我有一些代码可以设置文本元素的自定义宽度，然后高度会自动调整，如下所示：
Title.SetTextContainerSize("autoH", 330);
public void SetTextContainerSize(string fit, float dimension = 0)
{
if (UIElement.GetComponent<ContentSizeFitter>() == null)
UISizeFitterComponent = UIElement.AddComponent(typeof(ContentSizeFitter)) as ContentSizeFitter;
if (fit == "autoWH")
{
UISizeFitterComponent.horizontalFit = ContentSizeFitter.FitMode.PreferredSize;
UISizeFitterComponent.verticalFit = ContentSizeFitter.FitMode.PreferredSize;
base.SetDimensions( RectOptions.sizeDelta);
}
else if (fit == "autoW")
{
UISizeFitterComponent.horizontalFit = ContentSizeFitter.FitMode.PreferredSize;
base.SetDimensions( new Vector2(RectOptions.rect.width, dimension));
}
else if (fit == "autoH")
{ //here is a problem..
UISizeFitterComponent.verticalFit = ContentSizeFitter.FitMode.PreferredSize;
Canvas.ForceUpdateCanvases();
Debug.Log(new Vector2(dimension, RectOptions.rect.height));
base.SetDimensions( new Vector2(dimension, RectOptions.rect.height));
}
}
编辑 添加了设置尺寸的功能
public void SetDimensions(Vector2 dimensions)
{
RectOptions.sizeDelta = dimensions;
Dimensions = dimensions; //this just sets the value of a property.
}
但是当我调用更新文本的函数时，从
Debug.Log()中得到以下结果，它说宽度=330，而高度是2077。在这种情况下，宽度是正确的，但是高度完全不对。请看这里实际元素和其正确高度的截图。
编辑2 我的Unity版本是2018.1.3f1当更新元素的实际高度时，我做错了什么？
如果有完全不同的方法可以做到这一点，我也可以接受对当前函数进行完全重写，如果需要的话 :)
如果有什么不清楚的地方，请让我知道，以便我可以澄清！ 编辑3 我决定添加使用该函数的类的全部代码和调用各自函数的代码，也许存在导致错误的问题：
这是调用有问题的函数的代码：
var Title = new EasyText(new Vector2(390, -20), Vector2.zero, Data.title, 30, _color: new Color(0,0,0,1));
Title.SetTextContainerSize("autoH", 330);
Main.MainCanvas.Add(Title);
var titleBottom = (Title.Dimensions.y);
Debug.Log(titleBottom);
这是以上代码调用的类：
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;
using System.Collections.Generic;
namespace Easy.UI
{
public static class EasyUISettings
{
public struct AnchorPoints
{
public static readonly Vector2 TopLeft = new Vector2(0, 1);
public static readonly Vector2 Center = new Vector2(0.5f, 0.5f);
public static readonly Vector2 CenterLeft = new Vector2(0, 0.5f);
public static readonly Vector2 CenterRight = new Vector2(1, 0.5f);
public static readonly Vector2 TopCenter = new Vector2(0.5f, 1);
public static readonly Vector2 BottomCenter = new Vector2(0.5f, 0);
}
public struct CoordinateReference
{
private CoordinateReference(int minX, int maxX, int minY, int maxY)
{
AnchorMin = new Vector2(minX, minY);
AnchorMax = new Vector2(maxX, maxY);
}
public Vector2 AnchorMin { get; set; }
public Vector2 AnchorMax { get; set; }
public static readonly CoordinateReference TopLeft = new CoordinateReference(0, 0, 1, 1);
public static readonly CoordinateReference TopRight = new CoordinateReference(1, 1, 1, 1);
public static readonly CoordinateReference BottomLeft = new CoordinateReference(0, 0, 0, 0);
public static readonly CoordinateReference BottomRight = new CoordinateReference(1, 1, 0, 0);
}
public struct TextAlignment
{
public static readonly TextAnchor TopLeft = TextAnchor.UpperLeft;
public static readonly TextAnchor TopRight = TextAnchor.UpperRight;
public static readonly TextAnchor TopCenter = TextAnchor.UpperCenter;
public static readonly TextAnchor CenterLeft = TextAnchor.MiddleLeft;
public static readonly TextAnchor CenterRight = TextAnchor.MiddleRight;
