Touch.rawPosition

描述

触摸触点在屏幕空间中的第一个位置（像素坐标）。

原始位置返回触摸触点的原始位置，并且在拖动触摸时不会改变。如果需要触摸的当前位置，请参阅 Touch.position。

屏幕或窗口的左下角坐标为 (0, 0)。屏幕或窗口的右上角坐标为 (Screen.width, Screen.height)。

// This script outputs the raw position of an active touch contact

// Attach this script to a GameObject
// Create a Text GameObject (GameObject>UI>Text)
// Attach the Text to the Text field in the Inspector window of your GameObject

using UnityEngine;
using UnityEngine.UI;

public class TouchRawPositionExample : MonoBehaviour
{
    public Text m_Text;

    void Update()
    {
        if (Input.touchCount > 0)
        {
            Touch touch = Input.GetTouch(0);

            // Update the Text on the screen depending on the raw position of the touch
            // NOTE: rawPosition doesn't change when the touch contact is dragged
            m_Text.text = "Raw Position : " + touch.rawPosition;
        }
        else
        {
            m_Text.text = "No touch contacts";
        }
    }
}