending the Overlay and put your custom image on it.
有没有更简单的方法?我只想有一个标记,没什么好想的.
Is there a easier way? I just want to have a marker, nothing fancy.
致谢
詹姆斯
推荐答案
如果您将Eclipse用作IDE,则可以将.png添加到例如/drawable-hdpi,/drawable-ldpi,/drawable -mdpi目录.然后,您可以放置并获取对叠加层的引用列表,如下所示:
If you are using Eclipse as your IDE, you can add a .png, for example, to your /drawable-hdpi, /drawable-ldpi, /drawable-mdpi directories. You can then place and obtain a list of references to your overlays somewhat like this:
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) {
}
}
我从教程中获得了大部分代码,但找不到链接.叠加层非常易于操作.希望这会有所帮助.
I got most of this code from a tutorial I can no longer find the link to. The overlays are pretty simple to manipulate. Hope this helps.
这篇关于Android Google MAPVIEW的默认标记?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!