TKRSegueOptions

TKRSegueOptions's new version SegueContext for Swift is here!

You can pass the objects to destination view controller with UIStoryboardSegue.

Do you have no complaints on the view controller transition now?

#import "NextViewController.h"
#import "ModalViewController.h"

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([@"Next" isEqualToString:segue.identifier]) {
        NextViewController *nextViewController = (NextViewController *)segue.destinationViewController;
        nextViewController.number = @1;
        [self.navigationController pushViewController:nextViewController animated:YES];
    } else if ([@"Modal" isEqualToString:segue.identifier]) {
        ModalViewController *modalViewController = (ModalViewController *)segue.destinationViewController;
        modalViewController.number = @2;
        [self.navigationController presentViewController:modalViewController animated:YES completion:nil];
    }
}

• You must import the view controller class of the transition destination...
• You must publish the public methods for pass the value...

TKRSegueOptions will solve these problems!

Simple Usage

All you need to pass the values when the timing of the view controller transition.

• import at pch

#import "TKRSegueOptions.h"

• Source View Controller

[self performSegueWithIdentifier:@"Modal" options:@888];

• Destination View Controller

self.label.text = self.segueOptions.stringValue; //< @"888"

Other Usages

pass the dictionary

// Source View Controller
NSDictionary *options = @{
    @"url": self.url,
    @"shop": self.shop,
};
[self performSegueWithIdentifier:@"Modal" options:options];

// Destination View Controller
NSURL *url = self.segueOptions[@"url"];

If you want to do in a format that was more tight

// Source View Controller
CustomSegueOption *option = [CustomSegueOption new];
option.number = @888;
option.string = @"hello";
[self performSegueWithIdentifier:@"Modal" options:option];

// Destination View Controller
CustomSegueOption *option = (CustomSegueOption *)presentedViewController.segueOptions;
NSLog(@"number: %@, string: %@", option.number, option.string);

If you can not use performSegue (For example Container View)

// Implement this method in source view controller
- (TKRSegueOptionSetting *)segueOptionSetting
{
    __weak typeof(self) wself = self;
    return [TKRSegueOptionSetting settingWithDictionary:@{
        @"Embed1": ^{
            return wself.leftLabel.text;
        },
        @"Embed2": ^{
            return wself.rightLabel.text;
        },
    }];
}

• key is UIStoryboard's identifier
• value is block that returns the you want to pass to the transition destination

If you want to use a Custom Segue

@implementation CustomSegue

- (void)perform
{
    UIViewController *sourceViewController = self.sourceViewController;
    UIViewController *viewController;
    viewController = [sourceViewController.storyboard instantiateViewControllerWithIdentifier:@"NextViewController"];

    // you can use `takeOverSegueOptionsFromViewController:`
    [viewController takeOverSegueOptionsFromViewController:self.destinationViewController];

    [self.sourceViewController presentViewController:viewController animated:YES completion:nil];
}
    
@end

Supplement

• If you implement prepareForSegue:sender:

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
  // You must call the super
  [super prepareForSegue:segue sender:sender];

  // Your codes ...
}

Swift Samples

• Source View Controller

self.performSegueWithIdentifier("Modal", options: ["title": "TITLE"])

• Destination View Controller

if let title = self.segueOptions?["title"] as? NSString {
  self.label.text = title //< "TITLE"
}

More information

• 日本語での紹介記事