在Android中創建AlertDialog時需要提示

Question

我的活動中按下了一個按鈕時，我調用了下面的代碼。

AlertDialog.Builder alertDialog = new AlertDialog.Builder(this).create(); 
      alertDialog.setTitle("Alert 1"); 
      alertDialog.setMessage("This is an alert"); 
      alertDialog.setButton("OK", new DialogInterface.OnClickListener() { 
       public void onClick(DialogInterface dialog, int which) { 
       return; 
      } }); 

我已經加入進口這兩種：

import android.app.AlertDialog; 
import android.app.AlertDialog.Builder; 

但仍得到以下錯誤：

Description Resource Path Location Type 
The constructor AlertDialog.Builder(new View.OnClickListener(){}) is undefined MobileTrackerActivity.java /MobileTracker/src/com/example/mobiletracker line 77 Java Problem 
The method setButton(String, new DialogInterface.OnClickListener(){}) is undefined for the type AlertDialog.Builder MobileTrackerActivity.java /MobileTracker/src/com/example/mobiletracker line 80 Java Problem 
Type mismatch: cannot convert from AlertDialog to AlertDialog.Builder MobileTrackerActivity.java /MobileTracker/src/com/example/mobiletracker line 77 Java Problem 

任何人能給出任何解決方案，我好嗎？我對Java非常陌生。

Answer 1

如果你看看這個頁面：

http://developer.android.com/guide/topics/ui/dialogs.html

和錯誤信息，你得到你只需要進行此更改：

AlertDialog alertDialog = new AlertDialog.Builder(this).create(); 

Answer 2

創建AlertDilog這樣：

AlertDialog.Builder alertDialog = new AlertDialog.Builder(this); 
    alertDialog.setTitle("Alert 1"); 
    alertDialog.setMessage("This is an alert"); 
    alertDialog.setButton("OK", new DialogInterface.OnClickListener() { 
    public void onClick(DialogInterface dialog, int which) { 
     return; 
    } }); 
    AlertDialog alert = alertDialog.create(); 
    alert.show();