Definire lo stile dei layout degli annunci con i modelli nativi

/// Step 1: Import the templates that you need.
#import "NativeTemplates/GADTSmallTemplateView.h"
#import "NativeTemplates/GADTTemplateView.h"
...

// STEP 2: Initialize your template view object.
GADTSmallTemplateView *templateView =
    [[NSBundle mainBundle] loadNibNamed:@"GADTSmallTemplateView" owner:nil options:nil]
      .firstObject;

// STEP 3: Template views are just GADNativeAdViews.
_nativeAdView = templateView;
nativeAd.delegate = self;

// STEP 4: Add your template as a subview of whichever view you'd like.
// This must be done before calling addHorizontalConstraintsToSuperviewWidth.
// Please note: Our template objects are subclasses of GADNativeAdView so
// you can insert them into whatever type of view you’d like, and don’t need to
// create your own.
[self.view addSubview:templateView];

// STEP 5 (Optional): Create your styles dictionary. Set your styles dictionary
// on the template property. A default dictionary is created for you if you do
// not set this. Note - templates do not currently respect style changes in the
// xib.

NSString *myBlueColor = @"#5C84F0";
NSDictionary *styles = @{
    GADTNativeTemplateStyleKeyCallToActionFont : [UIFont systemFontOfSize:15.0],
    GADTNativeTemplateStyleKeyCallToActionFontColor : UIColor.whiteColor,
    GADTNativeTemplateStyleKeyCallToActionBackgroundColor :
        [GADTTemplateView colorFromHexString:myBlueColor],
    GADTNativeTemplateStyleKeySecondaryFont : [UIFont systemFontOfSize:15.0],
    GADTNativeTemplateStyleKeySecondaryFontColor : UIColor.grayColor,
    GADTNativeTemplateStyleKeySecondaryBackgroundColor : UIColor.whiteColor,
    GADTNativeTemplateStyleKeyPrimaryFont : [UIFont systemFontOfSize:15.0],
    GADTNativeTemplateStyleKeyPrimaryFontColor : UIColor.blackColor,
    GADTNativeTemplateStyleKeyPrimaryBackgroundColor : UIColor.whiteColor,
    GADTNativeTemplateStyleKeyTertiaryFont : [UIFont systemFontOfSize:15.0],
    GADTNativeTemplateStyleKeyTertiaryFontColor : UIColor.grayColor,
    GADTNativeTemplateStyleKeyTertiaryBackgroundColor : UIColor.whiteColor,
    GADTNativeTemplateStyleKeyMainBackgroundColor : UIColor.whiteColor,
    GADTNativeTemplateStyleKeyCornerRadius : [NSNumber numberWithFloat:7.0],
};

templateView.styles = styles;

// STEP 6: Set the ad for your template to render.
templateView.nativeAd = nativeAd;

// STEP 7 (Optional): If you'd like your template view to span the width of your
// superview call this method.
[templateView addHorizontalConstraintsToSuperviewWidth];
[templateView addVerticalCenterConstraintToSuperview];

/// Call to action font. Expects a UIFont.
GADTNativeTemplateStyleKeyCallToActionFont

/// Call to action font color. Expects a UIColor.
GADTNativeTemplateStyleKeyCallToActionFontColor;

/// Call to action background color. Expects a UIColor.
GADTNativeTemplateStyleKeyCallToActionBackgroundColor;

/// The font, font color and background color for the first row of text in the
/// template.

/// All templates have a primary text area which is populated by the native ad's
/// headline.

/// Primary text font. Expects a UIFont.
GADTNativeTemplateStyleKeyPrimaryFont;

/// Primary text font color. Expects a UIFont.
GADTNativeTemplateStyleKeyPrimaryFontColor;

/// Primary text background color. Expects a UIColor.
GADTNativeTemplateStyleKeyPrimaryBackgroundColor;

/// The font, font color and background color for the second row of text in the
/// template.

/// All templates have a secondary text area which is populated either by the
/// body of the ad, or by the rating of the app.

/// Secondary text font. Expects a UIFont.
GADTNativeTemplateStyleKeySecondaryFont;

/// Secondary text font color. Expects a UIColor.
GADTNativeTemplateStyleKeySecondaryFontColor;

/// Secondary text background color. Expects a UIColor.
GADTNativeTemplateStyleKeySecondaryBackgroundColor;

/// The font, font color and background color for the third row of text in the
/// template. The third row is used to display store name or the default
/// tertiary text.

/// Tertiary text font. Expects a UIFont.
GADTNativeTemplateStyleKeyTertiaryFont;

/// Tertiary text font color. Expects a UIColor.
GADTNativeTemplateStyleKeyTertiaryFontColor;

/// Tertiary text background color. Expects a UIColor.
GADTNativeTemplateStyleKeyTertiaryBackgroundColor;

/// The background color for the bulk of the ad. Expects a UIColor.
GADTNativeTemplateStyleKeyMainBackgroundColor;

/// The corner rounding radius for the icon view and call to action. Expects an
/// NSNumber.
GADTNativeTemplateStyleKeyCornerRadius;