Android XML Shape使用入门
16lz
2021-01-23
XML Drawable是google为android定义的一种声明式图形文件格式，类似于SVG，但更简单，官方文档非常少，网上有人整理了一份文档，值得细看：
Android Drawable XML Documentation
下面是一个简单的使用例子：
Activity代码
package com.test; import android.app.Activity;import android.os.Bundle; public class DrawableTest extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); }} 布局文件
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:textSize="16sp" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" android:background="@drawable/rect_gradient_linear" /> <TextView android:textSize="16sp" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" android:background="@drawable/oval_gradient_linear" /> <TextView android:textSize="16sp" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" android:background="@drawable/rect_solid_stroke" /> <TextView android:textSize="16sp" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" android:background="@drawable/rect_solid_corners" /></LinearLayout>
Shapre使用实例，共四个：
<?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="#FF4488ee" android:type="linear" android:angle="270" /> <padding android:left="2dp" android:top="2dp" android:right="2dp" android:bottom="2dp" /></shape>
| 1 2 3 4 5 6 7 8 | <? xml version = "1.0" encoding = "utf-8" ?> < shape xmlns:android = "http://schemas.android.com/apk/res/android" android:shape = "oval" > < gradient android:startColor = "#FFaa6622" android:endColor = "#FF2288ee" android:type = "linear" /> < padding android:left = "2dp" android:top = "2dp" android:right = "2dp" android:bottom = "2dp" /> </ shape > |
<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <solid android:color="#ffff0000" /> <padding android:left="5dp" android:top="2dp" android:right="2dp" android:bottom="5dp" /> <stroke android:width="2dp" android:color="#ffffffff" android:dashGap="5dp" android:dashWidth="10dp" /></shape>
<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <solid android:color="#8800ff00" /> <padding android:left="5dp" android:top="5dp" android:right="5dp" android:bottom="5dp" /> <corners android:radius="15dp" /></shape>
效果图
下面是系统源码里的例子，文件为：source/frameworks/base/core/res/res/drawable/progress_horizontal.xml
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@android:id/background"> <shape> <corners android:radius="5dip" /> <gradient android:startColor="#ff9d9e9d" android:centerColor="#ff5a5d5a" android:centerY="0.75" android:endColor="#ff747674" android:angle="270" /> </shape> </item> <item android:id="@android:id/secondaryProgress"> <clip> <shape> <corners android:radius="5dip" /> <gradient android:startColor="#80ffd300" android:centerColor="#80ffb600" android:centerY="0.75" android:endColor="#a0ffcb00" android:angle="270" /> </shape> </clip> </item> <item android:id="@android:id/progress"> <clip> <shape> <corners android:radius="5dip" /> <gradient android:startColor="#ffffd300" android:centerColor="#ffffb600" android:centerY="0.75" android:endColor="#ffffcb00" android:angle="270" /> </shape> </clip> </item> </layer-list>
更多相关文章
- Android文件解压工具类
- android apk dex odex jar 等文件的 反编译工具
- 【转】android编译系统的makefile文件Android.mk写法
- Android+JNI调用–文件操作
- Android错误处理——Android读取txt文件乱码解决方案
- Android 10 创建文件失败
- Android官方入门文档[13]暂停和恢复一个Activity活动