如何在Java中按位置顯示警報對話框中的項目？

Question

我正在製作一個應用程序，用戶在ListView中看到一個單詞列表，並可以單擊它們進行翻譯。我想要的是在列表中看到英文單詞，並且警告對話框會引起一些亂碼（稍後我會將亂碼變爲西班牙語定義）。

現在，我有兩個字符串按順序排列，因此當您單擊列表中的第一個單詞時，警報將包含第二組字符串的第一個單詞。當您單擊列表中的第二個單詞時，我希望第二個字符串的第二個單詞出現在警報中。當您單擊列表中的第三個單詞時，我希望第二個字符串的第三個單詞出現在警報中。我唯一的問題是，警報不會顯示第二個字符串中的相應項目。警報僅顯示列表中單擊的單詞。

我意識到我可以爲每個單詞做一個活動，但這看起來很麻煩，所以我決定使用一個警告對話框。

有人可以更新我的代碼，告訴我如何使第二個字符串中的單詞出現在警報中嗎？

這是我的代碼：

import android.app.AlertDialog; 
import android.app.ListActivity; 
import android.content.DialogInterface; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 


public class SpanishActivity extends ListActivity { 

static final String[] basicWords = new String[] { 
    "Hello", "Goodbye", "Yes", "No", 
    "Why", "Where", "When", "What ", "Who", "How", "Absolutely", "I", "You", 
    "He", "She", "That", "Black", "White", "Red","Orange", "Blue", "Green", 
    "Yellow", "Purple", "Later" , "Now", "Today", "Tomorrow", "Left", "Right", 
    "Hand", "Mouth", "Tongue", "Nose", "Ear", "Eyes", "Leg", "Dog", "Cat", 
    "Elephant", "Snake", "Camel", "Pen", "Pencil", "Book", "Paper", "Hot", 
    "Cold", "Airplane", "Car", "Raining", "Sunny", "Cloudy", "Water", "Please", 
    "Help", "Work", "English", "America", "England", "Funny", "Thanks", 
    "Good", "Bad", "Happy", "Sad", 
    }; 

String[] spanishBasic = new String[]{ 
    "afsdfb", "qerg", "nt4th", "erhn", 

     "ehrethn", "rth", "Kub", "ygfd ", "cvb", "ytrfvh", "jhgv", "Mvbay",   "hgfv", 

     "gv", "cvbnhg", "gfd", "hgf", "ytr", "hgf","wthw", "wetergh",  "wewrth", 

     "weth", "erg", "wrgwr" , "dfghj", "xdhtcjfy", "cfj", "zsrxdtcf", "oiuy", 

     "rxjtdcfky", "n", "dfgh", "sdfgh", "fgbh", "nkhn", "ayr", "ota",  "dfgh", 

     "Hafghi", "ghjnp", "Ogtyh", "dfg", "fghn", "fghjnm", "ghn", "hjk", 

     "xdcfgh", "xcv", "hjdi", "fghish", "fghoop", "Bhjl", "bnani", "cvbn", 

     "Mghj", "bhjam", "hjayzi", "ghjk", "vhj", "vghj", "cfgh", 

     "bhj", "bhjra", "ghjshi", "fghhum", 

}; 

    /** Called when the activity is first created. */ 


@Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setListAdapter(new ArrayAdapter<String>(this, 
       android.R.layout.simple_list_item_1, basicWords)); 
     getListView().setTextFilterEnabled(true); 
    } 

@Override 
protected void onListItemClick(ListView l, View v, int position, long id) { 
    // TODO Auto-generated method stub 
    super.onListItemClick(l, v, position, id); 

    new AlertDialog.Builder(this) 
    .setTitle("Spanish") 
    .setMessage("" + getListView().getItemAtPosition(position)) 
    .setPositiveButton("Back to List", 
    new DialogInterface.OnClickListener() { 
     public void onClick(DialogInterface dialog, int which) {}} 
    ) 
    .show(); 


} 


} 

Answer 1

你幾乎您所需要的完成。

使用

.setMessage("" + spanishBasic[position]) 

代替

.setMessage("" + getListView().getItemAtPosition(position)) 

我的代碼是在這裏

public class SpanishActivity extends ListActivity { 

static final String[] basicWords = new String[] { 
    "Hello", "Goodbye", "Yes", "No", 
    "Why", "Where", "When", "What ", "Who", "How", "Absolutely", "I", "You", 
    "He", "She", "That", "Black", "White", "Red","Orange", "Blue", "Green", 
    "Yellow", "Purple", "Later" , "Now", "Today", "Tomorrow", "Left", "Right", 
    "Hand", "Mouth", "Tongue", "Nose", "Ear", "Eyes", "Leg", "Dog", "Cat", 
    "Elephant", "Snake", "Camel", "Pen", "Pencil", "Book", "Paper", "Hot", 
    "Cold", "Airplane", "Car", "Raining", "Sunny", "Cloudy", "Water", "Please", 
    "Help", "Work", "English", "America", "England", "Funny", "Thanks", 
    "Good", "Bad", "Happy", "Sad", 
    }; 

String[] spanishBasic = new String[]{ 
    "afsdfb", "qerg", "nt4th", "erhn", 

     "ehrethn", "rth", "Kub", "ygfd ", "cvb", "ytrfvh", "jhgv", "Mvbay",   "hgfv", 

     "gv", "cvbnhg", "gfd", "hgf", "ytr", "hgf","wthw", "wetergh",  "wewrth", 

     "weth", "erg", "wrgwr" , "dfghj", "xdhtcjfy", "cfj", "zsrxdtcf", "oiuy", 

     "rxjtdcfky", "n", "dfgh", "sdfgh", "fgbh", "nkhn", "ayr", "ota",  "dfgh", 

     "Hafghi", "ghjnp", "Ogtyh", "dfg", "fghn", "fghjnm", "ghn", "hjk", 

     "xdcfgh", "xcv", "hjdi", "fghish", "fghoop", "Bhjl", "bnani", "cvbn", 

     "Mghj", "bhjam", "hjayzi", "ghjk", "vhj", "vghj", "cfgh", 

     "bhj", "bhjra", "ghjshi", "fghhum", 

}; 

    /** Called when the activity is first created. */ 


    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setListAdapter(new ArrayAdapter<String>(this, 
       android.R.layout.simple_list_item_1, basicWords)); 
     getListView().setTextFilterEnabled(true); 
    } 

protected void onListItemClick(ListView l, View v, int position, long id) { 
    // TODO Auto-generated method stub 
    super.onListItemClick(l, v, position, id); 

    new AlertDialog.Builder(this) 
    .setTitle("Spanish") 
    .setMessage("" + spanishBasic[position]) 
    .setPositiveButton("Back to List", 
    new DialogInterface.OnClickListener() { 
     public void onClick(DialogInterface dialog, int which) {}} 
    ) 
    .show(); 


} 


} 

祝你好運，有一個愉快的一天..