如何添加覆盖项目在我的当前位置在这个code [英] how to add overlay item in my current location in this code
本文介绍了如何添加覆盖项目在我的当前位置在这个code的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
下面是我的code！我想在我目前加覆盖项目
位置 ！！但似乎是一个问题，我不能任何人可以检查我有什么
添加到我的code只是把覆盖项目出现在我的当前位置，请检查它。
包tryanabtry.opa;
进口的java.util.List;
进口android.app.PendingIntent;
进口android.content.Context;
进口android.content.res.Resources;
进口android.graphics.Bitmap;
进口android.graphics.BitmapFactory;
进口android.graphics.Canvas;
进口android.graphics.Point;
进口android.graphics.drawable.Drawable;
进口android.location.Location;
进口android.location.LocationListener;
进口android.location.LocationManager;
进口android.os.Bundle;
进口android.os.Handler;
进口android.util.Log;
进口android.widget.TextView;
进口android.widget.Toast;
进口com.google.android.maps.GeoPoint;
进口com.google.android.maps.MapActivity;
进口com.google.android.maps.MapController;
进口com.google.android.maps.MapView;
进口com.google.android.maps.Overlay;
进口com.google.android.maps.OverlayItem;
公共类tryanabtry扩展MapActivity
{
私人MapView类MapView类;
私人MapController MC;
INT错误= 100;
的GeoPoint P，P2，P3，P4，P5，P6，P7，P8，P9，P10，P11，P12，P13;
清单＆LT;＆叠加GT; mapOverlays;
可绘制可绘制，drawable2，drawable3，
drawable4,drawable6,drawable7,drawable8,drawable9,drawable10,drawable11,drawable12,drawable13,drawable5;
HelloItemizedOverlay itemizedOverlay，itemizedOverlay2，
itemizedOverlay3，
itemizedOverlay4,itemizedOverlay5,itemizedOverlay6,itemizedOverlay7,itemizedOverlay8,itemizedOverlay9,itemizedOverlay10,itemizedOverlay11,itemizedOver lay12，itemizedOverlay13;
/ **当第一次创建活动调用。 * /
@覆盖
公共无效的onCreate（捆绑savedInstanceState）
{
尝试{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.main）;
/ *使用的LocationManager类获取GPS位置* /
的LocationManager mlocManager =
（的LocationManager）getSystemService（Context.LOCATION_SERVICE）;
LocationListener的mlocListener =新MyLocationListener（）;
mlocManager.requestLocationUpdates（LocationManager.GPS_PROVIDER，0，
0，mlocListener）;
图形页面=（图形页面）findViewById（R.id.mapView）; mapView.setStreetView（真）;
mapView.setSatellite（真）;
mapView.setBuiltInZoomControls（真）;
MC = mapView.getController（）; mc.setZoom（12）;
addOverLays（）;
}
赶上（例外五）{
Log.d（eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee，e.getMessage（））;
}
} 公共无效addOverLays（）{
的String [] =坐标
{31.216487288475037，29.932637214660645，30.084123015403748，
51.5002，-0.1262，31.337149143218994};
双纬度= 29.98739718380868，LAT2
= 29.98763859272003，lat3 = 29.987574219703674，lat4 = 29.98718498160553;
双对数= 31.442527770886084，LOG2 =
31.44235074520111，log3中= 31.44225418567575，LOG4 = 31.442527770996094;
P =新的GeoPoint（（INT）（LAT * 1E6），（INT）（日志* 1E6））;
P2 =新的GeoPoint（（INT）（LAT2 * 1e6个电子），（INT）（LOG2 * 1e6个电子））;
P3 =新的GeoPoint（（INT）（lat3 * 1e6个电子），（INT）（log3中* 1e6个电子））;
P4 =新的GeoPoint（（INT）（lat4 * 1e6个电子），（INT）（LOG4 * 1e6个电子））; mapOverlays =调用MapView.getOverlays（）;
绘制= this.getResources（）getDrawable（R.drawable.vitblue）。
drawable2 = this.getResources（）getDrawable（R.drawable.ballon）。
drawable3 = this.getResources（）getDrawable（R.drawable.blackaaaaa）。
drawable4 = this.getResources（）getDrawable（R.drawable.vitblue）。
itemizedOverlay =新HelloItemizedOverlay（绘制，这一点）;
itemizedOverlay2 =新HelloItemizedOverlay（drawable2，这一点）;
itemizedOverlay3 =新HelloItemizedOverlay（drawable3，这一点）;
itemizedOverlay4 =新HelloItemizedOverlay（drawable4，这一点）;
