Objection基本原理

@implementation Module

+ (void)load {
//默认注射器
    JSObjectionInjector *injector = [JSObjection defaultInjector];
//没有就创建一个注射器
    injector = injector ? : [JSObjection createInjector];
    injector = [injector withModule:[[self alloc] init]];
    [JSObjection setDefaultInjector:injector];
}

- (void)configure {
    [self bindClass:[BViewController class] toProtocol:@protocol(BViewControllerProtocol)];
}

@end

- (IBAction)btnClick:(id)sender {

    JSObjectionInjector *injector = [JSObjection defaultInjector];

    UIViewController <BViewControllerProtocol> *vc = [injector getObject:@protocol(BViewControllerProtocol)];

    vc.backgroundColor = [UIColor redColor];

    vc.currentIndex = 1000;

    [self.navigationController pushViewController:vc animated:YES];

}}