TianJin_23/Assets/Scripts/lineLengthShow.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using AX.MessageSystem;
using UnityEngine.UI;

public class lineLengthShow : MonoBehaviour {

	// Use this for initialization
	void Start ()
    {
        MessageDispatcher.AddListener("SHOW_LINELENGTH", open);
        MessageDispatcher.AddListener("CLOSE_LINELENGTH", Close);
        gameObject.SetActive(false);
    }
	
	// Update is called once per frame
	void Update () {
		
	}
    void open(IMessage message)
    {
        GameObject line = (GameObject)message.Data;
        float lineLength = line.transform.parent.GetComponent<lineParentMessage>().lineLength;
        gameObject.SetActive(true);
        gameObject.transform.Find("Text").GetComponent<Text>().text = lineLength.ToString("0.0")+"米";


    }

    void Close(IMessage message)
    {
       gameObject.SetActive(false);             
    }

    void OnDestroy()
    {
        MessageDispatcher.RemoveListener("SHOW_LINELENGTH", open);
        MessageDispatcher.RemoveListener("CLOSE_LINELENGTH", Close);
    }
}