Question

我有一个用文本文件填充的Uitextview。我在页面上有一个控件，允许用户启用和禁用分页。我遇到的问题是文本的顶部和/或底部行有时“分成两半”，因此您只能看到该行的上半部分或下半部分。我相信下面的代码应该解决它。代码获取文本的行高和帧高，计算出屏幕上可见的行数，并创建一个新的帧高度以使其适合。虽然框架确实调整了大小，但它仍然“切断”顶部和/或底部线。有人有任何建议吗？我的数学错了吗？

感谢!!!

 - (void)fitText
    {

            CGFloat maximumLabelHeight = 338;
            CGFloat minimumLabelHeight = 280;

            CGSize lineSize = [theUiTextView.text sizeWithFont:theUiTextView.font];
            CGFloat lineSizeHeight = lineSize.height;
            CGFloat theNumberOfLinesThatShow = theUiTextView.frame.size.height/lineSize.height;

            //adjust the label the the new height
            theNumberOfLinesThatShow = round(theNumberOfLinesThatShow);

            CGFloat theNewHeight = lineSizeHeight * theNumberOfLinesThatShow;

            if (theNewHeight > maximumLabelHeight)
        {
            theNumberOfLinesThatShow = theNumberOfLinesThatShow - 1;
            theNewHeight = lineSizeHeight * theNumberOfLinesThatShow;
        }
        if (theNewHeight < minimumLabelHeight)
        {
            theNumberOfLinesThatShow = theNumberOfLinesThatShow + 1;
            theNewHeight = lineSizeHeight * theNumberOfLinesThatShow;
        }

            //adjust the label the the new height.
            CGRect newFrame = theUiTextView.frame;
            newFrame.size.height = theNewHeight;
            theUiTextView.frame = newFrame;
}

Answer 1

UIScrollView（和UITextView是一个UIScrollView）似乎在两侧使用固定的8像素插入。这似乎与对齐或字体大小无关。

所以，我认为你在这里缺少的是16.0的软糖因子 - 见this question.

iphone UitextView Text cut off

1 个答案: