Motion Path Animation

The motion path animation is used to animate a component along a custom path.

NOTE

The APIs of this module are supported since API version 7. Updates will be marked with a superscript to indicate their earliest API version.

Attributes

Name Type Default Value Description
motionPath {
path: string,
from?: number,
to?: number,
rotatable?: boolean
}
NOTE
In a path, start and end can be used to replace the start point and end point. Example:
'Mstart.x start.y L50 50 Lend.x end.y Z'
For more information, see Path Drawing.		 {
'',
0.0,
1.0,
false
}		 Motion path of the component.
- path: motion path of the translation animation. The value is an SVG path string.
- from: start point of the motion path.
Default value: 0.0
Value range: [0, 1]
A value less than 0 evaluates to the value 0. A value greater than 1 evaluates to the value 1.
- to: end point of the motion path.
Default value: 1.0
Value range: [0, 1]
A value less than 0 evaluates to the value 0. A value larger than 1 evaluates to the value 1.
- rotatable: whether to rotate along the path.

Example

// xxx.ets
@Entry
@Component
struct MotionPathExample {
  @State toggle: boolean = true

  build() {
    Column() {
      Button('click me').margin(50)
        // Execute the animation: Move from the start point to (300,200), then to (300,500), and finally to the end point.
        .motionPath({ path: 'Mstart.x start.y L300 200 L300 500 Lend.x end.y', from: 0.0, to: 1.0, rotatable: true })
        .onClick(() => {
          animateTo({ duration: 4000, curve: Curve.Linear }, () => {
            this.toggle =! this.toggle // Use this.toggle to change the position of the component.
          })
        })
    }.width('100%').height('100%').alignItems(this.toggle ? HorizontalAlign.Start : HorizontalAlign.Center)
  }
}

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