#权限
  permission_handler: ^3.0.0

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.CAMERA"/>
<!-- 这个权限用于进行网络定位 -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<!-- 这个权限用于访问GPS定位 -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

import ‘package:permission_handler/permission_handler.dart‘;
requestPermiss() async {
    //请求权限
    Map<PermissionGroup, PermissionStatus> permissions =
    await PermissionHandler()
        .requestPermissions([PermissionGroup.location,PermissionGroup.camera]);
    //校验权限
    if(permissions[PermissionGroup.camera] != PermissionStatus.granted){
      print("无照相权限");
    }
    if(permissions[PermissionGroup.location] != PermissionStatus.granted){
      print("无定位权限");
    }
  }

PermissionHandler().openAppSettings();