android调用外部导航(百度,高德)

高德 com.autonavi.minimap

百度 com.baidu.BaiduMap

百度 如果已安装跳转安装的程序 如果没有安装跳转网页版百度地图

private void openBaiduMap(double lon, double lat, String describle) {
        try {
            StringBuilder loc = new StringBuilder();
            loc.append("intent://map/direction?origin=latlng:");
            loc.append(latitude);
            loc.append(",");
            loc.append(longitude);
            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 {
                LatLng ptMine = new LatLng(latitude, longitude);
                LatLng ptPosition = new LatLng(lat, lon);

                NaviParaOption para = new NaviParaOption()
                        .startPoint(ptMine)
                        .endPoint(ptPosition);
                BaiduMapNavigation.openWebBaiduMapNavi(para, getApplicationContext());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

高德地图

 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();
        }
    }

判断手机是否有app

 private boolean isInstallPackage(String packageName) {
        return new File("/data/data/" + packageName).exists();
    }

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;
    }

调用

    @OnClick({R.id.iv_go})
    public void onViewClicked(View view) {
        switch (view.getId()) {
            case R.id.iv_go:
                openBaiduMap(Double.parseDouble(lng), Double.parseDouble(lat), address);
                break;

        }
    }