Input.touches

Description

返回表示上一帧中所有触摸状态的对象列表。（只读）（分配临时变量）。

每个条目代表手指触摸屏幕的状态。

using UnityEngine;

public class Example : MonoBehaviour
{
    // Prints number of fingers touching the screen
    void Update()
    {
        var fingerCount = 0;
        foreach (Touch touch in Input.touches)
        {
            if (touch.phase != TouchPhase.Ended && touch.phase != TouchPhase.Canceled)
            {
                fingerCount++;
            }
        }
        if (fingerCount > 0)
        {
            print("User has " + fingerCount + " finger(s) touching the screen");
        }
    }
}