1.新....xml
![](http://img.blog.csdn.net/20141016111053171?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvdTAxMzQyNTUyNw==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast)
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:drawable="@drawable/ic_launcher" />
<item android:state_enabled="true"
android:drawable="@drawable/btn"/>
</selector>
2,
<Button
android:id="@+id/btn_login"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:textSize="20dp"
android:background="@drawable/btn_login"
android:text="登陆" />
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:drawable="@drawable/ic_launcher" />
<item android:state_enabled="true"
android:drawable="@drawable/btn"/>
</selector>
2,
<Button
android:id="@+id/btn_login"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:textSize="20dp"
android:background="@drawable/btn_login"
android:text="登陆" />
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