51 lines
1.3 KiB
C#
51 lines
1.3 KiB
C#
using UnityEngine;
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using UnityEngine.Events;
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using UnityEngine.EventSystems;
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public class LongPressOrClickTrigger : UIBehaviour, IPointerDownHandler, IPointerUpHandler
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{
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public UnityEvent onLongPress = new UnityEvent();
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public UnityEvent onDown = new UnityEvent();
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public UnityEvent onUp = new UnityEvent();
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private bool isPointerDown = false;
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private bool longPressTriggered = false;
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private float timePressStarted;
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/// <summary>指针在按钮上按下后至抬起前为 true；划出按钮区域不中断（与常见按住交互一致）。</summary>
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public bool IsPressing => isPointerDown;
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private void Update()
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{
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if (isPointerDown && !longPressTriggered)
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{
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if (Time.time - timePressStarted > 0.2f)
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{
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onLongPress.Invoke();
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longPressTriggered = true;
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}
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}
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}
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public void OnPointerDown(PointerEventData eventData)
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{
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timePressStarted = Time.time;
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isPointerDown = true;
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longPressTriggered = false;
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onDown.Invoke();
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}
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public void OnPointerUp(PointerEventData eventData)
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{
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isPointerDown = false;
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onUp.Invoke();
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}
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protected override void OnDisable()
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{
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base.OnDisable();
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isPointerDown = false;
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longPressTriggered = false;
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}
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}
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