OverlayItem overlayitem =新OverlayItem（对，开罗，over1）;
OverlayItem over2 =新OverlayItem（P2，乌尔姆，over2）;
OverlayItem over3 =新OverlayItem（P3，offff，over3）;
OverlayItem over4 =新OverlayItem（P4，offff，over4）;
itemizedOverlay.addOverlay（overlayitem）;
mapOverlays.add（itemizedOverlay）;
itemizedOverlay2.addOverlay（over2）;
mapOverlays.add（itemizedOverlay2）;
itemizedOverlay3.addOverlay（over3）;
mapOverlays.add（itemizedOverlay3）;
itemizedOverlay4.addOverlay（over4）;
mapOverlays.add（itemizedOverlay4）;
mc.setZoom（17）;
} 公共类MyLocationListener实现LocationListener的
{
@覆盖
公共无效onLocationChanged（位置LOC）
{
的GeoPoint点=新的GeoPoint（（INT）（loc.getLatitude（）*
1E6）
（中间体）（loc.getLongitude（）* 1E6））;
///////////////////////////////////我的新的编辑\\\\\\\\\\\\\\\\\\\\\\\\ \\
mapOverlays =调用MapView.getOverlays（）;
drawable11 = this.getResources（）getDrawable（R.drawable.vitblue）。
itemizedOverlay11 =新HelloItemizedOverlay（drawable11，这一点）;
OverlayItem over11 =新OverlayItem（点，offff，over5）;
itemizedOverlay11.addOverlay（over11）;
mapOverlays.add（itemizedOverlay11）;
////////////////////////////////////////////////// ///////////////////// /////////构造HelloItemizedOverlay（可绘制，tryanabtry.MyLocationListener）是未定义//////错误
字符串文本=我目前的位置是：+
Latitud =+ loc.getLatitude（）+
Longitud =+ loc.getLongitude（）;
Toast.makeText（getApplicationContext（），
文本，
Toast.LENGTH_SHORT）.show（）;
mc.animateTo（点）;
} 私人资源getResources（）{
// TODO自动生成方法存根
返回null;
} 私人无效DoubletoString（双纬）{
// TODO自动生成方法存根
} 公共无效onProviderDisabled（字符串提供商）
{
Toast.makeText（getApplicationContext（），
全球定位系统已禁用，
Toast.LENGTH_SHORT）.show（）;
} 公共无效onProviderEnabled（字符串提供商）
{
Toast.makeText（getApplicationContext（），
GPS功能
Toast.LENGTH_SHORT）.show（）;
} 公共无效onStatusChanged（字符串提供商，INT的地位，捆绑
演员）
{
} 保护布尔isRouteDisplayed（）{
返回false;
}
} / *类MyLocationListener结束* / @覆盖
保护布尔isRouteDisplayed（）{
// TODO自动生成方法存根
返回false;
}
}
/ * UseGps活动结束* /
我HelloOverlay班组长
包tryanabtry.opa;
进口的java.util.ArrayList;
进口tryanabtry.opa.tryanabtry.MyLocationListener;
进口android.app.AlertDialog;
进口android.app.AlertDialog.Builder;
进口android.content.res.Resources;
进口android.graphics.Bitmap;
进口android.graphics.BitmapFactory;
进口android.graphics.Canvas;
进口android.graphics.Color;
进口android.graphics.Paint;
进口android.graphics.Path;
进口android.graphics.Point;
进口android.graphics.drawable.Drawable;
进口android.util.Log;
进口com.google.android.maps.GeoPoint;
进口com.google.android.maps.ItemizedOverlay;
进口com.google.android.maps.MapView;
进口com.google.android.maps.Overlay;
进口com.google.android.maps.OverlayItem;
进口com.google.android.maps.Projection;
公共类HelloItemizedOverlay扩展ItemizedOverlay＆LT; OverlayItem＆GT;
{
私人的ArrayList＆LT; OverlayItem＆GT; mOverlays =新
ArrayList的＆LT; OverlayItem＆GT;（）;
tryanabtry M =新tryanabtry（）;
公共HelloItemizedOverlay（可绘制defaultMarker，tryanabtry N）{
超（boundCenterBottom（defaultMarker））;
M = N;
}
@覆盖
保护OverlayItem createItem中（int i）以{
返回mOverlays.get（ⅰ）;
}
@覆盖
公众诠释大小（）{
返回mOverlays.size（）;
}
公共无效addOverlay（OverlayItem叠加）{
mOverlays.add（覆盖）;
填充（）;
}
// //////////
公共无效画（android.graphics.Canvas帆布，MapView类MapView类，
布尔影子）{
类MapOverlay扩展覆盖{
私人的GeoPoint pointToDraw;
公共无效setPointToDraw（GeoPoint的点）{
pointToDraw =点;
}
公众的GeoPoint getPointToDraw（）{
返回pointToDraw;
}
@覆盖
公共布尔平局（帆布帆布，MapView类MapView类，布尔阴影，
时长）{
super.draw（画布，MapView类，阴影）;
//转换点像素
点screenPts =新点（）;
。MapView.getProjection（）在toPixels（pointToDraw，screenPts）;
