gistfile1.m

// App Delegate:

BOOL delayTaplyticsLoad = (![EAAppState sharedInstance].currentlySignedIn || ![EAAppState sharedInstance].walkthroughDisplayed);

NSDictionary *options;
if (delayTaplyticsLoad) {
    options = @{@"delayLoad": @7};
}

[Taplytics startTaplyticsAPIKey:[EAAppState sharedInstance].appSettings.taplyticsAPIKey
                        options:options];

[Taplytics getRunningExperimentsAndVariations:^(NSDictionary *experimentsAndVariations) {
    [EAAppState sharedInstance].userTaplyticsExperiments = [experimentsAndVariations copy];
}];

[self launchAppropriateViewController];




// Where the test is run

#define EA_AB_TEST_RETURN_BLOCK(val) if (returnBlock) { returnBlock(val); } return;

+ (void)feedStoryPrintExperimentEnabled:(EAABTestManagerReturnBlockBool)returnBlock {

    BOOL defaultValue = NO;
    
    [Taplytics runCodeExperiment:@"Print photo button on feed stories" withBaseline:^(NSDictionary *variables) {
        EA_AB_TEST_RETURN_BLOCK(defaultValue);
    } variations:@{@"Print button visible": ^(NSDictionary *variables) {
        EA_AB_TEST_RETURN_BLOCK(YES);
    }}];
}



// Where the test is invoked

- (id)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
        
        _memorableShareButton = [EAButton sharePhotoButton];
        [_memorableShareButton addTarget:self action:@selector(didPressShareButton:) forControlEvents:UIControlEventTouchUpInside];
        
        _memorablePrintButton = [EAButton printPhotoButton];
        _memorablePrintButton.hidden = YES;
        [_memorablePrintButton addTarget:self action:@selector(didPressPrintButton:) forControlEvents:UIControlEventTouchUpInside];

        [EAABTestManager feedStoryPrintExperimentEnabled:^(BOOL value) {
            self.printExperimentEnabled = value;
            self.memorablePrintButton.hidden = !value;
            if (value) {
                [self.contentView addSubview:_memorablePrintButton];
            }
            [self.contentView addSubview:_memorableShareButton];
            [self setNeedsLayout];
        }];
        
        _annotationLabel = [[UILabel alloc] initWithFrame:CGRectZero];
        _annotationLabel.clipsToBounds = YES;
        _annotationLabel.backgroundColor = EA_STORY_COLLECTION_VIEW_CONSTANTS_ANNOTATION_BG_COLOR;
        _annotationLabel.textColor = [UIColor whiteColor];
        _annotationLabel.textAlignment = NSTextAlignmentCenter;
        _annotationLabel.font = [UIFont smallestMediumFont];
        _annotationLabel.numberOfLines = 0;
        
        self.layer.cornerRadius = EA_STORY_COLLECTION_VIEW_CONSTANTS_CORNER_RADIUS;
        self.layer.borderWidth = EA_STORY_COLLECTION_VIEW_CONSTANTS_STORY_BORDER_WIDTH;
        self.layer.borderColor = EA_STORY_COLLECTION_VIEW_CONSTANTS_STORY_BORDER_COLOR.CGColor;
        self.backgroundColor = [UIColor gray00];
        
        self.imageView.showSyncIndicator = NO;
        self.imageView.autoPlay = YES;
        self.imageView.loop = YES;
        self.imageView.showPlayPauseFlipbookButton = YES;
        self.imageView.showFlipbookProgressBar = YES;
    }
    return self;
}

- (void)layoutSubviews {
    [super layoutSubviews];

    CGRect fullSizeButtonFrame = CGRectIntegral(CGRectMake(0,
                                                           self.frame.size.height - EA_MEMORABLE_SHARE_BAR_HEIGHT,
                                                           self.frame.size.width,
                                                           EA_MEMORABLE_SHARE_BAR_HEIGHT));

    _memorableShareButton.frame = fullSizeButtonFrame;
    _memorablePrintButton.frame = fullSizeButtonFrame;
    
    // If we're showing both buttons, cut width in half.
    if (self.printExperimentEnabled &&
        !_memorableShareButton.hidden && !_memorablePrintButton.hidden) {
        
        CGRect buttonFrame = fullSizeButtonFrame;
        buttonFrame.size.width = buttonFrame.size.width / 2;
        
        _memorablePrintButton.frame = buttonFrame;
        [_memorablePrintButton addRightBorderWithColor:[UIColor gray02] andWidth:.5f];
        
        buttonFrame.origin.x += buttonFrame.size.width;
        _memorableShareButton.frame = buttonFrame;
    }
}