android中的路径跟踪程序
我想要android中路径跟踪程序的源代码。 我看到了代码 公共void绘图路径（NavigationDataSet导航集，int-color，MapView mMapView01）{android中的路径跟踪程序,android,android-intent,android-emulator,android-ndk,Android,Android Intent,Android Emulator,Android Ndk,我想要android中路径跟踪程序的源代码。 我看到了代码 公共void绘图路径（NavigationDataSet导航集，int-color，MapView mMapView01）{ Log.d（myapp.APP，“映射颜色前：”+color）； //用餐时进行颜色校正，使其颜色更暗 如果（color==color.parseColor（#add331”））color=color.parseColor（#6C8715”）； Log.d（myapp.APP，“地图颜色在“+颜色”之后）； Co
Log.d（myapp.APP，“映射颜色前：”+color）；
//用餐时进行颜色校正，使其颜色更暗
如果（color==color.parseColor（#add331”））color=color.parseColor（#6C8715”）；
Log.d（myapp.APP，“地图颜色在“+颜色”之后）；
Collection OverlyLoadDagain=new ArrayList（）；
for（迭代器iter=mMapView01.getOverlays（）.Iterator（）；iter.hasNext（）；）{
对象o=iter.next（）；
Log.d（myapp.APP，“覆盖类型：+o.getClass（）.getName（））；
如果（！RouteOverlay.class.getName（）.equals（o.getClass（）.getName（）））{
//mMapView01.getOverlays（）.remove（o）；
加上（o）；
}
}
mMapView01.getOverlays（）.clear（）；
mMapView01.getOverlays（）.addAll（overlaysToAddAgain）；
字符串路径=navSet.getRoutePlacemark（）.getCoordinates（）；
Log.d（myapp.APP，“path=“+path”）；
if（path！=null&&path.trim（）.length（）>0）{
String[]pairs=path.trim（）.split（“”）；
Log.d（myapp.APP，“pairs.length=“+pairs.length”）；
字符串[]lngLat=pairs[0]。拆分（“，”；//lngLat[0]=经度lngLat[1]=纬度lngLat[2]=高度
Log.d（myapp.APP，“lnglat=“+lnglat+”，长度：“+lnglat.length”）；
如果（lngLat.length=2&&gp1.getLatitudeE6（）>0&&gp1.getLongtudee6（）>0
&&gp2.getLatitudeE6（）>0&&gp2.getLongitudeE6（）>0）{
//对于地质点，第一个：纬度，第二个：经度
gp2=新的地质点（（int）（Double.parseDouble（lngLat[1]）*1E6），（int）（Double.parseDouble（lngLat[0]）*1E6））；
如果（gp2.getLatitudeE6（）！=22200000）{
mMapView01.getOverlays（）.add（新路由覆盖（gp1、gp2、2、颜色））；
Log.d（myapp.APP，“绘图：”+gp1.getLatitudeE6（）+“/”+gp1.getLongitudeE6（）+”到“+gp2.getLatitudeE6（）+”/”+gp2.getLongitudeE6（）”）；
}
}
//Log.d（myapp.APP，“pair:+pairs[i]）；
}
//添加（新的RouteOverlay（gp2，gp2，3））；
mMapView01.getOverlays（）.add（新路由覆盖（gp2，gp2，3））；
}捕获（数字格式）{
Log.e（myapp.APP，“无法绘制路线”，e）；
}
}
//mMapView01.getOverlays（）.addAll（routeOverlays）；//使用默认颜色
mMapView01.setEnabled（true）；
谢谢。我有两门课HomeActivity和MyOverlay在谷歌地图上绘制路径 以下是家庭活动：
MapView mapView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Log.e("Home", " activity created");
mapView = (MapView) findViewById(R.id.mapview);
double src_lat = 28.011022; // the testing source 28.011022,73.323802
double src_long = 73.323802;
double dest_lat = 28.008389; // the testing destination 28.008389,73.33599
double dest_long = 73.33599;
Log.e("Home ", " Strting drawing path");
GeoPoint srcGeoPoint = new GeoPoint((int) (src_lat * 1E6),
(int) (src_long * 1E6));
GeoPoint destGeoPoint = new GeoPoint((int) (dest_lat * 1E6),
(int) (dest_long * 1E6));
Log.e("Home ", " Strting drawing path");
List<Overlay> mapOverlays = mapView.getOverlays();
Drawable drawable = this.getResources().getDrawable(R.drawable.darkgreen_marker);
mapView.getOverlays();
OverlayItem overlayitem = new OverlayItem(srcGeoPoint, "Hello!", "This is your position");
overLay marker_overlay=new overLay(drawable);
marker_overlay.addOverlay(overlayitem);
mapOverlays.add(marker_overlay);
overlayitem = new OverlayItem(destGeoPoint, "Theater Big ", "Go to this ");
marker_overlay.addOverlay(overlayitem);
mapOverlays.add(marker_overlay);
//mapView.getOverlays().add(new overLay(null, destGeoPoint));
DrawPath(srcGeoPoint, destGeoPoint, Color.GREEN, mapView);
mapView.getController().animateTo(srcGeoPoint);
mapView.getController().setZoom(15);
mapView.setBuiltInZoomControls(true);
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
private void DrawPath(GeoPoint src,GeoPoint dest, int color, MapView mMapView01)
{
// connect to map web service
