You check twice  if (isPositiveEnabled) and  if (isNegativeEnabled). Coulnd't you write:
if (isPositiveEnabled) {
     positive = (Button) v.findViewById(R.id.buttonDialogPositive);
     positive.setText(buttonPositive);
     positive.setOnClickListener(new ButtonOnClickToDialogOnClickAdapter(buttonPositiveListener, POSITIVE_BUTTON));
 }
if (isNegativeEnabled) { ... }

if (isPositiveEnabled && isNegativeEnabled) { ... }
else {...}