android控件—MuAutoCompleteTextView-优快云博客

本文介绍了一个使用Android中AutoCompleteTextView和MultiAutoCompleteTextView组件的例子。通过这个示例，读者可以了解如何设置自动完成文本框，并为其配置适配器来显示预定义的字符串列表。此外，还展示了如何设置逗号分隔符，以便在一个字段内输入多个值。

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package com.example.autocompletetextview;

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

public class MainActivity extends AppCompatActivity {
   private AutoCompleteTextView autoCompleteTextView;
    private MultiAutoCompleteTextView multiAutoCompleteTextView;
    private String[] strings={"beijing1","beijing2","beijing3","shanghai"};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        /*初始化控件找到id
        *新建一个适配器
        *绑定适配器
         */
        autoCompleteTextView= (AutoCompleteTextView) findViewById(R.id.autoCompleteTextView1);
        ArrayAdapter<String> arrayAdapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,strings);
        autoCompleteTextView.setAdapter(arrayAdapter);
        multiAutoCompleteTextView= (MultiAutoCompleteTextView) findViewById(R.id.multiAutoCompleteTextView1);
        multiAutoCompleteTextView.setAdapter(arrayAdapter);
        multiAutoCompleteTextView.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());
    }
}

前端

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    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.example.autocompletetextview.MainActivity">


    <AutoCompleteTextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="请输入关键字"
        android:id="@+id/autoCompleteTextView1"
        android:completionThreshold="3"
        />

    <MultiAutoCompleteTextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/autoCompleteTextView1"
        android:hint="请输入多个信息"
        android:id="@+id/multiAutoCompleteTextView1"

        />
</RelativeLayout>