如何更改颜色的Andr​​oid对话的背后 [英] How to Change the Color Behind Android Dialog

问题描述

我想改变暗淡的背景下，围绕着Android的对话框（而不是窗口的背景绘制）编程的颜色。我使用的是对话的主题活动。我不想有啥用呢，也不知道怎么回事了。

I would like to change the color of the dimmed background that surrounds an Android dialog (not the Window background drawable) programmatically. I am using a dialog themed activity. I do not want to dim it, nor blur it.

如果你想像一个对话框，三个按钮，我想有它做这样的事情：

If you imagine a dialog with three buttons, I would like to have it do something like this:

• 点击答：背景半透明红色
• 单击B：背景半透明黄色
• 单击C：背景，半透明的绿色

推荐答案

我不知道，你可以改变背景颜色。调光由 dimAmount 的对话窗口的布局的字段（以及<一个href="http://developer.android.com/reference/android/view/WindowManager.LayoutParams.html#FLAG_DIM_BEHIND"相对=nofollow> FLAG_DIM_BEHIND 标志）。 dimAmount 仅仅是0.0和1.0控制调光量（透明到完全不透明）之间的浮动。我认为这是现有的背景只是一个alpha混合;有没有控制，据我已经能够找到着色。

I'm not sure you can change the color of the background. The dimming is controlled by the dimAmount field of the layout for the dialog window (as well as the FLAG_DIM_BEHIND flag). dimAmount is just a float between 0.0 and 1.0 that controls the amount of dimming (transparent to totally opaque). I think it's just an alpha blend of the existing background; there's no control of coloring as far as I've been able to find.

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