Question

I have taken UISwitch from interface builder. That time it’s state is ON.After run application When I change it’s position to OFF and go to other screen and again back to that screen, switch sates shows ON not OFF which i set previously. Any one can tell me how i can show UISwitch position or state which I set. Now it always show ON when I come to this switch screen. Please help me. Thanks in advance.

Answer 1

When you change the value, save it to NSUserDefault, so when you come back that screen again, you look at the preferences value and set it to the switch

- (void)saveValue  {
    NSUserDefaults *preferences = [NSUserDefaults standardUserDefaults];
    [preferences setBool:value forKey:@"switchOnOff"];
    [preferences synchronize];
}

- (BOOL)readValue  {
    NSUserDefaults *preferences = [NSUserDefaults standardUserDefaults];
    return [preferences boolForKey:@"switchOnOff"];
}