文档章节

Shape Drawable Xml的background

SuShine
 SuShine
发布于 2015/06/24 13:55
字数 1151
阅读 8
收藏 0

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


    <stroke
        android:width="0.5dip"
        android:color="#ff505050" />


    <corners android:radius="2dip" >
    </corners>


	<gradient android:startColor="#ff404040"
	    android:centerColor="#ff383838"
	    android:endColor="#ff404040"
	    />
</shape>




This is a generic shape defined in XML.

file location:
res/drawable/filename.xml
The filename is used as the resource ID.
compiled resource datatype:
Resource pointer to a  GradientDrawable.
resource reference:
In Java:  R.drawable.filename
In XML:  @[package:]drawable/filename
syntax:
<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape=["rectangle" | "oval" | "line" | "ring"] >
    <corners
        android:radius="integer"
        android:topLeftRadius="integer"
        android:topRightRadius="integer"
        android:bottomLeftRadius="integer"
        android:bottomRightRadius="integer" />
    <gradient
        android:angle="integer"
        android:centerX="integer"
        android:centerY="integer"
        android:centerColor="integer"
        android:endColor="color"
        android:gradientRadius="integer"
        android:startColor="color"
        android:type=["linear" | "radial" | "sweep"]
        android:useLevel=["true" | "false"] />
    <padding
        android:left="integer"
        android:top="integer"
        android:right="integer"
        android:bottom="integer" />
    <size
        android:width="integer"
        android:height="integer" />
    <solid
        android:color="color" />
    <stroke
        android:width="integer"
        android:color="color"
        android:dashWidth="integer"
        android:dashGap="integer" />
</shape>
elements:
<shape>
The shape drawable. This must be the root element.

attributes:

xmlns:android
StringRequired. Defines the XML namespace, which must be "http://schemas.android.com/apk/res/android".
android:shape
Keyword. Defines the type of shape. Valid values are:
Value Desciption
"rectangle" A rectangle that fills the containing View. This is the default shape.
"oval" An oval shape that fits the dimensions of the containing View.
"line" A horizontal line that spans the width of the containing View. This shape requires the <stroke> element to define the width of the line.
"ring" A ring shape.

The following attributes are used only when android:shape="ring":

android:innerRadius
Dimension. The radius for the inner part of the ring (the hole in the middle), as a dimension value or  dimension resource.
android:innerRadiusRatio
Float. The radius for the inner part of the ring, expressed as a ratio of the ring's width. For instance, if  android:innerRadiusRatio="5", then the inner radius equals the ring's width divided by 5. This value is overridden by  android:innerRadius. Default value is 9.
android:thickness
Dimension. The thickness of the ring, as a dimension value or  dimension resource.
android:thicknessRatio
Float. The thickness of the ring, expressed as a ratio of the ring's width. For instance, if android:thicknessRatio="2", then the thickness equals the ring's width divided by 2. This value is overridden by  android:innerRadius. Default value is 3.
android:useLevel
Boolean. "true" if this is used as a  LevelListDrawable. This should normally be "false" or your shape may not appear.
<corners>
Creates rounded corners for the shape. Applies only when the shape is a rectangle.

attributes:

android:radius
Dimension. The radius for all corners, as a dimension value or  dimension resource. This is overridden for each corner by the following attributes.
android:topLeftRadius
Dimension. The radius for the top-left corner, as a dimension value or  dimension resource.
android:topRightRadius
Dimension. The radius for the top-right corner, as a dimension value or  dimension resource.
android:bottomLeftRadius
Dimension. The radius for the bottom-left corner, as a dimension value or  dimension resource.
android:bottomRightRadius
Dimension. The radius for the bottom-right corner, as a dimension value or  dimension resource.

Note: Every corner must (initially) be provided a corner radius greater than 1, or else no corners are rounded. If you want specific corners to not be rounded, a work-around is to use android:radiusto set a default corner radius greater than 1, but then override each and every corner with the values you really want, providing zero ("0dp") where you don't want rounded corners.

<gradient>
Specifies a gradient color for the shape.

attributes:

android:angle
Integer. The angle for the gradient, in degrees. 0 is left to right, 90 is bottom to top. It must be a multiple of 45. Default is 0.
android:centerX
Float. The relative X-position for the center of the gradient (0 - 1.0).
android:centerY
Float. The relative Y-position for the center of the gradient (0 - 1.0).
android:centerColor
Color. Optional color that comes between the start and end colors, as a hexadecimal value or color resource.
android:endColor
Color. The ending color, as a hexadecimal value or  color resource.
android:gradientRadius
Float. The radius for the gradient. Only applied when  android:type="radial".
android:startColor
Color. The starting color, as a hexadecimal value or  color resource.
android:type
Keyword. The type of gradient pattern to apply. Valid values are:
Value Description
"linear" A linear gradient. This is the default.
"radial" A radial gradient. The start color is the center color.
"sweep" A sweeping line gradient.
android:useLevel
Boolean. "true" if this is used as a  LevelListDrawable.
<padding>
Padding to apply to the containing View element (this pads the position of the View content, not the shape).

attributes:

android:left
Dimension. Left padding, as a dimension value or  dimension resource.
android:top
Dimension. Top padding, as a dimension value or  dimension resource.
android:right
Dimension. Right padding, as a dimension value or  dimension resource.
android:bottom
Dimension. Bottom padding, as a dimension value or  dimension resource.
<size>
The size of the shape.

attributes:

android:height
Dimension. The height of the shape, as a dimension value or  dimension resource.
android:width
Dimension. The width of the shape, as a dimension value or  dimension resource.