public static readonly TextAnchor CenterCenter = TextAnchor.MiddleCenter;
public static readonly TextAnchor BottomLeft = TextAnchor.LowerLeft;
public static readonly TextAnchor BottomCenter = TextAnchor.LowerCenter;
public static readonly TextAnchor BottomRight = TextAnchor.LowerRight;
}
}
public static class EasyUIHelpers
{
public static void DestroyUIElement(EasyUIELementFoundation element)
{
element.DestroyUIElement();
element = null;
}
}
public class EasyCanvas
{
private GameObject CanvasObject, Events;
private RectTransform Rect;
private Canvas CanvasScript;
private CanvasScaler Scaler;
private GraphicRaycaster Raycaster;
private StandaloneInputModule Inputs;
private List<EasyUIELementFoundation> CanvasElements;
public EasyCanvas()
{
CanvasElements = new List<EasyUIELementFoundation>();
CanvasObject = new GameObject();
CanvasObject.name = "EasyCanvas";
Rect = CanvasObject.AddComponent(typeof(RectTransform)) as RectTransform;
CanvasScript = CanvasObject.AddComponent(typeof(Canvas)) as Canvas;
Scaler = CanvasObject.AddComponent(typeof(CanvasScaler)) as CanvasScaler;
Raycaster = CanvasObject.AddComponent(typeof(GraphicRaycaster)) as GraphicRaycaster;
CanvasScript.pixelPerfect = true;
Events = new GameObject();
Events.name = "EasyEventsHandler";
Events.AddComponent(typeof(EventSystem));
Inputs = Events.AddComponent(typeof(StandaloneInputModule)) as StandaloneInputModule;
}
public EasyCanvas(string _type, Camera c) : this()
{
CanvasScript.worldCamera = c;
CanvasScript.planeDistance = 0.15f;
if (_type.Equals("Camera"))
{
CanvasScript.renderMode = RenderMode.ScreenSpaceCamera;
Scaler.uiScaleMode = CanvasScaler.ScaleMode.ScaleWithScreenSize;
Scaler.referenceResolution = new Vector2(1920, 1080);
Scaler.screenMatchMode = CanvasScaler.ScreenMatchMode.MatchWidthOrHeight;
}
else if(_type.Equals("World"))
CanvasScript.renderMode = RenderMode.WorldSpace;
}
public void Add(EasyUIELementFoundation element)
{
element.AddToCanvas(CanvasScript);
CanvasElements.Add(element);
}
public void EmptyCanvas()
{
for (int i = CanvasElements.Count - 1; i >= 0 ; i--)
{
CanvasElements[i].DestroyUIElement();
CanvasElements[i] = null;
CanvasElements.RemoveAt(i);
}
}
public Vector2 GetCanvasDimensions()
{
return Rect.sizeDelta;
}
}
public abstract class EasyUIELementFoundation
{
protected GameObject UIElement;
protected RectTransform RectOptions;
public Vector2 Position { get; private set; }
public Vector2 Dimensions { get; private set; }
public Vector2 PivotPoint { get; private set; }
public EasyUISettings.CoordinateReference ReferenceCoordinates { get; private set; }
protected EasyUIELementFoundation(Vector2 _position, Vector2 _dimensions)
{
UIElement = new GameObject();
RectOptions = UIElement.AddComponent(typeof(RectTransform)) as RectTransform;
SetPivotReference(EasyUISettings.AnchorPoints.TopLeft);
SetCoordinateReference(EasyUISettings.CoordinateReference.TopLeft);
SetPosition(_position);
SetDimensions(_dimensions);
}
public void SetCoordinateReference(EasyUISettings.CoordinateReference reference)
{
RectOptions.anchorMin = reference.AnchorMin;
RectOptions.anchorMax = reference.AnchorMax;
ReferenceCoordinates = reference;
}
public void SetPivotReference(Vector2 reference)
