Render a card - iOS

Here's how to render a card using the iOS SDK.

Create a card from a JSON string

AdaptiveCard is generated from JSON string

NSString *jsonStr = @"{ \"type\": \"AdaptiveCard\", \"version\": \"1.0\", \"body\": [ { \"type\": \"Image\", \"url\": \"http://adaptivecards.io/content/adaptive-card-50.png\", \"horizontalAlignment\":\"center\" }, { \"type\": \"TextBlock\", \"horizontalAlignment\":\"center\", \"text\": \"Hello **Adaptive Cards!**\" } ], \"actions\": [ { \"type\": \"Action.OpenUrl\", \"title\": \"Learn more\", \"url\": \"http://adaptivecards.io\" }, { \"type\": \"Action.OpenUrl\", \"title\": \"GitHub\", \"url\": \"http://github.com/Microsoft/AdaptiveCards\" } ] }";
ACOAdaptiveCardParseResult *cardParseResult = [ACOAdaptiveCard fromJson:jsonStr];

/// access for parse warnings and errors
NSArray<NSError *> *errors = cardParseResult.parseErrors;
NSArray<ACRParseWarning *> *warnings = cardParseResult.parseWarnings;

Render a Card

Renderer takes adaptive card and host config. HostConfig can be nil, and if nil, default value will be used. Returned UIView uses autolayout. Width will be constraint to the value set by widthConstraint. If 0 value is used, it won't be bound. Height is not bound, and when returned it will have the height of sums of all contents rendered. To bound the view dimension, please use NSLayoutConstraint. The exact dimension is accessible from the context of viewDidLayoutSubview of its superview's viewcontroller or its method with the same name if ACRViewController is used.

ACRRenderResult *renderResult = nil;
if(cardParseResult.isValid){
    renderResult = [ACRRenderer render:cardParseResult.card config:nil widthConstraint:335];
}

Example

--------------------------------------------------------------------------------
ViewController.m
--------------------------------------------------------------------------------
#import "ViewController.h"
#import <SafariServices/SafariServices.h>

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    NSString *jsonStr = @"{ \"type\": \"AdaptiveCard\", \"version\": \"1.0\", \"body\": [ { \"type\": \"Image\", \"url\": \"http://adaptivecards.io/content/adaptive-card-50.png\", \"horizontalAlignment\":\"center\" }, { \"type\": \"TextBlock\", \"horizontalAlignment\":\"center\", \"text\": \"Hello **Adaptive Cards!**\" } ], \"actions\": [ { \"type\": \"Action.OpenUrl\", \"title\": \"Learn more\", \"url\": \"http://adaptivecards.io\" }, { \"type\": \"Action.OpenUrl\", \"title\": \"GitHub\", \"url\": \"http://github.com/Microsoft/AdaptiveCards\" } ] }";
    ACRRenderResult *renderResult = nil;
    ACOAdaptiveCardParseResult *cardParseResult = [ACOAdaptiveCard fromJson:jsonStr];
    if(cardParseResult.isValid){
        renderResult = [ACRRenderer render:cardParseResult.card config:nil widthConstraint:335];
    }

    if(renderResult.succeeded)
    {
        ACRView *ad = renderResult.view;
        ad.acrActionDelegate = self;
        
        UIView *view = self.view;
        view.autoresizingMask |= UIViewAutoresizingFlexibleHeight;
        [self.view addSubview:ad];
        ad.translatesAutoresizingMaskIntoConstraints = NO;
        
        [NSLayoutConstraint constraintWithItem:ad attribute:NSLayoutAttributeCenterX relatedBy:NSLayoutRelationEqual toItem:view attribute:NSLayoutAttributeCenterX multiplier:1.0 constant:0].active = YES;

        [NSLayoutConstraint constraintWithItem:ad attribute:NSLayoutAttributeCenterY relatedBy:NSLayoutRelationEqual toItem:view attribute:NSLayoutAttributeCenterY multiplier:1.0 constant:3].active = YES;
    }
}

- (void)didFetchUserResponses:(ACOAdaptiveCard *)card action:(ACOBaseActionElement *)action
{
    if(action.type == ACROpenUrl){
        NSURL *url = [NSURL URLWithString:[action url]];
        SFSafariViewController *svc = [[SFSafariViewController alloc] initWithURL:url];
        [self presentViewController:svc animated:YES completion:nil];
    }
}

@end

--------------------------------------------------------------------------------
ViewController.swift
--------------------------------------------------------------------------------

import UIKit
import SafariServices

class ViewController: UIViewController, ACRActionDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        let jsonStr = "{ \"type\": \"AdaptiveCard\", \"version\": \"1.0\", \"body\": [ { \"type\": \"Image\", \"url\": \"http://adaptivecards.io/content/adaptive-card-50.png\", \"horizontalAlignment\":\"center\" }, { \"type\": \"TextBlock\", \"horizontalAlignment\":\"center\", \"text\": \"Hello **Adaptive Cards!**\" } ], \"actions\": [ { \"type\": \"Action.OpenUrl\", \"title\": \"Learn more\", \"url\": \"http://adaptivecards.io\" }, { \"type\": \"Action.OpenUrl\", \"title\": \"GitHub\", \"url\": \"http://github.com/Microsoft/AdaptiveCards\" } ] }";

        let cardParseResult = ACOAdaptiveCard.fromJson(jsonStr);
        if((cardParseResult?.isValid)!){
            let renderResult = ACRRenderer.render(cardParseResult!.card, config: nil, widthConstraint: 335);

            if(renderResult?.succeeded ?? false)
            {
                let ad = renderResult?.view;
                ad!.acrActionDelegate = (self as ACRActionDelegate);
                self.view.autoresizingMask = [.flexibleHeight];
                self.view.addSubview(ad!);
                ad!.translatesAutoresizingMaskIntoConstraints = false;
    
                NSLayoutConstraint(item: ad!, attribute: .centerX, relatedBy: .equal, toItem: view, attribute: .centerX, multiplier: 1.0, constant: 0).isActive = true;
                NSLayoutConstraint(item: ad!, attribute: .centerY, relatedBy: .equal, toItem: view, attribute: .centerY, multiplier: 1.0, constant: 3).isActive = true;
            }
        }
    }

    func didFetchUserResponses(_ card: ACOAdaptiveCard, action: ACOBaseActionElement)
    {
        if(action.type == ACRActionType.openUrl){
            let url = URL.init(string:action.url());
            let svc = SFSafariViewController.init(url: url!);
            self.present(svc, animated: true, completion: nil);
        }
    }

}