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Help me in adding objects in array of app delegate from UIViewController in Objective-C I guess I am doing mistake, help me in this regard

I want to add objects in array of app delegate from view controller

in appdelegate.h

@property (nonatomic, retain) NSMutableArray *sharedArray;

in appdelegate.m 

@implementation AppDelegate
@synthesize sharedArray;

inside didfinishlaunching

self.sharedArray = [[NSMutableArray alloc] init];

in ViewController

@interface ViewController () {

    UIApplication *appDelegate;


Inside viewdidload of viewcontroller

appDelegate = [[UIApplication sharedApplication] delegate];
[appdelegate.sharedArray addObject:array];
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9
  • can you explain what you want to do? Commented Apr 11, 2018 at 10:56
  • What is your problem here? Anyway, you don't need to declare appDelegate in ViewController Commented Apr 11, 2018 at 10:57
  • I want to add objects in array of app delegate from view controller Commented Apr 11, 2018 at 10:57
  • @iOSDeveloper check Anbu's answer. Commented Apr 11, 2018 at 10:59
  • 1
    import AppDelegate where you want to use that Commented Apr 11, 2018 at 11:13

2 Answers 2

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2

Your code is fine and correct, but you need to initialize the memory of your array before append the object

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.

    self. sharedArray = [NSMutableArray array];

    return YES;
}

finally call the method as

AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
 [appDelegate.sharedArray addObject:array];

finally import the header 

#import "AppDelegate.h"
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3 Comments

I have added self.sharedArray = [[NSMutableArray alloc] init];
@RealmOfFire- sure bro, it works, we need the conformation from questioner
@Anbu.karthik upvoted your answer, but I forgot to import the app delegate
1

Change declaration of 

UIApplication *appDelegate;

to 

AppDelegate *appDelegate;

//

self.appDelegate =  (AppDelegate *)[[UIApplication sharedApplication] delegate];

// on top you should

#import "AppDelegate.h"
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2 Comments

Unknown type name 'AppDelegate' it gives this error when doing this
Happy coding ;)

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