In general Android does not want developers creating alert dialogs that block the flow of code, but for those situations where it is needed, there is a way to force a dialog to wait. The approach essentially uses a handler to create a slightly more elegant version of a busy loop.

private boolean resultValue;
public boolean getDialogValueBack(Context context)
{
    final Handler handler = new Handler()
    {
        @Override
        public void handleMessage(Message mesg)
        {
            throw new RuntimeException();
        } 
    };

    AlertDialog.Builder alert = new AlertDialog.Builder(context);
    alert.setTitle("Title");
    alert.setMessage("Message");
    alert.setPositiveButton("Return True", new DialogInterface.OnClickListener()
    {
        public void onClick(DialogInterface dialog, int id)
        {
            resultValue = true;
            handler.sendMessage(handler.obtainMessage());
        }
    });
    alert.setNegativeButton("Return False", new DialogInterface.OnClickListener()
    {
        public void onClick(DialogInterface dialog, int id)
        {
            resultValue = false;
            handler.sendMessage(handler.obtainMessage());
        }
    });
    alert.show();

    try{ Looper.loop(); }
    catch(RuntimeException e){}

    return resultValue;
}