如何获得阴影在Android线性布局？ [英] How to get shadow on android linear layout?

问题描述

可能重复：
  如何设置阴影在Android的视图？

在我的Andr​​oid应用我需要带圆角的布局和背景应该有一定的透明度。对于这个我用这个XML，它工作正常：

In my Android app I need a layout with round corners and the background should have some transparency. For this I'm using this xml, it works fine:

customshape.xml：

customshape.xml:

<shape android:shape="rectangle"> 
    <gradient android:startColor="#E2FFFFFF" android:endColor="#E2D0E3E5" android:angle="270"/> 
    <corners android:radius="10dp" /> 
</shape>

style.xml：

style.xml:

<style name="LinearLayoutRoundCorners">
    <item name="android:layout_width">fill_parent</item>
    <item name="android:layout_height">wrap_content</item>
    <item name="android:background">@drawable/customshape</item>
</style>

我还需要一个小影到布局的右侧和底部。我无法找到一个方法来做到这一点。我已经看到了，你把另一个布局的背后，使它看起来像一个影子黑客攻击，但不会为我工作作为我的布局具有透明性，这样就不会很好看。我怎样才能得到一个好看的影子在我的布局，而不使用图像作为布局的背景是什么？

I also need a small shadow to the right and bottom of the layout. I can not find a way to do this. I've seen a hack where you put another layout behind to make it look like a shadow but that will not work for me as my layout have transparency, so that will not look very good. How can I get a nice looking shadow on my layout without using an image as background of the layout?

推荐答案

据我知道有没有办法应用阴影到查看对象。我建议你​​看一看九补丁，我已经用他们做了一层阴影。

As far as I know there is no way to apply a shadow to a View object. I suggest you take a look at nine patches, I have used them to make a shadow.

<一个href="http://developer.android.com/guide/topics/graphics/2d-graphics.html#nine-patch">http://developer.android.com/guide/topics/graphics/2d-graphics.html#nine-patch

（另见这个答案<一个href="http://stackoverflow.com/questions/3693234/custom-imageview-with-drop-shadow/4405209#4405209">Custom ImageView的有阴影）

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