Example 1:
- (NSString *)userToken
{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
return [userDefaults objectForKey:#"userToken"];
}
- (void)setUserToken:(NSString *)userToken
{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults setObject:userToken forKey:#"userToken"];
}
- (NSString *)userName
{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
return [userDefaults objectForKey:#"userName"];
}
- (void)setUserName:(NSString *)userName
{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults setObject:userName forKey:#"userName"];
[userDefaults synchronize];
}
These getter and setter are very similar. Is there a smart "macro" that can help me to simplify the codes? So I will be able to write few codes for each property like this:
XXXX(userToken)
XXXX(userName)
Example 2:
+ (MyManager *)sharedManager {
// singleton
...
}
- (void)updateName:(NSString *)name {
self.name = name;
}
+ (void)updateName:(NSString *)name {
return [[self sharedManager] updateName:name];
}
- (void)updateUid:(NSString *)uid {
self.uid = uid;
}
+ (void)updateUid:(NSString *)uid {
return [[self sharedManager] updateUid:uid];
}
I want a way to write them efficiently, too.
What can I do?
Related
I wanted to know how to save the position of a switch to close and open the application ?
-(IBAction)switch_poids_passagers:(UISwitch *)sender {
NSString *poids_passagers_total;
if(sender.on) {
poids_passagers_total = #"1";
} else {
poids_passagers_total = #"2";
}
[[NSUserDefaults standardUserDefaults] setObject:poids_passagers_total forKey:#"poids_passagers_total"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
NSUserDefaults can save and retrieve BOOLS with a pair methods it provides:
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setBool:self.myUISwitch.on forKey:#"switchValue"];
// ...
Later on, maybe in viewWillAppear...
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
BOOL switchValue = [defaults boolForKey:#"switchValue"];
self.myUISwitch.on = switchValue;
I have a class called "EntityType" that has a string "name" and I am using NSUserDefaults to save it so I tried this:
if (button.selected)
{
[button setSelected:YES];
[[NSUserDefaults standardUserDefaults]setObject:[NSNumber numberWithBool:YES] forKey:#"buttonSelected"];
}
I want to access the variable from another class and save it inside NSUserDefaults
You have missed sync call.Apply this to save it.
if (button.selected)
{
[button setSelected:YES];
[[NSUserDefaults standardUserDefaults]setObject:[NSNumber numberWithBool:YES] forKey:#"buttonSelected"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
to get it back later
NSNumber* savedValue = [[NSUserDefaults standardUserDefaults]
objectForKey:#"buttonSelected"];
This is if you want to store only the value.
If you want to store your custom object look at this link
How to store custom objects in NSUserDefaults
You can get NSNumber object like,
NSNumber *num = [[NSUserDefaults standardUserDefaults] objectForKey:#"buttonSelected"];
from anywhere in the app.
On your EntityType class, implement the following two methods for encoding and decoding (something relevant to your own object):
- (void)encodeWithCoder:(NSCoder *)encoder {
//Encode properties, other class variables, etc
[encoder encodeObject:self.name forKey:#"name"];
}
- (id)initWithCoder:(NSCoder *)decoder {
if((self = [super init])) {
//decode properties, other class vars
self.name = [decoder decodeObjectForKey:#"name"];
}
return self;
}
Reading and writing from NSUserDefaults:
- (void)saveCustomObject:(MyObject *)object key:(NSString *)key {
NSData *encodedObject = [NSKeyedArchiver archivedDataWithRootObject:object];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:encodedObject forKey:key];
[defaults synchronize];
}
- (MyObject *)loadCustomObjectWithKey:(NSString *)key {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSData *encodedObject = [defaults objectForKey:key];
MyObject *object = [NSKeyedUnarchiver unarchiveObjectWithData:encodedObject];
return object;
}
Code borrowed from: save class in NSUserDefaults
**ViewController.h**
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController
//here i took one userdefault property
#property(strong,nonatomic)NSUserDefaults *user;
#end
**ViewController.m**
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
//after the property declaration take standard user defaults
_user = [NSUserDefaults standardUserDefaults];
//here i took Bool and key you can take any thing but took my_val
[_user setBool:YES forKey:#"my_val"];
}
// this is button action
- (IBAction)submit:(id)sender
{
//for bool i am checking the condition given above
if ([_user boolForKey:#"my_val"])
{
**enter code here**
NSLog(#"values is set to yes");
}
else
{
**enter code here**
NSLog(#"Value is set to No");
}
}
Can anyone give me any link or file, which could be used globally for a project to Store data to NSUserDefault.
Which contains method to save dictionary, array,string,integer all.
