AutoCompleteTextView搜索记录栏的使用

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.bignerdranch.android.imooc_treeview.MainActivity">

<AutoCompleteTextView
android:id="@+id/autoCompleteTextView1"
android:completionThreshold="3"
android:completionHint="存在的历史记录"
android:hint="输入你要搜索的关键字"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;

public class MainActivity extends AppCompatActivity {
private AutoCompleteTextView acTextView;
private String[] arr = {"1811","1812","1813","1317","1315","1314"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
acTextView = (AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,arr);
acTextView.setAdapter(adapter);
}
}

 

效果图：