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我目前正在使用一个kml文件，我使用了一个xpath解析器。但是有些文件与其他文件不同。
第一个文件有两种不同的样式：Style1和Style2。然而在大多数这样的文件中，这些style1和style2是不同的链接。我的意思是这里的链接文件中的style1在其他一些文件style2中。所以如果我想要硬编码来获得style1，它仍然不适用于所有文件。
第二个文件只有一种风格，这个工作正确。
所以这些文件的要点是用多个值（Style2）获取颜色和坐标的样式。不过，我对xPath非常陌生，我不知道如何检查哪种样式具有颜色属性，并获取样式值，然后使用此样式属性获取多个坐标。 （如果你不明白这一点，请评论，我会尝试以不同的方式解释它）。
文件一：（这还不行）。
<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://earth.google.com/kml/2.2">
<Document>
<name>Wandelroute Molenwijk</name>
<description><![CDATA[]]></description>
<Style id="style1">
<IconStyle>
<Icon>
<href>http://maps.gstatic.com/mapfiles/ms2/micons/red-dot.png</href>
</Icon>
</IconStyle>
</Style>
<Style id="style2">
<LineStyle>
<color>ff1b1a1f</color>
<width>10</width>
</LineStyle>
</Style>
<Placemark>
<name>Startpunt wandelroute</name>
<description><![CDATA[<div dir="ltr">Startpunt van de wandelroute bij de Montessorischool</div>]]></description>
<styleUrl>#style1</styleUrl>
<Point>
<coordinates>4.824704,52.663391,0.000000</coordinates>
</Point>
</Placemark>
<Placemark>
<name>Wandelroute Molenwijk</name>
<description><![CDATA[]]></description>
<styleUrl>#style2</styleUrl>
<LineString>
<tessellate>1</tessellate>
<coordinates>
4.824736,52.663383,0.000000
4.825798,52.662617,0.000000
4.825938,52.662231,0.000000
4.826034,52.662102,0.000000
4.826335,52.661938,0.000000
4.826528,52.661732,0.000000
4.826474,52.661568,0.000000
4.826292,52.661381,0.000000
4.826163,52.661308,0.000000
4.826463,52.661064,0.000000
4.826356,52.660801,0.000000
4.826227,52.660538,0.000000
4.826066,52.660202,0.000000
4.827000,52.660168,0.000000
4.827332,52.659935,0.000000
4.826775,52.659641,0.000000
4.827665,52.658951,0.000000
4.827676,52.658730,0.000000
4.828255,52.658691,0.000000
4.828770,52.658581,0.000000
4.829135,52.658192,0.000000
4.828963,52.657879,0.000000
4.828920,52.657436,0.000000
4.828985,52.657200,0.000000
4.828899,52.656891,0.000000
4.828942,52.656654,0.000000
4.829221,52.656395,0.000000
4.829564,52.656200,0.000000
4.830723,52.656277,0.000000
4.831195,52.656654,0.000000
4.831753,52.656822,0.000000
4.832225,52.657097,0.000000
4.832139,52.657513,0.000000
4.831839,52.657761,0.000000
4.831302,52.657825,0.000000
4.831109,52.658073,0.000000
4.831173,52.658436,0.000000
4.831173,52.658932,0.000000
4.830101,52.659023,0.000000
4.829950,52.658932,0.000000
4.829929,52.658661,0.000000
4.829757,52.658646,0.000000
4.829500,52.658684,0.000000
4.829371,52.658684,0.000000
4.829221,52.658592,0.000000
4.828920,52.658592,0.000000
4.828770,52.658581,0.000000
</coordinates>
</LineString>
</Placemark>
<Folder><Placemark><Style><LineStyle><color>ff1b1a1f</color></LineStyle></Style></Placemark></Folder></Document>
</kml>
文件2：（这一个正在工作），其到达显示该路线的属性
<?xml version="1.0" encoding="utf-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
<Document><Folder><name>Route</name>
<Schema name="Route" id="Route">
<SimpleField name="Name" type="string"/>
<SimpleField name="Description" type="string"/>
<SimpleField name="name" type="string"/>
<SimpleField name="cmt" type="string"/>
<SimpleField name="desc" type="string"/>
<SimpleField name="src" type="string"/>
<SimpleField name="link1_href" type="string"/>
<SimpleField name="link1_text" type="string"/>
<SimpleField name="link1_type" type="string"/>
<SimpleField name="link2_href" type="string"/>
<SimpleField name="link2_text" type="string"/>
<SimpleField name="link2_type" type="string"/>
<SimpleField name="number" type="int"/>
<SimpleField name="type" type="string"/>
<SimpleField name="gpxx_Track" type="string"/>
</Schema>
<Placemark>
<name>Route</name>
<Style><LineStyle><color>ff00ccff</color></LineStyle><PolyStyle><fill>0</fill></PolyStyle></Style>
<ExtendedData><SchemaData schemaUrl="#Route">
<SimpleData name="Name">Route</SimpleData>
<SimpleData name="gpxx_Track"><gpxx:DisplayColor>Red</gpxx:DisplayColor></SimpleData>
</SchemaData></ExtendedData>
