CODEWITHSUNDEEP
iphoneios4
Virat Naithani
Virat Naithani

Reputation: 783

data passing in navigation based application

i am working on a navigation based application in the rootviewcontroller i hav a few UITextFields. There is a button on rootviewController, on clicking that button i am changing the view using pushviewcontroller. I want to use values entered in these UItextFields in mapview ie my 2nd view.

PLZ suggest me something.

Upvotes: 0

Views: 142

Answers (3)

Deepak Danduprolu
Deepak Danduprolu

Reputation: 44633

Use an NSDictionary object to store the values from the first controller. Say you are using two text fields – textField1 and textField2.

- (void)loadSecondController {
    NSDictionary *values = [NSDictionary dictionaryWithObjectsAndKeys:textField1.text, @"textField1", textField2.text, @"textField2", nil];

    // Assuming you are using IB files
    SecondViewController *controller = [[SecondViewController alloc] initWithNibName:nil bundle:nil];
    controller.values = values; // Declare a NSDictionary property 'values' in SecondViewController
    [self.navigationController pushViewController:controller animated:YES];
    [controller release];
}

Now in SecondViewController, you can access them as 

...
textField1Value = [values objectForKey:@"textField1"];
textField2Value = [values objectForKey:@"textField2"];
...

Upvotes: 1

iamsult
iamsult

Reputation: 1579

Before pushing assign the values to the second controller. Say you have to send value of textfield1. Now

secondController.textfield1 = textfield1;

Then do your pushing of controller.

Upvotes: 1

Jhaliya - Praveen Sharma
Jhaliya - Praveen Sharma

Reputation: 31720

you could pass all the information to your second controller before pushing to navigation stack.

See the pseudo code for your reference :

First:

MyMapController* myController = [MyMapController alloc] initWithValues:Value1,value2,value3,......valuen];
[self.navigationController pushViewController:myController animated:YES];

[myController release];
myController = nil;

Second:

MyMapController* myController = [MyMapController alloc] init];

myController.value1 = value1;
myController.value2 = value2;
myController.value3 = value3;
............

myController.value7 = value7;
myController.value8 = value8;
[self.navigationController pushViewController:myController animated:YES];

[myController release];
myController = nil;

There could be more approach for sending the data,

Upvotes: 1

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