安卓学习笔记-视图-RecyclerView（三）瀑布流布局管理器_qq275467589的博客

//item用卡片视图布局来做
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView xmlns:android="https://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    xmlns:app="https://schemas.android.com/apk/res-auto"
    android:layout_margin="5dp"
    android:background="@color/white"
    app:layout_constraintCircleRadius="5dp">
    <ImageView
        android:id="@+id/pu_imagView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/p1"/>
</androidx.cardview.widget.CardView>//item用卡片视图布局来做
<?xml version="1.0" encoding="u