如何渐变填充按钮的背景吗？ [英] How to gradient fill a button's background?

问题描述

我要创建一个彩色按钮与渐变填充（沿Y轴按钮的中间开始）。如果我设置按钮，我想要的颜色的背景属性，我失去的圆形的外观和按键的手感也渐变填充（它看起来像一个的TextView 与背景）。

I have to create a colored button with gradient fill(starting from the middle of the button along Y axis). If I set the background property of the button to the color I want, I lose the rounded look and feel of a button and also the gradient fill(It looks like a TextView with a background).

另外，我想，当用户去presses按钮这种颜色改变。我可以通过选择XMLS指定本（颜色状态列表的）？

Also, I want this color to change when the user depresses the button. Can i specify this via selector XMLs(Color State Lists)?

任何教程或链接，可以帮助我在这里是AP preciated。

Any tutorials or links that can help me here is appreciated.

感谢。

推荐答案

<一个href="http://stackoverflow.com/questions/2173936/how-to-set-background-color-of-a-view">http://stackoverflow.com/questions/2173936/how-to-set-background-color-of-a-view

您需要定义一个自定义的 StateListDrawable 的资源，从一个Android使用的默认按钮，在这里你改变了九片图像是梯度也许克隆。你也许可以定义这些梯度XML，这意味着它们将延伸得很好。

You will need to define a custom StateListDrawable resource, cloned perhaps from the one Android uses for buttons by default, where you change the nine-patch images to be gradients. You might be able to define those gradients in XML, which would mean they would stretch nicely.

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