using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.Events;
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using UnityEngine.EventSystems;
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using UnityEngine.Serialization;
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using UnityEngine.UI;
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public class LongPressButton : ButtonEx
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{
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public class ButtonPressEvent : UnityEvent { }
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//长按监听
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[FormerlySerializedAs("onPress")]
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[SerializeField]
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private ButtonPressEvent m_OnPress = new ButtonPressEvent();
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public ButtonPressEvent onPress
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{
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get { return m_OnPress; }
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set { m_OnPress = value; }
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}
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[SerializeField]
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float m_LongPressCheckTime = 0.3f;
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public float longPressCheckTime
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{
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get { return m_LongPressCheckTime; }
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set { m_LongPressCheckTime = value; }
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}
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[SerializeField]
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float m_LongPressIntervalTime = 0.1f;
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public float longPressIntervalTime
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{
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get { return m_LongPressIntervalTime; }
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set { m_LongPressIntervalTime = value; }
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}
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float m_PressTime = 0.0f;
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float m_PressIntervalTime = 0.0f;
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bool m_LongPress = false;
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bool m_IsButtonDown = false;
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public override void OnPointerClick(PointerEventData eventData)
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{
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if (m_LongPress)
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{
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m_LongPress = false;
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return;
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}
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base.OnPointerClick(eventData);
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}
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public override void OnPointerDown(PointerEventData eventData)
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{
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base.OnPointerDown(eventData);
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m_PressTime = 0.0f;
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m_PressIntervalTime = 0.0f;
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m_IsButtonDown = true;
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}
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public override void OnPointerUp(PointerEventData eventData)
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{
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base.OnPointerUp(eventData);
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m_IsButtonDown = false;
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}
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public override void OnPointerExit(PointerEventData eventData)
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{
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base.OnPointerExit(eventData);
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m_IsButtonDown = false;
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m_LongPress = false;
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}
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private void Update()
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{
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if (m_IsButtonDown)
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{
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if (!this.interactable || !this.IsActive() || !this.enabled)
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{
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// 如果按钮不可用，则取消长按状态
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m_IsButtonDown = false;
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m_LongPress = false;
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return;
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}
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m_PressTime += Time.deltaTime;
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if (m_PressTime < m_LongPressCheckTime)
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{
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return;
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}
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if (m_PressIntervalTime >= m_LongPressIntervalTime)
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{
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onPress.Invoke();
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m_PressIntervalTime = 0.0f;
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}
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m_PressIntervalTime += Time.deltaTime;
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m_LongPress = true;
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}
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}
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protected override void OnEnable()
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{
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base.OnEnable();
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m_LongPress = false;
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m_IsButtonDown = false;
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}
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}
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