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shape的几种写法

shape的几种写法

作者: Maybe_G | 来源:发表于2018-07-11 13:58 被阅读0次

摘抄自以下博客

https://www.cnblogs.com/popfisher/p/6238119.html

shape标签能定义多少种类型的Drawable?

shape 可以定义四种类型的几何图形,由 android:shape 属性指定

line --> 线

rectangle --> 矩形(圆角矩形)

oval --> 椭圆,圆

ring --> 圆环

矩形(边框+填充)

image.png

矩形实线边框内部无填充:rect_solid_border.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 实线边框 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <stroke
        android:width="2dp"
        android:color="#ffff0000" />

</shape>

矩形虚线边框内部无填充:rect_dashed_border.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 虚线边框 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <stroke
        android:width="2dp"
        android:color="#ffff0000"
        android:dashGap="5dp"
        android:dashWidth="10dp" />

</shape>

矩形实线边框-内部填充:rect_solid_border_and_fill.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 实线边框+内部填充 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <stroke
        android:width="2dp"
        android:color="#ffff0000" />

    <solid android:color="#ff00ffff" />

</shape>

矩形虚线边框-内部填充:rect_dashed_border_and_fill.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 虚线边框+内部填充 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <stroke
        android:width="2dp"
        android:color="#ffff0000"
        android:dashGap="5dp"
        android:dashWidth="10dp" />

    <solid android:color="#ff00ffff" />
</shape>

圆角矩形

image.png

圆角矩形-只有边框:rect_rounded_border.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 矩形边框圆角 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <size android:height="100dp"
        android:width="100dp"/>

    <stroke
        android:width="2dp"
        android:color="#ffff0000" />

    <corners android:bottomLeftRadius="2dp"
        android:bottomRightRadius="2dp"
        android:topLeftRadius="2dp"
        android:topRightRadius="2dp" />

</shape>

圆角矩形-只有内部填充:rect_rounded_fill.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 圆角矩形 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <size android:height="100dp"
        android:width="100dp"/>

    <solid android:color="#8000ff00" />

    <corners android:bottomLeftRadius="2dp"
        android:bottomRightRadius="2dp"
        android:topLeftRadius="2dp"
        android:topRightRadius="2dp" />

</shape>

圆角矩形-有边框有填充:rect_rounded_border_and_fill.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 矩形边框+填充 圆角 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <size android:height="100dp"
        android:width="100dp"/>

    <stroke
        android:width="2dp"
        android:color="#ffff0000" />

    <solid android:color="#8000ff00" />

    <corners android:bottomLeftRadius="2dp"
        android:bottomRightRadius="2dp"
        android:topLeftRadius="2dp"
        android:topRightRadius="2dp" />

</shape>

圆角矩形-左边圆角为一个半圆弧:rect_rounded_left_arc.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 矩形圆角+左右两边为一个圆弧 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <size
        android:width="50dp"
        android:height="10dp" />

    <solid android:color="#8000ff00" />

    <!-- 圆角半径是高度的一般就是一个圆弧了 -->
    <corners
        android:bottomLeftRadius="20dp"
        android:topLeftRadius="20dp" />

</shape>

圆角矩形-左右两边都是半圆弧:rect_rounded_left_right_arc.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 矩形圆角+左右两边为一个圆弧 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <size
        android:width="50dp"
        android:height="10dp" />

    <solid android:color="#8000ff00" />

    <!-- 圆角半径是高度的一般就是一个圆弧了 -->
    <corners android:radius="20dp" />

</shape>

圆角矩形-左右两边都是半圆弧-带边框:rect_rounded_left_right_arc_border.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 矩形圆角+左右两边为一个圆弧 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <size
        android:width="50dp"
        android:height="10dp" />

