using System;
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using UIKit;
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using CoreGraphics;
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using Shared.IO;
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using Foundation;
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namespace Shared
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{
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/// <summary>
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/// 在滑动事件下，可显示隐藏些自定义视图
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/// </summary>
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public class RowLayout : ViewGroup
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{
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/// <summary>
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/// 右边的视图列表
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/// </summary>
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internal System.Collections.Generic.List<Button> leftView = new System.Collections.Generic.List<Button>();
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/// <summary>
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/// 右边的视图列表
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/// </summary>
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internal System.Collections.Generic.List<Button> rigthView = new System.Collections.Generic.List<Button>();
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/// <summary>
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/// 重新刷新控件
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/// </summary>
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public override void Refresh()
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{
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base.Refresh();
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}
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/// <summary>
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/// 控件宽度
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/// </summary>
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public override int Width
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{
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get
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{
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return base.Width;
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}
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set
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{
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base.Width = value;
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if (!IsCanRefresh)
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return;
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}
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}
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/// <summary>
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/// 子视图的宽度
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/// </summary>
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public int SubViewWidth = 70;
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/// <summary>
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/// 控件的高度
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/// </summary>
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/// <value>The height.</value>
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public override int Height
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{
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get
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{
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return base.Height;
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}
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set
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{
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base.Height = value;
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if (!IsCanRefresh)
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return;
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{
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var frame = realViewGroup.Frame;
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frame.Height = Height;
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realViewGroup.Frame = frame;
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}
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}
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}
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/// <summary>
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/// 增加左边视图
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/// </summary>
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/// <param name="view">View.</param>
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public void AddLeftView(Button view)
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{
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if (null == view)
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{
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return;
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}
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view.X = leftView.Count * SubViewWidth;
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view.Y = 0;
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view.Width = SubViewWidth;
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view.Height = Height;
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viewGroup.AddSubview(view.RealView);
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view.Parent = this;
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view.Refresh();
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leftView.Add(view);
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var frame = realViewGroup.Frame;
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frame.X += SubViewWidth;
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realViewGroup.Frame = frame;
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foreach (var right in rigthView)
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{
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right.X += SubViewWidth;
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}
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(viewGroup as UIScrollView).ContentSize = new CoreGraphics.CGSize((leftView.Count + rigthView.Count) * SubViewWidth + realViewGroup.Frame.Width, 0);
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(viewGroup as UIScrollView).SetContentOffset(new CGPoint(realViewGroup.Frame.X, 0), false);
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}
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internal override void removeChildParent()
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{
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foreach (var tempView in leftView)
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{
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tempView.Parent = null;
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}
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foreach (var tempView in rigthView)
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{
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tempView.Parent = null;
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}
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base.removeChildParent();
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}
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/// <summary>
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/// 增加右边视图
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/// </summary>
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/// <param name="view">View.</param>
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public void AddRightView(Button view)
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{
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if (null == view)
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{
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return;
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}
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view.X =(int)realViewGroup.Frame.Right+ rigthView.Count * SubViewWidth;
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view.Y = 0;
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view.Width = SubViewWidth;
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view.Height = Height;
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viewGroup.AddSubview(view.RealView);
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view.Parent = this;
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view.Refresh();
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rigthView.Add(view);
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(viewGroup as UIScrollView).ContentSize = new CoreGraphics.CGSize((leftView.Count + rigthView.Count) * SubViewWidth + realViewGroup.Frame.Width, 0);
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(viewGroup as UIScrollView).SetContentOffset(new CGPoint(realViewGroup.Frame.X, 0), false);
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}
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/// <summary>
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/// 在滑动事件下，可显示隐藏些自定义视图
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/// </summary>
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public RowLayout()
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{
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viewGroup = new UIScrollView { Bounces = false };
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realViewGroup = new MyRowLayout(this) { };
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viewGroup.AddSubview(realViewGroup);
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viewGroup.Layer.MasksToBounds = true;
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(viewGroup as UIScrollView).ShowsHorizontalScrollIndicator = false;//隐藏水平滚动条
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}
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/// <summary>
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/// 垂直方向滚动视图
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/// </summary>
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class MyRowLayout : UIView
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{
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[Weak] internal RowLayout rowLayout;
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public MyRowLayout(RowLayout rowLayout)
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{
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this.rowLayout = rowLayout;
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}
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/// <summary>
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/// 点击开始
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/// </summary>
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/// <param name="touches">Touches.</param>
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/// <param name="evt">Evt.</param>
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public override void TouchesBegan(NSSet touches, UIEvent evt)
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{
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rowLayout?.TouchEvent(EventActions.Down, (touches.AnyObject as UITouch).LocationInView(this));
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}
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/// <summary>
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/// 移动
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/// </summary>
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/// <param name="touches">Touches.</param>
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/// <param name="evt">Evt.</param>
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public override void TouchesMoved(NSSet touches, UIEvent evt)
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{
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rowLayout?.TouchEvent(EventActions.Move, (touches.AnyObject as UITouch).LocationInView(this));
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}
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/// <summary>
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/// 点击弹起
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/// </summary>
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/// <param name="touches">Touches.</param>
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/// <param name="evt">Evt.</param>
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public override void TouchesEnded(NSSet touches, UIEvent evt)
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{
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rowLayout?.TouchEvent(EventActions.Up, (touches.AnyObject as UITouch).LocationInView(this));
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}
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public override void TouchesCancelled(NSSet touches, UIEvent evt)
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{
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rowLayout?.TouchEvent(EventActions.Cancel, (touches.AnyObject as UITouch).LocationInView(this));
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}
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/// <summary>
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/// 框架默认加了两个UIImageView ，这样可以去掉默认添加
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/// </summary>
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/// <param name="view">View.</param>
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public override void AddSubview(UIView view)
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{
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if (view.GetType() == typeof(UIImageView) && view.Tag != int.MinValue)
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{
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return;
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}
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base.AddSubview(view);
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}
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}
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}
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}
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