AlertDialog setOnShowListener從來沒有所謂

Question

當按下一個按鈕，我使用一個稍微不同的方法，以保持該對話框打開：

AlertDialog.Builder builder = new AlertDialog.Builder(NewTableActivity.this); 
builder.setTitle(R.string.addComponent); 

final EditText titleText = new EditText(NewTableActivity.this); 
titleText.setHint(R.string.title); 

builder.setView(titleText); 
builder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener(){ 
    @Override 
    public void onClick(DialogInterface dialogInterface, int i){ 
     dialogInterface.cancel(); 
    } 
}); 
builder.setPositiveButton(R.string.ok, null); 
final AlertDialog alertDialog = builder.create(); 
alertDialog.setOnShowListener(new DialogInterface.OnShowListener(){ 
    @Override 
    public void onShow(DialogInterface dialogInterface){ 
     Log.i("TEst", "Doung"); 
     Button button = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE); 
    } 
} 

對話框打開低一點（這個工程太），但日誌從未被稱爲

Answer 1

AlertDialog.Builder builder = new AlertDialog.Builder(NewTableActivity.this); 
builder.setTitle(R.string.addComponent); 

final EditText titleText = new EditText(NewTableActivity.this); 
titleText.setHint(R.string.title); 

builder.setView(titleText); 
builder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { 
    @Override 
    public void onClick(DialogInterface dialogInterface, int i) { 
     dialogInterface.cancel(); 
    } 
}); 
builder.setPositiveButton(R.string.ok, null); 
final AlertDialog alertDialog = builder.create(); 
alertDialog.setOnShowListener(new DialogInterface.OnShowListener() { 
    @Override 
    public void onShow(DialogInterface dialogInterface) { 
     Log.e("TEst", "Doung"); 
     Button button = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE); 
    } 
}); 

alertDialog.show();