android Lollipop(5.0)--touch feedback(触摸反馈)

<style name="AppBaseTheme" parent="android:Theme.Material.Light">
<!-- API 21 theme customizations can go here. -->
<item name="android:colorControlHighlight">#0000FF</item>
</style>

<!-- A red ripple masked against an opaque rectangle. -->
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="#ff0000ff" >

<!-- 添加边界 -->
<item
android:id="@android:id/mask"
android:drawable="@color/defaults"/>

</ripple>

<LinearLayout 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"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.demomaterialtouchfeedback.MainActivity" >

<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >

<Button
android:id="@+id/btn_test"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="?android:attr/selectableItemBackground"
android:text="@string/bound_ripple" />

<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="?android:attr/selectableItemBackgroundBorderless"
android:text="@string/unbound_ripple" />
</LinearLayout>

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:background="@drawable/ripple"
android:clickable="true"
android:elevation="1dp"
android:text="@string/hello_world" />

<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:background="@drawable/ripple"
android:clickable="true"
android:elevation="1dp"
android:text="@string/hello_world" />

<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginTop="20dp"
android:background="@drawable/ripple"
android:clickable="true"
android:elevation="1dp"
android:orientation="vertical"
android:visibility="gone" >

<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:elevation="1dp"
android:src="@drawable/ic_launcher" />
</LinearLayout>

<ListView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</ListView>

</LinearLayout>