構造函數ArrayAdapter <String>（SmsActivity，int，SmsActivity.SmsReceived）未定義？

Question

以下代碼顯示一個錯誤味精，

setListAdapter(new ArrayAdapter<String>(this, R.layout.main,mSmsReceiver)); 

錯誤味精：構造ArrayAdapter（SmsActivity，INT，SmsActivity.SmsReceived）是未定義

全碼在下文提供。

我的問題：

1. 我怎麼能修復錯誤？

2. 代替使用mSmsReceiver，如何/我應該怎麼修改顯示在STR（下面）消息的ListView

   str += "SMS from " + msgs[i].getOriginatingAddress(); 
   

完整代碼：

import... 
    .... 

    public class SmsActivity extends ListActivity { 
    private SmsReceived mSmsReceiver; 
    public SmsActivity(){ 
    mSmsReceiver = new SmsReceived(); 

    setListAdapter(new ArrayAdapter<String>(this, R.layout.main,mSmsReceiver)); 

    ListView listView = getListView(); 
    listView.setTextFilterEnabled(true); 

    //---method is call when listitem is clicked--- 
    listView.setOnItemClickListener(new OnItemClickListener() {edit later}); 
    } 


    private class SmsReceived extends BroadcastReceiver { 
    @Override 
    public void onReceive(Context context, Intent intent) 
    { 
     //---get the SMS message passed in--- 
     Bundle bundle = intent.getExtras();   
     SmsMessage[] msgs = null; 
     String str = "";  
     if (bundle != null) 
     { 
      //---retrieve the SMS message received--- 
      Object[] pdus = (Object[]) bundle.get("pdus"); 
      msgs = new SmsMessage[pdus.length];    
      for (int i=0; i<msgs.length; i++){ 
       msgs[i] = SmsMessage.createFromPdu((byte[])pdus[i]);     
       str += "SMS from " + msgs[i].getOriginatingAddress();       

      } 
     } 
    } 
    } 
    } 

**對不起，因爲我這些東西真的太新了，所以希望你可以直接編輯我的代碼，以便我可以看到你想說的。我真的很抱歉，如果它確實給你帶來了很多負擔...

Answer 1

要修復錯誤，需要正確的對象類型作爲適配器的參數。由於您告訴ArrayAdapter它將有String數據類型，因此您必須提供一個數組或列表集合對象，其類型爲String。

更改此：

private SmsReceived mSmsReceiver; 

要這樣：

private String[] mSmsReceiver; 
//or 
private List<String> mSmsReceiver 

改變數據類型爲mSmsReceiver後，要確保你初始化並推到前填寫一些數據ArrayAdapter。

Answer 2

@Waqas謝謝..但是，當我更改代碼（下面顯示）後，發生以下錯誤。

錯誤味精：類型不匹配：不能轉換從SmsActivity.SmsReceived爲String []

代碼BEFORE改性：

public class SmsActivity extends ListActivity { 
private SmsReceived mSmsReceiver; 
public SmsActivity(){ 
mSmsReceiver = new SmsReceived(); 

代碼AFTER改性：

public class SmsActivity extends ListActivity { 
private String[] mSmsReceiver; 
public SmsActivity(){ 
mSmsReceiver = new SmsReceived();