call multiple view controller in didSelectrow uitableview

Question

i am using two protocol something like this:

@protocol ModalClosedProtocol <NSObject>

-(void) modalClosedGlobalProtocolMethod;

@end

and syncmlClient Protocol.

There are three classes ContactsViewController, EventViewController, ImageSettingViewController.These classes use ModalclosedProtocol and syncmlClient protocol.all these three classes expects from SettingViewController class to implement ModalClosedProtocol and syncmlClient protocol.It is just a short overview of current implementation.
In my SettingViewController i am handling table delegate method didSelectRow.for code factoring i have created a separate method which is called from didSelectRow.. like this:

    -(void) checkDeviceAndHandleModelSizeForFlip:(FlipsideViewController *)flipVc orContact:(ContactsViewController *)contactVc orEvent:(EventViewController *)eventVc orImage:(ImageSettingViewController *)imageSettingVc
{  
    UIViewController *genericVC;  
    if (flipVc!=nil)  
    {  
        genericVC = flipVc;  
        flipVc.modalClosedProtocolDelegate = self;  
        flipVc.syncmlClient = self.syncmlClient; 

    }  
    else if (contactVc!=nil)  
    {
        genericVC = contactVc;  
        contactVc.modalClosedProtocolDelegate = self;  
        contactVc.syncmlClient = self.syncmlClient;  
        contactVc.mainViewController = self.mainViewController;  
    }  
    else if (eventVc!=nil)  
    {  
        genericVC = eventVc;  
        eventVc.modalClosedProtocolDelegate = self;  
        eventVc.syncmlClient = self.syncmlClient;  
        eventVc.mainViewController = self.mainViewController;  
    }  
    else if (imageSettingVc!=nil)  
    {
        genericVC = imageSettingVc;
        imageSettingVc.modalClosedProtocolDelegate = self;
        imageSettingVc.syncmlClient = self.syncmlClient;
        imageSettingVc.mainViewController = self.mainViewController;

    }

    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad)
    {
        genericVC.modalPresentationStyle = UIModalPresentationFormSheet;
        [self presentViewController:genericVC  animated:YES completion:nil];
        genericVC.view.superview.frame = CGRectInset(genericVC.view.superview.frame, 100, 50);
    }
    else
    {
        genericVC.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
        [self presentViewController:genericVC  animated:YES completion:nil]; //alok

    }
}

basically if you see there is lot of redudancy in code in if/else clause.It would be better from code management point of view if i had a single UIViewController object.

genericVC = contactVc;//vc object passed from didSelectrow it may be contact/event/image  
    genericVC.modalClosedProtocolDelegate = self;  
    genericVC.syncmlClient = self.syncmlClient;  
    genericVC.mainViewController = self.mainViewController;

can some one help me regarding this problem.
Thanks

score 1 · Answer 1 · answered Sep 27 '13 at 10:53

1

[self checkDeviceAndHandleModelSizeForFlip:self.flipVc];//Pass contactVc, eventVc, imageSettingVc like that,

-(void) checkDeviceAndHandleModelSizeForFlip:(ViewController *)viewController
{
    UIViewController *genericVC;
    if (viewController!=nil)
    {
        genericVC = viewController;
        viewController.modalClosedProtocolDelegate = self;
        viewController.syncmlClient = self.syncmlClient;
        viewController.mainViewController = self.mainViewController;

    }
}

answered Sep 27 '13 at 10:53

karthika

4,085
3
21
23

Thanks, thats what i have treid very first but got the error: Property 'modalClosedProtocolDelegate' not found on object of type 'UIViewController *' – maddy Sep 27 '13 at 10:59
or you pass as "id" type instead of viewcontroller. – karthika Sep 27 '13 at 11:00
Property 'modalClosedProtocolDelegate' not found on object of type '__strong id' – maddy Sep 27 '13 at 11:03
basically it could be done:if i take suppose myViewController:UIViewController.Now simple myViewController *genericVC; if (viewController!=nil) { genericVC = viewController; viewController.modalClosedProtocolDelegate = self; viewController.syncmlClient = self.syncmlClient; viewController.mainViewController = self.mainViewController; } – maddy Sep 27 '13 at 11:04
but that doesn't make sense to create an another UIViewController subclass just adopting protocol..there must be some other better way – maddy Sep 27 '13 at 11:06
Are you using like this, @property(nonatomic, assign) id delegate; @interface YourViewController : UIViewController – karthika Sep 27 '13 at 11:12
thanks for help you can see my comments on @gwiz answer below to find solution. – maddy Sep 27 '13 at 11:16

score 1 · Accepted Answer · answered Sep 27 '13 at 11:01

1

Just declare your genericVC like this:

UIViewController<ModalClosedProtocol, syncmlClient> *genericVC;

This way you let the compiler know that your genericVC View Controller conforms to the protocols ModalClosedProtocol and syncmlClient, so the methods you want to call are there.

answered Sep 27 '13 at 11:01

gWiz

1,274
9
12

you are right however the arguments passed should also declared same like you suggested otherwise you will get incompatible viewcontrooler erro – maddy Sep 27 '13 at 11:12
i just have to change method definitionlike this:-(void) checkDeviceAndHandleModelSizeForFlip:(FlipsideViewController *)flipVc orContact: – maddy Sep 27 '13 at 11:13
then simply: UIViewController *genericVC; if (viewController!=nil) { genericVC = viewController; viewController.modalClosedProtocolDelegate = self; viewController.syncmlClient = self.syncmlClient; viewController.mainViewController = self.mainViewController; } – maddy Sep 27 '13 at 11:14
You should change `-(void) checkDeviceAndHandleModelSizeForFlip:(FlipsideViewController *)flipVc orContact:(ContactsViewController *)contactVc orEvent:(EventViewController *)eventVc orImage:(ImageSettingViewController *)imageSettingVc` to `-(void) checkDeviceAndHandleModelSizeForGeneric:(UIViewController *)genericVc` and then add `` in every .h (Flip, Contact, etc) – gWiz Sep 27 '13 at 11:55
people like you are helping community to grow together, i have done already.thanks – maddy Sep 27 '13 at 12:08

call multiple view controller in didSelectrow uitableview

2 Answers2