Android:如何在 TextView 中制作不可破坏的块? [英] Android: How do i make nonbreakable block in TextView?

问题描述

我有很长的文本，其中包含看起来像某事-某事"的名称.这个长文本显示在 TextView 中.问题是某事-某事"换行了.

I have long text containing name that looks like "something-something". This long text is shown in TextView. The problem is "something-something" got line breaked.

我找到了 unicode 字符 U+2011 NON-BREAKING HYPHEN.但从 Android 3.0 开始，字体似乎支持这个 unicode 字符.但是，我支持 Android 2.1，其中显示了替换字符.

I have found unicode character U+2011 NON-BREAKING HYPHEN. But it looks like this unicode character is supported in font since Android 3.0. However I'm supporting Android 2.1 where replacement character is shown instead.

我查看了 Spannable 类，但没有找到如何定义不间断的文本块.也许我忽略了一些东西.

I have looked at class Spannable, but I did not find how to define nonbreaking block of text. Maybe I overlook something.

推荐答案

我通过实现 ReplacementSpan 在单个块中呈现文本来解决文本块的破坏.代码如下:

I solved breaking of the text block by implementing ReplacementSpan to render text in single block. Here is the code:

public class NonbreakingSpan extends ReplacementSpan {

    @Override
    public void draw(
            Canvas canvas,
            CharSequence text, int start, int end,
            float x, int top, int y, int bottom,
            Paint paint) {
        canvas.drawText(text, start, end, x, y, paint);
    }

    @Override
    public int getSize(
            Paint paint,
            CharSequence text, int start, int end,
            FontMetricsInt fm) {
        return Math.round(paint.measureText(text, start, end));
    }
}

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