url_launcher 更新后如何启动谷歌地图 uri？

Question

我已经将我的 flutter 应用程序包包括url_launcher package 从6.0.20更新到6.1.2 。

更新后，许多 Android 用户（API 30/31/32）报告由于错误，他们无法使用 Google 地图应用程序启动导航到定义的点（纬度和经度）：

Webpage not available. 

Webpage not available
The webpage at intent://maps.app.goo.gl/?
link=https://www.google.com/maps/dir//45.8597077,.........
could not be loaded because:
net: ERR_UNKNOWN_URL_SCHEME

这是我使用6.0.20的工作代码

final String gMapsUrl = 'https://www.google.com/maps/dir/api=1&destination=$latitude,$longitude&travelmode=driving';

if (Platform.isAndroid && await canLaunch(gMapsUrl)) {
  await launch(gMapsUrl);
}

这是与6.1.2不兼容的

 final String gMapsUrl = 'https://www.google.com/maps/dir/api=1&destination=$latitude,$longitude&travelmode=driving';

if (Platform.isAndroid && await canLaunchUrl(gMapsUri)) {
  await launchUrl(gMapsUri);
} 

现在哪个是启动谷歌地图 url 以启动 inApp 或 web 浏览器导航而不强制用户使用 inApp 或 Web 导航的正确方法？

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Answer 1

声明应用程序要打开 URL。

<!-- Place inside the <queries> element. -->
<intent>
  <action android:name="android.intent.action.VIEW" />
  <category android:name="android.intent.category.BROWSABLE" />
  <data android:scheme="https" />
</intent>

Answer 2

可能在这两个版本之间更改了一些默认值。 现在指定mode我解决了强制打开应用程序的问题：

await launchUrl(gMapsUri, mode: LaunchMode.externalApplication);