public class MapTranslateUtils {/**
     * 坐标转换，腾讯地图（火星坐标）转换成百度地图坐标
     * @param lat 腾讯纬度
     * @param lon 腾讯经度
     * @return 返回结果：经度,纬度
     */
    public static  double[] map_hx2bd(double lat, double lon){double bd_lat;double bd_lon;double x_pi=3.14159265358979324;double x = lon, y = lat;double z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);double theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);bd_lon = z * Math.cos(theta) + 0.0065;bd_lat = z * Math.sin(theta) + 0.006;double[] doubles = new double[]{bd_lat,bd_lon};System.out.println("bd_lat:"+bd_lat);System.out.println("bd_lon:"+bd_lon);return  doubles;}/**
     * 坐标转换，百度地图坐标转换成腾讯地图坐标
     * @param lat  百度坐标纬度
     * @param lon  百度坐标经度
     * @return 返回结果：纬度,经度
     */
    public static  double[] map_bd2hx(double lat, double lon){double tx_lat;double tx_lon;double x_pi=3.14159265358979324;double x = lon - 0.0065, y = lat - 0.006;double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi);double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);tx_lon = z * Math.cos(theta);tx_lat = z * Math.sin(theta);double[] doubles = new double[]{tx_lat,tx_lon};return doubles;}}

ok，现在百度地图坐标系，火星坐标系都在手了。开干.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:background="#ffffff"android:orientation="vertical">

<com.zk.common.TitleBarViewandroid:id="@+id/titleBar"android:layout_width="fill_parent"android:layout_height="wrap_content"android:background="@color/title_bg"/>

<WebViewandroid:id="@+id/web_wv"android:layout_width="fill_parent"android:layout_height="fill_parent"/>

</LinearLayout>

public class WebViewActivity extends AppCompatActivity {private WebView detailsWebView;private String mUrl;private Handler handler;private ProgressDialog pd;private String mTitle;public static void launch(Activity activity, String url, String title) {Intent intent = new Intent(activity, WebViewActivity.class);intent.putExtra("url", url);intent.putExtra("title", title);activity.startActivity(intent);}@Override
    protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_web_view);mUrl = this.getIntent().getStringExtra("url");mTitle = this.getIntent().getStringExtra("title");detailsWebView = (WebView) findViewById(R.id.web_wv);detailsWebView.getSettings().setJavaScriptEnabled(true);detailsWebView.getSettings().setDomStorageEnabled(true);detailsWebView.requestFocus(View.FOCUS_DOWN);detailsWebView.getSettings().setUserAgentString("User-Agent");detailsWebView.setWebViewClient(new WebViewClient() {@Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {view.loadUrl(url);return false;}});// 设置web视图客户端
        detailsWebView.setWebChromeClient(new WebChromeClient() {@Override
            public void onProgressChanged(WebView view, int progress) {// 载入进度改变而触发

                if (progress == 100) {handler.sendEmptyMessage(1);// 如果全部载入,隐藏进度对话框 }
                    detailsWebView.setVisibility(View.VISIBLE);}super.onProgressChanged(view, progress);}@Override
            public void onReceivedTitle(WebView view, String title) {super.onReceivedTitle(view, title);}});detailsWebView.setVisibility(View.GONE);pd = new ProgressDialog(this);pd.setProgressStyle(ProgressDialog.STYLE_SPINNER);pd.setMessage("数据载入中，请稍候！");handler = new Handler() {public void handleMessage(Message msg) {// 定义一个Handler，用于处理下载线程与UI间通讯
                super.handleMessage(msg);if (!Thread.currentThread().isInterrupted()) {switch (msg.what) {case 0:pd.show();// 显示进度对话框
                            break;case 1:pd.hide();// 隐藏进度对话框，不可使用dismiss()、cancel(),否则再次调用show()时，显示的对话框小圆圈不会动。
                            break;}}}};loadurl(detailsWebView, mUrl);}public void loadurl(final WebView view, final String url) {handler.post(new Runnable() {@Override
            public void run() {handler.sendEmptyMessage(0);view.loadUrl(url);// 载入网页
            }});}
}

private void selectGaode() {this.dismiss();double[] txDesLatLng = MapTranslateUtils.map_bd2hx(desLat, desLng);double[] txNowLatLng = MapTranslateUtils.map_bd2hx(nowLat, nowLng);if (isInstallByread("com.autonavi.minimap")) {try {Intent intentOther = new Intent("android.intent.action.VIEW",Uri.parse("androidamap://navi?sourceApplication=amap&lat="
                            + desLat + "&lon=" + desLng + "&dev=1&stype=0"));intentOther.setPackage("com.autonavi.minimap");intentOther.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);mActivity.startActivity(intentOther);} catch (Exception e) {String url = "http://m.amap.com/?from="
                    + nowLat + "," + nowLng
                    + "(from)&to=" + desLat + "," + desLng + "(to)&type=0&opt=1&dev=0";WebViewActivity.launch(mActivity, url, "网页版地图导航");}} else {String url = "http://m.amap.com/?from="
                + txNowLatLng[0] + "," + txNowLatLng[1]+ "(from)&to=" + txDesLatLng[0] + "," + txDesLatLng[1] + "(to)&type=0&opt=1&dev=0";WebViewActivity.launch(mActivity, url, "网页版地图导航");}}

private void selectTencent() {this.dismiss();double[] txDesLatLng = MapTranslateUtils.map_bd2hx(desLat, desLng);double[] txNowLatLng = MapTranslateUtils.map_bd2hx(nowLat, nowLng);String url = "http://apis.map.qq.com/uri/v1/routeplan?type=drive&from=&fromcoord="
            + txNowLatLng[0] + "," + txNowLatLng[1]+ "&to=&tocoord=" + txDesLatLng[0] + "," + txDesLatLng[1] + "&policy=0&referer=myapp";WebViewActivity.launch(mActivity, url, "网页版地图导航");
}

另外 此处是 高德地图 对其他坐标进行转换的api：