本指南介绍了一些最佳做法,有助于您了解如何通过编写应用代码来呈现广告。 可在 iPhone X 上正确设置。
前提条件
- 导入 Google 移动广告 SDK 7.26.0 或更高版本, 或 作为 Firebase 的一部分。
横幅广告
横幅广告必须放置在 “安全 区域” 以免被圆角、传感器外壳和主屏幕遮挡 指示器。本页将举例说明如何为广告添加限制条件 将横幅广告放置在安全区域的顶部或底部。
Storyboard/Interface Builder
如果您的应用使用 Interface Builder,请先确保您已启用“安全区域” 布局指南。为此,您需要运行 Xcode 9 及更高版本并以 iOS 9 及更高版本为目标。
打开 Interface Builder 文件,然后点击您的视图控制器场景。您 将看到右侧的 Interface Builder 文档选项。选中使用 安全区域布局指南,并确保构建适用于 iOS 9.0 及更高版本 最低
我们建议您使用宽度和 高度限制。
现在,您可以将横幅广告与安全区域的顶部对齐,只需限制 GADBannerView 的 Top 属性移至安全区域的顶部:
同样,您也可通过将横幅广告与安全区域的底部对齐: 将 GADBannerView 的 Bottom 属性限制在安全 领域:
现在,您的约束条件应类似于下面的屏幕截图。 (大小/位置可能会有所不同):
ViewController
这是一个简单的视图控制器代码段,执行
在 GADBannerView
中显示横幅广告(如上述 Storyboard 中所配置):
Swift
class ViewController: UIViewController { /// The banner view. @IBOutlet var bannerView: GADBannerView! override func viewDidLoad() { super.viewDidLoad() // Replace this ad unit ID with your own ad unit ID. bannerView.adUnitID = "ca-app-pub-3940256099942544/2934735716" bannerView.rootViewController = self bannerView.load(GADRequest()) } }
Objective-C
@interface ViewController() @property(nonatomic, strong) IBOutlet GADBannerView *bannerView; @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; // Replace this ad unit ID with your own ad unit ID. self.bannerView.adUnitID = @"ca-app-pub-3940256099942544/2934735716"; self.bannerView.rootViewController = self; GADRequest *request = [GADRequest request]; [self.bannerView loadRequest:request]; }
将横幅广告与安全区域边缘对齐
如果您希望横幅左对齐或右对齐,请限制 横幅的左侧/右侧边缘与安全区域左侧/右侧边缘之间的距离 而不是父视图的左侧/右侧边缘。
如果您已启用使用安全区域布局指南,则界面构建器会 为视图添加约束条件时,默认使用安全区域边缘。
程序化
如果您的应用以程序化方式制作横幅广告,您可以定义限制条件并 在代码中放置横幅广告的位置。此示例展示了如何将横幅广告 在安全区域底部水平居中:
Swift
class ViewController: UIViewController { var bannerView: GADBannerView! override func viewDidLoad() { super.viewDidLoad() // Instantiate the banner view with your desired banner size. bannerView = GADBannerView(adSize: GADAdSizeBanner) addBannerViewToView(bannerView) bannerView.rootViewController = self // Set the ad unit ID to your own ad unit ID here. bannerView.adUnitID = "ca-app-pub-3940256099942544/2934735716" bannerView.load(GADRequest()) } func addBannerViewToView(_ bannerView: UIView) { bannerView.translatesAutoresizingMaskIntoConstraints = false view.addSubview(bannerView) if #available(iOS 11.0, *) { positionBannerAtBottomOfSafeArea(bannerView) } else { positionBannerAtBottomOfView(bannerView) } } @available (iOS 11, *) func positionBannerAtBottomOfSafeArea(_ bannerView: UIView) { // Position the banner. Stick it to the bottom of the Safe Area. // Centered horizontally. let guide: UILayoutGuide = view.safeAreaLayoutGuide NSLayoutConstraint.activate( [bannerView.centerXAnchor.constraint(equalTo: guide.centerXAnchor), bannerView.bottomAnchor.constraint(equalTo: guide.bottomAnchor)] ) } func positionBannerAtBottomOfView(_ bannerView: UIView) { // Center the banner horizontally. view.addConstraint(NSLayoutConstraint(item: bannerView, attribute: .centerX, relatedBy: .equal, toItem: view, attribute: .centerX, multiplier: 1, constant: 0)) // Lock the banner to the top of the bottom layout guide. view.addConstraint(NSLayoutConstraint(item: bannerView, attribute: .bottom, relatedBy: .equal, toItem: self.bottomLayoutGuide, attribute: .top, multiplier: 1, constant: 0)) } }
