using System;
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using Shared;
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#if __IOS__
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using UIKit;
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using Foundation;
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#endif
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namespace HDL_ON.UI
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{
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/// <summary>
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/// TextButton
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/// 解决iOS 文本到边框有边距问题
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///
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/// </summary>
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public class TextButton : Button
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{
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public TextButton()
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{
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#if __IOS__
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//重写修改文本到边框的内边距为0
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(this.uiView as MyButton).ContentEdgeInsets = new UIEdgeInsets(0, 0, 0, 0);
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#endif
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}
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int _lineSpacing;
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/// <summary>
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/// 设置行间距
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/// </summary>
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public int LineSpacing
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{
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set
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{
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_lineSpacing = value;
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SetButtonLineSpacing(_lineSpacing);
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}
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}
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#if __IOS__
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/// <summary>
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/// 按钮设置行距方法
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/// </summary>
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/// <param name="spacing"></param>
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void SetButtonLineSpacing(int spacing)
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{
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UIStringAttributes stringAttributes = new UIStringAttributes
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{
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Font = (this.uiView as MyButton).TitleLabel.Font,
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ForegroundColor = UIColor.Black,
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ParagraphStyle = new NSMutableParagraphStyle() { LineSpacing = spacing }
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};
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var AttributedText = new NSMutableAttributedString(Text);
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AttributedText.AddAttributes(stringAttributes, new NSRange(0, Text.Length));
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(this.uiView as MyButton).TitleLabel.AttributedText = AttributedText;
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}
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/// <summary>
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/// 显示当前文字需要几行
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/// </summary>
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/// <returns></returns>
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int GetNeedLinesWithWidth()
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{
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return 0;
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}
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/**
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// @param width 给定一个宽度
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// @return 返回行数
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// */
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//- (NSInteger) needLinesWithWidth:(CGFloat) width
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// {
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// //创建一个labe
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// UILabel * label = [[UILabel alloc]
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// init];
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// //font和当前label保持一致
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// label.font = self.font;
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// NSString* text = self.text;
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// NSInteger sum = 0;
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// //总行数受换行符影响，所以这里计算总行数，需要用换行符分隔这段文字，然后计算每段文字的行数，相加即是总行数。
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// NSArray* splitText = [text componentsSeparatedByString: @"\n"];
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// for (NSString* sText in splitText)
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// {
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// label.text = sText;
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// //获取这段文字一行需要的size
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// CGSize textSize = [label systemLayoutSizeFittingSize: CGSizeZero];
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// //size.width/所需要的width 向上取整就是这段文字占的行数
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// NSInteger lines = ceilf(textSize.width / width);
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// //当是0的时候，说明这是换行，需要按一行算。
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// lines = lines == 0 ? 1 : lines;
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// sum += lines;
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// }
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// return sum;
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// }
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//#elif __Android__
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#else
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/// <summary>
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/// 按钮设置行距方法
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/// </summary>
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/// <param name="spacing"></param>
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void SetButtonLineSpacing(int spacing)
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{
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(this.AndroidView as Android.Widget.Button).SetLineSpacing(spacing, 1);
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}
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#endif
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}
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}
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