//--------------------------------------------------------
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// [Author]: 玩个游戏
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// [ Date ]: Saturday, October 07, 2017
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//--------------------------------------------------------
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using Cysharp.Threading.Tasks;
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using UnityEngine;
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using UnityEngine.UI;
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public class ScrollTipWin : UIBase
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{
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[SerializeField] RectTransform content;
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[SerializeField] RectTransform mask;
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[SerializeField, Header("显示条数")]
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int tipDisplayCnt = 3;
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[SerializeField, Header("每次滚动的距离")]
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float m_TipDistance = 50.0f;
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[SerializeField, Header("提示预制体高度")]
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float m_TipHeight = 40.0f;
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[SerializeField, Header("显示时间")]
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float m_TipShowTime = 1.0f;
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[SerializeField, Header("移动时间")]
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float m_TipMoveTime = 0.2f;
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[SerializeField, Header("隐藏时间")]
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float m_TipHideTime = 0.5f;
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bool isLoopRunning = false;
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protected override void InitComponent()
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{
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}
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protected override void OnClose()
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{
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}
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protected override void OnOpen()
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{
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}
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protected override void OnPreClose()
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{
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ScrollTip.OnTipReceiveEvent -= OnAddTipEvent;
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ScrollTip.ReleaseAll();
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}
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protected override void OnPreOpen()
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{
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ScrollTip.tipMoveTime = m_TipMoveTime;
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ScrollTip.OnTipReceiveEvent += OnAddTipEvent;
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mask.sizeDelta = mask.sizeDelta.SetY(tipDisplayCnt * m_TipHeight + (tipDisplayCnt - 1) * (m_TipDistance - m_TipHeight) + 10);
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// 如果有待处理的提示，立即启动循环
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if (ScrollTip.m_Hints.Count > 0)
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{
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LoopTipReceiveEvent().Forget();
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}
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}
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async UniTask LoopTipReceiveEvent()
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{
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if (isLoopRunning) return; // 防止重复启动
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isLoopRunning = true;
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try
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{
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while (ScrollTip.m_Hints.Count > 0)
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{
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OnTipReceiveEvent().Forget();
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await UniTask.Delay(100);
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if (this == null) return; // destroyed during await
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}
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}
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finally
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{
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isLoopRunning = false;
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}
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}
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void OnAddTipEvent()
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{
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// 只有在没有循环运行时才启动新的循环
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if (!isLoopRunning)
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{
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LoopTipReceiveEvent().Forget();
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}
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}
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private async UniTask OnTipReceiveEvent()
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{
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if (ScrollTip.m_Hints.Count > 0 && IsCanAdd())
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{
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if (ScrollTip.m_ActiveTips.Count >= tipDisplayCnt)
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{
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ScrollTip.Release(ScrollTip.m_ActiveTips[0], false);
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ScrollTip.tipMoveTime = Time.deltaTime;
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}
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else
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{
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ScrollTip.tipMoveTime = m_TipMoveTime;
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}
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// for (int i = 0; i < ScrollTip.m_ActiveTips.Count; i++)
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// {
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// ScrollTip.m_ActiveTips[i].Play(ScrollTip.ScrollTipState.Move);
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// }
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ScrollTipDetail tipDetail = await ScrollTip.Request();
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if (tipDetail != null)
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{
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// 首次登录时 pool 为 null，Request() 异步加载预制体耗时 >100ms。
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// LoopTipReceiveEvent 每 100ms 重入，可能已有另一次调用先消耗了 m_Hints[0]。
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// 若 await 返回时 m_Hints 已空，必须将 tipDetail 归还池，否则它会被插入 Canvas 但
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// 永远不会播放动画，导致提示条卡在屏幕上（第一次登录复现的根因）。
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if (ScrollTip.m_Hints.Count == 0)
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{
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ScrollTip.Release(tipDetail, false);
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return;
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}
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tipDetail.SetTipConfig(m_TipShowTime, m_TipHideTime, m_TipDistance);
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ScrollTip.m_ActiveTips.Add(tipDetail);
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var rt = tipDetail.transform;
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rt.SetParent(content.parent);
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rt.localScale = Vector3.one;
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rt.localPosition = content.localPosition;
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var _hint = ScrollTip.m_Hints[0];
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ScrollTip.m_Hints.RemoveAt(0);
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tipDetail.ShowTip(_hint);
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tipDetail.Play(ScrollTip.ScrollTipState.Move);
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}
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}
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}
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private bool IsCanAdd()
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{
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// for (int i = 0; i < ScrollTip.m_ActiveTips.Count; i++)
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// {
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// if (ScrollTip.m_ActiveTips[i].presentState == ScrollTip.ScrollTipState.Move)
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// {
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// return false;
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// }
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// }
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return true;
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}
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}
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