The current implementation of MarkdownLineHeightSpan is a bit tricky:
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public class MarkdownLineHeightSpan implements MarkdownSpan, LineHeightSpan { |
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private final float mLineHeight; |
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public MarkdownLineHeightSpan(float lineHeight) { |
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mLineHeight = lineHeight; |
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} |
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@Override |
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public void chooseHeight(CharSequence text, int start, int end, int spanstartv, int lineHeight, Paint.FontMetricsInt fm) { |
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fm.top -= mLineHeight / 4; |
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fm.ascent -= mLineHeight / 4; |
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} |
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} |
Also, we need to obtain information about existing spans before applying MarkdownLineHeightSpan:
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case "h1": |
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setSpan(ssb, new MarkdownBoldSpan(), start, end); |
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CustomLineHeightSpan[] spans = ssb.getSpans(0, ssb.length(), CustomLineHeightSpan.class); |
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if (spans.length >= 1) { |
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int lineHeight = spans[0].getLineHeight(); |
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setSpan(ssb, new MarkdownLineHeightSpan(lineHeight * 1.5f), start, end); |
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} |
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// NOTE: size span must be set after line height span to avoid height jumps |
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setSpan(ssb, new MarkdownFontSizeSpan(mMarkdownStyle.getH1FontSize()), start, end); |
The objective of this task is to eliminate division by 4 as well as calling .getSpans() method if needed.
