1、效果爆照

 

 

 

 

 

 

2、代碼實現

前提需要保證app有讀寫權限

activity_select_folder.xml文件如下

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"xmlns:app="http://schemas.android.com/apk/res-auto"android:background="@color/c1"><androidx.core.widget.NestedScrollViewandroid:layout_width="match_parent"android:layout_height="match_parent"