/GRichLabel

A rich Label that supports text selection。 支持文本选择的富文本排版引擎. 小说阅读器、Feed流富文本。文本粘贴复制。微信聊天文本气泡

Primary LanguageObjective-CMIT LicenseMIT

GRichLabel

A rich Label that supports selection, copying.

Features

  • 1,基于coretext绘制文本.内部使用YYAsyncLayer提供异步绘制任务
  • 2,支持选择/复制文本.
  • 3,支持自定义表情排版
  • 4,可自定义文本选择弹出menuView GMenuContoller
  • 5,对于文本token 采用多模匹配算法. 详见GMatcherExpression.文本匹配效率比系统字符串匹配效率提高百倍.
  • 6,功能以及代码还在更新完善中. 后期会支持更多功能.欢迎star.
  • 7,支持文本在滚动视图中做文本滚动选择 （微信聊天气泡文本选择）

Usage

1

  GRichLabel *richLabel = [GRichLabel new];
  richLabel.frame = CGRectMake(5, 0, self.view.frame.size.width-10, 500);
  richLabel.text = @"xxxxxx";

2

{
self.tokens = @[@"@冯科",@"@王金yu",@"@巩柯",@"#郭天池#"];
GRichLabel *richLabel = [GRichLabel new];
richLabel.frame = CGRectMake(5, 0, self.view.frame.size.width-10, 500);
}

- (void)setRichText
{
    __weak typeof(self) ws = self;
    NSString* string =[self content1];
    __block NSMutableArray *tokens = [NSMutableArray array];
    [self.tokens enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        if (!obj) *stop = NO;
        GAttributedToken * token = [GAttributedToken attributedTextToken:obj];
        token.tokenClickBlock = ^(GAttributedToken *token) {
            [ws gotoVC:token.textToken];
        };
        [tokens addObject:token];
    }];
    GAttributedToken *regex = [GAttributedToken new];
    regex.regexToken = Phone;
    regex.tokenClickBlock = ^(GAttributedToken *token) {

    };
    GAttributedStringLayout *layout = [GAttributedStringLayout attributedLayout:string];
    layout.tokenPatternConfigs = tokens.copy;
    layout.regexPatternConifgs = @[regex];
    layout.textAlignment = kCTTextAlignmentJustified;
    layout.linespace = 1;
    layout.lineIndent = 2;
    layout.font = [UIFont systemFontOfSize:14];

    NSMutableAttributedString * truncation = [[NSMutableAttributedString alloc] initWithString:@"...全文"];

    layout.truncationToken = truncation;
    GDrawTextBuilder * builder = [GAttributedStringFactory createDrawTextBuilderWithLayout:layout boundSize:self.richLabel.frame.size];
    self.richLabel.textBuilder = builder;
  
}

Installation

  • 手动添加
  1. git clone https://github.com/GIKICoder/GRichLabel.git
  2. 选择GRichLabel文件夹.拖入项目中.
  3. GRichLabel 依赖 GMenuController https://github.com/GIKICoder/GMenuController,  YYAsyncLayer https://github.com/ibireme/YYAsyncLayer 这2个库. 可以使用pod添加. 也可下载手动添加到项目

update Info

  • 29/10/2017 代码重构.处理耦合逻辑.简化代码.重新整理NSAttributedString分类(参考NSAttributedString+YYText).使GRichLabel具有更强大的文本处理能力.
  • 06/12/2017 增加kGAttributeTokenReplaceStringName. 支持自定义表情 链接等字符串copy 处理.
  • 19/04/2018 增加GMatherExpression 增加字符匹配模式.
  • 27/08/2018 增加文本选择模式，在滚动视图下可支持滚动文本选择。

screenshot

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