CODEWITHSUNDEEP
ios
avi
avi

Reputation: 117

Switch state not linking to Label

For some reason using NSUserDefaults to save the state of my switch and my label don't seem to be working. I can save the state of my switch and load it however unless i manually change the state of the switch the label will not change to on or off.

        NSUserDefaults *standardDefaults = [NSUserDefaults standardUserDefaults];

    self->switch1.on = ([[standardDefaults stringForKey:@"switchKey"]

                             isEqualToString:@"On"]) ? (YES) : (NO);

As you can see i added in label.text = @"OFF" when the switch is off but however it still doesn't change.

- (IBAction)switchChanged:(UISwitch *)sender {

NSUserDefaults *standardDefaults = [NSUserDefaults standardUserDefaults];

if (sender.on == 0) {

    label.text = @"OFF";
    [standardDefaults setObject:@"Off" forKey:@"switchKey"];


} else if (sender.on == 1) {

    label.text = @"ON";
    [standardDefaults setObject:@"On" forKey:@"switchKey"];


}

[standardDefaults synchronize];

}

Before i wanted to save the switch state i just used this.

-(IBAction) alarmSettings1{

if (switch1.on)

{ label.text = @"ON";}


else { label.text = @"OFF";}

}

I know I'm just doing something simple wrong but can't figure out what.

Upvotes: 1

Views: 46

Answers (1)

dokun1
dokun1

Reputation: 2110

You should set your boolean like so:

[[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"switchKey"];
[[NSUserDefaults standardUserDefaults] synchronize];

So when you want to set the state of your switch, you would do:

BOOL switchState = [[NSUserDefaults standardUserDefaults] objectForKey:@"switchKey"]; 
self.switch1.on = switchState;

Also, in your IBAction method, read the state like so:

- (IBAction)switchChanged:(UISwitch *)sender {
    label.text = sender.on ? @"ON" : @"OFF";
    [[NSUserDefaults standardUserDefaults] setBool:sender.on forKey:@"switchKey"];
    [[NSUserDefaults standardUserDefaults] synchronize];
}

Upvotes: 0

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