Android自定义shape的使用

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MainActivity如下:

package cn.testshape;import android.os.Bundle;import android.app.Activity;/** * Demo描述: * 自定义shape的使用 */public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);}}

main.xml如下:

<RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    >    <Button        android:layout_width="250dip"        android:layout_height="50dip"        android:text="测试自定义shape的使用"         android:background="@drawable/background_selector"        android:textColor="@drawable/textcolor_selector"        android:layout_centerInParent="true"        android:gravity="center"      /></RelativeLayout>

background_selector.xml如下:

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android" >     <item android:drawable="@drawable/pressed_shape" android:state_pressed="true"/>     <item android:drawable="@drawable/default_shape"/></selector>

default_shape.xml如下:

<?xml version="1.0" encoding="utf-8"?>    <!-- 定义矩形rectangle --><shape xmlns:android="http://schemas.android.com/apk/res/android"       android:shape="rectangle" >    <!-- 定义边框颜色 -->    <solid android:color="#d1d1d1" />    <!-- 定义圆角弧度 -->    <corners        android:bottomLeftRadius="4dp"        android:bottomRightRadius="4dp"        android:topLeftRadius="4dp"        android:topRightRadius="4dp"     /></shape>

pressed_shape.xml如下:

<?xml version="1.0" encoding="utf-8"?>    <!-- 定义矩形rectangle --><shape xmlns:android="http://schemas.android.com/apk/res/android"       android:shape="rectangle" >    <!-- 定义边框颜色 -->    <solid android:color="#7bb3f8" />    <!-- 定义圆角弧度 -->    <corners        android:bottomLeftRadius="4dp"        android:bottomRightRadius="4dp"        android:topLeftRadius="4dp"        android:topRightRadius="4dp"     /></shape>

textcolor_selector.xml如下:

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android" >      <item android:color="#ffffff" android:state_pressed="true"/>      <item android:color="#000000"/></selector>