如何将适用于 iOS 的 Admob 横幅放在底部中心？

Question

I am using this code to put the banner ads on bottom left.

CGPoint origin = CGPointMake(0.0,
                             self.view.frame.size.height -
                             CGSizeFromGADAdSize(kGADAdSizeBanner).height);
bannerView_ = [[GADBannerView alloc] initWithAdSize:kGADAdSizeBanner
                                             origin:origin];

How to position the banner at bottom center?

Answer 1

You just have to add it as a subview after initialization:

CGPoint origin = CGPointMake(0.0, self.view.frame.size.height - CGSizeFromGADAdSize(kGADAdSizeBanner).height);

bannerView_ = [[GADBannerView alloc] initWithAdSize:kGADAdSizeBanner
                                                         origin:origin];
bannerView_.center = CGPointMake(self.view.center.x, self.view.frame.size.height-CGSizeFromGADAdSize(kGADAdSizeBanner).height/2)
[self.view addSubview: bannerView_];

Answer 2

After some trial and error, this code helped me center banner ad to the bottom. The Google admob documentation helped as well.

func addBannerViewToView(_ bannerView: GADBannerView) {
     bannerView.translatesAutoresizingMaskIntoConstraints = false
     view.addSubview(bannerView)
     view.addConstraints(
        [NSLayoutConstraint(item: bannerView,
                            attribute: .bottom,
                            relatedBy: .equal,
                            toItem: view.safeAreaLayoutGuide,
                            attribute: .bottom,
                            multiplier: 1,
                            constant: 0),
        NSLayoutConstraint(item: bannerView,
        attribute: .centerX,
        relatedBy: .equal,
        toItem: view.safeAreaLayoutGuide,
        attribute: .centerX,
        multiplier: 1,
        constant: 0)]
        )

    }