mini-ar-demo/miniprogram/components/ar-tracker/ar-tracker.js

// components/ar-tracker/ar-tracker.ts
Component({

  /**
   * 组件的属性列表
   */
  properties: {

  },

  /**
   * 组件的初始数据
   */
  data: {

  },

  /**
   * 组件的方法列表
   */
  methods: {
    handleReady({
      detail
    }) {
      const xrScene = this.scene = detail.value;
      this.mat = new(wx.getXrFrameSystem().Matrix4)();
      console.log('xr-scene', xrScene)
      this.triggerEvent('ready')
    },
    handleARReady() {
      console.log('handleARReady')
    },

    handleAssetsProgress: function ({
      detail
    }) {
      const progress =
        Math.floor(detail.value.progress * 100)
      console.log('progress', progress)
      this.triggerEvent('progress', progress)
    },

    handleAssetsLoaded({
      detail
    }) {
      console.log('assets loaded', detail.value);
      this.triggerEvent('loaded')

    },
    handleItem1Loaded({
      detail
    }) {
      const el = detail.value.target;
      console.warn('item1 load')
      const gltf = el.getComponent("gltf");
      const video = this.scene.assets.getAsset("video-texture", "item1-v");
      const newMat = this.scene.assets.getAsset("material", "item1-m");
      this.video1 = video
      this.video1.onEnd = () => {}
      const animator = el.getComponent("animator");
      this.animator1 = animator
      console.log('animator', this.animator)
      for (const mesh of gltf.getPrimitivesByNodeName("video")) {
        mesh.material = newMat
      }

    },
    handleItem2Loaded() {

    },
    handleItem3Loaded() {

    },
    play(type) {
      if (type === 1) {
        this.scene.getNodeById('setitem1').visible = true;
        if (this.video1) {
          this.video1.play()
        }
        if (this.animator1) {
          this.animator1.play('Animation')
        }
      }
    },

    handleARTrackerState({
      detail
    }) {
      // 事件的值即为`ARTracker`实例
      const tracker = detail.value;
      // 获取当前状态和错误信息
      const {
        state,
        errorMessage
      } = tracker;
      if (state == 2) {
        wx.showToast({
          title: '1',
        })
        this.play(1)
      }
    },
    handleARTrackerState1({
      detail
    }) {
      // 事件的值即为`ARTracker`实例
      const tracker = detail.value;
      // 获取当前状态和错误信息
      const {
        state,
        errorMessage
      } = tracker;
      if (state == 2) {

      }
    },
    handleARTrackerState2({
      detail
    }) {
      // 事件的值即为`ARTracker`实例
      const tracker = detail.value;
      // 获取当前状态和错误信息
      const {
        state,
        errorMessage
      } = tracker;
      if (state == 2) {}
    }
  }
})