Objective-C
@interface ViewController() @property(nonatomic, strong) GADBannerView *bannerView; @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; // Instantiate the banner view with your desired banner size. self.bannerView = [[GADBannerView alloc] initWithAdSize:GADAdSizeBanner]; [self addBannerViewToView:self.bannerView]; // Replace this ad unit ID with your own ad unit ID. self.bannerView.adUnitID = @"ca-app-pub-3940256099942544/2934735716"; self.bannerView.rootViewController = self; GADRequest *request = [GADRequest request]; [self.bannerView loadRequest:request]; } #pragma mark - view positioning -(void)addBannerViewToView:(UIView *_Nonnull)bannerView { self.bannerView.translatesAutoresizingMaskIntoConstraints = NO; [self.view addSubview:self.bannerView]; if (@available(ios 11.0, *)) { [self positionBannerViewAtBottomOfSafeArea:bannerView]; } else { [self positionBannerViewAtBottomOfView:bannerView]; } } - (void)positionBannerViewAtBottomOfSafeArea:(UIView *_Nonnull)bannerView NS_AVAILABLE_IOS(11.0) { // Position the banner. Stick it to the bottom of the Safe Area. // Centered horizontally. UILayoutGuide *guide = self.view.safeAreaLayoutGuide; [NSLayoutConstraint activateConstraints:@[ [bannerView.centerXAnchor constraintEqualToAnchor:guide.centerXAnchor], [bannerView.bottomAnchor constraintEqualToAnchor:guide.bottomAnchor] ]]; } - (void)positionBannerViewAtBottomOfView:(UIView *_Nonnull)bannerView { [self.view addConstraint:[NSLayoutConstraint constraintWithItem:bannerView attribute:NSLayoutAttributeCenterX relatedBy:NSLayoutRelationEqual toItem:self.view attribute:NSLayoutAttributeCenterX multiplier:1 constant:0]]; [self.view addConstraint:[NSLayoutConstraint constraintWithItem:bannerView attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:self.bottomLayoutGuide attribute:NSLayoutAttributeTop multiplier:1 constant:0]]; } @end
上述技术可以轻松用于限制在 通过修改所用的属性和锚点来调整该区域的边界。
智能横幅广告
如果您使用的是智能横幅广告,尤其是横向横幅广告,建议您 使用约束条件将横幅广告的边缘与 安全区域
在 Interface Builder 中,通过检查 使用安全区域布局指南选项 如上所述。
在代码中,您应设置相对于安全区域的边缘约束条件 布局指南(如果有)。下面这段代码可将横幅广告视图 附加到视图并约束到视图底部,即全宽:
Swift
func addBannerViewToView(_ bannerView: GADBannerView) { bannerView.translatesAutoresizingMaskIntoConstraints = false view.addSubview(bannerView) if #available(iOS 11.0, *) { // In iOS 11, we need to constrain the view to the safe area. positionBannerViewFullWidthAtBottomOfSafeArea(bannerView) } else { // In lower iOS versions, safe area is not available so we use // bottom layout guide and view edges. positionBannerViewFullWidthAtBottomOfView(bannerView) } } // MARK: - view positioning @available (iOS 11, *) func positionBannerViewFullWidthAtBottomOfSafeArea(_ bannerView: UIView) { // Position