android sdk中的嵌套形状

Question

嗨,我想绘制一个有三个矩形形状的形状:1.纯色2.渐变3.白线我该怎么做？当我尝试这个时,它不起作用.布局具有父颜色.

<shape 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:height="60px"
    >
    <shape 
        android:shape="rectangle" 
        android:height="30px"
        >
        <solid 
            android:color="#ff297baf" 
            />
    </shape>
    <shape 
        android:shape="rectangle"
        android:height="30px"
        >
         <gradient
  android:type="linear"
  android:startColor="#ff297baf"
  android:endColor="#ff16c0e3"
  android:angle="270"/> 
    </shape>
    <shape
        android:shape="rectangle"
        android:height="3px"
        >
        <solid 
            android:color="#FFFFFFFF"
            />
    </shape>
</shape>

我试图用3种颜色制作渐变.从纯色开始#ff297baf,以60%开始渐变#ff297baf,#ff16c0e3然后在末尾添加一条渐变线.

Answer 1

如果您打算使用多个形状,您应该尝试使用LayerListDrawable.这样的东西对我有用,但仅适用于60px的示例高度.您可能需要对其进行修改以完全满足您的需求,但这应该为您提供一个良好的开端:

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
    <shape android:shape="rectangle">
        <gradient
            android:angle="270"
            android:endColor="#ff16c0e3"
            android:startColor="#ff297baf"
            android:type="linear" />
    </shape>
</item>
<item android:top="57px">
    <shape android:shape="rectangle">
        <solid android:color="#FFFFFFFF" />
        <size android:height="3px" />
    </shape>
</item>