ParagraphString, paragraph

ParagraphString, paragraph

ParagraphString-simple processing of paragraph styles

 

Effect

 

Source code

ParagraphString in the https://github.com/YouXianMing/UI-Component-Collection

//// ParagraphString. h // RichString // Created by YouXianMing on 2016/11/11. // Copyright 2016 TechCode. all rights reserved. // # import <Foundation/Foundation. h> # import <UIKit/UIKit. h> # import "BaseParagraphStyle. h "@ interface ParagraphString: NSObject/** The input string. */@ property (nonatomic, strong) NSString * string;/** Set the string's font, default is nil. */@ property (nonatomic, strong) UIFont * font;/** Set the string's textColor, default is nil. */@ property (nonatomic, strong) UIColor * textColor;/** Set the paragraph style, default is nil. */@ property (nonatomic, strong) BaseParagraphStyle * paragraphStyle;/** Make the config (Font, textColor, paragraphStyle) Valid tive. */-(void) makeconfigpolictive;/** The attributedString, before you get this, you shoshould set property and run makeconfigpolictive first. */@ property (nonatomic, strong, readonly) NSMutableAttributedString * attributedString;/** The string's height with the fixed width. @ param width The specified width. @ return The string's height. */-(CGFloat) heightWithFixedWidth :( CGFloat) width;/** The string's height with the fixed width. @ param lines The number of lines. @ param width The specified width. @ return The string's height. */-(CGFloat) numberOfLines :( NSInteger) lines fixedWidth :( CGFloat) width;/** ParagraphString's constructor. @ param string The string. @ param font The font. @ param color The color. @ param style The paragraph style. @ return The ParagraphString's instance. * // + (instancetype) paragraphStringWithString :( NSString *) string font :( UIFont *) font color :( UIColor *) color paragraphStyle :( BaseParagraphStyle *) style; @ end

//// ParagraphString. m // RichString /// Created by YouXianMing on 2016/11/11. // Copyright 2016 TechCode. all rights reserved. // # import "ParagraphString. h "@ interface ParagraphString () @ property (nonatomic, strong) NSMutableAttributedString * attributedString; @ end @ implementation ParagraphString-(void) makeconfigconfigurtive {if (self. string) {nsange range = NSMakeRange (0, self. string. length); NSMutab LeAttributedString * richString = [[NSMutableAttributedString alloc] initWithString: self. string]; self. font? [RichString addattriename: NSFontAttributeName value: self. font range: range]: 0; self. textColor? [RichString addattristyle: NSForegroundColorAttributeName value: self. textColor range: range]: 0; self. paragraphStyle? [RichString addattriename: NSParagraphStyleAttributeName value: self. paragraphStyle range: range]: 0; self. attributedString = richString;} else {self. attributedString = nil; }}+ (instancetype) paragraphStringWithString :( NSString *) string font :( UIFont *) font color :( UIColor *) color paragraphStyle :( BaseParagraphStyle *) style {ParagraphString * paragraphString = [[self class] alloc] init]; paragraphStr Ing. string = string; paragraphString. font = font; paragraphString. textColor = color; paragraphString. paragraphStyle = style; [paragraphString makeconfigvalid tive]; return paragraphString;}-(CGFloat) heightWithFixedWidth :( CGFloat) width {CGFloat height = 0; if (self. attributedString) {CGRect rect = [self. attributedString boundingRectWithSize: CGSizeMake (width, MAXFLOAT) options: NSStringDrawingTrunc AtesLastVisibleLine | NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading context: nil]; height = rect. size. height;} return height;}-(CGFloat) numberOfLines :( NSInteger) lines fixedWidth :( CGFloat) width {nsange range = NSMakeRange (0, self. string. length); NSMutableAttributedString * richString = [[NSMutableAttributedString alloc] initWithString: self. string]; self. font? [RichString addattriename: NSFontAttributeName value: self. font range: range]: 0; self. textColor? [RichString addattristyle: NSForegroundColorAttributeName value: self. textColor range: range]: 0; self. paragraphStyle? [RichString addattriename: NSParagraphStyleAttributeName value: self. paragraphStyle range: range]: 0; UILabel * label = [[UILabel alloc] initWithFrame: CGRectMake (0, 0, width, 0)]; label. numberOfLines = lines; label. attributedText = richString; [label sizeToFit]; return label. frame. size. height;} @ end

/// BaseParagraphStyle. h // RichString // Created by YouXianMing on 2016/11/11. // Copyright 2016 TechCode. all rights reserved. // # import <UIKit/UIKit. h> @ interface BaseParagraphStyle: NSMutableParagraphStyle @ end

/// BaseParagraphStyle. m // RichString /// Created by YouXianMing on 2016/11/11. // Copyright 2016 TechCode. all rights reserved. // # import "BaseParagraphStyle. h "@ implementation BaseParagraphStyle @ end