StringBuilder urlString = new StringBuilder();
urlString.append("http://maps.google.com/maps?f=d&hl=en");
urlString.append("&saddr=");//from
urlString.append( Double.toString((double)src.getLatitudeE6()/1.0E6 ));
urlString.append(",");
urlString.append( Double.toString((double)src.getLongitudeE6()/1.0E6 ));
urlString.append("&daddr=");//to
urlString.append( Double.toString((double)dest.getLatitudeE6()/1.0E6 ));
urlString.append(",");
urlString.append( Double.toString((double)dest.getLongitudeE6()/1.0E6 ));
urlString.append("&ie=UTF8&0&om=0&output=kml");
Log.e("Draw path ","URL="+urlString.toString());
// get the kml (XML) doc. And parse it to get the coordinates(direction route).
Document doc = null;
HttpURLConnection urlConnection= null;
URL url = null;
try
{
url = new URL(urlString.toString());
urlConnection=(HttpURLConnection)url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
urlConnection.setDoInput(true);
urlConnection.connect();
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
doc = db.parse(urlConnection.getInputStream());
Log.e(" Home ", " response"+doc.toString());
if(doc.getElementsByTagName("GeometryCollection").getLength()>0)
{
//String path = doc.getElementsByTagName("GeometryCollection").item(0).getFirstChild().getFirstChild().getNodeName();
String path = doc.getElementsByTagName("GeometryCollection").item(0).getFirstChild().getFirstChild().getFirstChild().getNodeValue() ;
Log.d("draw path ","path="+ path);
String [] pairs = path.split(" ");
String[] lngLat = pairs[0].split(","); // lngLat[0]=longitude lngLat[1]=latitude lngLat[2]=height
// src
GeoPoint startGP = new GeoPoint((int)(Double.parseDouble(lngLat[1])*1E6),(int)(Double.parseDouble(lngLat[0])*1E6));
mMapView01.getOverlays().add(new MyOverLay(startGP,startGP,1));
GeoPoint gp1;
GeoPoint gp2 = startGP;
for(int i=1;i<pairs.length;i++) // the last one would be crash
{
lngLat = pairs[i].split(",");
gp1 = gp2;
// watch out! For GeoPoint, first:latitude, second:longitude
gp2 = new GeoPoint((int)(Double.parseDouble(lngLat[1])*1E6),(int)(Double.parseDouble(lngLat[0])*1E6));
mMapView01.getOverlays().add(new MyOverLay(gp1,gp2,2,color));
Log.d("Draw path","pair:" + pairs[i]);
}
mMapView01.getOverlays().add(new MyOverLay(dest,dest, 3)); // use the default color
}
}catch (MalformedURLException e){
e.printStackTrace();
}
catch (IOException e){
e.printStackTrace();
}
catch (ParserConfigurationException e){
e.printStackTrace();
}
catch (SAXException e){
e.printStackTrace();
}
}
public class overLay extends ItemizedOverlay<OverlayItem>{
private List<OverlayItem> mOverlays = new ArrayList<OverlayItem>();
GeoPoint gp1;
Drawable marker;
public overLay(Drawable marker) {
super(marker);
this.marker=marker;
}
public void addOverlay(OverlayItem overlay){
mOverlays.add(overlay);
Log.e(" Map Overlay __", " adding new item "+overlay);
populate();
}
@Override
public boolean draw(Canvas canvas, MapView mapView, boolean shadow, long when){
Projection projection = mapView.getProjection();
Point point = new Point();
for(int i=0;i<mOverlays.size();i++){
OverlayItem g = getItem(i);
gp1=g.getPoint();
projection.toPixels(gp1, point);
Bitmap bmp = BitmapFactory.decodeResource(
getResources(), R.drawable.marker_red);
canvas.drawBitmap(bmp, point.x-10, point.y-35, null);
}
return super.draw(canvas, mapView, shadow, when);
}
@Override
public boolean onTap(int index){
/* GeoPonit p MapView mapView*/
OverlayItem item = getItem(index);
GeoPoint gp=item.getPoint();
String msg=item.getSnippet();
mapView.getController().animateTo(gp);
Log.e("-- map view --", " marker clicked "+gp);
LayoutInflater infalter=getLayoutInflater();
