通过在Android意图启动谷歌地图路线 [英] Launching Google Maps Directions via an intent on Android

问题描述

我的应用程序需要显示来自谷歌地图的方向到B，但我不想把谷歌地图在我的应用程序 - 相反，我想用一个Intent来启动它。这可能吗？如果是的话，怎么办？

My app needs to show Google Maps directions from A to B, but I don't want to put the Google Maps into my application - instead, I want to launch it using an Intent. Is this possible? If yes, how?

推荐答案

您可以使用这样的：

Intent intent = new Intent(android.content.Intent.ACTION_VIEW, 
    Uri.parse("http://maps.google.com/maps?saddr=20.344,34.34&daddr=20.5666,45.345"));
startActivity(intent);

要开始从当前位置导航，删除 SADDR 参数和值。

To start the navigation from the current location, remove the saddr parameter and value.

您可以用它代替纬度和经度的实际街道地址。然而，这将带给用户一个对话框，通过浏览器或谷歌地图打开它之间做出选择。

You can use an actual street address instead of latitude and longitude. However this will give the user a dialog to choose between opening it via browser or Google Maps.

如果你在美国，你可以使用一个非官方的方式（因为它是不是官方的，我不建议使用它）。这将会启动谷歌地图导航模式。用它，因为我住的地方它不可没玩过。

If you are in the US, you could use an unofficial way (Since it isn't official, I don't recommend using it). This will fire up Google Maps in navigation mode. Haven't played with it since where I live it isn't available.

Intent intent = new Intent(android.content.Intent.ACTION_VIEW,
    Uri.parse("google.navigation:q=an+address+city"));

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