//添加标记
BMP位图= BitmapFactory.de codeResource（getResources（）
R.drawable.ballon）;
canvas.drawBitmap（BMP，screenPts.x，screenPts.y - 24，空）
返回true;
}
私人资源getResources（）{
// TODO自动生成方法存根
返回null;
}
}
GeoPoint的P =新的GeoPoint（（INT）（29.987574219703674 * 1E6）
（中间体）（31.44225418567575 * 1E6））;
GeoPoint的P2 =新的GeoPoint（（INT）（29.98763859272003 * 1E6）
（中间体）（31.44235074520111 * 1E6））;
GeoPoint的P3 =新的GeoPoint（（INT）（29.98718498160553 * 1E6）
（中间体）（31.442527770996094 * 1E6））;
P4的GeoPoint =新的GeoPoint（（INT）（29.98739718380868 * 1E6）
（中间体）（31.442527770886084 * 1E6））;
//假设你现在已经赋值给这两个GeoPoints。
投影投影= MapView.getProjection（）在;
点起点= projection.toPixels（P，NULL）;
点startingPoint1 = projection.toPixels（P，NULL）;
点startingPoint2 = projection.toPixels（P2，NULL）;
点endingPoint = projection.toPixels（P2，NULL）;
点endingPoint1 = projection.toPixels（P3，NULL）;
点endingPoint2 = projection.toPixels（P4，NULL）;
//创建包含两个点之间的线的路径。
路径path =新路径（）;
path.moveTo（startingPoint.x，startingPoint.y）;
path.lineTo（endingPoint.x，endingPoint.y）;
路径PATH1 =新路径（）;
path1.moveTo（startingPoint1.x，startingPoint1.y）;
path1.lineTo（endingPoint1.x，endingPoint1.y）;
路径PATH2 =新路径（）;
path2.moveTo（startingPoint2.x，startingPoint2.y）;
path2.lineTo（endingPoint2.x，endingPoint2.y）; 涂料粉刷=新的油漆（）;
paint.setStyle（Paint.Style.STROKE）;
paint.setColor（Color.RED）;
涂料paint1 =新的油漆（）;
paint1.setStyle（Paint.Style.STROKE）;
paint1.setColor（Color.GREEN）;
涂料paint2 =新的油漆（）;
paint2.setStyle（Paint.Style.STROKE）;
paint2.setColor（Color.YELLOW）;
//绘制的路径！
super.draw（画布，MapView类，阴影）;
//埃尔超德3shnnn到ADDD koloooo覆盖W¯¯路径
canvas.drawPath（路径，油漆）;
canvas.drawPath（PATH1，paint1）;
canvas.drawPath（PATH2，paint2）;
}
@覆盖
公共布尔中的onTap（int i）以{
尝试{
字符串s = mOverlays.get（0）.getSnippet（）;
串[]的相关信息= s.split（，）;
建设者建设者=新AlertDialog.Builder（米）;
builder.setTitle（关于信息：+的相关信息[0]）;
builder.setIcon（m.getResources（）。getDrawable（
m.getResources（）。则getIdentifier（mOverlays.get（0）.getTitle（），
可拉伸，net.learn2develop.GoogleMaps）））;
builder.setMessage（年龄：+的相关信息[1] +\\ njob：+的相关信息[2]
+\\ ninstitute：+的相关信息[3]）;
builder.setPositiveButton（OK，NULL）;
builder.show（）;
}
赶上（例外五）{
Log.d（3'lt，lihh雅WDI3，E）;
}
返回true;
}
解决方案
我迟到了，但原因你得到的错误：
构造HelloItemizedOverlay（可绘制，tryanabtry.MyLocationListener）未定义
是因为你使用
的这种调用HelloItemizedOverlay的构造函数时。在此背景下，这个指的实例MyLocationListener其中code是内，而不是一个实例之类的tryanabtry。替换此行：
itemizedOverlay11 =新HelloItemizedOverlay（drawable11，这一点）;本：
itemizedOverlay11 =新HelloItemizedOverlay（drawable11，tryanabtry.this）;另外请注意，按照约定的Java类应该以大写字母开头这样
Tryanabtry而不是tryanabtry。Here is my code !! i want to add overlay item in my current location !! but seems a problem i cant can any one check what i have to add to my code to just put overlay item appear in my current location Please Check it up .
package tryanabtry.opa; import java.util.List; import android.app.PendingIntent; import android.content.Context; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Point; import android.graphics.drawable.Drawable; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Bundle; import android.os.Handler; import android.util.Log; import android.widget.TextView; import android.widget.Toast; import com.google.android.maps.GeoPoint; import com.google.android.maps.MapActivity; import com.google.android.maps.MapController; import com.google.android.maps.MapView; import