final LinearLayout table = (LinearLayout)infalter.inflate(R.layout.popup_baloon_layout, null);
table.setWillNotDraw(false);
final MapView.LayoutParams lp2 = new MapView.LayoutParams(
150,100,gp,-15,-10,MapView.LayoutParams.BOTTOM_CENTER);
TextView addrs=(TextView)table.findViewById(R.id.address);
addrs.setText(msg);
ImageView call_img=(ImageView)table.findViewById(R.id.imageView1);
call_img.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.e("__ Home __", " making call to 12345");
Bundle bundle=new Bundle();
mapView.removeView(table);
Intent intent = new Intent(Intent.ACTION_CALL);
intent.setData(Uri.parse("tel:" + bundle.getString("12345")));
HomeActivity.this.startActivity(intent);
}
});
table.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mapView.removeView(table);
//table=null;
}
});
mapView.addView(table,lp2);
return true;
}
@Override
protected OverlayItem createItem(int i) {
Log.e("Map Overlay __", " creating overlay item "+i);
return mOverlays.get(i);
}
@Override
public int size() {
Log.e("Map Overlay __", " getting overlay size ");
return mOverlays.size();
}
}
这些类使用kml在两个位置之间绘制路径。android.app.ActionBar未解析。ListenusingSecureRfcommWithServiceRecord（NAME\u Unsecure，MY\u UUID\u Unsecure）此方法未定义。我的要求是，当用户启动应用程序时，它每5秒保存一次经度和纬度。到达目的地后，应用程序使用保存的经度和纬度绘制地图。可能吗？谢谢advanced@venkat然后您只需修改HomeActivity类中的DrawPath（）函数，只需使用
mMapView01.getOverlays（）.add（new MyOverLay（dest，dest，3））MapView mapView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Log.e("Home", " activity created");
mapView = (MapView) findViewById(R.id.mapview);
double src_lat = 28.011022; // the testing source 28.011022,73.323802
double src_long = 73.323802;
double dest_lat = 28.008389; // the testing destination 28.008389,73.33599
double dest_long = 73.33599;
Log.e("Home ", " Strting drawing path");
GeoPoint srcGeoPoint = new GeoPoint((int) (src_lat * 1E6),
(int) (src_long * 1E6));
GeoPoint destGeoPoint = new GeoPoint((int) (dest_lat * 1E6),
(int) (dest_long * 1E6));
Log.e("Home ", " Strting drawing path");
List<Overlay> mapOverlays = mapView.getOverlays();
Drawable drawable = this.getResources().getDrawable(R.drawable.darkgreen_marker);
mapView.getOverlays();
OverlayItem overlayitem = new OverlayItem(srcGeoPoint, "Hello!", "This is your position");
overLay marker_overlay=new overLay(drawable);
marker_overlay.addOverlay(overlayitem);
mapOverlays.add(marker_overlay);
overlayitem = new OverlayItem(destGeoPoint, "Theater Big ", "Go to this ");
marker_overlay.addOverlay(overlayitem);
mapOverlays.add(marker_overlay);
//mapView.getOverlays().add(new overLay(null, destGeoPoint));
DrawPath(srcGeoPoint, destGeoPoint, Color.GREEN, mapView);
mapView.getController().animateTo(srcGeoPoint);
mapView.getController().setZoom(15);
mapView.setBuiltInZoomControls(true);
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
private void DrawPath(GeoPoint src,GeoPoint dest, int color, MapView mMapView01)
{
// connect to map web service
StringBuilder urlString = new StringBuilder();
urlString.append("http://maps.google.com/maps?f=d&hl=en");
urlString.append("&saddr=");//from
urlString.append( Double.toString((double)src.getLatitudeE6()/1.0E6 ));
urlString.append(",");
urlString.append( Double.toString((double)src.getLongitudeE6()/1.0E6 ));
urlString.append("&daddr=");//to
urlString.append( Double.toString((double)dest.getLatitudeE6()/1.0E6 ));
urlString.append(",");
urlString.append( Double.toString((double)dest.getLongitudeE6()/1.0E6 ));
urlString.append("&ie=UTF8&0&om=0&output=kml");
Log.e("Draw path ","URL="+urlString.toString());
// get the kml (XML) doc. And parse it to get the coordinates(direction route).
