网上关于MVVM的介绍太多，我不再啰嗦了，直接上干货。
ps：没使用任何第三方，适合刚接触MVVM的同学拿来参考，如果您已是高手，希望您能提出宝贵意见。谢谢
架构还是有必要了解一下的
MVVM架构图解.png
项目结构目录.png
都知道目录是这样，里面代码逻辑怎么实现呢？详见页底demo传送门
1、Controller 负责 ViewManager 与 ViewModel 之间的绑定
在这里你只需import两个文件ViewManger，CustomViewModel
.m 全部代码
#import "FirstVC.h"
#import "ViewManager.h"
#import "CustomViewModel.h"
@interface FirstVC ()
@property(nonatomic,strong)ViewManager *viewManager;
@property(nonatomic,strong)CustomViewModel *viewModel;
@end
@implementation FirstVC
- (void)viewDidLoad {
[super viewDidLoad];
//让View的点击事件交给viewManager
[self.viewManager managerBtnBlockWithView:self.view];
//实现viewModel 与 View 的绑定
[self.viewModel fetchRequestCustomDataWithModelArray:^(NSMutableArray *array){
self.viewManager.setViewBlock(array);
}];
}
- (ViewManager *)viewManager {
return LB_LAZY(_viewManager, ({
ViewManager *manager = [ViewManager new];
manager;
}));
}
- (CustomViewModel *)viewModel {
return LB_LAZY(_viewModel, ({
CustomViewModel *cVM = [CustomViewModel new];
cVM;
}));
}
2、ViewModel 处理业务逻辑
.h文件
#import <Foundation/Foundation.h>
typedef void(^modelArrayBlock) (NSMutableArray *array);
@interface CustomViewModel : NSObject
- (void)fetchRequestCustomDataWithModelArray:(modelArrayBlock)arrayBlock;
@end
.m文件
@implementation CustomViewModel
- (void)fetchRequestCustomDataWithModelArray:(modelArrayBlock)arrayBlock{
[[ModelHandle new]requestCustomDataWithHandleBlock:^(NSArray *array) {
arrayBlock((NSMutableArray *)array);
}];
}
@end
3、ModelHandle 用来处理网络请求，转化为模型数据，与ViewModel，Model交互，实现ViewModel 与 Model 解耦
.h文件
/**
* 处理数据，将数据转化为模型 --> 提供给viewModel
*
*/
#import <Foundation/Foundation.h>
typedef void(^ModelHandleBlock)(NSArray *array);
@interface ModelHandle : NSObject
//请求数据
- (void)requestCustomDataWithHandleBlock:(ModelHandleBlock)handleBlcok;
@end
.m文件
#import "ModelHandle.h"
#import "CustomModel.h"
@interface ModelHandle ()
@property (nonatomic, strong) NSMutableArray *dataArrayList;
@end
@implementation ModelHandle
// 模拟网络请求
- (void)requestCustomDataWithHandleBlock:(ModelHandleBlock)handleBlcok {
NSArray *array = @[@{@"name":@"小明",@"age":@"12"}];
for (NSDictionary *dic in array) {
CustomModel *model = [CustomModel new];
[model setValuesForKeysWithDictionary:dic];
[self.dataArrayList addObject:model];
}
handleBlcok(self.dataArrayList);
}
- (NSMutableArray *)dataArrayList {
return LB_LAZY(_dataArrayList, @[].mutableCopy);
}
@end
4、ViewManager 用来处理View的常规事件，负责管理View
.h 文件
#import <Foundation/Foundation.h>
@class CustomView;
typedef void(^setCustomViewBlock)(NSArray *array);
@interface ViewManager : NSObject
@property (nonatomic,copy)setCustomViewBlock setViewBlock;
@property (nonatomic,weak)CustomView *customView;
- (void)managerBtnBlockWithView:(UIView *)supView;
@end
.m文件
#import "ViewManager.h"
#import "CustomView.h"
@implementation ViewManager
- (void)managerBtnBlockWithView:(UIView *)supView{
LBWeakSelf(self)
[supView addSubview:self.customView];
weakself.customView.btnActBlock = ^(UIButton *sender) {
NSLog(@"%@",sender.currentTitle);
};
weakself.setViewBlock = ^(NSArray *array) {
weakself.customView.setVBlock(array);
};
}
- (CustomView *)customView {
return LB_LAZY(_customView, ({
CustomView *cV = [[NSBundle mainBundle] loadNibNamed:@"CustomView" owner:nil options:nil].firstObject;
cV;
}));
}
@end
5、View 用来呈现用户界面
.h 文件
#import <UIKit/UIKit.h>
/**
* view的事件 全部交由viewManager 处理
*/
typedef void (^btnIsClicked)(UIButton *sender);
typedef void (^setViews)(NSArray *array);
@interface CustomView : UIView
@property (nonatomic,copy)btnIsClicked btnActBlock;
@property (nonatomic,copy)setViews setVBlock;
@end
.m 文件
#import "CustomView.h"
#import "CustomModel.h"
@interface CustomView ()
@property (weak, nonatomic) IBOutlet UILabel *nameLabel;
@property (weak, nonatomic) IBOutlet UILabel *ageLabel;
@end
@implementation CustomView
- (IBAction)firstBtnAction:(UIButton *)sender {
self.btnActBlock(sender);
}
- (IBAction)sectionBtnAction:(UIButton *)sender {
self.btnActBlock(sender);
}
- (void)awakeFromNib {
[super awakeFromNib];
self.frame = CGRectMake(0, 0, kScreenWidth, kScreenHeight);
LBWeakSelf(self)
self.setVBlock = ^(NSArray *array) {
CustomModel *model = array.firstObject;
weakself.nameLabel.text = model.name;
weakself.ageLabel.text = model.age;
};
}
@end
6、Model 用来呈现数据
.h 文件
#import <Foundation/Foundation.h>
@interface CustomModel : NSObject
//客户编号
@property(copy,nonatomic)NSString *name;
//客户名称
@property(copy,nonatomic)NSString *age;
@end
