#鸿蒙通关秘籍#如何在Text组件上实现旋转手势控制旋转动作？

可以通过RotationGesture检测旋转手势，调整组件的旋转角度。具体代码实现如下：

@Entry
@Component
struct Index {
  @State angle: number = 0;
  @State rotateValue: number = 0;

  build() {
    Column() {
      Text('RotationGesture angle:' + this.angle).fontSize(28)
        .rotate({ angle: this.angle })
        .gesture(
          RotationGesture()
           .onActionStart((event: GestureEvent|undefined) => {
              console.info('RotationGesture is onActionStart');
            })
            .onActionUpdate((event: GestureEvent|undefined) => {
              if(event){
                this.angle = this.rotateValue + event.angle;
              }
              console.info('RotationGesture is onActionEnd');
            })
            .onActionEnd(() => {
              this.rotateValue = this.angle;
              console.info('RotationGesture is onActionEnd');
            })
            .onActionCancel(() => {
              console.info('RotationGesture is onActionCancel');
            })
        )
        .height(200)
        .width(300)
        .padding(20)
        .border({ width: 3 })
        .margin(100)
    }
  }
}