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'; 17import { KeyValuePair } from '../../model/KeyValuePair'; 18 19export class HashMapDataSource extends BaseDataSource { 20 public dataArr: KeyValuePair[] = []; 21 22 public totalCount(): number { 23 return this.dataArr.length; 24 } 25 26 public getData(index: number): KeyValuePair { 27 return this.dataArr[index]; 28 } 29 30 public addData(item: KeyValuePair): void { 31 this.dataArr.push(item); 32 this.notifyDataAdd(this.dataArr.length - 1); 33 this.notifyDataReload(); 34 } 35 36 public deleteData(item: KeyValuePair, index: number): void { 37 this.notifyDataDelete(index); 38 this.dataArr.splice(index, 1); 39 this.notifyDataReload(); 40 } 41}