HarmonyOS 当在子组件绑定PanGesture时，在子组件区域进行滑动只能触发子组件的PanGesture

import curves from '@ohos.curves';  
@Entry  
@Component  
struct GridItemExample {  
  @State numbers: number[] = []  
  @State dragItem: number = -1  
  @State isEditing : Boolean = false  
  @State scaleItem: number = -1  
  @State item: number = -1  
  private dragRefOffsetx: number = 0  
  private dragRefOffsety: number = 0  
  @State offsetX: number = 0  
  @State offsetY: number = 0  
  private FIX_VP_X: number = 108  
  private FIX_VP_Y: number = 120  
  private arr: number[] = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17,18,19,20]  
  private panOption: PanGestureOptions = new PanGestureOptions({ direction: PanDirection.Vertical })  
  aboutToAppear() {  
    for (let i = 1; i <= 30; i++) {  
      this.numbers.push(i)  
    }  
  }  
  itemMove(index: number, newIndex: number): void {  
    let tmp = this.numbers.splice(index, 1)  
    this.numbers.splice(newIndex, 0, tmp[0])  
  }  
  //向下滑  
  down(index: number): void {  
    this.offsetY -= this.FIX_VP_Y  
    this.dragRefOffsety += this.FIX_VP_Y  
    this.itemMove(index, index + 3)  
  }  
  //向下滑(右下角为空)  
  down2(index: number): void {  
    this.offsetY -= this.FIX_VP_Y  
    this.dragRefOffsety += this.FIX_VP_Y  
    this.itemMove(index, index + 3)  
  }  
  //向上滑  
  up(index: number): void {  
    this.offsetY += this.FIX_VP_Y  
    this.dragRefOffsety -= this.FIX_VP_Y  
    this.itemMove(index, index - 3)  
  }  
  //向左滑  
  left(index: number): void {  
    this.offsetX += this.FIX_VP_X  
    this.dragRefOffsetx -= this.FIX_VP_X  
    this.itemMove(index, index - 1)  
  }  
  //向右滑  
  right(index: number): void {  
    this.offsetX -= this.FIX_VP_X  
    this.dragRefOffsetx += this.FIX_VP_X  
    this.itemMove(index, index + 1)  
  }  
  //向右下滑  
  lowerRight(index: number): void {  
    this.offsetX -= this.FIX_VP_X  
    this.dragRefOffsetx += this.FIX_VP_X  
    this.offsetY -= this.FIX_VP_Y  
    this.dragRefOffsety += this.FIX_VP_Y  
    this.itemMove(index, index + 4)  
  }  
  //向右上滑  
  upperRight(index: number): void {  
    this.offsetX -= this.FIX_VP_X  
    this.dragRefOffsetx += this.FIX_VP_X  
    this.offsetY += this.FIX_VP_Y  
    this.dragRefOffsety -= this.FIX_VP_Y  
    this.itemMove(index, index - 2)  
  }  
  //向左下滑  
  lowerLeft(index: number): void {  
    this.offsetX += this.FIX_VP_X  
    this.dragRefOffsetx -= this.FIX_VP_X  
    this.offsetY -= this.FIX_VP_Y  
    this.dragRefOffsety += this.FIX_VP_Y  
    this.itemMove(index, index + 2)  
  }  
  //向左上滑  
  upperLeft(index: number): void {  
    this.offsetX += this.FIX_VP_X  
    this.dragRefOffsetx -= this.FIX_VP_X  
    this.offsetY += this.FIX_VP_Y  
    this.dragRefOffsety -= this.FIX_VP_Y  
    this.itemMove(index, index - 4)  
  }  
  build() {  
    List() {  
      ListItem(){  
        Button('isEdit').onClick((event: ClickEvent) => {  
          this.isEditing=!this.isEditing  
          console.log('wyTest',this.isEditing)  
        })  
          .width(100)  
          .height(100)  
          .backgroundColor('blue')  
      }  
      ListItem() {  
        Column() {  
          Grid() {  
            ForEach(this.numbers, (item: number) => {  
              GridItem() {  
                Text(item + '')  
                  .fontSize(16)  
                  .width('100%')  
                  .textAlign(TextAlign.Center)  
                  .height(100)  
                  .borderRadius(10)  
                  .backgroundColor(0xFFFFFF)  
                  .shadow(this.scaleItem == item ? { radius: 70, color: '#15000000', offsetX: 0, offsetY: 0 } :  
                    { radius: 0, color: '#15000000', offsetX: 0, offsetY: 0 })  
                  .animation({ curve: Curve.Sharp, duration: 300 })  
              }  
              .scale({ x: this.scaleItem == item ? 1.05 : 1, y: this.scaleItem == item ? 1.05 : 1 })  
              .zIndex(this.dragItem == item ? 1 : 0)  
              .translate(this.dragItem == item ? { x: this.offsetX, y: this.offsetY } : { x: 0, y: 0 })  
              .padding(10)  
              .parallelGesture(  
                PanGesture({ fingers: 1, direction: this.isEditing ? PanDirection.All:PanDirection.None, distance: 0 })  