the banner. Stick it to the bottom of the Safe Area. // Make it constrained to the edges of the safe area. let guide = view.safeAreaLayoutGuide NSLayoutConstraint.activate([ guide.leftAnchor.constraint(equalTo: bannerView.leftAnchor), guide.rightAnchor.constraint(equalTo: bannerView.rightAnchor), guide.bottomAnchor.constraint(equalTo: bannerView.bottomAnchor) ]) } func positionBannerViewFullWidthAtBottomOfView(_ bannerView: UIView) { view.addConstraint(NSLayoutConstraint(item: bannerView, attribute: .leading, relatedBy: .equal, toItem: view, attribute: .leading, multiplier: 1, constant: 0)) view.addConstraint(NSLayoutConstraint(item: bannerView, attribute: .trailing, relatedBy: .equal, toItem: view, attribute: .trailing, multiplier: 1, constant: 0)) view.addConstraint(NSLayoutConstraint(item: bannerView, attribute: .bottom, relatedBy: .equal, toItem: bottomLayoutGuide, attribute: .top, multiplier: 1, constant: 0)) }
Objective-C
- (void)addBannerViewToView:(UIView *)bannerView { bannerView.translatesAutoresizingMaskIntoConstraints = NO; [self.view addSubview:bannerView]; if (@available(ios 11.0, *)) { // In iOS 11, we need to constrain the view to the safe area. [self positionBannerViewFullWidthAtBottomOfSafeArea:bannerView]; } else { // In lower iOS versions, safe area is not available so we use // bottom layout guide and view edges. [self positionBannerViewFullWidthAtBottomOfView:bannerView]; } } #pragma mark - view positioning - (void)positionBannerViewFullWidthAtBottomOfSafeArea:(UIView *_Nonnull)bannerView NS_AVAILABLE_IOS(11.0) { // Position the banner. Stick it to the bottom of the Safe Area. // Make it constrained to the edges of the safe area. UILayoutGuide *guide = self.view.safeAreaLayoutGuide; [NSLayoutConstraint activateConstraints:@[ [guide.leftAnchor constraintEqualToAnchor:bannerView.leftAnchor], [guide.rightAnchor constraintEqualToAnchor:bannerView.rightAnchor], [guide.bottomAnchor constraintEqualToAnchor:bannerView.bottomAnchor] ]]; } - (void)positionBannerViewFullWidthAtBottomOfView:(UIView *_Nonnull)bannerView { [self.view addConstraint:[NSLayoutConstraint constraintWithItem:bannerView attribute:NSLayoutAttributeLeading relatedBy:NSLayoutRelationEqual toItem:self.view attribute:NSLayoutAttributeLeading multiplier:1 constant:0]]; [self.view addConstraint:[NSLayoutConstraint constraintWithItem:bannerView attribute:NSLayoutAttributeTrailing relatedBy:NSLayoutRelationEqual toItem:self.view attribute:NSLayoutAttributeTrailing multiplier:1 constant:0]]; [self.view addConstraint:[NSLayoutConstraint constraintWithItem:bannerView attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:self.bottomLayoutGuide attribute:NSLayoutAttributeTop multiplier:1 constant:0]]; }
原生广告
如果您的应用将原生广告固定在屏幕的顶部或底部,
适用于原生广告的原则和适用于横幅广告的原则同样适用。
主要区别在于,您不必为 GADBannerView
添加约束条件,而是
需要向 GADUnifiedNativeAdView
(或包含视图)添加约束条件
),以遵守安全区域布局指南。对于原生视图
建议您提供更明确的尺寸限制值。
插页式广告和激励广告
从 7.26.0 版开始,Google 移动广告 SDK 完全支持插页式广告和 激励广告格式。