public static List <FileObject> GetFilesListFromJson() { try { if (!string.IsNullOrWhiteSpace(FileObjectsSavedList)) { return(JsonConvert.DeserializeObject <List <FileObject> >(FileObjectsSavedList)); } } catch (Exception ex) { UserDialogsService.DisplayException(ex); } return(new List <FileObject>()); }
public static void RemoveFileFromList(FileObject obj) { try { List <FileObject> list = GetFilesListFromJson(); if (list != null) { FileObject removeObj = list.FirstOrDefault(x => x.FileGuid == obj.FileGuid); if (removeObj != null) { list.Remove(removeObj); SaveList(list); } } } catch (Exception ex) { UserDialogsService.DisplayException(ex); } }
public static void AddFileToJsonList(FileObject obj) { try { List <FileObject> list = GetFilesListFromJson(); if (list == null) { list = new List <FileObject>(); } if (list.FirstOrDefault(x => x.FilePath == obj.FileGuid) == null) { list.Add(obj); } SaveList(list); } catch (Exception ex) { UserDialogsService.DisplayException(ex); } }
public static async Task <bool> GetStoragePermissionsAsync() { try { var status = await CrossPermissions.Current.CheckPermissionStatusAsync(Permission.Storage); if (status != PermissionStatus.Granted) { if (await CrossPermissions.Current.ShouldShowRequestPermissionRationaleAsync(Permission.Storage)) { UserDialogs.Instance.Alert("Need External Storage Permissions.", "Permissions", "OK"); } var results = await CrossPermissions.Current.RequestPermissionsAsync(Permission.Storage); if (results.ContainsKey(Permission.Storage)) { status = results[Permission.Storage]; } } if (status == PermissionStatus.Granted) { return(true); } else if (status != PermissionStatus.Unknown) { UserDialogs.Instance.Alert("Can not continue, try again.", "Permission Unknown", "OK"); } } catch (Exception ex) { UserDialogsService.DisplayException(ex); } return(false); }