Document doc = null;
HttpURLConnection urlConnection= null;
URL url = null;
try
{
url = new URL(urlString.toString());
urlConnection=(HttpURLConnection)url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
urlConnection.setDoInput(true);
urlConnection.connect();
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
doc = db.parse(urlConnection.getInputStream());
Log.e(" Home ", " response"+doc.toString());
if(doc.getElementsByTagName("GeometryCollection").getLength()>0)
{
//String path = doc.getElementsByTagName("GeometryCollection").item(0).getFirstChild().getFirstChild().getNodeName();
String path = doc.getElementsByTagName("GeometryCollection").item(0).getFirstChild().getFirstChild().getFirstChild().getNodeValue() ;
Log.d("draw path ","path="+ path);
String [] pairs = path.split(" ");
String[] lngLat = pairs[0].split(","); // lngLat[0]=longitude lngLat[1]=latitude lngLat[2]=height
// src
GeoPoint startGP = new GeoPoint((int)(Double.parseDouble(lngLat[1])*1E6),(int)(Double.parseDouble(lngLat[0])*1E6));
mMapView01.getOverlays().add(new MyOverLay(startGP,startGP,1));
GeoPoint gp1;
GeoPoint gp2 = startGP;
for(int i=1;i<pairs.length;i++) // the last one would be crash
{
lngLat = pairs[i].split(",");
gp1 = gp2;
// watch out! For GeoPoint, first:latitude, second:longitude
gp2 = new GeoPoint((int)(Double.parseDouble(lngLat[1])*1E6),(int)(Double.parseDouble(lngLat[0])*1E6));
mMapView01.getOverlays().add(new MyOverLay(gp1,gp2,2,color));
Log.d("Draw path","pair:" + pairs[i]);
}
mMapView01.getOverlays().add(new MyOverLay(dest,dest, 3)); // use the default color
}
}catch (MalformedURLException e){
e.printStackTrace();
}
catch (IOException e){
e.printStackTrace();
}
catch (ParserConfigurationException e){
e.printStackTrace();
}
catch (SAXException e){
e.printStackTrace();
}
}
public class overLay extends ItemizedOverlay<OverlayItem>{
private List<OverlayItem> mOverlays = new ArrayList<OverlayItem>();
GeoPoint gp1;
Drawable marker;
public overLay(Drawable marker) {
super(marker);
this.marker=marker;
}
public void addOverlay(OverlayItem overlay){
mOverlays.add(overlay);
Log.e(" Map Overlay __", " adding new item "+overlay);
populate();
}
@Override
public boolean draw(Canvas canvas, MapView mapView, boolean shadow, long when){
Projection projection = mapView.getProjection();
Point point = new Point();
for(int i=0;i<mOverlays.size();i++){
OverlayItem g = getItem(i);
gp1=g.getPoint();
projection.toPixels(gp1, point);
Bitmap bmp = BitmapFactory.decodeResource(
getResources(), R.drawable.marker_red);
canvas.drawBitmap(bmp, point.x-10, point.y-35, null);
}
return super.draw(canvas, mapView, shadow, when);
}
@Override
public boolean onTap(int index){
/* GeoPonit p MapView mapView*/
OverlayItem item = getItem(index);
GeoPoint gp=item.getPoint();
String msg=item.getSnippet();
mapView.getController().animateTo(gp);
Log.e("-- map view --", " marker clicked "+gp);
LayoutInflater infalter=getLayoutInflater();
final LinearLayout table = (LinearLayout)infalter.inflate(R.layout.popup_baloon_layout, null);
table.setWillNotDraw(false);
final MapView.LayoutParams lp2 = new MapView.LayoutParams(
150,100,gp,-15,-10,MapView.LayoutParams.BOTTOM_CENTER);
TextView addrs=(TextView)table.findViewById(R.id.address);
addrs.setText(msg);
