1/* 2* Copyright (c) 2023 Hunan OpenValley Digital Industry Development Co., Ltd. 3* Licensed under the Apache License, Version 2.0 (the "License"); 4* you may not use this file except in compliance with the License. 5* You may obtain a copy of the License at 6* 7* http://www.apache.org/licenses/LICENSE-2.0 8* 9* Unless required by applicable law or agreed to in writing, software 10* distributed under the License is distributed on an "AS IS" BASIS, 11* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12* See the License for the specific language governing permissions and 13* limitations under the License. 14*/ 15 16import { BaseDataSource } from '@ohos/common/src/main/ets/components/BaseDataSource'; 17 18export class HashSetDataSource extends BaseDataSource { 19 public dataArr: string[] = []; 20 21 public totalCount(): number { 22 return this.dataArr.length 23 } 24 25 public getData(index: number): string { 26 return this.dataArr[index]; 27 } 28 29 public addData(item: string): void { 30 this.dataArr.push(item); 31 this.notifyDataAdd(this.dataArr.length - 1); 32 this.notifyDataReload(); 33 } 34 35 public deleteData(item: string, index: number): void { 36 this.dataArr.splice(index, 1); 37 this.notifyDataDelete(index); 38 this.notifyDataReload(); 39 } 40}