Android导出Kml

转载请注明出处：http://blog.csdn.net/hnyzwtf/article/details/51956714
请先阅读：

Java(Android)解析KML文件
Java生成kml文件

这里就直接给出代码了

package com.soil.soilsampling.ui.parsekml;import android.content.Context;import android.content.res.Resources;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.util.Log;import com.soil.soilsampling.R;import com.soil.soilsampling.base.BaseApplication;import com.soil.soilsampling.model.CoordinateAlterSample;import com.soil.soilsampling.support.utils.ToastUtil;import org.dom4j.Document;import org.dom4j.DocumentHelper;import org.dom4j.Element;import org.dom4j.io.OutputFormat;import org.dom4j.io.XMLWriter;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.List;import java.util.zip.ZipEntry;import java.util.zip.ZipOutputStream;/** * Created by GIS on 2016/5/19 0019. *  */public class WriteKml {    private String TAG = "WriteKml";    /*    * 传入两个参数，一是kml的名称，第二个是坐标点的list    * */    public void createKml(String kmlName, List alterSamples) throws Exception    {        Element root = DocumentHelper.createElement("kml");  //根节点是kml        Document document = DocumentHelper.createDocument(root);        //给根节点kml添加属性        root.addAttribute("xmlns", "http://www.opengis.net/kml/2.2")                .addAttribute("xmlns:gx", "http://www.google.com/kml/ext/2.2")                .addAttribute("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance")                .addAttribute("xsi:schemaLocation",                        "http://www.opengis.net/kml/2.2 http://schemas.opengis.net/kml/2.2.0/ogckml22.xsd http://www.google.com/kml/ext/2.2 http://code.google.com/apis/kml/schema/kml22gx.xsd");        //给根节点kml添加子节点  Document        Element documentElement = root.addElement("Document");        documentElement.addElement("name").addText(kmlName); //添加name节点        documentElement.addElement("Snippet").addText(""); //Snippet节点        Element folderElement = documentElement.addElement("Folder");//Folder节点        folderElement.addAttribute("id", "FeatureLayer0");        //给Folder节点添加子节点        folderElement.addElement("name").addText(kmlName);        folderElement.addElement("Snippet").addText("");        //循环添加每一个Placemark节点，有几个坐标点就有几个Placemark节点        for (int i = 0; i < alterSamples.size(); i++) {            Element placeMarkElement = folderElement.addElement("Placemark");            placeMarkElement.addAttribute("id", alterSamples.get(i).getName());            placeMarkElement.addElement("name").addText(alterSamples.get(i).getName());            placeMarkElement.addElement("Snippet").addText("");            placeMarkElement.addElement("description").addCDATA(getCdataContent(alterSamples.get(i).getName(),                    alterSamples.get(i).getName(), String.valueOf(alterSamples.get(i).getX()), String.valueOf(alterSamples.get(i).getY()),                    alterSamples.get(i).getCostValue()));            placeMarkElement.addElement("styleUrl").addText("#IconStyle00");            Element pointElement = placeMarkElement.addElement("Point");            pointElement.addElement("altitudeMode").addText("clampToGround");            //添加每一个坐标点的经纬度坐标            //pointElement.addElement("coordinates").addText("119.39986000,31.13396700000143,0");            pointElement.addElement("coordinates").addText(String.valueOf(alterSamples.get(i).getX()) + "," +                    String.valueOf(alterSamples.get(i).getY()) + "," + "0");        }        Element styleElement = documentElement.addElement("Style");//Style节点        styleElement.addAttribute("id", "IconStyle00");        // IconStyle        Element iconStyleElement = styleElement.addElement("IconStyle");        Element iconElement = iconStyleElement.addElement("Icon");        iconElement.addElement("href").addText("layer0_symbol.png");        iconStyleElement.addElement("scale").addText("0.250000");        // LabelStyle        Element labelStyleElement = styleElement.addElement("LabelStyle");        labelStyleElement.addElement("color").addText("00000000");        labelStyleElement.addElement("scale").addText("0.000000");        // PolyStyle        Element polyStyleElement = styleElement.addElement("PolyStyle");        polyStyleElement.addElement("color").addText("ff000000");        polyStyleElement.addElement("outline").addText("0");        //将生成的kml写出本地        OutputFormat format = OutputFormat.createPrettyPrint();        format.setEncoding("utf-8");//设置编码格式        //将doc.kml写入到/data/data//files目录        FileOutputStream outputStream = BaseApplication.getContext().openFileOutput("doc.kml", Context.MODE_PRIVATE);        XMLWriter xmlWriter = new XMLWriter(outputStream,format);        xmlWriter.write(document);        xmlWriter.close();        //开始对文件进行压缩，一个kml文件其实是一个压缩文件，里面包含一个kml文件和一个png图标        String docKmlPath = BaseApplication.getContext().getFilesDir().getAbsolutePath() + "//doc.kml";        zipWriteKml(docKmlPath, kmlName);        ToastUtil.show(BaseApplication.getContext(), "导出kml成功");    }    /*    * 将生成的kml文件和drawable下的某个png图标进行压缩，生成最终的kml文件，并保存在/data/data//files目录    * */    public void zipWriteKml(String docKmlPath, String kmlName) throws IOException    {        // 最终生成的kml文件        FileOutputStream fileOutput = BaseApplication.getContext().openFileOutput(kmlName + ".kmz", Context.MODE_PRIVATE);        OutputStream os = new BufferedOutputStream( fileOutput);        ZipOutputStream zos = new ZipOutputStream(os);        byte[] buf = new byte[8192];        int len;        //压缩data/data/package name/files目录下的doc.kml        File file = new File(docKmlPath);        if ( !file.isFile() )            Log.d(TAG, "doc.kml is nonexist");        ZipEntry ze = new ZipEntry( file.getName() );        zos.putNextEntry( ze );        BufferedInputStream bis = new BufferedInputStream( new FileInputStream( file ) );        while ( ( len = bis.read( buf ) ) > 0 ) {            zos.write( buf, 0, len );        }        zos.closeEntry();        // 压缩drawable目录下的图片        Resources r = BaseApplication.getContext().getResources();        Bitmap bitmap = BitmapFactory.decodeResource(r, R.drawable.layer0_symbol);        ByteArrayOutputStream baos = new ByteArrayOutputStream();        bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);        InputStream input = new ByteArrayInputStream(baos.toByteArray());        int temp = 0;        ZipEntry entry2 = new ZipEntry("layer0_symbol.png");        zos.putNextEntry(entry2);        while ((temp = input.read()) != -1)        {            zos.write(temp);        }        input.close();        zos.closeEntry();       /* for (int i=0;i < files.length;i++) {            File file = new File(files[i]);            if ( !file.isFile() )                continue;            ZipEntry ze = new ZipEntry( file.getName() );            zos.putNextEntry( ze );            BufferedInputStream bis = new BufferedInputStream( new FileInputStream( file ) );            while ( ( len = bis.read( buf ) ) > 0 ) {                zos.write( buf, 0, len );                Log.d(TAG, "we are zipping "+ file.getName());            }            zos.closeEntry();        }*/        zos.closeEntry();        zos.close();    }    /*    * 生成kml的html备注,在description节点下    * */    public String getCdataContent(String id, String placeMarkName, String x, String y, String costValue)    {        StringBuffer buffer = new StringBuffer();        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("").append(placeMarkName).append("
");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("");        buffer.append("ID ").append(id).append("
name ").append(placeMarkName).append("
X ").append(x).append("
Y ").append(y).append("
CostValue ").append(costValue).append("
");        buffer.append("
");        buffer.append("");        buffer.append("");        String cDataContent = buffer.toString();        return cDataContent;    }}

CoordinateAlterSample类如下

/* * 服务器返回的样点，每一个样点包括一个name,x,y,costValue * */public class CoordinateAlterSample implements Serializable {    private double x;    private double y;    private String name;    private String costValue;    public String getCostValue() {        return costValue;    }    public void setCostValue(String costValue) {        this.costValue = costValue;    }    public double getX() {        return x;    }    public void setX(double x) {        this.x = x;    }    public double getY() {        return y;    }    public void setY(double y) {        this.y = y;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }}

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