WXXR/miniprogram/pages/physics/scene-physics-throw/index.wxml

<xr-demo-viewer
  title="投球小游戏Demo"
  intro="等待AR平面识别完成，然后在较远的地面上放置篮筐。按住右侧按钮准备投球，然后挥动手机并放开按钮将球投出。(该demo目前在安卓上可能表现不佳，受限于安卓的平面识别功能。)"
  code="{{xmlCode}}"
>
  <view class="overlay button" style="right: 50px; bottom: 300px;" 
  wx:if="{{arDetected}}"
  bindtouchstart="handleThrowStart" bindtouchend="handleThrowEnd">
  <text>按住\n投球</text>
  </view>
  <xr-basic
    disable-scroll
    id="main-frame"
    width="{{renderWidth}}"
    height="{{renderHeight}}"
    throwing="{{throwing}}"
    style="width:{{width}}px;height:{{height}}px;top:{{top}}px;left:{{left}}px;display:block;"
    bind:ar_detected="handleARDetected"
  />
</xr-demo-viewer>