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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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| | | using UnityEngine.EventSystems; |
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| | | |
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| | | //控制目标的最大最小尺寸 |
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| | | [ExecuteAlways] |
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| | | public class LayoutElementSizeClamp : LayoutElement |
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| | | { |
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| | | |
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| | | [SerializeField] RectTransform m_Target; |
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| | | |
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| | | Vector2 targetSizeRef = Vector2.zero; |
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| | | |
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| | | private void LateUpdate() |
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| | | protected override void OnEnable() |
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| | | { |
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| | | base.OnEnable(); |
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| | | if (clampEnable && m_Target != null) |
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| | | { |
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| | | if (targetSizeRef != m_Target.sizeDelta) |
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| | | { |
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| | | preferredHeight = Mathf.Clamp(m_Target.rect.height, m_Clamp.minY, m_Clamp.maxY); |
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| | | preferredWidth = Mathf.Clamp(m_Target.rect.width, m_Clamp.minX, m_Clamp.maxX); |
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| | | targetSizeRef = new Vector2(preferredWidth, preferredHeight); |
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| | | } |
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| | | UpdateRect().Forget(); |
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| | | } |
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| | | |
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| | | } |
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| | | |
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| | | async UniTask UpdateRect() |
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| | | { |
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| | | await UniTask.DelayFrame(1); |
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| | | preferredHeight = -1; |
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| | | preferredWidth = -1; |
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| | | //频繁调用ForceRebuildLayoutImmediate的原因是 |
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| | | // 如Text要自适应宽高又要限制宽高, 先要处理宽度刷新后才能计算换行 |
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| | | // 强制重新计算布局 |
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| | | LayoutRebuilder.ForceRebuildLayoutImmediate(transform.parent as RectTransform); |
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| | | preferredWidth = Mathf.Clamp(m_Target.rect.width, m_Clamp.minX, m_Clamp.maxX); |
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| | | // 强制重新计算布局 |
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| | | LayoutRebuilder.ForceRebuildLayoutImmediate(transform.parent as RectTransform); |
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| | | preferredHeight = Mathf.Clamp(m_Target.rect.height, m_Clamp.minY, m_Clamp.maxY); |
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| | | |
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| | | } |
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| | | |
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| | | |
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| | | [System.Serializable] |
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| | | public struct Clamp |
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| | | { |
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