Android - AutoCompleteTextView (输入框动态匹配内容)

Android : AutoCompleteTextView的使用

比如在百度搜索的时候你输入的关键字，就会动态的比配某些相关的内容，而这项技术被称为：AutoCompleteTextView

AutoCompleteTextView特定的属性值 ：

android:CompletionThreshold = "2"

设置多少个字符，自动匹配

1 . 初始化控件

2. 创建适配器

3. 创建将要输入的（匹配的内容）

4. 将adapter 与当前的autoCompleteTextView 进行绑定

MainActivity ：

package com.wuya.autocompletetextview;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;

public class MainActivity extends Activity {

public AutoCompleteTextView autoCompleteTextView;

private String[] data = {"wangjiahao","wangjiahaodd","wangjia王长勇","wang王昌勇","yangmei杨梅","yang杨没"};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
/**
*  1 . 初始化控件
*  2. 创建适配器
*  3. 创建将要输入的（匹配的内容）
*  4. 将adapter 与当前的autoCompleteTextView 进行绑定
*/
autoCompleteTextView = (AutoCompleteTextView) findViewById(R.id.autoCompleteTextView1);
ArrayAdapter<String> arrdatas = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_1, data);
autoCompleteTextView.setAdapter(arrdatas);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

}

activity_main.xml

<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=".MainActivity" >

<AutoCompleteTextView
android:completionThreshold="5"
android:id="@+id/autoCompleteTextView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="please enter the content" />

</RelativeLayout>

接下来还有在分隔符之后能够继续动态提示的 ：

MultiAutoCompleteTextView :

multiAutoCompleteTextView = (MultiAutoCompleteTextView) findViewById(R.id.MultiAutoCompleteTextView);
multiAutoCompleteTextView.setAdapter(arrdatas);

//设置以逗号结尾的分隔符

multiAutoCompleteTextView.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());