如何在“材质组件"的“材质按钮"中设置渐变背景? [英] How to set a gradient background in a Material Button from Material Components?

问题描述

我一直在尝试从Android的Material Components中的Material Button中设置渐变背景，但是它不起作用. 那么，如何在材质"按钮中设置渐变背景?

I've been trying to set a gradient background in a Material Button from Material Components for Android, but it's not working. So, how to set a gradient background in a Material Button?

推荐答案

来自

From the documentation for MaterialButton:

请勿使用android:background属性. MaterialButton管理其自己的背景可绘制对象，并且设置新的背景意味着MaterialButton不再能够保证其引入的新属性将正常运行.如果更改了默认背景，则MaterialButton无法保证行为明确.

Do not use the android:background attribute. MaterialButton manages its own background drawable, and setting a new background means MaterialButton can no longer guarantee that the new attributes it introduces will function properly. If the default background is changed, MaterialButton cannot guarantee well-defined behavior.

唯一支持的修改按钮背景的方法是将颜色值设置为app:backgroundTint属性.不幸的是，这里也不支持渐变.您只能使用简单的颜色值或ColorStateList.

The only supported way to modify the background of the button is to set a color value to the app:backgroundTint attribute. Unfortunately, gradients are not supported here either; you can only use a simple color value or a ColorStateList.

因此，不支持通过MaterialButton使用渐变背景.

So, there is no supported way to use a gradient background with MaterialButton.

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