刚刚学习arcgis for android 现在需要做一个路径分析的功能，后台分析的点坐标不需要我来做，我只需要在前台画线，但是找了好多资料也没找到好用的，请教高人指点。
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http://download.csdn.net/detail/lucky_tom/6544279，
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RoutingParameters rp = new RoutingParameters();
NAFeaturesAsFeature rfaf = new NAFeaturesAsFeature();
@SuppressWarnings("unused")
StopGraphic point1 = new StopGraphic(str);
@SuppressWarnings("unused")
StopGraphic point2 = new StopGraphic(loc);
rfaf.setFeatures(sg);
rfaf.setCompressedRequest(true);
rp.setStops(rfaf);