sizeWithFont:constrainedToSize:转boundingRectWithSize:options
2015-11-18 12:45
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CGFloat width1=[(NSString *)ob1 sizeWithFont:[UIFont systemFontOfSize:16] constrainedToSize:CGSizeMake(1000, FONTHEIGHT)].width;
转
CGFloat width1=[(NSString *)ob1 boundingRectWithSize:CGSizeMake(1000, FONTHEIGHT) options:NSStringDrawingUsesLineFragmentOrigin
attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:16]} context:nil].size.width;
boundingRectWithSize: CGSize 对应
constrainedToSize: CGSize
attributes:@{NSFontAttributeName: [ UIFont ]
} 对应 sizeWithFont[ UIFont ]
options: NSStringDrawingUsesLineFragmentOrigin 默认照填
context: nil 默认照填
转
CGFloat width1=[(NSString *)ob1 boundingRectWithSize:CGSizeMake(1000, FONTHEIGHT) options:NSStringDrawingUsesLineFragmentOrigin
attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:16]} context:nil].size.width;
boundingRectWithSize: CGSize 对应
constrainedToSize: CGSize
attributes:@{NSFontAttributeName: [ UIFont ]
} 对应 sizeWithFont[ UIFont ]
options: NSStringDrawingUsesLineFragmentOrigin 默认照填
context: nil 默认照填
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