JPAttributedString 1.0.0-beta.1

JPAttributedString 1.0.0-beta.1

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测试测试✓
语言语言 Obj-CObjective C
许可证 MIT
发布最新发布2017年10月
SwiftSwift 版本4.0

由 James Paolantonio 维护。

JPAttributedString 1.0.0-beta.1

用于创建、更改和使用 NSAttributedStrings 的 DSL

安装

使用 CocoaPods 安装

pod 'JPAttributedString'

用法

创建 NSAttributedString

创建 NSAttributedStrings 时最大的问题是什么？

NSAttributedString *attributedString =
    [[NSAttributedString alloc] initWithString:@"James"
                                    attributes:@{
                                                 NSFontAttributeName : [UIFont boldSystemFontOfSize:22.f],
                                                 NSForegroundColorAttributeName : [UIColor blackColor],
                                                 }];
self.label.attributedText = attributedString;

代码相当冗长，而且不太可重用。让我们尝试提取字典。

JPStringAttribute *attribute = [[JPStringAttribute alloc] init];
attribute.font = [UIFont boldSystemFontOfSize:22.f];
attribute.foregroundColor = [UIColor blackColor];
self.label.attributedText = [[NSAttributedString alloc] initWithString:@"James"
                                                            attributes:attribute.attributedDictionary];

NSParagraphStyle

NSParagraphStyle 是 NSAttributedString 的一个属性，允许进一步配置段落或标尺属性。使用 JPStringAttribute，修改段落样式更简单。

NSMutableParagraphStyle *mutableStyle = [[NSMutableParagraphStyle alloc] init];
mutableStyle.paragraphSpacing = 8.f;
mutableStyle.lineBreakMode = NSLineBreakByTruncatingMiddle;

NSAttributedString *attributedString =
    [[NSAttributedString alloc] initWithString:@"James"
                                    attributes:@{
                                                 NSFontAttributeName : [UIFont boldSystemFontOfSize:22.f],
                                                 NSForegroundColorAttributeName : [UIColor blackColor],
                                                 NSParagraphStyleAttributeName : mutableStyle,
                                                 }];
self.label.attributedText = attributedString;

与以下相比

JPStringAttribute *attribute = [[JPStringAttribute alloc] init];
attribute.font = [UIFont boldSystemFontOfSize:22.f];
attribute.foregroundColor = [UIColor blackColor];
attribute.paragraphSpacing = 8.f;
attribute.lineBreakMode = NSLineBreakByTruncatingMiddle;
self.label.attributedText = [[NSAttributedString alloc] initWithString:@"James"
                                                                attributes:attribute.attributedDictionary];
}

其他辅助工具

您是否曾经不得不添加一堆 NSAttributedStrings，然后将它们分配给 UILabel？

NSMutableAttributedString *string = [[NSMutableAttributedString alloc] init];

[string appendAttributedString:
     [[NSAttributedString alloc] initWithString:@"James"
                                     attributes:@{
                                                  NSFontAttributeName : [UIFont boldSystemFont:22.f],
                                                  NSForegroundColorAttributeName : [UIColor blackColor]
                                                  }]];

[string appendAttributedString:
     [[NSAttributedString alloc] initWithString:@"\nEngineer"
                                     attributes:@{
                                                  NSFontAttributeName : [UIFont boldSystemFont:16.f],
                                                  NSForegroundColorAttributeName : [UIColor darkGrayColor]
                                                  }]];

[string appendAttributedString:
     [[NSAttributedString alloc] initWithString:@"New York City"
                                     attributes:@{
                                                  NSFontAttributeName : [UIFont boldSystemFont:12.f],
                                                  NSForegroundColorAttributeName : [UIColor grayColor]
                                                  }]];

self.label.text = string;

这更好吗？

[self.label jp_appendString:@"James" attributesBlock:^(JPStringAttribute *make) {
    make.font = [UIFont boldSystemFontOfSize:22.f];
    make.foregroundColor = [UIColor blackColor];
}];

[self.label jp_appendString:@"\nEngineer" attributesBlock:^(JPStringAttribute *make) {
    make.font = [UIFont boldSystemFontOfSize:16.f];
    make.foregroundColor = [UIColor darkGrayColor];
}];

[self.label jp_appendString:@"\nNewYork" attributesBlock:^(JPStringAttribute *make) {
    make.font = [UIFont boldSystemFontOfSize:12.f];
    make.foregroundColor = [UIColor grayColor];
}];

示例

项目包含一个示例。要安装，

cd Example/
pod install
open JPAttributedString.xcworkspace/

贡献

提交给我拉取请求！

作者

James Paolantonio - @jpaolantonio

额外资料

让我知道您是否在使用此工具或想进行任何修改！:)