    <stroke android:color="#ffff0000"
        android:width="2dp"/>

    <solid android:color="#8000ff00" />

    <!-- 圆角半径是高度的一般就是一个圆弧了 -->
    <corners android:radius="20dp" />

</shape>

圆角矩形-圆:rect_rounded_arc.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 矩形圆角+圆出一个圆弧 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <size android:height="10dp"
        android:width="10dp"/>

    <solid android:color="#8000ff00" />

    <corners android:radius="20dp" />

</shape>

圆角矩形-上下两边半圆弧:rect_rounded_top_bottom_arc.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 矩形圆角+左右两边为一个圆弧 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <size
        android:width="10dp"
        android:height="60dp" />

    <solid android:color="#8000ff00" />

    <!-- 圆角半径是高度的一般就是一个圆弧了 -->
    <corners android:radius="10dp" />

</shape>

渐变效果(以矩形为例)

image.png

垂直线性渐变:rect_gradient_linear_vertical.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 矩形内部填充-线性垂直渐变 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <size
        android:width="@dimen/shape_size"
        android:height="@dimen/shape_size" />

    <stroke
        android:width="1px"
        android:color="#ffff00ff" />

    <!-- 调整angle实现水平渐变,垂直渐变或者对角渐变 -->
    <gradient
        android:angle="-45"
        android:centerX="0.5"
        android:centerY="0.4"
        android:centerColor="#8000ff00"
        android:endColor="#1000ff00"
        android:startColor="#ff00ff00"
        android:type="linear" />
</shape>

水平线性渐变:rect_gradient_linear_horizon.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 矩形内部填充-线性水平渐变 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <size
        android:width="@dimen/shape_size"
        android:height="@dimen/shape_size" />

    <stroke
        android:width="1px"
        android:color="#ffff00ff" />

    <!-- 调整angle实现水平渐变,垂直渐变或者对角渐变 -->
    <gradient
        android:angle="0"
        android:centerX="0.5"
        android:centerY="0.5"
        android:centerColor="#8000ff00"
        android:endColor="#ff00ff00"
        android:startColor="#1000ff00"
        android:type="linear" />
</shape>

对角线线性渐变:rect_gradient_linear_diagonal.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 矩形内部填充-线性对角线渐变 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <size
        android:width="@dimen/shape_size"
        android:height="@dimen/shape_size" />

    <stroke
        android:width="1px"
        android:color="#ffff00ff" />

    <!-- 调整angle实现水平渐变,垂直渐变或者对角渐变 -->
    <gradient
        android:angle="45"
        android:centerX="0.5"
        android:centerY="0.5"
        android:centerColor="#8000ff00"
        android:endColor="#1000ff00"
        android:startColor="#ff00ff00"
        android:type="linear" />
</shape>

径向渐变:rect_gradient_radial.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 矩形内部填充-径向渐变,一般不用在rect上,用到圆或者椭圆上 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">

    <size
        android:width="@dimen/shape_size"
        android:height="@dimen/shape_size" />

    <stroke
        android:width="1px"
        android:color="#ffff00ff" />

    <!-- 径向渐变angle无效 -->
    <gradient
        android:angle="0"
        android:centerX="0.5"
        android:centerY="0.5"
        android:startColor="#0000ff00"
        android:endColor="#ff00ff00"
        android:gradientRadius="40dp"
        android:type="radial" />
</shape>

扫描渐变:rect_gradient_sweep.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 矩形内部填充-扫描渐变 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    android:useLevel="true">
    <!--如果布局中没有设置View的大小,会size设置的大小为默认值-->
    <size
        android:width="20dp"
        android:height="20dp" />

    <stroke
        android:width="1px"
        android:color="#ffff00ff" />

    <!--调整angle不能实现角度变化
        centerX,centerY是中心点的位置,这里用的是百分比值(0-1)
        在rect中gradientRadius无效-->
    <gradient
        android:angle="0"
        android:centerX="0.5"
        android:centerY="0.5"
        android:startColor="#ff00ff00"
        android:gradientRadius="20dp"
        android:type="sweep" />
</shape>

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