我正在尝试使用android在谷歌地图上绘制路径我在网上找到了这段代码，但我遇到了一些我无法修复的错误。它为点创建了类，为RoadProvider创建了类，但我对内置类点和他的点感到困惑已创建它。这是错误
Description Resource Path Location Type
mDescription cannot be resolved or is not a field RoadProvider.java /sbn/src/sbn/project/gp line 103 Java Problem
mIconUrl cannot be resolved or is not a field RoadProvider.java /sbn/src/sbn/project/gp line 109 Java Problem
mLatitude cannot be resolved or is not a field RoadProvider.java /sbn/src/sbn/project/gp line 117 Java Problem
mLongitude cannot be resolved or is not a field RoadProvider.java /sbn/src/sbn/project/gp line 118 Java Problem
mName cannot be resolved or is not a field RoadProvider.java /sbn/src/sbn/project/gp line 90 Java Problem
The method addPoint(Point[]) in the type KMLHandler is not applicable for the arguments (Point[]) RoadProvider.java /sbn/src/sbn/project/gp line 68 Java Problem
The method addPoint(Point[]) in the type KMLHandler is not applicable for the arguments (Point[]) RoadProvider.java /sbn/src/sbn/project/gp line 69 Java Problem
安娜这里是代码
package sbn.project.gp;
public class Point {
String mName;
String mDescription;
String mIconUrl;
double mLatitude;
double mLongitude;
}
这是 RoadProvider 类
public class RoadProvider {
public static Road getRoute(InputStream is) {
KMLHandler handler = new KMLHandler();
try {
SAXParser parser = SAXParserFactory.newInstance().newSAXParser();
parser.parse(is, handler);
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return handler.mRoad;
}
public static String getUrl(double fromLat, double fromLon, double toLat,
double toLon) {// connect to map web service
StringBuffer urlString = new StringBuffer();
urlString.append("http://maps.google.com/maps?f=d&hl=en");
urlString.append("&saddr=");// from
urlString.append(Double.toString(fromLat));
urlString.append(",");
urlString.append(Double.toString(fromLon));
urlString.append("&daddr=");// to
urlString.append(Double.toString(toLat));
urlString.append(",");
urlString.append(Double.toString(toLon));
urlString.append("&ie=UTF8&0&om=0&output=kml");
return urlString.toString();
}
}
class KMLHandler extends DefaultHandler {
Road mRoad;
boolean isPlacemark;
boolean isRoute;
boolean isItemIcon;
private Stack mCurrentElement = new Stack();
private String mString;
public KMLHandler() {
mRoad = new Road();
}
public void startElement(String uri, String localName, String name,
Attributes attributes) throws SAXException {
mCurrentElement.push(localName);
if (localName.equalsIgnoreCase("Placemark")) {
isPlacemark = true;
mRoad.mPoints=addPoint(mRoad.mPoints);//there is an error here
mRoad.mPoints = addPoint(mRoad.mPoints);//there is an error here
} else if (localName.equalsIgnoreCase("ItemIcon")) {
if (isPlacemark)
isItemIcon = true;
}
mString = new String();
}
public void characters(char[] ch, int start, int length)
throws SAXException {
String chars = new String(ch, start, length).trim();
mString = mString.concat(chars);
}
public void endElement(String uri, String localName, String name)
throws SAXException {
if (mString.length() > 0) {
if (localName.equalsIgnoreCase("name")) {
if (isPlacemark) {
isRoute = mString.equalsIgnoreCase("Route");
if (!isRoute) {
mRoad.mPoints[mRoad.mPoints.length - 1].mName = mString; //there is an error here
}
} else {
mRoad.mName = mString;
}
} else if (localName.equalsIgnoreCase("color") && !isPlacemark) {
mRoad.mColor = Integer.parseInt(mString, 16);
} else if (localName.equalsIgnoreCase("width") && !isPlacemark) {
mRoad.mWidth = Integer.parseInt(mString);
} else if (localName.equalsIgnoreCase("description")) {
if (isPlacemark) {
String description = cleanup(mString);
if (!isRoute)
mRoad.mPoints[mRoad.mPoints.length - 1].mDescription = description;//there is an error here
else
mRoad.mDescription = description;//there is an error here
}
} else if (localName.equalsIgnoreCase("href")) {
if (isItemIcon) {
mRoad.mPoints[mRoad.mPoints.length - 1].mIconUrl = mString;
}
} else if (localName.equalsIgnoreCase("coordinates")) {
if (isPlacemark) {
if (!isRoute) {
String[] xyParsed = split(mString, ",");
double lon = Double.parseDouble(xyParsed[0]);
double lat = Double.parseDouble(xyParsed[1]);
mRoad.mPoints[mRoad.mPoints.length - 1].mLatitude = lat;
mRoad.mPoints[mRoad.mPoints.length - 1].mLongitude = lon;
} else {
String[] coodrinatesParsed = split(mString, " ");
int lenNew = coodrinatesParsed.length;
int lenOld = mRoad.mRoute.length;
double[][] temp = new double[lenOld + lenNew][2];
for (int i = 0; i < lenOld; i++) {
temp[i] = mRoad.mRoute[i];
}
for (int i = 0; i < lenNew; i++) {
String[] xyParsed = split(coodrinatesParsed[i], ",");
for (int j = 0; j < 2 && j < xyParsed.length; j++)
temp[lenOld + i][j] = Double
.parseDouble(xyParsed[j]);
}
mRoad.mRoute = temp;
}
}
}
}
mCurrentElement.pop();
if (localName.equalsIgnoreCase("Placemark")) {
isPlacemark = false;
if (isRoute)
isRoute = false;
} else if (localName.equalsIgnoreCase("ItemIcon")) {
if (isItemIcon)
isItemIcon = false;
}
return value;
}
public Point[] addPoint(Point[] Points) {
Point[] result = new Point[Points.length + 1];
for (int i = 0; i < Points.length; i++)
{ result[i] = Points[i];}
result[Points.length] = new Point();
return result;
}