在 Spritekit 中隐藏/显示 iAd [英] Hide/Show iAds in Spritekit
问题描述
我一直试图弄清楚如何在我的 Spritekit 场景中隐藏和显示 iAd.目前我有这样的设置:
I've been trying to figure out how to hide and show iAds in my Spritekit Scenes. Currently I have it setup like this:
ViewController.h
#import <UIKit/UIKit.h>
#import <SpriteKit/SpriteKit.h>
#import <iAd/iAD.h>
@interface ViewController : UIViewController <ADBannerViewDelegate> {
ADBannerView *adView;
}
-(void)showsBanner;
-(void)hidesBanner;
@end
ViewController.m
ViewController.m
#import "ViewController.h"
#import <UIKit/UIKit.h>
#import <iAd/iAD.h>
#import "MyScene.h"
#import <SpriteKit/SpriteKit.h>
@implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Configure the view.
SKView * skView = (SKView *)self.view;
skView.showsFPS = NO;
skView.showsNodeCount = NO;
// Create and configure the scene.
SKScene * scene = [MyScene sceneWithSize:skView.bounds.size];
scene.scaleMode = SKSceneScaleModeAspectFill;
// Present the scene.
[skView presentScene:scene];
self.canDisplayBannerAds = YES;
adView = [[ADBannerView alloc] initWithFrame:CGRectZero];
adView.frame = CGRectOffset(adView.frame, 0, 0.0f);
adView.delegate=self;
[self.view addSubview:adView];
self.bannerIsVisible=NO;
}
-(void)bannerViewDidLoadAd:(ADBannerView *)banner {
if (!self.bannerIsVisible) {
[UIView beginAnimations:@"animatedAdBannerOn" context:NULL];
banner.frame = CGRectOffset(banner.frame, 0.0, 0.0);
[UIView commitAnimations];
self.bannerIsVisible = YES;
}}
-(void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error {
if (!self.bannerIsVisible) {
[UIView beginAnimations:@"animatedAdBannerOff" context:NULL];
banner.frame = CGRectOffset(banner.frame, 0.0, 0.0);
[adView setAlpha:0];
[UIView commitAnimations];
self.bannerIsVisible = NO;
}
}
-(void)hidesBanner {
NSLog(@"HIDING BANNER");
[adView setAlpha:0];
self.bannerIsVisible = NO;
}
-(void)showsBanner {
NSLog(@"SHOWING BANNER");
[adView setAlpha:1];
self.bannerIsVisible = YES;
}
etc...
@end
然后在我的场景中,我用指针抓住我的视图控制器:
Then in my scene I grab my viewcontroller with a pointer:
ViewController *controller;
controller = [[ViewController alloc] init];
[controller hidesBanner];
我的 nslog 在控制台中运行,所以我知道它正在运行.但横幅不会隐藏.有什么想法吗?我对 Objective c 很陌生,所以我觉得我只是在做一些愚蠢的事情.
My nslog runs in the console so I know it's going through. But the banner won't hide. Any thoughts? I'm pretty new with objective c so I have a feeling I'm just doing something dumb.
推荐答案
就像 Huygamer 说的,你正在创建一个视图控制器的新实例,所以当你调用你的方法时 [controller hidesBanner];
你指的是另一个对象.
Like Huygamer said, you're creating a new instance of a view controller so when you call your method [controller hidesBanner];
you're referring to another object.
这里最好的方法是使用 NSNotificationCenter
:https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/nsnotificationcenter_Class/Reference/Reference.html
The best approach here is to use NSNotificationCenter
: https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/nsnotificationcenter_Class/Reference/Reference.html
并在您想要隐藏或显示广告时向您的视图控制器发送消息:
And send a message to your viewcontroller whenever you want to hide or show your ad:
ViewController.m
- (void)viewDidLoad
{
[super viewDidLoad];
//Add view controller as observer
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleNotification:) name:@"hideAd" object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleNotification:) name:@"showAd" object:nil];
// Configure the view.
SKView * skView = (SKView *)self.view;
skView.showsFPS = NO;
skView.showsNodeCount = NO;
// Create and configure the scene.
SKScene * scene = [MyScene sceneWithSize:skView.bounds.size];
scene.scaleMode = SKSceneScaleModeAspectFill;
// Present the scene.
[skView presentScene:scene];
self.canDisplayBannerAds = YES;
adView = [[ADBannerView alloc] initWithFrame:CGRectZero];
adView.frame = CGRectOffset(adView.frame, 0, 0.0f);
adView.delegate=self;
[self.view addSubview:adView];
self.bannerIsVisible=NO;
}
//Handle Notification
- (void)handleNotification:(NSNotification *)notification
{
if ([notification.name isEqualToString:@"hideAd"]) {
[self hidesBanner];
}else if ([notification.name isEqualToString:@"showAd"]) {
[self showBanner];
}
}
在你的场景中:
[[NSNotificationCenter defaultCenter] postNotificationName:@"showAd" object:nil]; //Sends message to viewcontroller to show ad.
[[NSNotificationCenter defaultCenter] postNotificationName:@"hideAd" object:nil]; //Sends message to viewcontroller to hide ad.
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