需要建立三个xml

①   button_background_selected.xml

②   normal_entry_dialog.xml

③   button_selector.xml

其中drawable中的button_selector.xml中代码为

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

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

    <item android:drawable="@drawable/button_background" android:state_enabled="true" android:state_window_focused="false"/>

    <item android:drawable="@drawable/button_background_selected" android:state_pressed="true"/>

    <item android:drawable="@drawable/button_background" android:state_focused="true"/>

    <item android:drawable="@drawable/button_background"/>

</selector>

Drawable中的button_background_selected.xml代码

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

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

    android:shape="rectangle" >

    <corners android:radius="2dip" >

    </corners>

    <gradient android:startColor="#ff00fea1"

        android:centerColor="#ff00ff21"

        android:endColor="#ff00fea1"

        />

</shape>

Layout中的normal_entry_dialog.xml的button按钮

        <Button

            android:id="@+id/bt_normal_dialog_ok"

            android:layout_width="140dip"

            android:layout_height="40dip"

            android:background="@drawable/button_selector"

            android:text="确定" />

        <Button

            android:id="@+id/bt_normal_dialog_cancle"

            android:layout_width="140dip"

            android:layout_height="40dip"

            android:layout_marginLeft="5dip"

            android:background="@drawable/button_selector"

            android:text="取消" />

</LinearLayout>