ios - 为什么我的 uiswitch 变得困惑

Question

我在一个 View Controller 上有 4 个 ui 开关，其中两个工作正常，但最后两个已设置，因此您只能单击任一组或两个播放器，但是当您单击两个播放器然后单击保存并返回时打开两个开关，但是如果你在组中做同样的事情，它不会这样做吗？

有人看到我在这里做错了什么吗？

   -(void)stateSwitched:(id)sender {
    UISwitch *tswitch = (UISwitch *)sender;
    NSUserDefaults *defaults =[NSUserDefaults standardUserDefaults];
    [defaults setObject: tswitch.isOn ? @"YES" : @"NO" forKey:@"truthonoff"];

    [defaults synchronize];
}

-(void)stateSwitcheddare:(id)sender {
    UISwitch *tswitch = (UISwitch *)sender;
    NSUserDefaults *defaults =[NSUserDefaults standardUserDefaults];
    [defaults setBool: tswitch.isOn forKey:@"groupswitch"];
    [defaults setBool: tswitch.isOn forKey:@"twoplayerswitch"];
    [defaults synchronize];
}

-(void)stateSwitchedtwoplayer:(id)sender {
    UISwitch *tswitch = (UISwitch *)sender;
    //turns two player off when on and soforth

    self.groupswitch.on =! tswitch.isOn;
    NSUserDefaults *defaults =[NSUserDefaults standardUserDefaults];
    [defaults setBool: tswitch.isOn forKey:@"twoplayerswitch"];
    [defaults setBool: !tswitch.isOn forKey:@"groupswitch"];

    [defaults synchronize];
}

-(void)stateSwitchedgroup:(id)sender {
    UISwitch *tswitch = (UISwitch *)sender;
    //turns two player off when on and soforth
    self.twoplayerswitch.on =! tswitch.isOn;
    NSUserDefaults *defaults =[NSUserDefaults standardUserDefaults];
    [defaults setBool: tswitch.isOn forKey:@"groupswitch"];
    [defaults setBool: tswitch.isOn forKey:@"twoplayerswitch"];
    [defaults synchronize];
}

刚刚意识到我在 viewdidload 上运行它可能会影响它？

[self.twoplayerswitch setOn:[[defaults objectForKey:@"twoplayerswitch"] boolValue] animated:YES];

[self.twoplayerswitch addTarget:self action:@selector(stateSwitchedtwoplayer:) forControlEvents:UIControlEventValueChanged];

[self.groupswitch setOn:[[defaults objectForKey:@"groupswitch"] boolValue] animated:YES];

[self.groupswitch addTarget:self action:@selector(stateSwitchedgroup:) forControlEvents:UIControlEventValueChanged];

Answer 1

在 stateSwitchedtwoplayer 方法中，您可能会更改 self.groupswitch.on 的状态，但不会将更改保存到 NSUserDefaults。