ReactiveObjC登录简单使用

ViewModel

@interface HomeVM : NSObject

@property (nonatomic, copy) NSString *phoneNumber;
@property (nonatomic, copy) NSString *pwd;
@property (nonatomic, copy) NSString *verifyCode;

@property (nonatomic, assign) BOOL isEnableVerifyButton;
@property (nonatomic, assign) BOOL isEnableNextButton;

@property (nonatomic, assign) BooL isAgreeProtocol;
@property (nonatomic, strong) RACSignal *registerEnableSignal;

@end

@implementation HomeVM

- (instancetype)init {
    self = [super init];
    if (self) {
        
        [self setRAC];
        
    }
    return self;
}


- (void)setRAC {
    
    // 绑定 isEnableVerifyButton 可用条件
    RAC(self, isEnableVerifyButton) = [RACSignal combineLatest:@[RACObserve(self, phoneNumber)] reduce:^( NSString *phoneNumberStr){
        return @(phoneNumberStr.length == 13);
    }];
    
    //绑定 isEnableNextButton 可用条件
    RAC(self, isEnableNextButton) = [RACSignal combineLatest:@[RACObserve(self, phoneNumber), RACObserve(self, verifyCode), RACObserve(self, isAgreeProtocol)] reduce:^(NSString *phoneNumberStr, NSString *verifyCodeStr, NSNumber *isAgree){
        return @(isAgree.boolValue && phoneNumberStr.length == 13 && verifyCodeStr.length == 6);
    }];
     
}


@end

UIView

@interface HomeView : UIView

@property (nonatomic, strong) UIButton *verifyButton;
@property (nonatomic, strong) UIButton *loginButton;
@property (nonatomic, strong) UIButton *isReadButton;

@property (nonatomic, strong) UITextField *verifyField;
@property (nonatomic, strong) UITextField *phoneField;

@end

控制器

@implementation HomeVC
- (void)setRAC {
    [super setRAC];
    
    [self buttonEnable];
    [self phoneNumberCodeLimit];
}

- (void)buttonEnable {
    
    [[RACSignal merge:@[self.homeView.phoneField.rac_textSignal, RACObserve(self.homeView.phoneField, text)]] subscribeNext:^(id  _Nullable x) {
        self.homeVM.phoneNumber = self.homeView.phoneField.text;
    }];
    [[RACSignal merge:@[self.homeView.verifyField.rac_textSignal, RACObserve(self.homeView.verifyField, text)]] subscribeNext:^(id  _Nullable x) {
        self.homeVM.verifyCode = self.homeView.verifyField.text;
    }];
    
  // 勾选 阅读协议
  RAC(self.homeVM, isAgreeProtocol) = [RACSignal merge:@[RACObserve(self.homeView.isReadButton, selected)]];

  RAC(self.homeView.verifyButton, enabled) = RACObserve(self.homeVM, isEnableVerifyButton);
  //RAC(self.homeView.loginButton, enabled) = RACObserve(self.homeVM, isEnableNextButton);
  // 立即注册按钮
  RAC(self.homeView.loginButton, enabled) = self.homeVM.registerEnableSignal;
}

- (void)phoneNumberCodeLimit {
    
    __weak HomeVC *weakSelf = self;
    [self.homeView.phoneField.rac_textSignal subscribeNext:^(NSString * _Nullable x) {
        if (x.length > 13) {
            x = [x substringToIndex:x.length -1];
            weakSelf.homeView.phoneField.text = x;
            NSLog(@"手机号不能超过13位");
        }
    }];
    
    [self.homeView.verifyField.rac_textSignal subscribeNext:^(NSString * _Nullable x) {
        if (x.length > 6) {
            x = [x substringToIndex:x.length - 1];
            weakSelf.homeView.verifyField.text = x;
            NSLog(@"验证码不能超过6位");
        }
    }];
    
    [[self.homeView.verifyButton rac_signalForControlEvents:UIControlEventTouchUpInside] subscribeNext:^(__kindof UIControl * _Nullable x) {
        NSLog(@"x = %@", x);
    }];
    
    [[self.homeView.loginButton rac_signalForControlEvents:UIControlEventTouchUpInside] subscribeNext:^(__kindof UIControl * _Nullable x) {
        NSLog(@"x = %@", x);
    }];
    
}
@end