Android高级组件AutoCompleteTextView自动完成文本框使用详解

package com.example.test; 
 
 
import android.app.Activity; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.ArrayAdapter; 
import android.widget.AutoCompleteTextView; 
import android.widget.Button; 
import android.widget.Toast; 
 
 
public class MainActivity extends Activity { 
  //此字符串是要在下拉菜单中显示的列表项 
  private static final String[] COUNTRIES=new String[]{"HeNan","HeNan大学", 
    "HeNan理工大学","HeNan工业大学","HeNan万方科技学院","HeNan第二附属医院二院"}; 
  @Override 
  protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
     
    //获取自动完成文本框 
    final AutoCompleteTextView textView=(AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1); 
    //注意ArrayAdapter与SimpleAdapter的区别 
    //创建一个ArrayAdapter适配器 
    ArrayAdapter adapter=new ArrayAdapter(this,android.R.layout.simple_dropdown_item_1line,COUNTRIES); 
    textView.setAdapter(adapter);//为自动完成文本框设置适配器 
     
    Button button=(Button)findViewById(R.id.button0);//获取"搜索"按钮 
    //为搜索按钮添加事件监听器 
    button.setOnClickListener(new OnClickListener() { 
       
      @Override 
      public void onClick(View arg0) { 
        Toast.makeText(MainActivity.this, textView.getText().toString(),Toast.LENGTH_SHORT).show(); 
         
      } 
    }); 
  } 
}