                  .onActionStart(() => {  
                    console.log('wyTest onActionStart')  
                    if (this.isEditing) {  
                      this.dragItem = item  
                      this.dragRefOffsetx = 0  
                      this.dragRefOffsety = 0  
                    }  
                  })  
                  .onActionUpdate((event: GestureEvent) => {  
                    console.log('wyTest onActionUpdate')  
                    if (this.isEditing) {  
                      this.offsetY = event.offsetY - this.dragRefOffsety  
                      this.offsetX = event.offsetX - this.dragRefOffsetx  
                      console.log('X:' + this.offsetX.toString())  
                      animateTo({ curve: curves.interpolatingSpring(0, 1, 400, 38) }, () => {  
                        let index = this.numbers.indexOf(this.dragItem)  
                        if (this.offsetY >= this.FIX_VP_Y / 2 && (this.offsetX <= 44 && this.offsetX >= -44)  
                          && ![8, 9, 10].includes(index)) {  
                          //向下滑  
                          this.down(index)  
                        } else if (this.offsetY <= -this.FIX_VP_Y / 2 && (this.offsetX <= 44 && this.offsetX >= -44)  
                          && ![0, 1, 2].includes(index)) {  
                          //向上滑  
                          this.up(index)  
                        } else if (this.offsetX >= this.FIX_VP_X / 2 && (this.offsetY <= 50 && this.offsetY >= -50)  
                          && ![2, 5, 8, 10].includes(index)) {  
                          //向右滑  
                          this.right(index)  
                        } else if (this.offsetX <= -this.FIX_VP_X / 2 && (this.offsetY <= 50 && this.offsetY >= -50)  
                          && ![0, 3, 6, 9].includes(index)) {  
                          //向左滑  
                          this.left(index)  
                        } else if (this.offsetX >= this.FIX_VP_X / 2 && this.offsetY >= this.FIX_VP_Y / 2  
                          && ![2, 5, 7, 8, 9, 10].includes(index)) {  
                          //向右下滑  
                          this.lowerRight(index)  
                        } else if (this.offsetX >= this.FIX_VP_X / 2 && this.offsetY <= -this.FIX_VP_Y / 2  
                          && ![0, 1, 2, 5, 8].includes(index)) {  
                          //向右上滑  
                          this.upperRight(index)  
                        } else if (this.offsetX <= -this.FIX_VP_X / 2 && this.offsetY >= this.FIX_VP_Y / 2  
                          && ![0, 3, 6, 9, 10].includes(index)) {  
                          //向左下滑  
                          this.lowerLeft(index)  
                        } else if (this.offsetX <= -this.FIX_VP_X / 2 && this.offsetY <= -this.FIX_VP_Y / 2  
                          && ![0, 1, 2, 3, 6, 9].includes(index)) {  
                          //向左上滑  
                          this.upperLeft(index)  
                        } else if (this.offsetX >= this.FIX_VP_X / 2 && this.offsetY >= this.FIX_VP_Y / 2  
                          && [7].includes(index)) {  
                          //向右下滑(右下角为空)  
                          this.down2(index)  
                        }  
                      })  
                    }  
                  })  
                  .onActionEnd(() => {  
                    console.log('wyTest onActionEnd')  
                    if (this.isEditing) {  
                      animateTo({ curve: curves.interpolatingSpring(0, 1, 400, 38) }, () => {  
                        this.dragItem = -1  
                      })  
                      animateTo({  
                        curve: curves.interpolatingSpring(14, 1, 170, 17), delay: 150  
                      }, () => {  
                        this.scaleItem = -1  
                      })  
                    }  
                  })  
              )  
            }, (item: number) => item.toString())  
          }  
          .width('90%')  
          .editMode(true)  
          .scrollBar(BarState.Off)  
          .columnsTemplate("1fr 1fr 1fr")  
        }  
          .width('100%')  
          .height('100%').backgroundColor('#0D182431').padding({ top: 5 })  
      }  
    }  
  }  
}