标签：android style http color strong 文件 io art
以Button为例：
一般Button有2个状态，按下和正常状态
1.在res下新建drawable文件夹，用以存放自己的Drawable文件
2.在drawable文件夹下新建按下和正常状态shape文件(是图片资源，则略过此步骤)
3.新建Button背景Selector文件
4.为Button的backgroud指定Drawable
代码：
button_noraml.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
<stroke
android:width="1dp"
android:color="#00FF00" />
<gradient
android:angle="270"
android:endColor="#e5e5e5"
android:startColor="#DCDCDC" />
</shape>
————————————————————————————————————————————————————
button_press.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- 描边 -->
<stroke
android:width="1dp"
android:color="#00FF00" />
<!-- 渐变 -->
<gradient
android:angle="270"
android:endColor="#00FF00"
android:startColor="#90EE90" />
</shape>
————————————————————————————————————————————————————
button_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- 按下状态的Drawable -->
<item android:drawable="@drawable/button_press" android:state_pressed="true"></item>
<!-- 正常状态的Drawable -->
<item android:drawable="@drawable/button_noraml"></item>
</selector>
————————————————————————————————————————————————————
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="30dp"
android:background="@drawable/button_selector"
android:text="Button" />
</LinearLayout>
android 控件选择器Selector,布布扣,bubuko.com
标签：android style http color strong 文件 io art
原文地址：http://www.cnblogs.com/djgzhiyong/p/3880033.html
