AutoCompleteTextView，MultiAutoCompleteTextView自動完成輸入內容的控件



AutoCompleteTextView , 可實現用戶輸入內容有自動提示的功能，類似百度的搜索結果.

eg:實現城市名的模糊查詢

運行結果截圖：

1. activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	android:orientation="vertical" >
	<TextView
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:text="AutoCompleteTextView" />
	<AutoCompleteTextView
		android:id="@+id/autotext1"
		android:layout_width="match_parent"
		android:layout_height="wrap_content" >
	</AutoCompleteTextView>
	<TextView
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:text="MultiAutoCompleteTextView" />
	<MultiAutoCompleteTextView
		android:id="@+id/multiautotext"
		android:layout_width="match_parent"
		android:layout_height="wrap_content" />
</LinearLayout>

2. MainActivity.java

package com.android.myautotext1;

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

public class MainActivity extends Activity {

	private AutoCompleteTextView auto;
	private MultiAutoCompleteTextView multiauto;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        auto  = (AutoCompleteTextView)this.findViewById(R.id.autotext1);
        String [] autoStrings = new String[]{"聯合國","聯合國安理會","聯合國五個常任理事國","Google","Google Map"};
        //第二個參數表示適配器的下拉風格
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(MainActivity.this,android.R.layout.simple_dropdown_item_1line, autoStrings);
        auto.setAdapter(adapter);        
        
        multiauto = (MultiAutoCompleteTextView)this.findViewById(R.id.multiautotext);
        multiauto.setAdapter(adapter);
        //完成對選項的拆分功能，以逗號拆分
        multiauto.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer()); 
    }


    
}

注意：適配器的使用