#import <Foundation/Foundation.h>
#import "BSUser.h"
#interface CLServerDataManager : NSObject
+(BOOL) saveServerDataToUserDefaults:(id)data;
+(NSDictionary*) getServerDataFromUserDefaults;
//For language Selection
+(void) setLanguage:(NSString*)LanguageName;
+(NSString*) getLanguage;
+(void) setUserPassword:(NSString*)password;
+(NSString*) getUserPassword;
+(void) setUserID:(NSString*)password;
+(NSString*) getUserID;
+(void) setUserUUID:(NSString*)uuid;
+(NSString*) getUserUUID;
+(void) setUserName:(NSString*)name;
+(NSString*) getUserName;
+(void) setimagedata:(float)data;
+(float) getimagedata;
+(void) setUserProfile:(BSUser*)user;
+(BSUser*) getUserProfile;
+ (void) setApplicationPurchaseStatus:(BOOL)purchaseStatus forUser:(NSString*)fbUserID;
+ (BOOL) getApplicationPurchaseStatusforUser:(NSString*)fbUserID;
+ (void) sethintAndTutorial:(BOOL)hintState;
+ (BOOL) gethintAndtutorial;
+ (void) setDeviceToken:(NSString*)deviceToken;
+ (NSString*) getDeviceToken;
//Methods for clear all data from user defaults
+ (void) resetServerDataManager;
#end
and .m file for this
#import "CLServerDataManager.h"
#import "ClConfig.h"
#implementation CLServerDataManager
+(BOOL) saveServerDataToUserDefaults:(id)data {
// if (!data) {
// return NO;
// }
// NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
// [defaults setObject:data forKey:USER_ID];
// [defaults synchronize];
// return YES;
return NO;
}
+(NSDictionary*) getServerDataFromUserDefaults {
// NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
// NSDictionary* rememberMe = [defaults objectForKey:USER_ID];
// if (rememberMe == nil) {
// return nil;
// }
// return rememberMe;
return nil;
}
//For the store user select language and again fetch
+(void) setLanguage:(NSString*)LanguageName {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:LanguageName forKey:#"Language"];
[defaults synchronize];
}
+(NSString*) getLanguage {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString* Mylanguage = [defaults objectForKey:#"Language"];
if (Mylanguage == nil) {
return nil;
}
return Mylanguage;
}
//for store information cache for user's pics download
+(void) setimagedata:(float)data{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:[NSNumber numberWithFloat:data] forKey:#"cache"];
[defaults synchronize];
}
+(float)getimagedata{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
float data = [[defaults objectForKey:#"cache"] floatValue];
if (data == 0) {
return 0;
}
return data;
}
+(void) setUserPassword:(NSString*)password {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:password forKey:#"password"];
[defaults synchronize];
}
+(NSString*) getUserPassword {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString* rememberMe = [defaults objectForKey:#"password"];
if (rememberMe == nil) {
return nil;
}
return rememberMe;
}
+(void) setUserID:(NSString*)password {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:password forKey:#"userID"];
[defaults synchronize];
}
+(NSString*) getUserID {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString* rememberMe = [defaults objectForKey:#"userID"];
if (rememberMe == nil) {
return nil;
}
return rememberMe;
}
+(void) setUserUUID:(NSString*)uuid {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:uuid forKey:#"userUUID"];
[defaults synchronize];
}
+(NSString*) getUserUUID {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString* rememberMe = [defaults objectForKey:#"userUUID"];
if (rememberMe == nil) {
return nil;
}
return rememberMe;
}
+(void) setUserName:(NSString*)name {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:name forKey:#"userName"];
[defaults synchronize];
}
+(NSString*) getUserName {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString* name = [defaults objectForKey:#"userName"];
if (name == nil) {
return nil;
}
return name;
}
//store the current login user profile to user defaults
+(void) setUserProfile:(BSUser*)user {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:[NSKeyedArchiver archivedDataWithRootObject:user] forKey:#"user_profile"];
[defaults synchronize];
}
+(BSUser*) getUserProfile {
BSUser* returnObject = nil;
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSData *dataRepresentingSavedArray = [defaults objectForKey:#"user_profile"];
if (dataRepresentingSavedArray != nil)
{
returnObject = (BSUser*)[NSKeyedUnarchiver unarchiveObjectWithData:dataRepresentingSavedArray];
}
return returnObject;
}
+ (void) setApplicationPurchaseStatus:(BOOL)purchaseStatus forUser:(NSString*)fbUserID {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:[NSNumber numberWithBool:purchaseStatus] forKey:fbUserID];
[defaults synchronize];
}
+ (BOOL) getApplicationPurchaseStatusforUser:(NSString*)fbUserID {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSNumber* purchased = [defaults objectForKey:fbUserID];
if (purchased == nil) {
return NO;
}
return [purchased boolValue];
}
#pragma mark Set hint and tutotrial
+ (void) sethintAndTutorial:(BOOL)hintState{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:[NSNumber numberWithBool:hintState] forKey:#"hint"];
[defaults synchronize];
}
+ (BOOL) gethintAndtutorial{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSNumber* hintstate = [defaults objectForKey:#"hint"];
if (hintstate == nil) {
return NO;
}
return [hintstate boolValue];
}
+ (void) setDeviceToken:(NSString*)deviceToken {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:deviceToken forKey:#"DeviceToken"];
[defaults synchronize];
}
+ (NSString*) getDeviceToken {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString* name = [defaults objectForKey:#"DeviceToken"];
if (name == nil) {
return nil;
}
return name;
}
+ (void) resetServerDataManager {
[[self class] setLanguage:nil];
[[self class] setUserID:nil];
[[self class] setUserName:nil];
[[self class] setUserPassword:nil];
[[self class] setUserProfile:nil];
[[self class] setUserUUID:nil];
NSHTTPCookie *cookie;
NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (cookie in [storage cookies])
{
NSString *domainName = [cookie domain];
NSRange domainRange = [domainName rangeOfString:#"facebook"];
if(domainRange.length > 0)
{
[storage deleteCookie:cookie];
}
}
}
Try below link, You will get thing which you need..
