Understanding iOS AdMob Integration and Managing Subviews

Introduction

When it comes to integrating AdMob into an iPhone app, developers often face challenges related to managing subviews. In this article, we’ll delve into the specifics of adding a Google AdMob banner as a subview in an AppDelegate and explore strategies for showing or hiding that subview on subsequent navigation pages.

Background

To begin with, let’s cover some essential concepts:

• Subviews: A subview is a view that belongs to another view. In the context of iOS development, subviews are used to create complex UI layouts.
• AdMob: Google AdMob is a mobile advertising platform that allows developers to easily integrate ads into their apps.
• AppDelegate: The AppDelegate class is the entry point for an iOS app’s application lifecycle.

Integrating AdMob into Your App

To start with integrating AdMob into your app, you’ll need to:

1. Create a Google AdMob account and obtain an ad unit ID (also known as an ad code).
2. Import the AdMob SDK into your project.
3. Load the ad in your view controller using the loadAd method.

Here’s some sample code to get you started:

#import <GoogleMobileAds/GoogleMobileAds.h>

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // Create an instance of GADBannerView
    self.adView = [[GADBannerView alloc] initWithadSize:kGADAdSizeSmartBannerVideo];
    self.adView.adUnitID = @"YOUR_AD_UNIT_ID";
    self.adView.rootViewController = self;
    [self.view addSubview:self.adView];
    
    // Load the ad
    [self.adView loadRequest:[GADRequest request]];
}

Replace "YOUR_AD_UNIT_ID" with your actual AdMob ad unit ID.

Adding the Ad to Your App Delegate

To add the AdMob banner as a subview in your AppDelegate, you can follow these steps:

1. Create an instance of GADBannerView and configure it according to your needs.
2. Add the GADBannerView instance to your view controller’s view.
3. Set up the ad unit ID and load the ad as shown in the sample code above.

Here’s some sample code to get you started:

#import <GoogleMobileAds/GoogleMobileAds.h>

@implementation AppDelegate

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // Create an instance of GADBannerView
    self.adView = [[GADBannerView alloc] initWithadSize:kGADAdSizeSmartBannerVideo];
    self.adView.adUnitID = @"YOUR_AD_UNIT_ID";
    self.adView.rootViewController = self;
    [self.view addSubview:self.adView];
    
    // Load the ad
    [self.adView loadRequest:[GADRequest request]];
}

- (void)dealloc {
    [self.adView removeFromSuperview];
}

Replace "YOUR_AD_UNIT_ID" with your actual AdMob ad unit ID.

Managing Subviews: Showing or Hiding the Ad

To show or hide the AdMob banner on subsequent navigation pages, you can use a variety of techniques:

1. Using a BOOL flag to toggle visibility

You can create a boolean flag (_isVisible) and set it based on your requirements. When the view controller loads, check this flag and decide whether to show or hide the ad.

Here’s some sample code:

#import <GoogleMobileAds/GoogleMobileAds.h>

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // Create an instance of GADBannerView
    self.adView = [[GADBannerView alloc] initWithadSize:kGADAdSizeSmartBannerVideo];
    self.adView.adUnitID = @"YOUR_AD_UNIT_ID";
    self.adView.rootViewController = self;
    [self.view addSubview:self.adView];
    
    // Set visibility flag
    _isVisible = YES;
}

- (void)viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];
    
    // Toggle visibility flag
    if (!_isVisible) {
        [self.adView removeFromSuperview];
    }
    
    // Set visibility flag for next time
    _isVisible = NO;
}

Replace "YOUR_AD_UNIT_ID" with your actual AdMob ad unit ID.

2. Using a separate method to remove the ad

You can create a separate method (hideAd) that removes the AdMob banner from view when called.

Here’s some sample code:

#import <GoogleMobileAds/GoogleMobileAds.h>

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // Create an instance of GADBannerView
    self.adView = [[GADBannerView alloc] initWithadSize:kGADAdSizeSmartBannerVideo];
    self.adView.adUnitID = @"YOUR_AD_UNIT_ID";
    self.adView.rootViewController = self;
    [self.view addSubview:self.adView];
    
    // Load the ad
    [self.adView loadRequest:[GADRequest request]];
}

- (void)hideAd {
    [self.adView removeFromSuperview];
}

Replace "YOUR_AD_UNIT_ID" with your actual AdMob ad unit ID.

3. Using a delegate to handle visibility changes

You can create a delegate (ViewControllerDelegate) that conforms to a protocol that handles visibility changes for the AdMob banner.

Here’s some sample code:

#import <GoogleMobileAds/GoogleMobileAds.h>

@protocol ViewControllerDelegate <NSObject>
- (void)adShouldBeHidden;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // Create an instance of GADBannerView
    self.adView = [[GADBannerView alloc] initWithadSize:kGADAdSizeSmartBannerVideo];
    self.adView.adUnitID = @"YOUR_AD_UNIT_ID";
    self.adView.rootViewController = self;
    [self.view addSubview:self.adView];
    
    // Load the ad
    [self.adView loadRequest:[GADRequest request]];
}

- (void)adShouldBeHidden {
    [self.adView removeFromSuperview];
}

Replace "YOUR_AD_UNIT_ID" with your actual AdMob ad unit ID.

Conclusion

Managing subviews, such as the AdMob banner, is a crucial aspect of iOS development. By using techniques like boolean flags, separate methods, or delegates, you can efficiently show or hide subviews based on your app’s requirements.

Last modified on 2024-01-23