ImageView call_img=(ImageView)table.findViewById(R.id.imageView1);
call_img.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.e("__ Home __", " making call to 12345");
Bundle bundle=new Bundle();
mapView.removeView(table);
Intent intent = new Intent(Intent.ACTION_CALL);
intent.setData(Uri.parse("tel:" + bundle.getString("12345")));
HomeActivity.this.startActivity(intent);
}
});
table.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mapView.removeView(table);
//table=null;
}
});
mapView.addView(table,lp2);
return true;
}
@Override
protected OverlayItem createItem(int i) {
Log.e("Map Overlay __", " creating overlay item "+i);
return mOverlays.get(i);
}
@Override
public int size() {
Log.e("Map Overlay __", " getting overlay size ");
return mOverlays.size();
}
}
public class MyOverLay extends Overlay{
private GeoPoint gp1;
private GeoPoint gp2;
//private int mRadius=6;
private int mode=0;
private int defaultColor;
//private String text="";
//private Bitmap img = null;
private Context context;
public MyOverLay(GeoPoint gp1,GeoPoint gp2,int mode,Context context){// GeoPoint is a int. (6E)
this.gp1 = gp1;
this.gp2 = gp2;
this.mode = mode;
defaultColor = 999; // no defaultColor
this.context=context;
}
public MyOverLay(GeoPoint gp1,GeoPoint gp2,int mode, int defaultColor,Context context){
this.gp1 = gp1;
this.gp2 = gp2;
this.mode = mode;
this.defaultColor = defaultColor;
this.context=context;
}
/*public void setText(String t){
this.text = t;
}
public void setBitmap(Bitmap bitmap){
this.img = bitmap;
}*/
public int getMode(){
return mode;
}
@Override
public boolean draw(Canvas canvas, MapView mapView, boolean shadow, long when){
Projection projection = mapView.getProjection();
if (shadow == false){
Paint paint = new Paint();
paint.setAntiAlias(true);
Point point = new Point();
projection.toPixels(gp1, point);
// mode=1：start
if(mode==1){
if(defaultColor==999)
paint.setColor(Color.BLUE);
else
paint.setColor(defaultColor);
Bitmap bmp = BitmapFactory.decodeResource(
context.getResources(), R.drawable.marker_red);
canvas.drawBitmap(bmp, point.x-10, point.y-35, null);
/*RectF oval=new RectF(point.x - mRadius, point.y - mRadius,
point.x + mRadius, point.y + mRadius);*/
// start point
//canvas.drawOval(oval, paint);
}
// mode=2：path
else if(mode==2){
if(defaultColor==999)
paint.setColor(Color.RED);
else
paint.setColor(defaultColor);
Point point2 = new Point();
projection.toPixels(gp2, point2);
paint.setStrokeWidth(5);
paint.setAlpha(120);
canvas.drawLine(point.x, point.y, point2.x,point2.y, paint);
}
/* mode=3：end */
else if(mode==3){
/* the last path */
if(defaultColor==999)
paint.setColor(Color.GREEN);
else
paint.setColor(defaultColor);
Point point2 = new Point();
projection.toPixels(gp2, point2);
paint.setStrokeWidth(5);
paint.setAlpha(120);
canvas.drawLine(point.x, point.y, point2.x,point2.y, paint);
Bitmap bmp = BitmapFactory.decodeResource(
context.getResources(), R.drawable.marker_red);
canvas.drawBitmap(bmp, point.x-16, point.y-38, null);
/*RectF oval=new RectF(point2.x - mRadius,point2.y - mRadius,
point2.x + mRadius,point2.y + mRadius);
paint.setAlpha(255);
canvas.drawOval(oval, paint);*/
}
}
return super.draw(canvas, mapView, shadow, when);
}
@Override
public boolean onTap(GeoPoint p, MapView mapView){
return false;
}