Android -如何在工具栏的按钮上实现这种模糊的背景效果？

<androidx.appcompat.widget.Toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="?attr/colorPrimary"
    android:elevation="4dp"
    android:theme="@style/ThemeOverlay.AppCompat.ActionBar" />

Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/toolbar_background"
    android:orientation="vertical">

    <!-- 添加你的按钮和其他视图 -->
    <!-- ... -->

</LinearLayout>

<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
    android:src="@drawable/your_background_image"
    android:tileMode="disabled"
    android:gravity="fill">

    <blur xmlns:android="http://schemas.android.com/apk/res/android"
        android:radius="8"
        android:filter="true" />

</bitmap>

LayoutInflater inflater = LayoutInflater.from(this);
View backgroundLayout = inflater.inflate(R.layout.background_layout, toolbar, false);
toolbar.addView(backgroundLayout);