HarmonyOS 关于lottie加载问题

代码如下：

import lottie, { AnimationItem } from '@ohos/lottie'
import StringUtils from 'lrs_commonlib/src/main/ets/utils/StringUtils'
import { JSON } from '@kit.ArkTS'
import { common } from '@kit.AbilityKit'

@Component
@Preview
export struct AnimatorLottieBase {
  @State animateName: string = ""
  //以下网络或者本地路径二选一
  //来自于网络
  @State uri: string = ""
  //来自于本地
  @State imagePath: string = ""
  @State path: string = ""
  // 动画填充模式 支持填充模式：Fill, Top, Cover, Bottom, Contain  默认模式是：Contain
  @State contentMode: string = "Contain"
  private mainRenderingSettings: RenderingContextSettings = new RenderingContextSettings(true)
  private mainCanvasRenderingContext: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.mainRenderingSettings)
  private animationItem?: AnimationItem

  aboutToAppear(): void {
    this.loadLottieAnimation()
  }
  aboutToDisappear(): void {
  }

  //播放Lottie动画
  loadLottieAnimation() {
    console.log("animationItem.addEventListener loadLottieAnimation", getContext().filesDir)
    if (StringUtils.isNotNilOrWhitespace(this.path)) {
      console.log("animationItem.addEventListener loadLottieAnimation 1", this.path)
      this.animationItem = lottie.loadAnimation({
        container: this.mainCanvasRenderingContext, // 渲染上下文
        renderer: 'canvas', // canvas 渲染模式
        loop: false, // 是否循环播放,默认true
        autoplay: true, // 是否自动播放，默认true
        imagePath: this.imagePath, // 加载读取指定路径下的图片资源
        path: this.path, // json路径
        contentMode: this.contentMode, // 填充的模式
        frameRate: 30, //设置animator的刷帧率为30
      })
    } else {
      console.log("animationItem.addEventListener loadLottieAnimation 2", this.uri)
      this.animationItem = lottie.loadAnimation({
        uri: this.uri, // uri网络资源
        container: this.mainCanvasRenderingContext, // 渲染上下文
        renderer: 'canvas', // canvas 渲染模式
        loop: false, // 是否循环播放,默认true
        autoplay: false, // 是否自动播放，默认true
        name: this.animateName, // 动画名
        contentMode: this.contentMode, // 填充的模式
        frameRate: 30, //设置animator的刷帧率为30
        isNetwork: false,
      })
    }
    setTimeout(() => {
      this.animationItem?.play() //当前指定animationItem动画播放
    }, 1000)
    this.animationItem.addEventListener("enterFrame", (data: object) => {
      console.log("animationItem.addEventListener enterFrame", JSON.stringify(data))
    })
    this.animationItem.addEventListener("loopComplete", (data: object) => {
      console.log("animationItem.addEventListener loopComplete", JSON.stringify(data))
    })
    this.animationItem.addEventListener("complete", (data: object) => {
      console.log("animationItem.addEventListener complete", JSON.stringify(data))
    })
    this.animationItem.addEventListener("segmentStart", (data: object) => {
      console.log("animationItem.addEventListener segmentStart", JSON.stringify(data))
    })
    this.animationItem.addEventListener("destroy", () => {
      console.log("animationItem.addEventListener destroy")
    })
    this.animationItem.addEventListener("config_ready", (data: object) => {
      console.log("animationItem.addEventListener config_ready", JSON.stringify(data))
    })
    this.animationItem.addEventListener("data_ready", (data: object) => {
      console.log("animationItem.addEventListener data_ready", JSON.stringify(data))
    })
    this.animationItem.addEventListener("DOMLoaded", (data: object) => {
      console.log("animationItem.addEventListener DOMLoaded", JSON.stringify(data))
    })
    this.animationItem.addEventListener("error", (data: object) => {
      console.log("animationItem.addEventListener error", JSON.stringify(data))
    })
    this.animationItem.addEventListener("data_failed", (data: object) => {
      console.log("animationItem.addEventListener data_failed",  data)
    })
    this.animationItem.addEventListener("loaded_images", (data: object) => {
      console.log("animationItem.addEventListener loaded_images", JSON.stringify(data))
    })
  }

  build() {
    Canvas(this.mainCanvasRenderingContext)
      .width("100%")
      .height("100%")
      .backgroundColor(Color.Transparent)
      .onAppear(() => {
        console.log("开始展示")
        // this.loadLottieAnimation()
      })
      .onReady(() => {
        //抗锯齿的设置
        this.mainCanvasRenderingContext.imageSmoothingEnabled = true;
        this.mainCanvasRenderingContext.imageSmoothingQuality = 'medium'
       })
      .onDisAppear(() => {
        console.log("结束展示")
        this.animationItem?.destroy()
      })
  }
}
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
63.
64.
65.
66.
67.
68.
69.
70.
71.
72.
73.
74.
75.
76.
77.
78.
79.
80.
81.
82.
83.
84.
85.
86.
87.
88.
89.
90.
91.
92.
93.
94.
95.
96.
97.
98.
99.
100.
101.
102.
103.
104.
105.
106.
107.
108.
109.
110.
111.
112.
113.
114.

1，放在本地的资源如何播放

2，上面提供的那种再在里面包装一层，把lottie单独封装成一个组件就播放不了了，是为什么？