checkPermission static method

Future<bool> checkPermission(List<Permission> permissionList)

检测是否有权限 permissionList 权限申请列表

Implementation

static Future<bool> checkPermission(List<Permission> permissionList) async {
  /// 一个新待申请权限列表
  List<Permission> newPermissionList = [];

  /// 遍历当前权限申请列表
  for (Permission permission in permissionList) {
    PermissionStatus status = await permission.status;

    /// 如果不是允许状态就添加到新的申请列表中
    if (!status.isGranted) {
      newPermissionList.add(permission);
    }
  }

  /// 如果需要重新申请的列表不是空的
  if (newPermissionList.isNotEmpty) {
    PermissionStatus permissionStatus =
        await requestPermission(newPermissionList);
    bool result = false;

    switch (permissionStatus) {
      /// 拒绝状态
      case PermissionStatus.denied:
        break;

      /// 永久拒绝  活动限制
      case PermissionStatus.restricted:
      case PermissionStatus.limited:
      case PermissionStatus.permanentlyDenied:
        openAppSettings();
        break;

      /// 允许状态
      case PermissionStatus.provisional:
      case PermissionStatus.granted:
        result = true;
        break;
    }
    return result;
  } else {
    return true;
  }
}