Flutter:位置许可:使用中或始终使用 [英] Flutter: Location permission: when in use or always

问题描述

我想知道用户是否选择了仅在使用时"或始终"作为位置.

I'm trying to know if the user has selected "only when in use" or "always" for the location.

https://pub.dev/packages/location_permissions

我从包装中尝试了以下代码:

I tried this code from the package:

 ServiceStatus serviceStatus =
          await LocationPermissions().checkServiceStatus();
      print(serviceStatus);

但它会打印:

ServiceStatus.enabled

是否有可能(也许与另一个软件包一起)知道这一点?

Is there a possibility (perhaps with another package) to know this?

提前谢谢！

推荐答案

permission_handler 可以做到这一点.

enum PermissionGroup {
  ...

  /// Android: Fine and Coarse Location
  /// iOS: CoreLocation - Always
  locationAlways,

  /// Android: Fine and Coarse Location
  /// iOS: CoreLocation - WhenInUse
  locationWhenInUse
}

请求权限:

final ph = PermissionHandler();
final requested = await ph.requestPermissions([
  PermissionGroup.locationAlways, 
  PermissionGroup.locationWhenInUse
]);

final alwaysGranted = requested[PermissionGroup.locationAlways] == PermissionStatus.granted;
final whenInUseGranted = requested[PermissionGroup.locationWhenInUse] == PermissionStatus.granted;

将这些权限添加到<manifest>标签内的AndroidManifest.xml:

Add these permissions to AndroidManifest.xml inside <manifest> tag:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.test_project">

    <!-- add these -->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
...

然后将这些添加到Info.plist的<dict>标签:

And these to <dict> tag of Info.plist:

    <!-- Permission options for the `location` group -->
    <key>NSLocationWhenInUseUsageDescription</key>
    <string>Need location when in use</string>
    <key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
    <string>Always and when in use!</string>
    <key>NSLocationUsageDescription</key>
    <string>Older devices need location.</string>
    <key>NSLocationAlwaysUsageDescription</key>
    <string>Can I haz location always?</string>

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