ios - ReactiveCocoa 两个开关互异绑定怎么写？-PHP Chinese Network Q&A

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ios - ReactiveCocoa 两个开关互异绑定怎么写？

PHP中文网 2017-04-18 09:33:25

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假设有两个 Siwtch 需要互异绑定，用 rac 该怎么写？

UISwitch *switch1; UISwitch *switch2; switch1.action = { switch2.on = !switch2.on; } switch2.action = { switch1.on = !switch1.on; }

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刘奇2017-04-18 09:35:25 2 floor

Is this so?

switch1.on = YES; switch2.on = NO; RACChannelTerminal *t1 = switch1.rac_newOnChannel; RACChannelTerminal *t2 = switch2.rac_newOnChannel; [[t1 map:^id(NSNumber *on) { return @(![on boolValue]); }] subscribe:t2]; [[t2 map:^id(NSNumber *on) { return @(![on boolValue]); }] subscribe:t1];

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Peter_Zhu2017-04-18 09:35:25 1 floor

Found a solution:

RACChannelTerminal *aButtonChannel = [aButton rac_newSelectedChannel]; RACChannelTerminal *bButtonChannel = [bButton rac_newSelectedChannel]; [[aButtonChannel not] subscribe:bButtonChannel]; [[bButtonChannel not] subscribe:aButtonChannel];

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