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Vertically center iOS text if lineHeight is set

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Summary:
First PR!!

This fixes https://github.com/facebook/react-native/issues/2991 :)
Closes https://github.com/facebook/react-native/pull/7603

Differential Revision: D3417257

fbshipit-source-id: 074d56c1dfc0a9ba713e59c804286fd915589eeb
This commit is contained in:
Tucker Connelly 2016-06-10 04:20:12 -07:00 committed by Facebook Github Bot 3
parent d43e0db81e
commit 33dfc9db92
1 changed files with 8 additions and 0 deletions
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8
Libraries/Text/RCTShadowText.m
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@ -369,6 +369,14 @@ static css_dim_t RCTMeasure(void *context, float width, css_measure_mode_t width
}
paragraphStyle.minimumLineHeight = lineHeight;
paragraphStyle.maximumLineHeight = lineHeight;
// vertically center text
CGFloat fontSize = _fontSize && !isnan(_fontSize) ? _fontSize : UIFont.systemFontSize;
fontSize *= fontSizeMultiplier;
[attributedString addAttribute:NSBaselineOffsetAttributeName
value:@(lineHeight/2 - fontSize/2)
range:(NSRange){0, attributedString.length}];
[attributedString addAttribute:NSParagraphStyleAttributeName
value:paragraphStyle
range:(NSRange){0, attributedString.length}];