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lib/common/permission/permissionRequester.dart 2.42 KB
e811f164   吴启风   feat:权限申请页面增加隐私合规...
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  import 'package:flutter/cupertino.dart';
  import 'package:permission_handler/permission_handler.dart';
  import 'package:wow_english/common/permission/permissionRequestPage.dart';
  
  /// 带隐私合规功能的权限检查及请求入口
  /// 外部可通过此方法来进行权限的检查和请求,将自动跳转到`PermissionRequestPage`页面。
ba96a4bc   吴启风   feat:方法注释优化
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  /// 传入 `Permission` 以及对应的(中文)权限名称 `permissionName`
e811f164   吴启风   feat:权限申请页面增加隐私合规...
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  /// permissionDesc:设备权限使用说明(描述)
  /// isRequiredPermission:是否强制要求 如果为 `true`,则 "取消" 按钮将执行 "退出app" 的操作
ba96a4bc   吴启风   feat:方法注释优化
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  /// return 如果有权限则返回 `Future<true>`
e811f164   吴启风   feat:权限申请页面增加隐私合规...
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  Future<bool> requestPermission(
      BuildContext context,
      Permission permission,
      String permissionName,
      String permissionDesc,
      {bool isRequiredPermission = false}) async {
    return requestPermissions(context, [permission], [permissionName], permissionDesc,
        isRequiredPermission: isRequiredPermission);
  }
  
  
  Future<bool> requestPermissions(
      BuildContext context,
      List<Permission> permissions,
      List<String> permissionNames,
      String permissionDesc,
      {bool isRequiredPermission = false}) async {
  
    // List<PermissionStatus> statuses = await Future.wait(
    //   permissions.map((permission) => permission.status),
    // );
    // bool allGranted = statuses.every((status) => status.isGranted);
  
    bool allGranted = await isPermissionsGranted(permissions);
    if (allGranted) {
      return true;
    } else {
      return await Navigator.of(context).push(PageRouteBuilder(
          opaque: false,
          pageBuilder: ((context, animation, secondaryAnimation) {
            return PermissionRequestPage(permissions, permissionNames, permissionDesc,
                isRequiredPermission: isRequiredPermission);
          })));
    }
  }
  
  ///(实际请求前)判断权限数组是否都授予
  Future<bool> isPermissionsGranted(List<Permission> permissions) async {
    // 使用 every 直接检查权限状态
    return await Future.wait(permissions.map((permission) async {
      return await permission.status.isGranted;
    })).then((statuses) => statuses.every((status) => status));
  }
  
  ///请求权限
  Future<MapEntry<Permission, PermissionStatus>?> requestPermissionsInner(List<Permission> permissionList) async {
    Map<Permission, PermissionStatus> statusesMap = await permissionList.request();
    for (var entry in statusesMap.entries) {
      if (!entry.value.isGranted) {
        return entry;
      }
    }
    return null;
  }