需要注意

File file =new File(Uri.decode(uri.getEncodedPath()));
Document document = reader.read(file);

需要把本地文件路径先创建成文件类型然后传给Document
解析名称的时候需要注意gx:xxx 只需要 “:” 后面的名称

生成Kml方法 filePath 生成路径

public void createKml(String filePath) {
        Element root = DocumentHelper.createElement("kml"); //根节点是kml
        Document document = DocumentHelper.createDocument(root);
        document.setXMLEncoding("UTF-8"); //给根节点kml添加属性

        root.addNamespace("", "http://www.opengis.net/kml/2.2");
        root.addNamespace("gx", "http://www.google.com/kml/ext/2.2"); //给根节点kml添加子节点

        Element documentElement = root.addElement("Document");
        Element folderDe = documentElement.addElement("Folder");

        folderDe.addElement("Name").addText("Dome生成");
        Element PlacemarkDe = folderDe.addElement("Placemark");
        Element styleE = PlacemarkDe.addElement("Style");
        Element LineStyle = styleE.addElement("LineStyle");
        LineStyle.addElement("color").addText("ed0000ff");
        LineStyle.addElement("width").addText("5");

        PlacemarkDe.addElement("name").addText("运动轨迹");
        Element trackE = PlacemarkDe.addElement("gx:Track");
        for (int s=0;s < record.getPathline().size();s++){
            LatLng tp = record.getPathline().get(s);
            trackE.addElement("gx:coord").addText(tp.latitude + "," + tp.longitude);
            trackE.addElement("when").setText(record.getmPathLineDatas().get(s));
        }

        try {
            Writer fileWriter = new FileWriter(filePath); //换行
            OutputFormat format = new OutputFormat();
            format.setEncoding("UTF-8");
            format.setNewlines(true); // 生成缩进
            format.setIndent(true); //dom4j提供了专门写入文件的对象
            XMLWriter xmlWriter = new XMLWriter(fileWriter, format);
            xmlWriter.write(document);
            xmlWriter.flush();
            xmlWriter.close();

            ToastUtils.showLong("生成成功");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

解析Kml方法

        //解析kml.
        mHandler.post(new Runnable() {
            @Override
            public void run() {
                //查看文件类型
                Intent intent=getIntent();
                if (intent!=null){
                    String action = intent.getAction();
                    if(intent.ACTION_VIEW.equals(action)) {
                        LogUtils.v(intent.getDataString());
                        Uri uri = intent.getData();
                        LogUtils.v("url", Uri.decode(uri.getEncodedPath()).replace("/external_files/storage/emulated/0/", "/sdcard")+"     "+Uri.decode(uri.getEncodedPath()).indexOf("/external_files/storage/emulated/0"));
                        URLConnection.getFileNameMap().getContentTypeFor(Uri.decode(uri.getEncodedPath()));
                        LogUtils.v("文件类型",URLConnection.getFileNameMap().getContentTypeFor(Uri.decode(uri.getEncodedPath())));

                        SAXReader reader = new SAXReader();
                        Document document = null;
                        try {
                            File file=null;
                               //小米 微信
                            if (Uri.decode(uri.getEncodedPath()).indexOf("/external_files/storage/emulated/0/")==-1){
                                file = new File(Uri.decode(uri.getEncodedPath()).replace("/external/", "/sdcard/"));
                            }else {
                                //小米 QQ
                                file = new File(Uri.decode(uri.getEncodedPath()).replace("/external_files/storage/emulated/0/", "/sdcard/"));
                            }

                            document = reader.read(file);
                            Element rootElement = document.getRootElement();
                            Element responseDocument = rootElement.element("Document").element("Folder").element("Placemark");
                                Element responseTrack = responseDocument.element("Track");
                            List listCoord = responseTrack.elements("coord");
                            List listWhen = responseTrack.elements("when");

                            PathRecord pathRecord = new PathRecord();
                            for (int i = 0; i < listCoord.size(); i++) {
                                Element element = (Element) listCoord.get(i);
                                Element element2 = (Element) listWhen.get(i);

                                String[] lat_lng = element.getText().split(",");
                                LatLng latLng = new LatLng(Double.parseDouble(lat_lng[0]), 
                                Double.parseDouble(lat_lng[1]));
                                LogUtils.v(Double.parseDouble(lat_lng[0])+"   "+Double.parseDouble(lat_lng[1]));
                                pathRecord.addpoint(latLng);
                                pathRecord.addData(element2.getText());
                            }

                            aMap.addPolyline(new PolylineOptions().addAll(pathRecord.getPathline()).width(10).color(Color.argb(255, 1, 1, 1)));
                        }catch (DocumentException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }
        });

我的这个需求是从微信和qq用其他应用打开 然后解析到地图上

把应用添加到微信，QQ用其他应用打开列表 把下面代码放到第一个打开的Activity 下面

  <intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />
                <data android:scheme="file" tools:ignore="AppLinkUrlError" />
                <data android:scheme="content" />
                <data android:mimeType="application/vnd.google-earth.kml+xml" />
            </intent-filter>