怎么在Android应用中实现一个动态匹配输入的内容功能

<&#63;xml version="1.0" encoding="utf-8"&#63;><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.example.admin.demo.MainActivity"> <AutoCompleteTextView android:completionThreshold="2"  android:id="@+id/autoCompleteTextView1" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="请输入你要搜索的关键词" /></LinearLayout>