using System;
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using System.Collections.Generic;
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using System.Text;
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namespace Shared.Phone
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{
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/// <summary>
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/// 做成一个里面只装FrameLayout的列表型控件(它不会调整高度,有桌布)
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/// </summary>
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public class VerticalFrameControl : VerticalScrolViewLayout
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{
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#region ■ 变量声明___________________________
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/// <summary>
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/// 行之间的间距
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/// </summary>
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public int rowSpace = 0;
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/// <summary>
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/// 桌布控件
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/// </summary>
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private NormalFrameLayout m_frameTable = null;
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/// <summary>
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/// 桌布控件(这个东西不能删，因为有些界面需要他的桌布)
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/// </summary>
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public NormalFrameLayout frameTable
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{
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get
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{
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if (m_frameTable == null) { this.InitFrameTable(); }
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return m_frameTable;
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}
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}
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/// <summary>
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/// 一个临时的东西
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/// </summary>
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private FrameLayout frameBackTemp = null;
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#endregion
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#region ■ 初始化_____________________________
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/// <summary>
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/// 做成一个列表型的FrameLayout(它不会调整高度)
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/// </summary>
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/// <param name="i_rowSpace">行之间的间距(这个值是与行控件绑定一起使用的)</param>
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public VerticalFrameControl(int i_rowSpace = 0)
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{
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rowSpace = Application.GetRealHeight(i_rowSpace);
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#if iOS
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//自动偏移取消
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if (UIKit.UIDevice.CurrentDevice.CheckSystemVersion(11, 0))
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{
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(this.uiView as UIKit.UIScrollView).ContentInsetAdjustmentBehavior = UIKit.UIScrollViewContentInsetAdjustmentBehavior.Never;
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}
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#endif
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}
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/// <summary>
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/// 初始化桌布控件
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/// </summary>
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private void InitFrameTable()
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{
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if (this.m_frameTable != null && this.m_frameTable.Parent != null)
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{
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return;
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}
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this.m_frameTable = new NormalFrameLayout();
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this.m_frameTable.Width = this.Width;
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this.m_frameTable.Height = this.Height;
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base.AddChidren(this.m_frameTable);
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}
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#endregion
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#region ■ 添加子控件_________________________
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/// <summary>
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/// 添加Frame子控件(注意,它是往下加控件,只会改变坐标,桌布大小会增加)
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/// </summary>
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/// <param name="view"></param>
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public override void AddChidren(View view)
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{
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//初始化桌布控件
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this.InitFrameTable();
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//获取坐标底部最下面的那个控件的底部坐标
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int value = this.GetLocationMostLastViewBottom(this.frameTable);
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if (value != -1)
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{
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view.Y = value + rowSpace;
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}
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this.frameTable.AddChidren(view);
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//调整桌布高度
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if (this.frameTable.Height < view.Bottom)
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{
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this.frameTable.Height = view.Bottom;
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}
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}
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#endregion
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#region ■ 一般方法___________________________
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/// <summary>
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/// 调整子FrameLayout的高度(只扩大,不缩小)
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/// </summary>
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/// <param name="frame"></param>
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/// <param name="buttomSpace">底部空白间距(真实值)</param>
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public void AdjustChidrenFrameHeight(FrameLayout frame, int buttomSpace)
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{
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//获取坐标底部最下面的那个控件的底部坐标
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int value = this.GetLocationMostLastViewBottom(frame);
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if (value != -1)
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{
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//调整桌布高度
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if (frame.Height < value + buttomSpace)
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{
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frame.Height = value + buttomSpace;
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}
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}
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}
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/// <summary>
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/// 调整子FrameLayout的真实高度
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/// </summary>
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/// <param name="frame"></param>
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/// <param name="minHeight">最小高度</param>
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public void AdjustChidrenFrameRealHeight(FrameLayout frame, int minHeight = -1)
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{
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//获取坐标底部最下面的那个控件的底部坐标
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int value = this.GetLocationMostLastViewBottom(frame);
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if (minHeight != -1 && value < minHeight)
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{
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//没有超过最小高度
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return;
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}
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if (value != -1)
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{
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//调整桌布高度
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frame.Height = value;
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}
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}
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/// <summary>
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/// 调整桌布高度
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/// </summary>
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public void AdjustTableHeight()
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{
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//2020.05.25追加
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if (this.frameBackTemp != null && this.frameBackTemp.Parent != null)
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{
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this.frameBackTemp.RemoveFromParent();
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}
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//获取坐标底部最下面的那个控件的底部坐标
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int value = this.GetLocationMostLastViewBottom(this.frameTable);
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if (value != -1)
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{
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//调整桌布高度
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this.frameTable.Height = value;
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}
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else
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{
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//还原为原来的高度
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this.RecoverTableHeight();
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}
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}
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/// <summary>
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/// 针对底部点击按钮,调整控件真实高度
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/// </summary>
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/// <param name="correctionsValue">
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/// <para>Y轴补正值(真实值,列表控件不在bodyFramelayout的时候使用)</para>
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/// <para>一般为正数,如果为负数代表bodyFramelayout超出了顶部</para>
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/// </param>
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public void AdjustRealHeightByBottomButton(int correctionsValue = 0)
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{
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//调整桌布高度 2020.05.25追加
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this.AdjustTableHeight();
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var btnTemp = new BottomClickButton();
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if (btnTemp.Yaxis >= this.frameTable.Height + correctionsValue)
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{
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//没有超过
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return;
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}
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//添加临时控件,直至可以滑动超过底部按钮
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int oldRowSpace = this.rowSpace;
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this.rowSpace = 0;
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this.frameBackTemp = new FrameLayout();
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frameBackTemp.Height = HdlControlResourse.BodyFrameHeight - btnTemp.Yaxis + Application.GetRealHeight(23);
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this.AddChidren(frameBackTemp);
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this.rowSpace = oldRowSpace;
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}
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/// <summary>
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/// 还原桌布高度
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/// </summary>
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public void RecoverTableHeight()
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{
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if (this.m_frameTable != null)
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{
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m_frameTable.Height = this.Height;
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}
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}
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/// <summary>
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/// 获取坐标底部最下面的那个控件的底部坐标
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/// </summary>
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/// <returns></returns>
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private int GetLocationMostLastViewBottom(FrameLayout frame)
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{
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int bottomHeight = -1;
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if (frame == null) { return bottomHeight; }
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for (int i = 0; i < frame.ChildrenCount; i++)
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{
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var child = frame.GetChildren(i);
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if (child.Bottom > bottomHeight)
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{
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bottomHeight = child.Bottom;
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}
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}
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return bottomHeight;
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}
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#endregion
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}
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}
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