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iOS 7 计算字符串高度

IP云
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08/30
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- (float)width:(NSString *)str font:(UIFont *)font
{
NSDictionary *attribute = @{NSFontAttributeName:font}; CGSize size = [str boundingRectWithSize:CGSizeMake(_bgView.frame.size.width - *MARGIN_TOP, CGFLOAT_MAX) options: NSStringDrawingTruncatesLastVisibleLine | NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading attributes:attribute context:nil].size;
return size.height;
}