React Native - 使用动态名称的图像需求模块 [英] React Native - Image Require Module using Dynamic Names

问题描述

我目前正在使用React Native构建测试应用。到目前为止，Image模块工作正常。

I'm currently building a test app using React Native. The Image module, thus far has been working fine.

例如，如果我有一个名为 avatar 的图像，以下代码段工作正常。

For example, if I had an image named avatar, the below code snippet works fine.

<Image source={require('image!avatar')} />

但是如果我将其更改为动态字符串，我会得到

But but if I change it to a dynamic string, I get

<Image source={require('image!' + 'avatar')} />

我收到错误：

Requiring unknown module "image!avatar". If you are sure the module is there, try restarting the packager.

显然这是一个人为的例子，但动态图像名称很重要。 React Native不支持动态图像名称吗？

Obviously this is a contrived example, but dynamic image names are important. Does React Native not support dynamic image names?

推荐答案

这在静态资源：

唯一允许引用捆绑中图像的方法是在源中逐字写入require（'image！of the-asset'）。

The only allowed way to refer to an image in the bundle is to literally write require('image!name-of-the-asset') in the source.

// GOOD
<Image source={require('image!my-icon')} />

// BAD
var icon = this.props.active ? 'my-icon-active' : 'my-icon-inactive';
<Image source={require('image!' + icon)} />

// GOOD
var icon = this.props.active ? require('image!my-icon-active') : require('image!my-icon-inactive');
<Image source={icon} />

然而，您还需要记住将图像添加到Xcode中的应用程序中的xcassets包中，你的评论似乎已经完成了。

However you also need to remember to add your images to an xcassets bundle in your app in Xcode, though it seems from your comment you've done that already.

http://facebook.github.io/react-native/docs/image.html#adding-static-资源到你的app-using-images-xcassets

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