Note: The shape scales to the size of the container View proportionate to the dimensions defined here, by default. When you use the shape in an ImageView, you can restrict scaling by setting theandroid:scaleType to "center".

<solid>
A solid color to fill the shape.

attributes:

android:color
Color. The color to apply to the shape, as a hexadecimal value or  color resource.
<stroke>
A stroke line for the shape.

attributes:

android:width
Dimension. The thickness of the line, as a dimension value or  dimension resource.
android:color
Color. The color of the line, as a hexadecimal value or  color resource.
android:dashGap
Dimension. The distance between line dashes, as a dimension value or  dimension resource. Only valid if  android:dashWidth is set.
android:dashWidth
Dimension. The size of each dash line, as a dimension value or  dimension resource. Only valid if android:dashGap is set.
example:
XML file saved at  res/drawable/gradient_box.xml:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <gradient
        android:startColor="#FFFF0000"
        android:endColor="#80FF00FF"
        android:angle="45"/>
    <padding android:left="7dp"
        android:top="7dp"
        android:right="7dp"
        android:bottom="7dp" />
    <corners android:radius="8dp" />
</shape>

This layout XML applies the shape drawable to a View:

<TextView
    android:background="@drawable/gradient_box"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content" />

This application code gets the shape drawable and applies it to a View:

Resources res = getResources();
Drawable shape = res. getDrawable(R.drawable.gradient_box);

TextView tv = (TextView)findViewByID(R.id.textview);
tv.setBackground(shape);
see also:

本文转载自:http://blog.csdn.net/sfshine/article/details/8267241

共有 人打赏支持
SuShine
粉丝 123
博文 496
码字总数 144699
作品 0
朝阳
后端工程师
如何实现button点击时,按钮变色

需要建立三个xml ① buttonbackgroundselected.xml ② normalentrydialog.xml ③ buttonselector.xml 其中drawable中的buttonselector.xml中代码为 <?xml version="1.0" encoding="utf-8"?>......

OnOctober29
2016/03/30
510
0
ProgressBar进度条颜色改变

1.图像形式 <?xml version="1.0" encoding="UTF-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <!-- 定义轨道的背景 --> <item android:id="@android :id......

带梦想一7飞
2013/04/12
0
0
Android Selector和Shape的使用方法

1.背景选择器(位于res/drawable/,使用方法:android:background="@drawable/button_selector")button_selector.xml shape_normal.xml shape_pressed.xml 2.文字颜色选择器(位于res/color......

ForingY
2016/07/07
30
0
设置Button背景渐变效果和点击效果

1、设置背景渐变效果,在drawable目录下建buttonshape.xml文件, 内容为: <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" a......

方毅超
2014/05/16
0
0
android res资源 drawable自定义背景 values格式

res anim 动画目录 leftin.xml scale.xml drawable 自定义动画目录 redbuttonbg.xml circlebuttonbg.xml drawable-xhdpi 放资源文件图片 layout 放布局文件图片 raw 音频、数据库等资源文件 ...

cicue
2014/09/25
0
0

没有更多内容

加载失败,请刷新页面

加载更多

React 服务器渲染原理解析与实践

网盘下载地址 React 服务器渲染原理解析与实践 本套课程,讲解了React中SSR技术的整个搭建思路及流程,完整的从原理上讲清楚了SSR的概念,重点在于讲解编写SSR框架遇到的各种知识点,以及细节...

qq__2304636824
26分钟前
0
0
sourcetree 离线免注册登录安装教程

Sourcetree是一个优秀的git可视化管理工具,深受开发者喜爱Sourcetree官网,但是在安装时需要谷歌账户登录,需要翻qiang才可以,此一点一直被人们所诟病。今天本教程就为大家提供离线免登陆安...

QQZZFT
55分钟前
1
0
使用 PostgreSQL 解决一个实际的统计分析问题

使用 PostgreSQL 解决一个实际的统计分析问题作者:老农民(刘启华)Email: 46715422@qq.com 之前有个朋友扔给我一个奇葩需求,他们公司之前做了一批问卷调查,全部都是统一格式的excel...

新疆老农民
58分钟前
8
0
TypeScript基础入门之高级类型的映射类型

转发 TypeScript基础入门之高级类型的映射类型 高级类型 映射类型 一个常见的任务是将一个已知的类型每个属性都变为可选的: interface PersonPartial {    name?: string;    age?...

durban
今天
1
0
Dubbo源码分析(6):Dubbo内核实现之基于SPI思想Dubbo内核实现

SPI接口定义 定义了@SPI注解 package com.alibaba.dubbo.common.extension; import java.lang.annotation.Documented;import java.lang.annotation.ElementType;import java.lang.an......

郑加威
今天
1
0

没有更多内容

加载失败,请刷新页面

加载更多

返回顶部
顶部