ReactiveCocoa实践

1.按钮addTarget

    [[self.aDepositBtn rac_signalForControlEvents:UIControlEventTouchUpInside] subscribeNext:^(__kindof UIControl * _Nullable x) {

        //点击处理

    }];

2.View加tap事件

    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] init];

    @weakify(self);

    [[tap rac_gestureSignal] subscribeNext:^(id x) {

        @strongify(self);

    }];

    [infoView addGestureRecognizer:tap];

3.KVO监听对象的某个属性

    [RACObserve(self.mobileTextField, text) subscribeNext:^(id  _Nullable x) {

        NSString * text = (NSString *)x;

        if (text.length) {

            //将提交按钮置为蓝色

            

        } else {

            //将提交按钮置为灰色

        }

    }];

4.通知传值

    [[NSNotificationCenter defaultCenter] postNotificationName:@"RACNotification" object:@[@"1",@"2"]];

    [[[NSNotificationCenter defaultCenter]rac_addObserverForName:@"RACNotification" object:nil]subscribeNext:^(id x) {

        NSLog(@"%@",x);

    }];

5.UITextField输入结束等类似的代理方法

 

    [[self.textField rac_signalForControlEvents:UIControlEventEditingDidEnd] subscribeNext:^(id x){

        //x是textField对象

        NSLog(@"%@",x);

    }];

 6.监听视图Frame更新UI

    [RACObserve(_mAreaView, frame) subscribeNext:^(id  _Nullable x) {

        CGRect rect = [x CGRectValue];

        //更新UI

    }];