iOS 视图样式该怎么样复用

最新推荐文章于 2020-07-29 15:27:29 发布

BetrayalPromise

最新推荐文章于 2020-07-29 15:27:29 发布

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分类专栏： iOS

本文链接：https://blog.youkuaiyun.com/BetrayalPromise/article/details/78790916

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本文介绍了一种在iOS开发中使用闭包来管理和共享视图样式的方案，以减少重复代码并提高样式的一致性和可维护性。

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其实也希望能像css那样处理iOS程序这种代码写的太多了没有多少意思思考一段时间了觉得应该有办法的我的办法是使用闭包

UILabel * label = [[UILabel alloc] initWithFrame:CGRectZero addToView:self.view];
label.backgroundColor = [UIColorredColor];
label.font = [UIFontsystemFontOfSize:16];
label.text =@"dfadfadfadfadfjka;fka;dfja";
label.layer.borderColor = [UIColoryellowColor].CGColor;
label.layer.borderWidth =1;
[label mas_makeConstraints:^(MASConstraintMaker *make) {
    make.center.mas_equalTo(self.view);
}];

看起来效果不错但是目前还正在考虑继承系统的样式处理有注意的伙伴不吝赐教

UIView+FunctionExtension.h

@interface UIView (StyleFormat)

/// 共享样式
@property (nonatomic, copy) void (^ _Nullable shareStyle) (id_Nonnull sourceView);

/// 独有样式
@property (nonatomic, copy) void (^ _Nullable uniqueStyle) (id_Nonnull sourceView);

- (void)shareStyle:(void(^_Nullable)(id_Nonnull sourceView))share uniqueStyle:(void(^_Nullable)(id_Nonnull sourceView))unique;

@end

UIView+FunctionExtension.m

@implementation UIView (StyleFormat)

- (void)setShareStyle:(void (^_Nullable)(id_Nonnull sourceView))shareStyle {
    if (shareStyle != nil) {
        shareStyle(self);
    }
    objc_setAssociatedObject(self,@selector(shareStyle), shareStyle,OBJC_ASSOCIATION_COPY_NONATOMIC);
}

- (void (^ _Nullable)(id_Nonnull sourceView))shareStyle {
    return objc_getAssociatedObject(self,_cmd);
}

- (void)setUniqueStyle:(void (^_Nullable)(id_Nonnull sourceView))uniqueStyle {
    if (uniqueStyle != nil) {
        uniqueStyle(self);
    }
    objc_setAssociatedObject(self,@selector(uniqueStyle), uniqueStyle,OBJC_ASSOCIATION_COPY_NONATOMIC);
}

- (void (^ _Nullable)(id_Nonnull sourceView))uniqueStyle {
    return objc_getAssociatedObject(self,_cmd);
}

- (void)shareStyle:(void(^_Nullable)(id_Nonnull sourceView))share uniqueStyle:(void(^_Nullable)(id_Nonnull sourceView))unique {
    self.shareStyle  = share;
    self.uniqueStyle = unique;
}

- (id)forwardingTargetForSelector:(SEL)aSelector {
    return [MessageObject new];
}

@end

MessageObject.h

@interface MessageObject : NSObject

@end

MessageObject.m

void realizationFunction(id obj,SEL_cmd);

@implementation MessageObject

+ (BOOL)resolveInstanceMethod:(SEL)sel {
    if (![self respondsToSelector:sel]) {
        class_addMethod([self class], sel, (IMP)realizationFunction,"v@:");
    }
    return YES;
}

@end

void realizationFunction(id obj,SEL_cmd) {
    NSLog(@"%@:%@", obj,NSStringFromSelector(_cmd));
}

目前除了打印有些不一样是否有BUG进一步验证

2017-12-13 23:09:42.894667+0800 Layout[66916:2018402] (null):encodeWithOSLogCoder:options:maxLength:
2017-12-13 23:09:42.894907+0800 Layout[66916:2018402] (null):encodeWithOSLogCoder:options:maxLength:
2017-12-13 23:09:42.895193+0800 Layout[66916:2018402] (null):encodeWithOSLogCoder:options:maxLength:

异常的日志我的项目用到现在没有什么问题

工具链接 https://github.com/BetrayalPromise/MineCommonUtils 希望各位大佬赏赐一颗start