调用地图导航 api实现

导航

百度方式

private void openBaiduMap(double lon, double lat, String title, String describle) {

try {

StringBuilder loc = new StringBuilder();

loc.append("intent://map/direction?origin=latlng:");

loc.append(lat);

loc.append(",");

loc.append(lon);

loc.append("|name:");

loc.append("我的位置");

loc.append("&destination=latlng:");

loc.append(lat);

loc.append(",");

loc.append(lon);

loc.append("|name:");

loc.append(describle);

loc.append("&mode=driving");

loc.append("&referer=Autohome|GasStation#Intent;scheme=bdapp;package=com.baidu.BaiduMap;end");

Intent intent = Intent.getIntent(loc.toString());

if (isInstallPackage("com.baidu.BaiduMap")) {

startActivity(intent); //启动调用

Log.e("GasStation", "百度地图客户端已经安装");

} else {

Log.e("GasStation", "没有安装百度地图客户端");

}

} catch (Exception e) {

e.printStackTrace();

}

}

高德方式

高德-uri-api

private void openGaoDeMap(double lon, double lat, String title, String describle) {

try {

double[] gd_lat_lon = bdToGaoDe(lon, lat);

StringBuilder loc = new StringBuilder();

loc.append("androidamap://viewMap?sourceApplication=XX");

loc.append("&poiname=");

loc.append(describle);

loc.append("&lat=");

loc.append(gd_lat_lon[0]);

loc.append("&lon=");

loc.append(gd_lat_lon[1]);

loc.append("&dev=0");

Intent intent = Intent.getIntent(loc.toString());

startActivity(intent);

} catch (Exception e) {

e.printStackTrace();

}

}

判定是否装有地图APP

private boolean isInstallPackage(String packageName) {

return new File("/data/data/" + packageName).exists();

}

高德 com.autonavi.minimap

百度 com.baidu.BaiduMap

GCJ-02 == BD-09 地图坐标系互转

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;
}

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;
}