143 lines
4.2 KiB
C#
143 lines
4.2 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using A2W;
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using Cysharp.Threading.Tasks;
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using System.Linq;
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namespace A2W
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{
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public class UIManager : Singleton<UIManager>
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{
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public const string panel_prefabs_dir_path = "UIPanel/"; // UI面板预制体目录
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// 这里保存IUIPanel的list
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List<UIPanel> panels;
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private Canvas mainCanvas;
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private GameObject canvasObject;
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private string defaultPanelPath;
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public void Init(string defaultPanelPath = panel_prefabs_dir_path)
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{
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this.defaultPanelPath = defaultPanelPath;
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if (panels is null)
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{
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panels = new List<UIPanel>();
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}
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// 生成canvas
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CreateCanvas();
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}
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public void DestroyAllExceptLoading()
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{
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var panelsToRemove = panels.Where(panel => !(panel is ITransition)).ToList();
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foreach (var panel in panelsToRemove)
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{
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Destroy(panel.gameObject);
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panels.Remove(panel);
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}
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}
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private void CreateCanvas()
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{
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if (canvasObject is not null) return;
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canvasObject = new GameObject("UICanvas");
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canvasObject.transform.SetParent(transform, false);
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mainCanvas = canvasObject.AddComponent<Canvas>();
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mainCanvas.renderMode = RenderMode.ScreenSpaceOverlay;
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//mainCanvas.sortingOrder = 1000;
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UnityEngine.UI.CanvasScaler canvasScaler = canvasObject.AddComponent<UnityEngine.UI.CanvasScaler>();
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canvasScaler.uiScaleMode = UnityEngine.UI.CanvasScaler.ScaleMode.ScaleWithScreenSize;
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canvasScaler.referenceResolution = new Vector2(Screen.width, Screen.height);
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canvasObject.AddComponent<UnityEngine.UI.GraphicRaycaster>();
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}
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public async UniTask<T> InitPanel<T>() where T : UIPanel
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{
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// 在这里加载对应panel的预制体
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var perfab = await Resources.LoadAsync<T>(GetPanelPath<T>());
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T panel = (T)Instantiate(perfab);
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// 加载完了以后存在panels里
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if (panel != null)
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{
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panel.transform.SetParent(mainCanvas.transform, false);
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panels.Add(panel);
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panel.Init();
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}
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return panel;
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}
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public async UniTask<T> InitPanel<T>(string path) where T : UIPanel
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{
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// 在这里加载对应panel的预制体
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var perfab = await Resources.LoadAsync<T>(GetPanelPath<T>());
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T panel = (T)Instantiate(perfab);
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// 加载完了以后存在panels里
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if (panel != null)
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{
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panel.transform.SetParent(mainCanvas.transform, false);
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panels.Add(panel);
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panel.Init();
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}
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return panel;
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}
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public async UniTask<T> ShowPanel<T>() where T : UIPanel
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{
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// 先判断panels里有没有对应的panel，没有就先调用InitPanel
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T panel = GetPanel<T>();
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if (panel == null)
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{
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await InitPanel<T>();
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panel = GetPanel<T>();
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}
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// 播放Show动画 直接调用UIPanel的 public abstract UniTask Show();
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if (panel != null)
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{
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await panel.Show();
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}
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return panel;
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}
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public async UniTask<T> HidePanel<T>() where T : UIPanel
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{
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// 播放Hide动画 直接调用UIPanel的 public abstract UniTask Hide();
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T panel = GetPanel<T>();
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if (panel != null)
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{
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await panel.Hide();
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}
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// 后续会增加回收机制，资源紧张时释放不需要的panel
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return panel;
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}
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public T GetPanel<T>() where T : UIPanel
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{
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if (panels == null) return null;
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return panels.OfType<T>().FirstOrDefault();
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}
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private string GetPanelPath<T>() where T : UIPanel
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{
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return defaultPanelPath + typeof(T).Name; // 使用Name而不是ToString()获取更简洁的类型名
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}
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}
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} |