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

}];