thmodelAndroid/uikit/res/layout/nim_media_item_normal.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="150dp"
    android:orientation="vertical">

    <ImageView
        android:id="@+id/media_image"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="centerCrop"
        android:layout_gravity="center"
        android:background="@drawable/nim_default_img"/>

    <ImageView
        android:id="@+id/play_image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:background="@drawable/nim_video_play_icon"/>

</FrameLayout>