程式小試身手

上網查了不少資料,一直看到說使用getButton

但一直出錯顯示沒有getButton這方法,那時才意識到自己使用的不是AlertDialog 是 Dialog (自訂義 繼承AlertDialog.Builder)

將類型改為AlertDialog並在show()之後設定按鈕事件即可

import android.support.v7.app.AlertDialog;

AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage("Test for preventing dialog close");
AlertDialog dialog = builder.create();
dialog.show();
//Overriding the handler immediately after show is probably a better approach than OnShowListener as described below
dialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(new View.OnClickListener()
      {            
          @Override
          public void onClick(View v)
          {
              Boolean wantToCloseDialog = false;
              //Do stuff, possibly set wantToCloseDialog to true then...
              if(wantToCloseDialog)
                  dismiss();
              //else dialog stays open. Make sure you have an obvious way to close the dialog especially if you set cancellable to false.
          }
      });