<LineString><coordinates>6.1879098,52.2997009,0 6.187073,52.3000289,0 6.1867726,52.300042,0 6.1861503,52.2995499,0 6.1858821,52.2991628,0 6.185056,52.2992744,0 6.1833823,52.2994187,0 6.1836183,52.2990907,0 6.1845732,52.2980015,0 6.1845732,52.2975357,0 6.1845624,52.2974832,0 6.1850238,52.2964596,0 6.1850131,52.2964268,0 6.1841118,52.2965515,0 6.1831033,52.2963284,0 6.1825776,52.2980146,0 6.182524,52.2987495,0 6.1825776,52.2994581,0 6.1822665,52.2994909,0 6.1826098,52.3009212,0 6.182642,52.301492,0 6.1831999,52.3023252,0 6.1836827,52.3022399,0 6.1841655,52.3022005,0 6.1847878,52.3022333,0 6.1853564,52.3022005,0 6.1859787,52.3023121,0 6.1867404,52.3021349,0 6.1870623,52.3015838,0 6.1878133,52.3013542,0 6.18806,52.3013608,0 6.1885321,52.3011902,0 6.1904097,52.3008228,0 6.1907101,52.3010786,0 6.1908603,52.3011246,0 6.1913431,52.3013411,0 6.1920834,52.3014854,0 6.1937141,52.3017347,0 6.1938858,52.2991235,0 6.1928558,52.2993072,0 6.1925125,52.2992941,0 6.1918688,52.2993859,0 6.1913109,52.2996156,0 6.1906779,52.2999174,0 6.1906779,52.2998386,0 6.1905277,52.2995303,0 6.1902165,52.2993072,0 6.189959,52.2992744,0 6.1896479,52.2990251,0 6.1895514,52.2988085,0 6.1890256,52.2986773,0 6.1880171,52.2994581,0 6.1879098,52.299668,0 </coordinates></LineString>
</Placemark>
</Folder></Document></kml>
代码。这只适用于第二个文件。
public class KMLTask extends AsyncTask<String, Void, String> {
private int mRouteId;
private String color;
private OnRouteLatLngResult listener;
public KMLTask(int id) {
mRouteId = id;
}
public KMLTask(OnRouteLatLngResult listener) {
this.listener = listener;
}
@Override
protected String doInBackground(String... params) {
String coordinates = null;
try {
URL u = new URL(ApiController.BASE_FILE_URL + params[0]);
XPath xPath = XPathFactory.newInstance().newXPath();
coordinates = xPath.evaluate("//*[local-name()='coordinates']",
new InputSource(u.openStream()));
color = xPath.evaluate("//*[local-name()='color']",
new InputSource(u.openStream()));
} catch (MalformedURLException e) {
Log.e(TAG, "Malformed URL!", e);
} catch (XPathExpressionException e) {
Log.e(TAG, "XPathExpression Exception!", e);
} catch (IOException e) {
Log.e(TAG, "IOException!", e);
}
return coordinates;
}
private String[] splitStringEvery(String s, int interval) {
int arrayLength = (int) Math
.ceil(((s.length()/(double) interval)));
String[] result = new String[arrayLength];
int j = 0;
int lastIndex = result.length - 1;
for (int i = 0; i < lastIndex; i++) {
result[i] = s.substring(j, j + interval);
j += interval;
} // Add the last bit
result[lastIndex] = s.substring(j);
return result;
}
@Override
protected void onPostExecute(String coordinates) {
Log.d("Cursor", color);
if (coordinates != null) {
Matcher m = Pattern.compile("([0-9.]+),([0-9.]+)").matcher(
coordinates);
// LatLngBounds.Builder builder = new LatLngBounds.Builder();
PolylineOptions rectOptions = new PolylineOptions();
if (color.length() > 0) {
String[] arColor = splitStringEvery(color, 2);
int lineColor = Color.parseColor("#" + arColor[3]
+ arColor[2] + arColor[1]);
rectOptions.color(lineColor);
} else {
rectOptions.color(Color.RED);
}
while (m.find()) {
LatLng ll = new LatLng(Double.parseDouble(m.group(2)),
Double.parseDouble(m.group(1)));
rectOptions.add(ll);
// builder.include(ll);
}
m.reset();
m.find();
LatLng latlong = new LatLng(Double.parseDouble(m.group(2)),
Double.parseDouble(m.group(1)));
// mItem.mRoute.mTmpLatLng = Double.parseDouble(m.group(2)) +
// "," +
// Double.parseDouble(m.group(1));
if (listener != null) {
listener.onResult(latlong);
return;
}
addMarkerRoute(mRouteId, latlong);
addPolyline(mRouteId, rectOptions);
// CameraUpdate cu =
// CameraUpdateFactory.newLatLngBounds(builder.build(),
// LOCATION_PADDING);
// mGoogleMap.moveCamera(cu);
setMapBounds();
}
}
}
仍然只显示第一个协调。 – 2014-11-05 11:12:08
@JordiSipkens你可以尝试再次使用更新的XPath（请注意括号） – har07 2014-11-05 11:29:13
Bingo！ Thx @ har07帮助我:) – 2014-11-05 12:34:32