收缩波纹效果

我在Github中有以下项目：https://github.com/Ali-Rezaei/PadLayout

它包括一个名为fragment_dialpad_animation:的布局(用于拨号盘4(

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:custom="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageButton
android:id="@+id/num_pad_btn"
android:layout_width="@dimen/call_button_width"
android:layout_height="@dimen/call_button_height"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="20dp"
android:background="@drawable/circle_blue"
android:src="@drawable/ic_dialpad_white_24dp"
tools:ignore="ContentDescription" />
<LinearLayout
android:id="@+id/number_pad"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#FFF"
android:orientation="vertical">
<com.github.ali.android.client.customview.view.PadLayout
android:id="@+id/padLayout"
style="@style/PadLayoutStyle.Animation"
android:layout_width="match_parent"
android:layout_height="320dp"
custom:numColumns="3"
custom:numRows="4">
<com.github.ali.android.client.customview.view.DialPadKey
android:id="@+id/button1"
style="@style/PadButtonStyle.Ripple"
custom:letterGone="false"
custom:numberText="1" />
<com.github.ali.android.client.customview.view.DialPadKey
android:id="@+id/button2"
style="@style/PadButtonStyle.Ripple"
custom:letterText="ABC"
custom:numberText="2" />
<com.github.ali.android.client.customview.view.DialPadKey
android:id="@+id/button3"
style="@style/PadButtonStyle.Ripple"
custom:letterText="DEF"
custom:numberText="3" />
<com.github.ali.android.client.customview.view.DialPadKey
android:id="@+id/button4"
style="@style/PadButtonStyle.Ripple"
custom:letterText="GHI"
custom:numberText="4" />
<com.github.ali.android.client.customview.view.DialPadKey
android:id="@+id/button5"
style="@style/PadButtonStyle.Ripple"
custom:letterText="JKL"
custom:numberText="5" />
<com.github.ali.android.client.customview.view.DialPadKey
android:id="@+id/button6"
style="@style/PadButtonStyle.Ripple"
custom:letterText="MNO"
custom:numberText="6" />
<com.github.ali.android.client.customview.view.DialPadKey
android:id="@+id/button7"
style="@style/PadButtonStyle.Ripple"
custom:letterText="PQRS"
custom:numberText="7" />
<com.github.ali.android.client.customview.view.DialPadKey
android:id="@+id/button8"
style="@style/PadButtonStyle.Ripple"
custom:letterText="TUV"
custom:numberText="8" />
<com.github.ali.android.client.customview.view.DialPadKey
android:id="@+id/button9"
style="@style/PadButtonStyle.Ripple"
custom:letterText="WXYZ"
custom:numberText="9" />
<com.github.ali.android.client.customview.view.DialPadKey
android:id="@+id/button10"
style="@style/PadButtonStyle.Ripple"
custom:letterGone="false"
custom:numberText="*" />
<com.github.ali.android.client.customview.view.DialPadKey
android:id="@+id/button11"
style="@style/PadButtonStyle.Ripple"
custom:letterText="+"
custom:numberText="0" />
<com.github.ali.android.client.customview.view.DialPadKey
android:id="@+id/button12"
style="@style/PadButtonStyle.Ripple"
custom:letterGone="false"
custom:numberText="#" />
</com.github.ali.android.client.customview.view.PadLayout>
<include
layout="@layout/call_button"
android:id="@+id/call_button"
android:layout_width="@dimen/call_button_width"
android:layout_height="@dimen/call_button_width"
android:layout_gravity="center"
android:layout_marginBottom="16dp" />
</LinearLayout>
</RelativeLayout>

它具有连锁反应：

<?xml version="1.0" encoding="utf-8"?>
<!-- unbounded ripple effect ?android:attr/selectableItemBackgroundBorderless -->
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="@color/dialpad_button_pressed" />

目前，波纹效应的大小太大。有没有解决收缩波纹效应的方法？