{
RectOptions.pivot = reference;
PivotPoint = reference;
}
public void SetPosition(Vector2 pos)
{
RectOptions.anchoredPosition = pos;
Position = pos;
}
public void SetDimensions(Vector2 dimensions)
{
RectOptions.sizeDelta = dimensions;
Dimensions = dimensions;
}
public void AddToCanvas(Canvas c)
{
UIElement.transform.SetParent(c.transform, false);
}
public void DestroyUIElement()
{
Object.Destroy(UIElement);
}
}
public class EasyText : EasyUIELementFoundation
{
protected ContentSizeFitter UISizeFitterComponent;
protected Text UITextComponent;
public string Text { get; private set; }
public Color TextColor { get; private set; }
public Font TextFont { get; private set; }
public int FontSize { get; private set; }
public TextAnchor TextAlignment { get; private set; }
public EasyText(Vector2 _position = default(Vector2), Vector2 _dimensions = default(Vector2), string _text = "Base Text", int _fontSize = 15, Font _font = null, Color _color = default(Color), TextAnchor _align = default(TextAnchor)) : base(_position, _dimensions)
{
UITextComponent = UIElement.AddComponent(typeof(Text)) as Text;
SetText(_text);
SetTextSize(_fontSize);
SetFont(_font);
SetTextColor(_color);
SetTextAlignment(_align);
}
public void SetText(string text)
{
Text = text;
UITextComponent.text = Text;
}
public void SetTextSize(int size)
{
FontSize = size;
UITextComponent.fontSize = size;
}
public void SetFont(UnityEngine.Object font)
{
var ValidFont = (Font)font;
if(ValidFont != null)
{
TextFont = ValidFont;
UITextComponent.font = TextFont;
}
else
{
TextFont = Resources.GetBuiltinResource(typeof(Font), "Arial.ttf") as Font;
UITextComponent.font = TextFont;
Debug.LogWarning("No font was specified using default font");
}
}
public void SetTextColor(Color color)
{
TextColor = color;
UITextComponent.color = TextColor;
}
public void SetTextAlignment(TextAnchor alignment)
{
TextAlignment = alignment;
UITextComponent.alignment = alignment;
}
public void SetTextContainerSize(string fit, float dimension = 0)
{
if (UIElement.GetComponent<ContentSizeFitter>() == null)
UISizeFitterComponent = UIElement.AddComponent(typeof(ContentSizeFitter)) as ContentSizeFitter;
if (fit == "autoWH")
{
UISizeFitterComponent.horizontalFit = ContentSizeFitter.FitMode.PreferredSize;
UISizeFitterComponent.verticalFit = ContentSizeFitter.FitMode.PreferredSize;
base.SetDimensions( RectOptions.sizeDelta);
}
else if (fit == "autoW")
{
UISizeFitterComponent.horizontalFit = ContentSizeFitter.FitMode.PreferredSize;
UISizeFitterComponent.verticalFit = ContentSizeFitter.FitMode.Unconstrained;
base.SetDimensions( new Vector2(RectOptions.rect.width, dimension));
}
else if (fit == "autoH")
{
UISizeFitterComponent.horizontalFit = ContentSizeFitter.FitMode.Unconstrained;
UISizeFitterComponent.verticalFit = ContentSizeFitter.FitMode.PreferredSize;
// THIS NEEDS A FIX OMG
// LayoutRebuilder.ForceRebuildLayoutImmediate(RectOptions);
Canvas.ForceUpdateCanvases();
UISizeFitterComponent.SetLayoutVertical();
base.SetDimensions( new Vector2(dimension, RectOptions.rect.height));
}
}
public void RemoveContentSizeFitter()
{
var component = UIElement.GetComponent(typeof(ContentSizeFitter)) as ContentSizeFitter;
if(component != null)
Object.Destroy(component);
}
}
}