标签:turn ini ble on() span mini 方便 java dna
项目中的定位商家服务搜索用的是高德地图,毕竟高德在地图这块做的比百度好(个人认为)。这里吐槽下百度的开发平台,上面开发文档及案例写的真不好,想找某个问题点很难找到和定位,希望百度改善下。
高德转百度(火星坐标gcj02ll–>百度坐标bd09ll)
private double[] gaoDeToBaidu(double gd_lon, double gd_lat) {
double[] bd_lat_lon = new double[2];
double PI = 3.14159265358979324 * 3000.0 / 180.0;
double x = gd_lon, y = gd_lat;
double z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * PI);
double theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * PI);
bd_lat_lon[0] = z * Math.cos(theta) + 0.0065;
bd_lat_lon[1] = z * Math.sin(theta) + 0.006;
return bd_lat_lon;
}
百度转高德(百度坐标bd09ll–>火星坐标gcj02ll)
private double[] bdToGaoDe(double bd_lat, double bd_lon) {
double[] gd_lat_lon = new double[2];
double PI = 3.14159265358979324 * 3000.0 / 180.0;
double x = bd_lon - 0.0065, y = bd_lat - 0.006;
double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * PI);
double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * PI);
gd_lat_lon[0] = z * Math.cos(theta);
gd_lat_lon[1] = z * Math.sin(theta);
return gd_lat_lon;
}
调用高德导航:
1.AndroidAPI调用方式
/***
*
* @author James
* @Description 调用高德去导航
* @param mLatLng
* @param type
*/
public static void startNavByAmap(LatLng mLatLng, int type, Context mContext) {
try {
// 构造导航参数
NaviPara naviPara = new NaviPara();
// 设置终点位置
naviPara.setTargetPoint(mLatLng);
// 设置导航策略,这里是避免拥堵
naviPara.setNaviStyle(type);
// 调起高德地图导航
AMapUtils.openAMapNavi(naviPara, mContext);
} catch (AMapException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
2,URI调用方式(不想下载SDK包使用URI调用也很方便)
Intent gddtIntent = new Intent("android.intent.action.VIEW",
Uri.parse("androidamap://navi?sourceApplication=“name”&poiname="
+ poi + "&lat=" + lat + "&lon=" + lon + "&dev=" + 0
+ "&style=" + 4));
gddtIntent.addCategory("android.intent.category.DEFAULT");
gddtIntent.setPackage("com.autonavi.minimap");
gddtIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(gddtIntent);
参数
style导航策略
调用百度导航
1.AndroidAPI调用方式
double mLat1 = 39.915291;
double mLon1 = 116.403857;
// 百度大厦坐标
double mLat2 = 40.056858;
double mLon2 = 116.308194;
LatLng pt1 = new LatLng(mLat1, mLon1);
LatLng pt2 = new LatLng(mLat2, mLon2);
NaviParaOption para = new NaviParaOption()
.startPoint(pt1).endPoint(pt2)
.startName("天安门").endName("百度大厦");
try {
// 调起百度地图导航
BaiduMapNavigation.openBaiduMapNavi(para, this);
} catch (BaiduMapAppNotSupportNaviException e) {
e.printStackTrace();
}
2,URI调用方式
intent = Intent
.getIntent("intent://map/navi?location="
+ lonlat[1]
+ ","
+ lonlat[0]
+ "&type="
+ strategyBD
+
"&coordType=bd09ll&src=thirdapp.navi.公司名字#Intent;scheme=bdapp;package=com.baidu.BaiduMap;end");
mContext.startActivity(intent); // 启动调用
参数
strategyBD 导航策略
标签:turn ini ble on() span mini 方便 java dna
原文地址:http://www.cnblogs.com/love540376/p/6483417.html