Send array to viewcontroller iOS xcode - iphone

Question

I have 2 view controller:
Index
Second
In Index I have 2 textfield and button.
I fill this text field and press "next button" to second view, I need to "show" this two text field, by using Array (later I will send JSON data).
I Tried this:
Declare an #property in class Second as textArray. And then while pushing to Second from Index, you need to set this property.
In Second.h file,
#property(nonatomic, strong) NSArray *textArray;
In Index.m file,
Second *aSecond = [[Second alloc] init];
aSecond.textArray = #[textField1.text, textField2.text];
//write code to push from Index to Second
Now in class Second, you can use it as aSecond.textArray[0] and aSecond.textArray[1]
But if i switch page (click next) array has been nulled.
For switch page i use this:
SecondPage *SecondPage = [self.storyboard instantiateInitialViewController];
SecondPage = [self.storyboard instantiateViewControllerWithIdentifier:#"SecondPage"];
[self SecondPage animated:YES];
How I can best realize? Please help! Best regards
Ivan.

Answer 1

Write your own designated initializer for second view controller something like.
-(id)initWithTextArray:(NSArray *)_textarray;
Now alloc init the second view controller
Second *aSecond = [[Second alloc] initWithTextArray:array];
in the viewDidLoad method of second view controller use your textarray to populate your views.

Answer 2

You need to do it like this if you are using it via storyboard,
SecondPage *aSecondPage = [self.storyboard instantiateInitialViewController];
aSecondPage = [self.storyboard instantiateViewControllerWithIdentifier:#"SecondPage"];
aSecond.textArray = #[textField1.text, textField2.text];
[self aSecondPage animated:YES];
When you do this aSecond = [[Second alloc] init]; and then do aSecondPage = [self.storyboard instantiateViewControllerWithIdentifier:#"SecondPage"];, it is creating a separate instance and not the same instances. You were setting this array on the first one and expecting it to be set on the second instance.

Answer 3

Hey had you tried for 'Global variable & Array with Delegate Method'. It'll not release till you'll remove. It'll be global till the application instance.
In Delegate Class,
.h File
NSMutableArray *obj;
.m file,
Synthesize & Alloc - init array.
Then,
In ViewContoller .m file
AppDelegate *app;
app = (AppDelegate *)[[UIApplication sharedApplication] delegate];
then,
[app.obj addObject: text1.text];
In Second .m file, you can use it.
NSLog(#" Data : %#", app.obj);
Keep in mind, whenever you want this array, you should initialize 'app' object of 'Delegate' class.
It'll work & stores data globally.
Thanks.

Answer 4

I can think of two methods:
1) Either add a method in Second and after initializing call it and pass the value as an argument to a method. so in Second.m -(void) push :(NSArray *)array{} pass it with "&" before your NSArray name.
2) Create a getter in First. Since its NS, you have to use assign so in First.h you put #property(nonatomic, assign) NSArray *array1;
In First.m you add the #synthesize array1;
and call it with
self.array1 = [#"t", #"e", #"s", #"t"];
And then pass the reference to First class in Second and create a variable in Second.m and get it
NSArray *array1 = first.array1;
You can write your own getter, but not reasonable.

Answer 5

SecondPage *SecondPage = [self.storyboard instantiateInitialViewController];
SecondPage = [self.storyboard instantiateViewControllerWithIdentifier:#"SecondPage"];
[self SecondPage animated:YES];
1) Your variable name and your class name are the same
2) I'm not sure XCode accepted that you wrote [self SecondPage animated:YES];
Finally, did you alloc your array ?
EDIT;
Oh and :
aSecond.textArray = #[textField1.text, textField2.text];
You should write:
[aSecond.textArray addObject:textField1.text]; // using NSMutableArray

Answer 6

There are lot of ways to transfer the value from one controller to an other, but for you I think this will be the most simple ever. Use NSUserDefaults
First Easy Ways
in first Controller
[[NSUserDefaults standardUserDefaults] setObject:#[textField1.text, textField2.text] forKey:#"listOfData"];
in 2nd Controller
NSArray *array = [[NSUserDefaults standardUserDefaults]objectForKey:#"listOfData"];
2nd Easy ways is
DetailVC *detailVC = [self.storyboard instantiateInitialViewController];
detailVC = [self.storyboard instantiateViewControllerWithIdentifier:#"DetailVC"];
detailVC.textArray = #[textField1.text, textField2.text];