1、MVC
Apple官方最标准的是UITableViewController
// VC里面对view进行赋值。
cell.textLabel.text = model.title;
delegate
2、MVC变种
view.model = model;
view.delegate = self;
3、MVP
VC任命一个presenter帮他处理相关业务，实现代码拆分。相当于manager
// VC中
self.presenter = [[MJAppPresenter alloc] initWithController:self];
// presenter里面处理view、model、delegate
- (instancetype)initWithController:(UIViewController *)controller
{
if (self = [super init]) {
self.controller = controller;
// 创建View
MJAppView *appView = [[MJAppView alloc] initWithFrame:CGRectMake(100, 100, 100, 150)];
appView.delegate = self;
[controller.view addSubview:appView];
// 加载模型数据
MJApp *app = [[MJApp alloc] init];
app.name = @"QQ";
app.image = @"QQ";
// 赋值数据
[appView setName:app.name andImage:app.image];
// appView.iconView.image = [UIImage imageNamed:app.image];
// appView.nameLabel.text = app.name;
}
return self;
}
#pragma mark - MJAppViewDelegate
- (void)appViewDidClick:(MJAppView *)appView
{
NSLog(@"presenter 监听了 appView 的点击");
}
3、MVVM
相当于MVP中的P换成了VM，然后加了监听机制(RAC或KVO)
// ViewModel
- (instancetype)initWithController:(UIViewController *)controller
{
if (self = [super init]) {
self.controller = controller;
// 创建View
MJAppView *appView = [[MJAppView alloc] init];
appView.frame = CGRectMake(100, 100, 100, 150);
appView.delegate = self;
appView.viewModel = self;
[controller.view addSubview:appView];
// 加载模型数据
MJApp *app = [[MJApp alloc] init];
app.name = @"QQ";
app.image = @"QQ";
// 设置数据
self.name = app.name;
self.image = app.image;
}
return self;
}
// View
- (void)setViewModel:(MJAppViewModel *)viewModel
{
_viewModel = viewModel;
__weak typeof(self) waekSelf = self;
[self.KVOController observe:viewModel keyPath:@"name" options:NSKeyValueObservingOptionNew block:^(id _Nullable observer, id _Nonnull object, NSDictionary<NSKeyValueChangeKey,id> * _Nonnull change) {
waekSelf.nameLabel.text = change[NSKeyValueChangeNewKey];
}];
[self.KVOController observe:viewModel keyPath:@"image" options:NSKeyValueObservingOptionNew block:^(id _Nullable observer, id _Nonnull object, NSDictionary<NSKeyValueChangeKey,id> * _Nonnull change) {
waekSelf.iconView.image = [UIImage imageNamed:change[NSKeyValueChangeNewKey]];
}];
}
4、分层
界面层- 新闻列表，tableview
业务层- 加载展示数据，一些业务逻辑
数据层- 网络或本地
5、设计模式
比架构小，关注类与类之间的关系，主要有六大原则：依赖倒置、单一职责、最小知道、开闭、里氏替换、迪米特(邻近)
