HarmonyOS Grid多次渲染会固定布局，如历史搜索记录展示，搜索文字长度不固定

@Entry 
@Component 
struct ListExample { 
  private arr: string[] = ['测试1111', '测试', '测试0', '测试112222', '测试112222yeyeyeyy', '测试1', '测试112222yeyeyeyyjdjkd'] 
 
  build() { 
    Column() { 
      Row() { 
        Flex({ wrap: FlexWrap.Wrap }) { 
          ForEach(this.arr, (item: string) => { 
            Text(item) 
              .height(50) 
              .fontSize(16) 
              .textAlign(TextAlign.Center) 
              .borderRadius(10) 
              .backgroundColor(0xFFFFFF) 
              .width('30%') 
              .flexGrow(1) 
              .flexShrink(0) 
          }, 
            (item: string) => item) 
        } 
      } 
 
      .height('100%') 
      .width('100%') 
      .backgroundColor(Color.Pink) 
      .justifyContent(FlexAlign.SpaceEvenly) 
 
 
    } 
    .width('100%').height('100%') 
    .backgroundColor(0xDCDCDC).padding({ top: 5 }) 
  } 
}