我正在使用MoPub横幅广告，我将以下代码添加到我的View Controller的viewDidLoad中：
self.adView.delegate = self
self.adView.frame = CGRectMake(0, self.view.bounds.size.height - MOPUB_BANNER_SIZE.height,
MOPUB_BANNER_SIZE.width, MOPUB_BANNER_SIZE.height)
self.view.addSubview(self.adView)
self.adView.loadAd()
但是当我只希望它在主菜单场景中可见时，它会使广告在所有场景中都可见。
如何在我不想要的场景中删除广告？
答案 0 :(得分：2)
这可能不是最好的方法，但它可能是最简单的方法。只要您希望展示或隐藏横幅，就可以使用NSNotification向ViewController广播消息。
例如，如果你添加一个＆＃34;观察者＆＃34;在ViewController init或viewDidLoad上的NSNotificationCenter.defaultCenter().addObserver(
self,
selector: "hideBannerAd",
name: "hideAd",
object: nil)
：
ViewController让"hideAd"侦听名为hideBannerAd的邮件，然后执行名为func hideBannerAd(){
self.adView.hidden = true
}
的方法。
然后实现这个方法：
deinit请务必删除ViewController上的观察者，SpriteKit deinit{
NSNotificationCenter.defaultCenter().removeObserver(self)
}
的{{1}}的持续存在可能是个问题，但这不是问题。良好的做法。
hideBannerAd然后，当您想要显示或隐藏视图时，例如在场景转换或游戏方法上，您可以通过使用以下方法触发观察者来实现此NSNotificationCenter.defaultCenter().postNotificationName("hideAd", object: nil)
方法：
showBannerAd横幅应隐藏。然后，可以通过将hidden属性设置为false来为类似的adView.hidden = !adView.hidden方法重复此操作，或者您可以使用单个方法使用function setPlayingVideoToTrue(){playing_video = true;}
function setPlayingVideoToFalse(){playing_video = false;}
// check if a video iframe exists
var iframe_videos = $('body').find('iframe');
if(iframe_videos.length > 0){
// create ready events for every iframe
iframe_videos.each(function(index){
// add a temporary id for the iframe
// append additional parameters to the end of the iframe's src
var temporary_player_id = 'iframe_player_'+ index;
var new_iframe_src = $(this).attr('src') +'?api=1&player_id='+ temporary_player_id;
$(this).attr('id', temporary_player_id);
$(this).attr('src', new_iframe_src);
// add event listener for ready
$f(this).addEvent('ready', iframe_ready);
});
// when a player is ready, add event listeners for play, pause, finish, and playProgress
function iframe_ready(player_id) {
$f(player_id).addEvent('play', setPlayingVideoToTrue);
$f(player_id).addEvent('playProgress', setPlayingVideoToTrue);
$f(player_id).addEvent('pause', setPlayingVideoToFalse);
$f(player_id).addEvent('finish', setPlayingVideoToFalse);
}
}
function start_idle_timer(){
var timer = 0;
function increment_duration()
{
if(isPaused === false)
{
timer++;
}
// increment timer if video is playing
if(playing_video === true){
clearTimeout(idleTimer);
isPaused = false;
}
if(playing_video === false && isPaused === false){
// stop timer if the user is idle for 3 minutes
var idleTimer = setTimeout(function(){
// console.log('idle');
clearInterval(check_time);
isPaused = true;
// a modal will apper to inform that user is on idle state
$('#linkage').trigger('click');
var modal_timer = 0;
// timer for modal idle timer
continue_modal_timer = setInterval(function(){
modal_timer++;
inactivity_timer = modal_timer;
if(modal_timer == 60)
{
clearInterval(continue_modal_timer);
clearTimeout(idleTimer);
}
}, 1000)
}, 10000);
}
// bind to all elements on DOM possible events indicating the user is active
$('*').bind('mousemove click mouseup mousedown keydown keypress keyup submit change mouseenter scroll resize dblclick', function () {
clearTimeout(idleTimer);
isPaused = false;
});
}
// initialize the interval
check_time = setInterval(increment_duration, 1000);
}
// check if start_timer is present from the loading page to record the time duration of the user
if($('.start_timer').length > 0){
start_idle_timer();
}
简单地切换隐藏属性。
我希望这会有所帮助。