I am wondering if there is a way to maintain user input when navigating back and forth to my main menu using the UINavigationBar back arrow using NSCoder. I am currently using NSCoder to maintain this data during background/terminate/restart and NSUserDefaults to maintain data between views, but the combination of NSCoder and NSUserDefaults is giving unpredictable results. Sometimes, both types of restoration work, but sometimes the BG/Term/RS restoration does not work, and I am talking about loading the same identical code on my device. When the NSUserDefaults code is commented out, the BG/Term/RS restoration works every time.
I would like to know if it is possible to use NSCoder for all of my restoration needs, and if so, what that code would look like.
This is what I am using for BG/Term/RS restoration:
-(void)encodeRestorableStateWithCoder:(NSCoder *)coder {
// start level text
[coder encodeObject:_startLevel.text forKey:@"startText"];
// stop level text
[coder encodeObject:_stopLevel.text forKey:@"stopText"];
}
-(void)decodeRestorableStateWithCoder:(NSCoder *)coder {
// start level text
_startLevel.text = [coder decodeObjectForKey:@"startText"];
// stop level text
_stopLevel.text = [coder decodeObjectForKey:@"stopText"];
}
This is the NSUserDefaults code that I am currently using to persist data back and forth between my menu and main view, and which I would ideally like to replace with an NSCoder solution:
- (void)viewWillDisappear:(BOOL)animated {
[super viewWillDisappear:animated];
// start level
[[NSUserDefaults standardUserDefaults] setObject:_startLevel.text
forKey:@"startLevelRestore"];
// stop level
[[NSUserDefaults standardUserDefaults] setObject:_stopLevel.text
forKey:@"stopLevelRestore"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
// start level
[_startLevel setText:[[NSUserDefaults standardUserDefaults]
objectForKey:@"startLevelRestore"]];
// stop Level
[_stopLevel setText:[[NSUserDefaults standardUserDefaults]
objectForKey:@"stopLevelRestore"]];
[[NSUserDefaults standardUserDefaults] synchronize];
}
I have been battling this issue for a couple of days with no luck. Any help would be greatly appreciated! Thanks.
