Unity检查按钮是否为空并将其隐藏

Question

Hello. Im making a quiz game and I need you help.
Im getting questions and answers from server and I display them in game like this:

    questionText.text = results.Result[0].question;
    button1Text.text = results.Result[0].answer1;
    button2Text.text = results.Result[0].answer2;
    button3Text.text = results.Result[0].answer3;
    button4Text.text = results.Result[0].answer4c;

For some questions I have only 2 answers, and then 2 buttons are left empty, looks something like this
I need to make some kind of checker for buttons, if button is empty it gets hidden, but if there is something in button it gets shown.
Thanks!

Answer 1

You could use string.IsNullOrEmpty to check if the answer is empty, for example like this:

questionText.text = results.Result[0].question;
button1Text.text = results.Result[0].answer1;
button2Text.text = results.Result[0].answer2;
button3Text.text = results.Result[0].answer3;
button4Text.text = results.Result[0].answer4c;

// Hide buttons if empty. So we invert the isNullOrEmpty (when it's true -> we do not want to show the button!)
// As corrected below by @dohavin. We take the parent of the text object, assuming that is the actual button object.
button1Text.transform.parent.gameObject.setActive(!string.IsNullOrEmpty(results.Result[0].answer1));
button2Text.transform.parent.gameObject.setActive(!string.IsNullOrEmpty(results.Result[0].answer2));
button3Text.transform.parent.gameObject.setActive(!string.IsNullOrEmpty(results.Result[0].answer3));
button4Text.transform.parent.gameObject.setActive(!string.IsNullOrEmpty(results.Result[0].answer4c));