ios - How to use shared preference in xcode using objective-c? -


this question has answer here:

in 1 view controller, store array value , value view controller. how save array value in shared manager , how retrieve array value view controller? how use shared preference in xcode? possible? please me example.thank you.

my code is

  • (id)sharedmanager {

    static assistantview *sharedmymanager = nil;

    static dispatch_once_t oncetoken;

    dispatch_once(&oncetoken, ^{ sharedmymanager = [[self alloc] init]; });

    return sharedmymanager; }

and put value

[[assistantview sharedmanager]results]; // results array

use nsuserdefaults

set

[[nsuserdefaults standarduserdefaults] setobject:@"your object" forkey:@"nameofpreference"]; [[nsuserdefaults standarduserdefaults] synchronize];

get

nsstring *savedobject = [[nsuserdefaults standarduserdefaults]     stringforkey:@"nameofpreference"]; // object

alternative using appdelegate

1 define macro 

#define appdelegate  ((appdelegate *)[[uiapplication sharedapplication] delegate])

2 add property object in appdelegate

@property (nonatomic) nsarray *arrobjects;

3 set object property .

  appdelegate.arrobjects = @[@"",@""];

4 value 

  nsarray *globalobjects = appdelegate.arrobjects

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