如何渲染阴影？ [英] How do I render a shadow?

问题描述

如何在视图上渲染阴影？我尝试过shadowColor，shadowOffset，shadowOpacity和shadowRadius的许多组合，它们似乎什么都不做。我确信样式已正确应用，因为我设置了其他属性。

How do I render a shadow on a View? I've tried many combinations of shadowColor, shadowOffset, shadowOpacity, and shadowRadius, which seem to do nothing. I am sure the style is applied correctly, since other attributes I've set work.

推荐答案

这似乎是一个错误本机反应 shadowOpacity 设置为键入 CGFloat 而不是 float 根据 CALayer doc 。在修复之前使用iPhone 5模拟器。 （ CGFloat 在旧设备中浮动。）

It appears to be a bug in React native that shadowOpacity is set to type CGFloat instead of float according to CALayer doc. use iPhone 5 simulator before it's fixed. (CGFloat is float in older devices. )

跟踪此问题的React Native问题是：

The React Native issue which is tracking this is:

https://github.com/facebook/react-native/issues/449

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