UnityUGUI-打字機效果實現

UGUI打字機效果實現核心就是使用String.Substring();方法進行截取顯示。可以使用time進行控制用Times.deltaTime或者直接用InvokeRepeating()方法重複執行。

打字機效果第一種實現方式：

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

public class UItext : MonoBehaviour {
    string str = "君不見黃河之水天上來，奔流到海不復回，君不見";
    int I = 0;
    public Text text;
	// Use this for initialization
	void Start () {
        InvokeRepeating("ShowText",0,0.5f);
	}
	
	// Update is called once per frame
	void Update () {
		
	}
    void ShowText()
    {
        
        if (I >= str.Length)
        {
            return;
        }
        else { 
        I += 1;
        text.text = str.Substring(0,I);
            text.color = Color.blue;
        }
    }
}

第二種實現方式；

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
 
public class TextTween : MonoBehaviour {
	Text m_text;
	string TextString;
	float Timer=0f;
 
 
	bool isFinish;
	public float Speed=2f;
	// Use this for initialization
	void Start () 
	{	m_text = GetComponent<Text> ();
		
		TextString = m_text.text;
 
		m_text.text = "";
		
	}
	
	// Update is called once per frame
	void Update () {
		if (m_text.text.Equals (TextString)) {
			isFinish = true;
			//字體播放結束 finish  執行 Finsh 
		} 
		else
		{
			m_text.text = TextString.Substring (0, (int)(Timer * Speed));
			Timer += Time.deltaTime;
		}
 
		
	}
}