com.google.android.maps.Overlay; import com.google.android.maps.OverlayItem; public class tryanabtry extends MapActivity { private MapView mapView; private MapController mc; int error=100; GeoPoint p, p2, p3, p4,p5,p6,p7,p8,p9,p10,p11,p12,p13; List<Overlay> mapOverlays; Drawable drawable, drawable2 , drawable3, drawable4,drawable6,drawable7,drawable8,drawable9,drawable10,drawable11,drawable12,drawable13,drawable5; HelloItemizedOverlay itemizedOverlay, itemizedOverlay2 , itemizedOverlay3, itemizedOverlay4,itemizedOverlay5,itemizedOverlay6,itemizedOverlay7,itemizedOverlay8,itemizedOverlay9,itemizedOverlay10,itemizedOverlay11,itemizedOver lay12,itemizedOverlay13; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { try{ super.onCreate(savedInstanceState); setContentView(R.layout.main); /* Use the LocationManager class to obtain GPS locations */ LocationManager mlocManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE); LocationListener mlocListener = new MyLocationListener(); mlocManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 0, 0, mlocListener); mapView = (MapView) findViewById(R.id.mapView); mapView.setStreetView(true); mapView.setSatellite(true); mapView.setBuiltInZoomControls(true); mc = mapView.getController(); mc.setZoom(12); addOverLays(); } catch(Exception e){ Log.d("eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",e.getMessage()); } } public void addOverLays(){ String [] coordinates = {"31.216487288475037","29.932637214660645" ,"30.084123015403748", "51.5002" , "-0.1262","31.337149143218994"}; double lat = 29.98739718380868,lat2 =29.98763859272003,lat3=29.987574219703674,lat4=29.98718498160553; double log = 31.442527770886084, log2 = 31.44235074520111,log3=31.44225418567575,log4=31.442527770996094; p = new GeoPoint((int) (lat * 1E6), (int) (log * 1E6)); p2 = new GeoPoint( (int) (lat2 * 1e6), (int) (log2 * 1e6)); p3=new GeoPoint( (int) (lat3 * 1e6), (int) (log3 * 1e6)); p4=new GeoPoint( (int) (lat4 * 1e6), (int) (log4 * 1e6)); mapOverlays = mapView.getOverlays(); drawable = this.getResources().getDrawable(R.drawable.vitblue); drawable2 = this.getResources().getDrawable(R.drawable.ballon); drawable3 = this.getResources().getDrawable(R.drawable.blackaaaaa); drawable4 = this.getResources().getDrawable(R.drawable.vitblue); itemizedOverlay = new HelloItemizedOverlay(drawable,this); itemizedOverlay2 = new HelloItemizedOverlay(drawable2,this); itemizedOverlay3 = new HelloItemizedOverlay(drawable3,this); itemizedOverlay4 = new HelloItemizedOverlay(drawable4,this); OverlayItem overlayitem = new OverlayItem(p, "Cairo", " over1"); OverlayItem over2 = new OverlayItem(p2, "ulm", "over2"); OverlayItem over3 = new OverlayItem(p3, "offff", "over3"); OverlayItem over4 = new OverlayItem(p4, "offff", "over4"); itemizedOverlay.addOverlay(overlayitem); mapOverlays.add(itemizedOverlay); itemizedOverlay2.addOverlay(over2); mapOverlays.add(itemizedOverlay2); itemizedOverlay3.addOverlay(over3); mapOverlays.add(itemizedOverlay3); itemizedOverlay4.addOverlay(over4); mapOverlays.add(itemizedOverlay4); mc.setZoom(17); } public class MyLocationListener implements LocationListener { @Override public void onLocationChanged(Location loc) { GeoPoint point = new GeoPoint( (int) (loc.getLatitude() * 