NSUserDefaults
defaults = [NSUserDefaults standardUserDefaults];
NSLog(#"%#",[defaults objectForKey:#"firsttime"])
if([[defaults objectForKey:#"firsttime"]isEqualToString:#"YES"])
{
UISwitch *onoff = (UISwitch *) sender;
if(onoff.on)
{
NSLog(#"yes on1 facebookswitch");
facebookSwitch.on = YES;
[userDefault setValue:#"true" forKey:#"facebooknotify"];
NSLog(#"on");
if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook]) {
[validate alertCommonWithoutMessage:NSLocalizedString(#"val_message",nil) :NSLocalizedString(#"val_facebook_login",nil) :#"OK"];
facebookSwitch.on = YES;
NSLog(#"yes on2 facebookswitch");
}
else {
NSLog(#"val_facebook_conf");
[validate alertCommonWithoutMessage:NSLocalizedString(#"val_message",nil) :NSLocalizedString(#"val_facebook_conf",nil) :#"OK"];
facebookSwitch.on = NO;
[userDefault setValue:#"false" forKey:#"facebooknotify"];
NSLog(#"yes off1 facebookswitch");
I'm using this method,but sumtimes the response is null.
Try this code:
// add this code in your switch touch event
- (IBAction)YourSwitch:(UISwitch*)sender
{
if (UISwitch.on)
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setBool:true forKey:#"Sound"];
[defaults synchronize];
}
else
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setBool:false forKey:#"Sound"];
[defaults synchronize];
}
}
// add this code in your viewDidload .
BOOL isSound= [[NSUserDefaults standardUserDefaults] objectForKey:#"Sound"];
if (isSound){
_ref_slider.on=TRUE;
} else {
_ref_slider.on=FALSE;
}
i hope this code is useful for you.
As to why it's not working, the most common problem is [userDefault synchronize]
Also, rather than using string boolean values, why not use:
[userDefault setBool:YES forKey:#"facebooknotify"];
and then access by
BOOL notified = [userDefault boolForKey:#"facebooknotify"];
I have a class where i store my methods:
.h file:
#import <Foundation/Foundation.h>
#interface SessionController : NSObject
-(void) addSession :(NSString *)userName
tipulContului:(NSString *)tipCont;
-(void) destroySession : (NSString *) userName;
-(NSString *) getSessionUsername;
-(NSString *) getSessionTipCont;
#end
.m file:
#import "SessionController.h"
#implementation SessionController
-(void) addSession : (NSString *)userName
tipulContului :(NSString *)tipCont
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:userName forKey:#"SessionUsername"];
[defaults setObject:tipCont forKey:#"SessionTipCont"];
NSLog(#"------------------------------------------------");
//NSLog(#"%#", [[NSUserDefaults standardUserDefaults] dictionaryRepresentation]);
NSLog(#"%#", userName);
[defaults synchronize];
}
-(void) destroySession : (NSString *) userName
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults removeObjectForKey:#"SessionUsername"];
[defaults removeObjectForKey:#"SessionTipCont"];
[defaults synchronize];
}
-(NSString *) getSessionUsername
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
// verificam existenta utilizatorului
if([defaults stringForKey:#"SessionUsername"]!=nil && ![[defaults stringForKey:#"SessionUsername"] isEqual:#""]){
return [defaults stringForKey:#"SessionUsername"];
}
else
return nil;
}
-(NSString *) getSessionTipCont
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
// verificam existenta Tipului de cont
if([defaults objectForKey:#"SessionTipCont"]!=nil && ![[defaults stringForKey:#"SessionTipCont"] isEqual:#""]){
return [defaults stringForKey:#"SessionTipCont"];
}
else
return nil;
}
#end
Than i call call the method from an external class like this
SessionController *sessionController;
[sessionController addSession:name tipulContului:type];
But the NSLog from the addSession method isn't called and the values that i send to the method aren't stored, it compiles and i don't have any warnings, what am i doing wrong?
You need to initialize your sessionController object
SessionController* sessionController = [[SessionController alloc] init];
The hyphen before the method name indicates the method is an "instance" method. You'll need to instantiate the object to utilize these. You're almost doing this. Try:
SessionController *sessionController = [[SessionController alloc] init];