错误CS1061：“ Button.ButtonClickedEvent”不包含“ SetListener”的定义

Question

嗨，这段代码有什么问题？尝试在我的项目上添加mininap缩放。使用此代码。按钮导致我出现问题。这个问题有什么解决办法吗？

public class UIMinimap : MonoBehaviour
{
    public GameObject panel;
    public float zoomMin = 5;
    public float zoomMax = 50;
    public float zoomStepSize = 5;
   // public Text sceneText;
    public Button plusButton;
    public Button minusButton;
    public Camera minimapCamera;

    void Start()
    {
        plusButton.onClick.SetListener(() => {
            minimapCamera.orthographicSize = 
 Mathf.Max(minimapCamera.orthographicSize - zoomStepSize, zoomMin);
        });
        minusButton.onClick.SetListener(() => {
            minimapCamera.orthographicSize = 
 Mathf.Min(minimapCamera.orthographicSize + zoomStepSize, zoomMax);

        });
    }
}

Answer 1

我不知道您从何处SetListener，正确的语法是AddListener，如API所示：

plusButton.onClick.AddListener(() => {
  minimapCamera.orthographicSize = Mathf.Max(minimapCamera.orthographicSize - zoomStepSize, zoomMin);
});