ImagePreview 组件异步获取数据报错

[codedart2018]

Description

默认组件images是一个空数组。在数据加载的时候后端是没有图片数据返回回来的时候给了一个空数组，组件直接报错images.forEach is not a funtion. 或有时报　Cannot read property 'loaded'　 希望处理一下空数组的情况。后端获取到数据后再渲染进行加载图片的预处理操作。

code:

      <ImagePreview
        visible={preview.visible}
        images={preview.list || []}
        onClose={hide}
        activeIndex={preview.childIndex}
      />

• zarm version: 2.8.0
• react/react-native version: 17.0.2
• system version
• browser version

You can get this information from package.json and your device.

[codedart2018]

ImagePreview.js:216 Uncaught TypeError: Cannot read property 'loaded' of undefined
    at ImagePreview.render (ImagePreview.js:216)
    at finishClassComponent (react-dom.development.js:17485)
    at updateClassComponent (react-dom.development.js:17435)
    at beginWork (react-dom.development.js:19073)
    at HTMLUnknownElement.callCallback (react-dom.development.js:3945)
    at Object.invokeGuardedCallbackDev (react-dom.development.js:3994)
    at invokeGuardedCallback (react-dom.development.js:4056)
    at beginWork$1 (react-dom.development.js:23964)
    at performUnitOfWork (react-dom.development.js:22776)
    at workLoopSync (react-dom.development.js:22707)
    at renderRootSync (react-dom.development.js:22670)
    at performSyncWorkOnRoot (react-dom.development.js:22293)
    at react-dom.development.js:11327
    at unstable_runWithPriority (scheduler.development.js:468)
    at runWithPriority$1 (react-dom.development.js:11276)
    at flushSyncCallbackQueueImpl (react-dom.development.js:11322)
    at flushSyncCallbackQueue (react-dom.development.js:11309)
    at scheduleUpdateOnFiber (react-dom.development.js:21893)
    at dispatchAction (react-dom.development.js:16139)
    at checkForUpdates (use-subscription.development.js:85)
    at index.esm.js:688
    at Set.forEach (<anonymous>)
    at LoadableSubscription._update (index.esm.js:687)
    at index.esm.js:670

[JeromeLin]

的确有问题，感谢反馈，我们会尽快修复。