我正在开发一个应用程序，因为我可以显示源和目标之间的路由并显示有关该路由的一些描述。现在我正在尝试将该说明下载到我的手机中。我被搜索如此，但我没有找到任何相关的例子。请分享这个
的任何例子mycode的
private class GetRouteTask extends AsyncTask<String, Void, String>{
private ProgressDialog pDialog;
String response="";
private WeakReference<ShowRoutesInMap> weakRef;
//public ArrayList<String> alter;
public ArrayList<String> route1;
public ArrayList<String> route2;
public ArrayList<String> route3;
PolylineOptions rectLine = null;
PolylineOptions rectLine1 = null;
PolylineOptions rectLine2 = null;
PolylineOptions rectLine3 = null;
public ArrayList<LatLng> directionPoint;
private ArrayList<String> alter;
public GetRouteTask(ShowRoutesInMap context){
this.weakRef =new WeakReference<ShowRoutesInMap>(context);
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
pDialog = new ProgressDialog(ShowRoutesInMap.this);
if(!isFinishing()){
pDialog.setMessage("Please wait For TrafficJam Route...");
pDialog.setCancelable(false);
pDialog.show();
}
}
@Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
try{
if(sourcePosition!=null && destinationPostion!=null){
document = v2GetRouteDirection.getDocument(sourcePosition, destinationPostion,GMapV2Direction.MODE_DRIVING);
}
}
catch(Exception e){
return "exception caught";
}
response = "Success";
return response;
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
// if(!isFinishing()){
pDialog.dismiss();
// }
route1 = new ArrayList<String>();
route2 = new ArrayList<String>();
route3 = new ArrayList<String>();
if(result.equalsIgnoreCase("exception caught")){
Toast.makeText(getApplicationContext(), "INVALID VALUES", Toast.LENGTH_LONG).show();
}
else{
if (weakRef.get() != null && ! weakRef.get().isFinishing()){
// if(response.equalsIgnoreCase("Success")){
alter = v2GetRouteDirection.getAlternativeRoutes(document);
int duration = v2GetRouteDirection.getDurationValue(document);
Log.e("TRAFFIC DURATIONTIME",""+duration);
int trfficClearTime = v2GetRouteDirection.getDistanceValue(document);
Log.e("TRAFFIC TIME", ""+trfficClearTime);
for( j=0;j<alter.size();j++){
directionPoint =v2GetRouteDirection.getDirection(document, j);
ArrayList<String> desc = v2GetRouteDirection.getDescription(document,j);
if(j==0){
for(int l=0;l<desc.size();l++){
route1.add(desc.get(l));
Log.e("ROUTE1", desc.get(l).replace("\\<.*?>",""));
}
}
else if(j==1){
for(int l=0;l<desc.size();l++){
route2.add(desc.get(l));
Log.e("ROTE2", desc.get(l).replace("\\<.*?>",""));
}
}
else if(j==2){
for(int l=0;l<desc.size();l++){
route3.add(desc.get(l));
Log.e("ROTE2", desc.get(l).replace("\\<.*?>",""));
}
}
rectLine = new PolylineOptions().width(5).color(Color.RED).geodesic(true);
for (int i = 0; i < directionPoint.size(); i++) {
rectLine.add(directionPoint.get(i));
}
googleMap.addPolyline(rectLine);
getMarkersOnMap(googleMap);
alterRoutes1.setText("");
if(alter.size()==1){
alterRoutes1.setText(alter.get(0));
}
else if(alter.size()>=1 && alter.size()<=2){
alterRoutes1.setText(alter.get(0));
alterRoutes2.setText(alter.get(1));
}
else if(alter.size()>=1 && alter.size()<=3){
alterRoutes1.setText(alter.get(0));
alterRoutes2.setText(alter.get(1));
alterRoutes3.setText(alter.get(2));
}
}
}
alterRoutes1.setOnClickListener(new OnClickListener() {
private ArrayList<LatLng> directionPoint1;
@Override
public void onClick(View v) { // TODO Auto-generated method stub
googleMap.clear();
// ArrayList<String> alter = v2GetRouteDirection.getAlternativeRoutes(document);
rectLine1 = new PolylineOptions().width(5).color(Color.GREEN).geodesic(true);
for( int k=0;k<alter.size();k++){
directionPoint1 =v2GetRouteDirection.getDirection(document, k);
for (int i = 0; i < directionPoint1.size(); i++) {
if(k==0){
rectLine1.add(directionPoint1.get(i));
}
}
googleMap.addPolyline(rectLine1);
getMarkersOnMap(googleMap);
}
for(int i=0;i<route1.size();i++){
showDirection.append(route1.get(i).replaceAll("\\<.*?>",""));
}
}
});
alterRoutes2.setOnClickListener(new OnClickListener() {
private ArrayList<LatLng> directionPoint2;
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
googleMap.clear();
showDirection.setText("");
rectLine2 = new PolylineOptions().width(5).color(Color.MAGENTA).geodesic(true);
for( int k=0;k<alter.size();k++){
directionPoint2 =v2GetRouteDirection.getDirection(document, k);
for (int i = 0; i < directionPoint2.size(); i++) {
if(k==1){
rectLine2.add(directionPoint2.get(i));
}
}
googleMap.addPolyline(rectLine2);
getMarkersOnMap(googleMap);
}
for(int i=0;i<route2.size();i++){
showDirection.append(route2.get(i).replaceAll("\\<.*?>",""));
}
}
});
alterRoutes3.setOnClickListener(new OnClickListener() {
private ArrayList<LatLng> directionPoint3;
int count=0;
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
googleMap.clear();
showDirection.setText("");
rectLine3 = new
PolylineOptions().width(5).color(Color.BLUE).geodesic(true);
for( int k=0;k<alter.size();k++){
directionPoint3
=v2GetRouteDirection.getDirection(document, k);
for (int i = 0; i < directionPoint3.size(); i++) {
if(k==2){
rectLine3.add(directionPoint3.get(i));
}
}
googleMap.addPolyline(rectLine3);
getMarkersOnMap(googleMap);
}
for(int i=0;i<route3.size();i++){
showDirection.append(""+ ++count);
showDirection.append(route3.get(i).replaceAll("\\<.*?
>",""));
}
}
});
}
}
}
public void getMarkersOnMap(GoogleMap gmap){
Markeropition1.position(sourcePosition).icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_AZURE))
.flat(true);
Markeropition2.position(destinationPostion).icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_AZURE))
.flat(true);
Markeropition1.draggable(true);
Markeropition2.draggable(true);
gmap.moveCamera(CameraUpdateFactory.newLatLngZoom(sourcePosition,10));
gmap.addMarker(Markeropition1);
gmap.addMarker(Markeropition2);
}
答案 0 :(得分：1)
可以从Api级别19在android中生成pdf文档。您可以从此链接http://developer.android.com/reference/android/graphics/pdf/package-summary.html
中获取参考