在 iOS 中实现横幅广告

横幅广告需要特定类型的专用横幅广告单元。

您可以将横幅广告视图对象放入 View 层级视图中，就像放置任何其他视图一样。这样就可以自定义每个横幅广告实例的位置，或显示多个横幅广告。

脚本实现

脚本实现

将您的横幅广告代码添加到 ViewController 实现 (.m) 中。以下脚本示例是用于在屏幕上展示两个横幅广告的示例实现方案。如需了解引用的类的更多信息，请参阅 UADSBannerView API 部分。

实现 MREC 横幅广告格式

实现 MREC 横幅广告格式

要在应用中显示中等矩形 (MREC) 大小的广告格式，请确保使用适当的尺寸，例如 300x250, 300x300 或 450x450。如果使用的是 300x250 的 MREC 横幅广告，将它替换为以下示例代码：

CGSizeMake(320, 50)

调整后的尺寸：

CGSizeMake(300, 250)

示例代码

示例代码

@interface ViewController () <UADSBannerViewDelegate>
​
// This is the Ad Unit or Placement that will display banner ads:
@property (strong) NSString* placementId;
// This banner view object will be placed at the top of the screen:
@property (strong, nonatomic) UADSBannerView *topBannerView;
// This banner view object will be placed at the bottom of the screen:
@property (strong, nonatomic) UADSBannerView *bottomBannerView;
​
@end
​
@implementation ViewController
​
- (void)viewDidLoad {
    [super viewDidLoad];
    self.placementId = @"banner";
    [UnityAds initialize: @"1234567" testMode: YES initializationDelegate: self];
}
​
// Example method for creating and loading the top banner view object:
- (void)loadTopBanner{
    // Instantiate a banner view object with the Ad Unit ID and size:
    self.topBannerView = [[UADSBannerView alloc] initWithPlacementId: _placementId size: CGSizeMake(320, 50)];
    // Set the banner delegate for event callbacks:
    self.topBannerView.delegate = self;
    // Add the banner view object to the view hierarchy:
    [self addBannerViewToTopView:self.topBannerView];
    // Load ad content to the banner view object:
    [_topBannerView load];
}
​
// Example method for creating and loading the bottom banner view object:
- (void)loadBottomBanner{
    self.bottomBannerView = [[UADSBannerView alloc] initWithPlacementId: _placementId size: CGSizeMake(320, 50)];
    self.bottomBannerView.delegate = self;
    [self addBannerViewToBottomView:self.bottomBannerView];
    [_bottomBannerView load];
}
​
// Example method for discarding the top banner view object (for example, if there's no fill):
- (void)unLoadTopBanner{
    // Remove the banner view object from the view hierarchy:
    [self.topBannerView removeFromSuperview];
    // Set it to nil:
    _topBannerView = nil;
}
​
// Example method for discarding the bottom banner view object:
- (void)unLoadBottomBanner{
    [self.bottomBannerView removeFromSuperview];
    _bottomBannerView = nil;
}
​
​// Example method for placing the top banner view object:
- (void)addBannerViewToTopView:(UIView *)bannerView {
    bannerView.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:bannerView];
    [self.view addConstraints:@[
                               [NSLayoutConstraint constraintWithItem:bannerView
                                                            attribute:NSLayoutAttributeTop
                                                            relatedBy:NSLayoutRelationEqual
                                                               toItem:self.topLayoutGuide
                                                            attribute:NSLayoutAttributeBottom
                                                           multiplier:1
                                                             constant:0],
                               [NSLayoutConstraint constraintWithItem:bannerView
                                                            attribute:NSLayoutAttributeCenterX
                                                            relatedBy:NSLayoutRelationEqual
                                                               toItem:self.view
                                                            attribute:NSLayoutAttributeCenterX
                                                           multiplier:1
                                                             constant:0]
                               ]];
}
 
​// Example method for placing the bottom banner view object:
- (void)addBannerViewToBottomView: (UIView *)bannerView {
    bannerView.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:bannerView];
    [self.view addConstraints:@[
                               [NSLayoutConstraint constraintWithItem:bannerView
                                                            attribute:NSLayoutAttributeBottom
                                                            relatedBy:NSLayoutRelationEqual
                                                               toItem:self.bottomLayoutGuide
                                                            attribute:NSLayoutAttributeTop
                                                           multiplier:1
                                                             constant:0],
                               [NSLayoutConstraint constraintWithItem:bannerView
                                                            attribute:NSLayoutAttributeCenterX
                                                            relatedBy:NSLayoutRelationEqual
                                                               toItem:self.view
                                                            attribute:NSLayoutAttributeCenterX
                                                           multiplier:1
                                                             constant:0]
                               ]];
}
 
​// Implement the delegate methods:
#pragma mark : UADSBannerViewDelegate
 
- (void)bannerViewDidLoad:(UADSBannerView *)bannerView {
    // Called when the banner view object finishes loading an ad.
    NSLog(@"Banner loaded for Ad Unit or Placement: %@", bannerView.placementId);
}
 
- (void)bannerViewDidClick:(UADSBannerView *)bannerView {
    // Called when the banner is clicked.
    NSLog(@"Banner was clicked for Ad Unit or Placement: %@", bannerView.placementId);
}
 
- (void)bannerViewDidLeaveApplication:(UADSBannerView *)bannerView {
    // Called when the banner links out of the application.
}
 
 
- (void)bannerViewDidError:(UADSBannerView *)bannerView error:(UADSBannerError *)error{
    // Called when an error occurs showing the banner view object.
    NSLog(@"Banner encountered an error for Ad Unit or Placement: %@ with error message %@", bannerView.placementId, [error localizedDescription]);
    // Note that the UADSBannerError can indicate no fill (refer to the API documentation).
}
@end

后续步骤：查看变现策略指南并测试您的实现。