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April 19, 2017 10:36
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ReactiveCocoa signal for keyboard done button taps
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| #import "UITextField+RACKeyboardSupport.h" | |
| #import <ReactiveCocoa/RACEXTScope.h> | |
| #import <ReactiveCocoa/NSObject+RACDescription.h> | |
| @implementation UITextField (RACKeyboardSupport) | |
| - (RACSignal *)rac_keyboardReturnSignal { | |
| @weakify(self); | |
| return [[[[RACSignal | |
| defer:^{ | |
| @strongify(self); | |
| return [RACSignal return:self]; | |
| }] | |
| concat:[self rac_signalForControlEvents:UIControlEventEditingDidEndOnExit]] | |
| takeUntil:self.rac_willDeallocSignal] | |
| setNameWithFormat:@"%@ -rac_keyboardReturnSignal", [self rac_description]]; | |
| } | |
| @end |
I had to add a skip:1 before concat: to skip the initial next call. Otherwise my UI logic would be executed as soon as I setup my bindings which isn't the contract of the function imho. It should only trigger next if the user really hits the return button.
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Maybe this license: http://en.wikipedia.org/wiki/WTFPL