1E6), (int) (loc.getLongitude() * 1E6)); ///////////////////////////////////MY NEW EDIT \\\\\\\\\\\\\ mapOverlays = mapView.getOverlays(); drawable11 = this.getResources().getDrawable(R.drawable.vitblue); itemizedOverlay11= new HelloItemizedOverlay(drawable11,this); OverlayItem over11 = new OverlayItem(point, "offff", "over5"); itemizedOverlay11.addOverlay(over11); mapOverlays.add(itemizedOverlay11); /////////////////////////////////////////////////////////////////////// /////////The constructor HelloItemizedOverlay(Drawable, tryanabtry.MyLocationListener) is undefined ////// error String Text = "My current location is: " + "Latitud ="+ loc.getLatitude() + "Longitud =" + loc.getLongitude(); Toast.makeText( getApplicationContext(), Text, Toast.LENGTH_SHORT).show(); mc.animateTo(point); } private Resources getResources() { // TODO Auto-generated method stub return null; } private void DoubletoString(double latitude) { // TODO Auto-generated method stub } public void onProviderDisabled(String provider) { Toast.makeText( getApplicationContext(), "Gps Disabled", Toast.LENGTH_SHORT ).show(); } public void onProviderEnabled(String provider) { Toast.makeText( getApplicationContext(), "Gps Enabled", Toast.LENGTH_SHORT).show(); } public void onStatusChanged(String provider, int status, Bundle extras) { } protected boolean isRouteDisplayed() { return false; } }/* End of Class MyLocationListener */ @Override protected boolean isRouteDisplayed() { // TODO Auto-generated method stub return false; } } /* End of UseGps Activity*/My HelloOverlay classs
package tryanabtry.opa; import java.util.ArrayList; import tryanabtry.opa.tryanabtry.MyLocationListener; import android.app.AlertDialog; import android.app.AlertDialog.Builder; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Path; import android.graphics.Point; import android.graphics.drawable.Drawable; import android.util.Log; import com.google.android.maps.GeoPoint; import com.google.android.maps.ItemizedOverlay; import com.google.android.maps.MapView; import com.google.android.maps.Overlay; import com.google.android.maps.OverlayItem; import com.google.android.maps.Projection; public class HelloItemizedOverlay extends ItemizedOverlay<OverlayItem> { private ArrayList<OverlayItem> mOverlays = new ArrayList<OverlayItem>(); tryanabtry m = new tryanabtry(); public HelloItemizedOverlay(Drawable defaultMarker, tryanabtry n) { super(boundCenterBottom(defaultMarker)); m = n; } @Override protected OverlayItem createItem(int i) { return mOverlays.get(i); } @Override public int size() { return mOverlays.size(); } public void addOverlay(OverlayItem overlay) { mOverlays.add(overlay); populate(); } // ////////// public void draw(android.graphics.Canvas canvas, MapView mapView, boolean shadow) { class MapOverlay extends Overlay { private GeoPoint pointToDraw; public void setPointToDraw(GeoPoint point) { pointToDraw = point; } public GeoPoint getPointToDraw() { return pointToDraw; } @Override public boolean draw(Canvas canvas, MapView mapView, boolean shadow, long when) { super.draw(canvas, mapView, shadow); // convert point to pixels Point screenPts = new Point(); mapView.getProjection().toPixels(pointToDraw, screenPts); // add marker Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.ballon); canvas.drawBitmap(bmp, screenPts.x, screenPts.y - 24, null) return true; } private Resources getResources() { // TODO Auto-generated method stub return null; } } GeoPoint p = new GeoPoint((int) (29.987574219703674 * 1E6), (int) (31.44225418567575 * 1E6)); GeoPoint p2 = new GeoPoint((int) ( 29.98763859272003 * 1E6), (int) (31.44235074520111 * 1E6)); GeoPoint p3 = new GeoPoint((int) (29.98718498160553* 1E6), (int) (31.442527770996094 * 1E6)); GeoPoint p4= new GeoPoint((int) (29.98739718380868 * 1E6), (int) (31.442527770886084 * 1E6)); // Let's assume you've assigned values to these two GeoPoints now. Projection projection = mapView.getProjection(); Point startingPoint = projection.toPixels(p, null); Point startingPoint1 = projection.toPixels(p, null); Point startingPoint2= projection.toPixels(p2, null); Point endingPoint = projection.toPixels(p2, null); Point endingPoint1 = projection.toPixels(p3, null); Point endingPoint2= projection.toPixels(p4, null); // Create the path containing the line between the two points. Path path = new Path(); path.moveTo(startingPoint.x, startingPoint.y); path.lineTo(endingPoint.x, endingPoint.y); Path path1 = new Path(); path1.moveTo(startingPoint1.x, startingPoint1.y); path1.lineTo(endingPoint1.x, endingPoint1.y); Path path2 = new Path(); path2.moveTo(startingPoint2.x, startingPoint2.y); path2.lineTo(endingPoint2.x, endingPoint2.y); Paint paint = new Paint(); paint.setStyle(Paint.Style.STROKE); paint.setColor(Color.RED); Paint paint1 = new Paint(); paint1.setStyle(Paint.Style.STROKE); paint1.setColor(Color.GREEN); Paint paint2 = new Paint(); paint2.setStyle(Paint.Style.STROKE); paint2.setColor(Color.YELLOW); // Draw the path! super.draw(canvas, mapView, shadow); // el super de 3shnnn to addd koloooo overlay w path canvas.drawPath(path, paint); canvas.drawPath(path1, paint1); canvas.drawPath(path2, paint2); } @Override public boolean onTap(int i) { try { String s = mOverlays.get(0).getSnippet(); String[] infos = s.split(","); Builder builder = new AlertDialog.Builder(m); builder.setTitle("Information about: " + infos[0]); builder.setIcon(m.getResources().getDrawable( m.getResources().getIdentifier(mOverlays.get(0).getTitle(), "drawable", "net.learn2develop.GoogleMaps"))); builder.setMessage("age: " + infos[1] + "\njob: " + infos[2] + "\ninstitute: " + infos[3]); builder.setPositiveButton("ok", null); builder.show(); } catch (Exception e) { Log.d("3'lt", "lihh ya wdi3", e); } return true; }
解决方案I'm late to the party, but the reason you are getting the error:
The constructor HelloItemizedOverlay(Drawable, tryanabtry.MyLocationListener) is undefined
is because of your use of
thiswhen calling the constructor ofHelloItemizedOverlay. In this context,thisrefers to the instance ofMyLocationListenerwhich the code is within, and not an instance of the classtryanabtry.Replace this line:
itemizedOverlay11= new HelloItemizedOverlay(drawable11,this);with this:
itemizedOverlay11= new HelloItemizedOverlay(drawable11,tryanabtry.this);Please also note that by convention Java classes should start with a capital letter, so
Tryanabtryinstead oftryanabtry.这篇关于如何添加覆盖项目在我的当前位置在这个code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IT屋！
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