'错误：未知命名模块'，从动态路径加载react-native映像 [英] 'Error: Unknown named module', loading react-native image from a dynamic path

问题描述

当我在React-native中使用Image组件时，当我将图像的路径/源声明为内联字符串时，它可以正常工作：

When i use the Image component in React-native, it works fine when I declare my image's path/source as an inline string：

 <Image
    style={styles.img}
    source={require('mypic.png')}
 />

但是当我将路径定义为这样的变量时：

But when I define the path as a variable like this:

 var img = 'mypic.png';
 <Image
    style={styles.img}
    source={require(img)}
 />

...它不起作用。错误消息是错误：未知的命名模块'mypic.png'

...it doesn't work. The error msg is "Error: unknown named module 'mypic.png'"

我有很多图像，我需要动态地要求它们。编写手动导入语句有太多要求逐个使用它们。

I have many images, and I need to require them dynamically. There are too many to write manual import statements to require them one-by-one.

即使使用像这样的简单切换，效率也会低得多：

Even with a simple toggle like this one, it's far less efficient:

var icon = this.props.active ? require('./my-icon-active.png') : require('./my-icon-inactive.png');

人们通常如何解决动态加载变量图像？

How do people usually solve for dynamic loading of variable images?

推荐答案

你不能做动态静态图像，所以你可以使用uri或做静态的东西，比如var测试=需要（ '图像'）。看看这个问题： https://github.com/facebook/react-native/ issue / 2481

You cannot do dynamic static images, so you can either use uri or do static things like var test=require('image'). Have a look at this issue: https://github.com/facebook/react-native/issues/2481

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