我可以在React Native中创建动态样式吗？

本文介绍了我可以在React Native中创建动态样式吗？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

假设我有一个包含这样的渲染的组件：

Say I have a component with a render like this:

<View style={jewelStyle}></View>

其中jewelStyle =

Where jewelStyle =

{ borderRadius: 10, backgroundColor: '#FFEFCC', width: 20, height: 20, },

如何使背景颜色动态和随机分配？我尝试过

How could I make the background colour dynamic and randomly assigned? I've tried

{ borderRadius: 10, backgroundColor: getRandomColor(), width: 20, height: 20, },

任何提示？

推荐答案

我通常会做以下行：

<View style={jewelStyle()} />

...

jewelStyle = function(options) { return { borderRadius: 10, background: randomColor(), } }

每次渲染视图时，将使用与其关联的随机颜色来实例化新的样式对象。当然，这意味着颜色将在每次组件被重新渲染时改变，这可能不是你想要的。您可以这样做：

Every time View is rendered, a new style object will be instantiated with a random color associated with it. Of course, this means that the colors will change every time the component is re-rendered, which is perhaps not what you want. Instead, you could do something like this:

var myColor = randomColor() <View style={jewelStyle(myColor)} />

...

jewelStyle = function(myColor) { return { borderRadius: 10, background: myColor, } }