[Android] 그라데이션 버튼, Gradient Button <sample><ref>

btn_red.xml

<?xml version="1.0" encoding="utf-8"?>

<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:state_pressed="true" >

        <shape>

            <solid

                android:color="#ef4444" />

            <stroke

                android:width="1dp"

                android:color="#992f2f" />

            <corners

                android:radius="3dp" />

            <padding

                android:left="10dp"

                android:top="10dp"

                android:right="10dp"

                android:bottom="10dp" />

        </shape>

    </item>

    <item>

        <shape>

            <gradient

                android:startColor="#ef4444"

                android:endColor="#992f2f"

                android:angle="270" />

            <stroke

                android:width="1dp"

                android:color="#992f2f" />

            <corners

                android:radius="3dp" />

            <padding

                android:left="10dp"

                android:top="10dp"

                android:right="10dp"

                android:bottom="10dp" />

        </shape>

    </item>

</selector>

layout.xml

<Button android:text="Button" android:id="@+id/button1" android:background="@drawable/btn_red"></Button>

참조 : http://www.dibbus.com/2011/02/gradient-buttons-for-android/