KeepLayout 项目使用教程

KeepLayout 项目使用教程

KeepLayout项目地址:https://gitcode.com/gh_mirrors/kee/KeepLayout

1. 项目的目录结构及介绍

KeepLayout 项目的目录结构如下：

KeepLayout/
├── LICENSE.md
├── README.md
├── KeepLayout.podspec
├── Sources/
│   ├── UIView+KeepLayout.h
│   ├── UIView+KeepLayout.m
│   ├── KeepAttribute.h
│   ├── KeepAttribute.m
│   ├── KeepLayoutConstraint.h
│   ├── KeepLayoutConstraint.m
│   ├── KeepTypes.h
│   ├── KeepTypes.m
│   ├── KeepView.h
│   └── KeepView.m
└── Tests/
    └── KeepLayoutTests.m

目录介绍

• LICENSE.md: 项目的许可证文件。
• README.md: 项目的说明文档。
• KeepLayout.podspec: 项目的 CocoaPods 配置文件。
• Sources/: 包含项目的所有源代码文件。
  • UIView+KeepLayout.h 和 UIView+KeepLayout.m: 扩展 UIView 的布局功能。
  • KeepAttribute.h 和 KeepAttribute.m: 定义布局属性的类。
  • KeepLayoutConstraint.h 和 KeepLayoutConstraint.m: 自定义 NSLayoutConstraint 类。
  • KeepTypes.h 和 KeepTypes.m: 定义布局相关的类型。
  • KeepView.h 和 KeepView.m: 定义 KeepView 类。
• Tests/: 包含项目的测试文件。

2. 项目的启动文件介绍

KeepLayout 项目的启动文件主要是 UIView+KeepLayout.h 和 UIView+KeepLayout.m。这两个文件扩展了 UIView 类，添加了布局相关的功能。

UIView+KeepLayout.h

#import <UIKit/UIKit.h>

@interface UIView (KeepLayout)

// 布局属性
@property (readonly) KeepAttribute *keepTop;
@property (readonly) KeepAttribute *keepLeft;
@property (readonly) KeepAttribute *keepBottom;
@property (readonly) KeepAttribute *keepRight;
@property (readonly) KeepAttribute *keepWidth;
@property (readonly) KeepAttribute *keepHeight;
@property (readonly) KeepAttribute *keepCenterX;
@property (readonly) KeepAttribute *keepCenterY;

// 其他布局相关方法
- (KeepAttribute *)keepTopOffsetTo:(UIView *)view;
- (KeepAttribute *)keepLeftOffsetTo:(UIView *)view;
- (KeepAttribute *)keepBottomOffsetTo:(UIView *)view;
- (KeepAttribute *)keepRightOffsetTo:(UIView *)view;

@end

UIView+KeepLayout.m

#import "UIView+KeepLayout.h"
#import "KeepAttribute.h"

@implementation UIView (KeepLayout)

- (KeepAttribute *)keepTop {
    return [KeepAttribute attributeWithView:self layoutAttribute:NSLayoutAttributeTop];
}

- (KeepAttribute *)keepLeft {
    return [KeepAttribute attributeWithView:self layoutAttribute:NSLayoutAttributeLeft];
}

- (KeepAttribute *)keepBottom {
    return [KeepAttribute attributeWithView:self layoutAttribute:NSLayoutAttributeBottom];
}

- (KeepAttribute *)keepRight {
    return [KeepAttribute attributeWithView:self layoutAttribute:NSLayoutAttributeRight];
}

- (KeepAttribute *)keepWidth {
    return [KeepAttribute attributeWithView:self layoutAttribute:NSLayoutAttributeWidth];
}

- (KeepAttribute *)keepHeight {
    return [KeepAttribute attributeWithView:self layoutAttribute:NSLayoutAttributeHeight];
}

- (KeepAttribute *)keepCenterX {
    return [KeepAttribute attributeWithView:self layoutAttribute:NSLayoutAttributeCenterX];
}

- (KeepAttribute *)keepCenterY {
    return [KeepAttribute attributeWithView:self layoutAttribute:NSLayoutAttributeCenterY];
}

- (KeepAttribute *)keepTopOffsetTo:(UIView *)view {
    return [self keepTop].to(view.keepBottom);
}

- (KeepAttribute *)keepLeftOffsetTo:(UIView *)view {
    return [self keepLeft].to(view.keepRight);
}

- (KeepAttribute *)keepBottomOffsetTo:(UIView *)view {
    return [self keepBottom].to(view.keepTop

KeepLayout项目地址:https://gitcode.com/gh_mirrors/kee/KeepLayout