有两种解决方案：
1、使用9-patch 图片，制作一个阴影部分的图片，然后横向拉伸即可
2、使用layer-list
-
在res/drawable下，新建background_with_shadow.xml文件，该文件代码如下：
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<?
xml
version
=
"1.0"
encoding
=
"utf-8"
?>
<
layer-list
xmlns:android
=
"<a href="
http://schemas.android.com/apk/res/android" >" target="_blank">http://schemas.android.com/apk/res/android" ></
a
>
<!-- bottom shadow -->
<
item
>
<
shape
android:shape
=
"rectangle"
>
<!-- from top to bottom -->
<
gradient
android:angle
=
"90"
android:centerColor
=
"#bbbbbb"
android:endColor
=
"#d5d5d5"
android:startColor
=
"#a9a09d"
/>
<
corners
android:radius
=
"5dp"
/>
</
shape
>
</
item
>
<!-- content -->
<
item
android:bottom
=
"2dp"
>
<
shape
android:shape
=
"rectangle"
>
<
solid
android:color
=
"#50c1e9"
/>
<
corners
android:radius
=
"5dp"
/>
</
shape
>
</
item
>
</
layer-list
>
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-
使用background_with_shadow.xml文件
假设有bottom_shadow.xml文件，内容如下：
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<?
xml
version
=
"1.0"
encoding
=
"utf-8"
?>
<
LinearLayout
xmlns:android
=
"<a href="
http://schemas.android.com/apk/res/android""
target
=
"_blank"
>http://schemas.android.com/apk/res/android"</
a
>
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#bfbfbf">
<
LinearLayout
android:layout_marginTop
=
"40dp"
android:layout_width
=
"match_parent"
android:layout_height
=
"40dp"
android:orientation
=
"vertical"
android:background
=
"@drawable/background_with_shadow"
>
</
LinearLayout
>
<
TextView
android:layout_marginTop
=
"20dp"
android:layout_marginLeft
=
"20dp"
android:layout_width
=
"match_parent"
android:layout_height
=
"wrap_content"
android:text
=
"短址赚"
/>
</
LinearLayout
>
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