70 lines
2.3 KiB
C#
70 lines
2.3 KiB
C#
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using DG.Tweening;
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using UnityEngine;
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using UnityEngine.UI;
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public class ScrollViewNevigation : MonoBehaviour
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{
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public ScrollRect scrollRect;
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public RectTransform viewport;
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public RectTransform content;
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void Start()
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{
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Init();
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}
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private void Init()
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{
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if (scrollRect == null)
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{
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scrollRect = this.GetComponent<ScrollRect>();
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}
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if (viewport == null)
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{
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viewport = this.transform.Find("Viewport").GetComponent<RectTransform>();
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}
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if (content == null)
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{
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content = this.transform.Find("Viewport/Content").GetComponent<RectTransform>();
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}
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}
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public void Nevigate(RectTransform item)
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{
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if (item == null) return;
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Vector3 itemCurrentLocalPostion = scrollRect.GetComponent<RectTransform>().InverseTransformVector(ConvertLocalPosToWorldPos(item));
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Vector3 itemTargetLocalPos = scrollRect.GetComponent<RectTransform>().InverseTransformVector(ConvertLocalPosToWorldPos(viewport));
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Vector3 diff = itemTargetLocalPos - itemCurrentLocalPostion;
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diff.z = 0.0f;
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var newNormalizedPosition = new Vector2(
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diff.x / (content.GetComponent<RectTransform>().rect.width - viewport.rect.width),
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diff.y / (content.GetComponent<RectTransform>().rect.height - viewport.rect.height)
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);
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newNormalizedPosition = scrollRect.GetComponent<ScrollRect>().normalizedPosition - newNormalizedPosition;
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newNormalizedPosition.x = Mathf.Clamp01(newNormalizedPosition.x);
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newNormalizedPosition.y = Mathf.Clamp01(newNormalizedPosition.y);
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//<2F><>DOTweenʱʹ<CAB1><CAB9>
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DOTween.To(() => scrollRect.GetComponent<ScrollRect>().normalizedPosition, x => scrollRect.GetComponent<ScrollRect>().normalizedPosition = x, newNormalizedPosition, 0.8f);
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//<2F><>DOTweenʱʹ<CAB1><CAB9>
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//scrollRect.GetComponent<ScrollRect>().normalizedPosition = newNormalizedPosition;
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}
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private Vector3 ConvertLocalPosToWorldPos(RectTransform target)
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{
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var pivotOffset = new Vector3(
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(0.5f - target.pivot.x) * target.rect.size.x,
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(0.5f - target.pivot.y) * target.rect.size.y,
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0f);
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var localPosition = target.localPosition + pivotOffset;
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return target.parent.TransformPoint(localPosition);
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}
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}
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