ios - ReactiveCocoa : why rac_textSignal doesn't work

Question

为什么这不起作用:

[self.phoneTextField.rac_textSignal subscribeNext:^(NSString *text) {
    self.viewModel.textFieldText = text;
}];

虽然这很好用，即使点击清除按钮也是如此:

RAC(self.viewModel, textFieldText) = RACObserve(self.phoneTextField, text);

?

Answer 1

rac_textSignal 仅在 UIControlEventAllEditingEvents 触发时才会触发，并且清除时不会发生这种情况。这是两种情况的解决方法:

[[RACSignal 
  merge:@[self. phoneTextField.rac_textSignal, RACObserve(self.phoneTextField, text)]] 
  subscribeNext:^(NSString* text) {
      // do something here
  }];

BR,