CTMediator 的初体验

时间 2020-04-04

标签 ctmediator 体验繁體版

原文原文链接

接触的前提

如今对于iOS开发的要求随着时代的发展，也在渐渐地演变。这几天看到了不少JD的要求，多多少少都会提到这样的一个名字-组件化。objective-c

我的对于组件化的理解

一开始我对于组件化的理解仍是很模糊的，总以为很高端很大气很上档次的感受。有种看得见摸不着的感受。个人理解就是把项目中的多个小功能组件进行私有库化，让他不依赖于项目，下降项目中的耦合性。其实在通常开发中也用到过。CocoaPods我理解为也是组件化的一种形式。ide

CTMediator——中介者

我的理解为跳转的统一派送中心，有点和物流中转站差很少。统一处理页面的跳转逻辑。函数

CTMediator使用教程

通常原生页面的跳转

#import "CTMediatorTestViewController.h"
#import "CTMediatorPushViewController.h"
@interface CTMediatorTestViewController ()

@property (nonatomic, strong) UIButton *normalPushButton;

@end

@implementation CTMediatorTestViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    [self.view addSubview:self.normalPushButton];
    [self.normalPushButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.view).offset(100);
        make.left.equalTo(self.view).offset(10);
    }];
}
#pragma mark - 点击事件
- (void)normalPushButtonTapAction:(UIButton *)button{
    CTMediatorPushViewController *normalPushVC = [[CTMediatorPushViewController alloc]init];
    [self.navigationController pushViewController:normalPushVC animated:YES];
}
#pragma mark - 懒加载
- (UIButton *)normalPushButton{
    if (!_normalPushButton) {
        _normalPushButton = [UIButton buttonWithType:UIButtonTypeCustom];
        [_normalPushButton setTitle:@"常规Push"
                           forState:UIControlStateNormal];
        [_normalPushButton setTitleColor:[UIColor blackColor]
                                forState:UIControlStateNormal];
        [_normalPushButton addTarget:self
                              action:@selector(normalPushButtonTapAction:)
                    forControlEvents:UIControlEventTouchUpInside];
    }
    return _normalPushButton;
}
@end
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这就是很简单原生页面的跳转。当咱们一个页面要去跳转不一样的ViewController的时候就要在上面#import "xxxxxxx.h"。长此以往页面就会有不少的引入文件。若是这个ViewController能够在别的项目中用到的话那是否是也要将这些引入的#import "xxxxxxx.h"也一并带入。这样就会让项目耦合性很高。组件化

CTMediator Target-Action 实现页面跳转

咱们依然使用上面的那两个控制器来实现。atom

1.建立 Target-Action

咱们须要建立一个Target_Push类，在这个类中的.h文件中咱们要添加一个函数来对目标控制器进行实例化，若是须要参数也能够进行一些赋值操做。spa

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>

NS_ASSUME_NONNULL_BEGIN

@interface Target_Push : NSObject

- (UIViewController *)Action_NativeToCTMediatorPushViewController:(NSDictionary *)params;

@end
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而后咱们在.m文件中实现咱们所定义的函数code

#import "Target_Push.h"
#import "CTMediatorPushViewController.h"


@implementation Target_Push

- (UIViewController *)Action_NativeToCTMediatorPushViewController:(NSDictionary *)params{
    CTMediatorPushViewController *pushVC = [[CTMediatorPushViewController alloc]init];
    if ([params valueForKey:@""]) {
        
    }
    return pushVC;
}

@end
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2.建立 CTMediator 的 Category

咱们在建立的分类中定义这样的一个函数orm

#import <CTMediator/CTMediator.h>
#import "BaseViewController.h"

@interface CTMediator (PushActions)

- (BaseViewController *)dtp_mediator_ctmediatorPushViewControllerWithParams:(NSDictionary *)params;

@end
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这里的ViewController统一用了BaseViewController若是是用UIViewController 不要忘记了\#import <UIKit/UIKit.h>。而后咱们来实现这个函数教程

#import "CTMediator+PushActions.h"
//  1. kCTMediatorTarget_Push字符串 是 Target_xxx.h 中的 xxx 部分
NSString * const kCTMediatorTarget_Push = @"Push";
//  2. kCTMediatorActionNativeTo_NewsViewController 是 Target_xxx.h 中 定义的 Action_xxxx 函数名的 xxx 部分
NSString * const kCTMediatorActionNativeTo_NewsViewController = @"NativeToCTMediatorPushViewController";

@implementation CTMediator (PushActions)

- (BaseViewController *)dtp_mediator_ctmediatorPushViewControllerWithParams:(NSDictionary *)params{
    
    BaseViewController *viewController = [self performTarget:kCTMediatorTarget_Push
                                                      action:kCTMediatorActionNativeTo_NewsViewController
                                                      params:params
                                           shouldCacheTarget:NO];
    if ([viewController isKindOfClass:[BaseViewController class]]) {
        GGLog(@"%@ 实例化页面成功", NSStringFromSelector(_cmd));
        return viewController;
    }else{
        GGLog(@"%@ 未能实例化页面", NSStringFromSelector(_cmd));
        return [[BaseViewController alloc]init];
    }
}

@end
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调用实现

#import "CTMediatorTestViewController.h"
#import "CTMediator+PushActions.h"
@interface CTMediatorTestViewController ()

@property (nonatomic, strong) UIButton *normalPushButton;

@end

@implementation CTMediatorTestViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    [self.view addSubview:self.normalPushButton];
    [self.normalPushButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.view).offset(100);
        make.left.equalTo(self.view).offset(10);
    }];
}
#pragma mark - 点击事件
- (void)normalPushButtonTapAction:(UIButton *)button{
    NSDictionary *params = @{@"title":@"CTMediatorPushViewController"};
    BaseViewController *pushVC = [[CTMediator sharedInstance] dtp_mediator_ctmediatorPushViewControllerWithParams:params];
    [self.navigationController pushViewController:pushVC animated:YES];
}
#pragma mark - 懒加载
- (UIButton *)normalPushButton{
    if (!_normalPushButton) {
        _normalPushButton = [UIButton buttonWithType:UIButtonTypeCustom];
        [_normalPushButton setTitle:@"Target-Action 实现页面跳转"
                           forState:UIControlStateNormal];
        [_normalPushButton setTitleColor:[UIColor blackColor]
                                forState:UIControlStateNormal];
        [_normalPushButton addTarget:self
                              action:@selector(normalPushButtonTapAction:)
                    forControlEvents:UIControlEventTouchUpInside];
    }
    return _normalPushButton;
}
@end
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可是使用起来的过程感受彷佛尚未以前的直接Push凡是简单。多是我如今的理解仍是不够深吧~~~事件