AlertDialog上RatingBar的問題

Question

我正在試着用RatingBar做AlertDialog，並且出現一個我不知道如何解決的錯誤。這裏是我的代碼：

AlertDialog.Builder builder = new AlertDialog.Builder(this); 
builder.setTitle(getResources().getString(R.string.messageAskFB)) 
    .setCancelable(true) 
    .setPositiveButton("Post on Facebook", new DialogInterface.OnClickListener() { 
     @Override 
     public void onClick(DialogInterface dialog, int id) { 
      try { 
       Intent act = new Intent (RutaActualActivity.this, ActualizaEstado.class); 
       act.putExtra(getString(R.string.package_name), mens); 
       startActivity(act); 
       } catch (Throwable e) { 
        e.printStackTrace(); 
       } 

      } 
    }); 

LayoutInflater inflater = getLayoutInflater(); 
View dialoglayout = inflater.inflate(R.layout.layout_dialog, (ViewGroup) getCurrentFocus()); 
final int id_poiii=p.getId_poi(); 

builder.setView(dialoglayout); 

AlertDialog lala = builder.create(); 

RatingBar rat = (RatingBar) lala.findViewById(R.id.dialogRatingBar); 
rat.setOnRatingBarChangeListener(new OnRatingBarChangeListener() { 

    public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) { 
     TaskRating rattask = new TaskRating(); 
     rattask.execute(id_poiii,ratingBar.getNumStars()); 
    } 
}); 

Button buttpost = (Button) lala.findViewById(R.id.dialogfacebook); 
buttpost.setOnClickListener(new View.OnClickListener() { 

    public void onClick(View v) { 
     Intent act = new Intent (RutaActualActivity.this, ActualizaEstado.class); 
     act.putExtra(getString(R.string.package_name), mens); 
     startActivity(act); 
    } 
}); 


lala.show(); 

這裏的layout_dialog的XML：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" > 

    <Button 
     android:id="@+id/dialogfacebook" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_gravity="center" 
     android:text="@string/titleAskFB" /> 

    <TextView 
     android:id="@+id/dialogTextView" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_gravity="center" 
     android:text="@string/rate_this_point" 
     android:textSize="20sp" /> 

    <RatingBar 
     android:id="@+id/dialogRatingBar" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_gravity="center" /> 

</LinearLayout> 

的問題是，「老鼠倉」和「buttpost」的findViewById是空的，我不知道另一種方式將偵聽器添加到該評級欄和按鈕。有任何想法嗎？任何幫助，將不勝感激。非常感謝！

Answer 1

嘗試爲從AlertDialog佈局查找按鈕和的RatingBar：

RatingBar rat = (RatingBar) dialoglayout.findViewById(R.id.dialogRatingBar); 

Button buttpost = (Button) dialoglayout.findViewById(R.id.dialogfacebook);