I have the NSMutableArray property in ViewController.h Now i want to get this Array value from appdelegate. Is it possible can anyone help me to do that.
In viewcontroller.h
@property (nonatomic, retain) NSMutableArray *fullImg;
In viewcontroller.m
@synthesis fullImg;
I also assigned values for fullImg. Now i want to get that value in app delegate.
Thanks in advance.
top file: #import "AppDelegate.h"
in place you want to use the array:
AppDelegate *ap = [[UIApplication sharedApplication] delegate];
ap.fullImg // -> USE IT HOW YOU WANT
...
You can put the whole NSMutableArray into NSUserDefaults with a key e.g.
In app delegate:
NSUserDefaults *def=[NSUserDefaults StanderUserDefaults];
[def setObject:fulImg forKey:@"ImageArray"];
In ViewController class:
NSUserDefaults *def=[NSUserDefaults StanderUserDefaults];
NSMutableArray *yourimgarry=[def valueForKey:@"ImageArray"];
When you create the object for viewController class, you can pass the array reference to the viewController by creating new custom constructor. i.e,
//in appdidFinishLaunchingWithOptions
ViewController *viewController = [[ViewController alloc] initWithArray:fullImgArray];
self.window.rootViewController = viewController;
// In ViewController.h
- (id)initWithArray:(NSMutableArray *)fullImgArray;
// In ViewController.m
- (id)initWithArray:(NSMutableArray *)fullImgArray
{
self = [super init];
if (self)
{
self.fulImg = fullImgArray;
}
return self;
}
There are two possibilities.
Using appDelegate. Use a property in app delegate to pass data between ViewContriollers
and AppDelegate.
in first controller
MyAppdeleagte appDelegate=[[UIApplication sharedApplication]delegate]; appDelegate.fullImg=dataToPass;
in the second controller
MyAppdeleagte appDelegate=[[UIApplication sharedApplication]delegate]; data=appDelegate.fullImg;
in AppDelegate
self.fullImg=data;
2.Specifying object Instance.
in your ViewController after allocating the AppDelegate , specify that the object instance in the current viewController is same as the one in AppDelegate. For this declare a NSMutableArray property in AppDelegate.
in AppDelegate.h
@property NSMutableArray *fullImg;
in ViewController.h
MyAppdeleagte appDelegate=[[UIApplication sharedApplication]delegate];
appDeleagte.fullImg=self.fullImg;
