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1/*
2 * Copyright (c) 2023 Huawei Device 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@Component
16export struct FrameTimelineBeforeOptimization {
17  // 创建长度500的空数组，使用每个元素的索引作为元素的值，生成包含数字0-499的数组
18  @State children: number[] = Array.from<undefined, number>(Array(500).fill(undefined), (item: undefined, index) => index);
19  build() {
20    Scroll() {
21      Grid() {
22        ForEach(this.children, (item: number) => {
23          GridItem() {
24            Stack() {
25              Stack() {
26                Stack() {
27                  Text(item.toString())
28                    .fontSize(32)
29                }
30              }
31            }
32          }
33        }, (item: number) => item.toString())
34      }
35      .columnsTemplate('1fr 1fr 1fr 1fr')
36      .columnsGap(0)
37      .rowsGap(0)
38      .size({ width: "100%", height: "100%" })
39    }
40  }
41}