AutoCompleteTextView單擊Android代碼中的事件代碼

Question

我想用eclipse製作一個使用自動完成並顯示結果和解釋頁的android應用程序。這是我的第一次嘗試。我仍然對此很不樂觀，需要幫助這麼多！

我從codeofninja.com（https://www.codeofaninja.com/2013/11/android-autocompletetextview-example-sqlite-database.html）

一個示例源代碼，這個項目包含5個java文件和1個xml文件;

activity_main.xml中，MainActivity.java，CustomAutoCompleteView.java，DatabaseHandler.java，CustomAutoCompleteTextChangedListener.java，MyObject.java

我的問題是，如何讓代碼來顯示與該樣本的來源基於解釋的結果。我的意思是，當我們搜索「Cofee」時，結果顯示出來，我們可以觸摸「Cofee」並獲取有關它的信息，例如移動應用程序上的Dictionary。

謝謝！

MainActivity.Java這個SAMPE來源：

package com.example.autocompletetextviewdb; 

import java.util.List; 

import android.os.Bundle; 
import android.app.Activity; 
import android.widget.ArrayAdapter; 

public class MainActivity extends Activity { 

    /* 
    * Change to type CustomAutoCompleteView instead of AutoCompleteTextView 
    * since we are extending to customize the view and disable filter 
    * The same with the XML view, type will be CustomAutoCompleteView 
    */ 
    CustomAutoCompleteView myAutoComplete; 

    // adapter for auto-complete 
    ArrayAdapter<String> myAdapter; 

    // for database operations 
    DatabaseHandler databaseH; 

    // just to add some initial value 
    String[] item = new String[] {"Please search..."}; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 

     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     try{ 

      // instantiate database handler 
      databaseH = new DatabaseHandler(MainActivity.this); 

      // put sample data to database 
      insertSampleData(); 

      // autocompletetextview is in activity_main.xml 
      myAutoComplete = (CustomAutoCompleteView) findViewById(R.id.myautocomplete); 

      // add the listener so it will tries to suggest while the user types 
      myAutoComplete.addTextChangedListener(new CustomAutoCompleteTextChangedListener(this)); 

      // set our adapter 
      myAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line, item); 
      myAutoComplete.setAdapter(myAdapter); 

     } catch (NullPointerException e) { 
      e.printStackTrace(); 
     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
    } 

    public void insertSampleData(){ 

     // CREATE 
     databaseH.create(new MyObject("January")); 
     databaseH.create(new MyObject("February")); 
     databaseH.create(new MyObject("March")); 
     databaseH.create(new MyObject("April")); 
     databaseH.create(new MyObject("May")); 
     databaseH.create(new MyObject("June")); 
     databaseH.create(new MyObject("July")); 
     databaseH.create(new MyObject("August")); 
     databaseH.create(new MyObject("September")); 
     databaseH.create(new MyObject("October")); 
     databaseH.create(new MyObject("November")); 
     databaseH.create(new MyObject("December")); 
     databaseH.create(new MyObject("New Caledonia")); 
     databaseH.create(new MyObject("New Zealand")); 
     databaseH.create(new MyObject("Papua New Guinea")); 
     databaseH.create(new MyObject("COFFEE-1K")); 
     databaseH.create(new MyObject("coffee raw")); 
     databaseH.create(new MyObject("authentic COFFEE")); 
     databaseH.create(new MyObject("k12-coffee")); 
     databaseH.create(new MyObject("view coffee")); 
     databaseH.create(new MyObject("Indian-coffee-two")); 

    } 

    // this function is used in CustomAutoCompleteTextChangedListener.java 
    public String[] getItemsFromDb(String searchTerm){ 

     // add items on the array dynamically 
     List<MyObject> products = databaseH.read(searchTerm); 
     int rowCount = products.size(); 

     String[] item = new String[rowCount]; 
     int x = 0; 

     for (MyObject record : products) { 

      item[x] = record.objectName; 
      x++; 
     } 

     return item; 
    } 

} 

Answer 1

如果要處理來自用戶的選擇從下拉列表中建議一個產生的點擊，你將不得不使用以下命令：

actextView.setOnItemSelectedListener(new OnItemClickListener() { 
    @Override 
    public void onItemClick (AdapterView<?> parent, View view, int position, long id) { 
     //... your stuff 
    } 
}); 

來源：how to set setOnClickListener for AutoCompleteTextView?