Admob banners disappear after Interstitial is loaded

totebo · July 2014

Title says it all. Here is the flow in more detail:

1. Admob "smart_banner" and Chartboost "interstitial" are loaded when app starts.
2. After a certain amount of sprites have been added to the stage the Admob banner is unloaded and trigger Event.AD_DISMISSED. If no sprites are added to the stage this doesn't happen.
3. Once the banner has been dismissed it cannot be shown again without first loading it again.

Notes:

- If no interstitial is loaded the banners work as expected
- If the banner load is delayed to after the interstitial has loaded it works as expected UNTIL the interstitial is shown and dismissed. After this happens it is again unloaded when a certain amount of sprites are added to the stage.
- If Admob test ads are used the banners work as expected

Has anyone seen this before? Could it be that, because the test ads work, this would work in production? Any thoughts on this would be great.

Cheers,

Niclas

ar2rsawseen · August 2014

@totebo I encountered some similar strange behavior once for one of the clients, and the problem was that Ads instance was defined as local variable and was garbage collected later on.

Could that be it?

totebo · August 2014

I didn't use local variables, but I stored the "currently active" network in one variable, and I think this caused conflicts. I have now rewritten the entire ad manager separating each ad network, and it works.

Tom2012 · September 2015

Hey Totebo,

Any chance you could share more of your code on this please?

I just found this thread through googling the exact same problem.

Loading an interstitual ad between banners causes the second banner to disappear.

Thanks!!

Tom2012 · September 2015

At the moment I'm using scene manager and have this code:

	self.banner = Ads.new("admob")
	self.banner:setKey("123/456")
	self.banner:loadAd("banner", "ca-app-pub-123/456")
	self.banner:enableTesting()
 
	self.banner:addEventListener(Event.AD_RECEIVED, function() 
		print("received banner ad")
	end)
 
	self.banner:addEventListener(Event.AD_FAILED, function(e) 
		print("ad failed",e.error)	
	end)

Sounds like I'm getting conflicts but I don't understand why. Thanks

totebo · September 2015

Hi Tom, could you send the code interstitial code too?

My guess is that you create a separate instance of Admob for banners and interstitials. Although this would make sense, it doesn't work. Instead you have to use only one instance of each ad network and check whether it's an interstitial or banner when an event is returned.

Tom2012 · September 2015

My guess is that you create a separate instance of Admob for banners and interstitials. Although this would make sense, it doesn't work. Instead you have to use only one instance of each ad network and check whether it's an interstitial or banner when an event is returned.

That solved it. How did I miss that

Thanks very much Totebo! Working fine now. Making more than one instance of adMob causes weird bugs.

totebo · September 2015

Nice one!

simwhi · September 2015

@totebo I'm in the process of rewriting my ad manager too. I will bear this in mind. Do you have any more tips?

I did come across an issue when showing Applovin banners. The ad refresh would sometimes show a new ad and blank the rest of the screen. The app was running underneath though. I decided to remove Applovin banners as it was only a temporary fix until we get our Admob account issues resolved!!

totebo · September 2015

I haven't seen that issue with Applovin (or other networks) I'm afraid.

I've since restructured how I serve ads a few times, and I'm now running a system where I have each network as a separate class, so I can easily load one and when that fails fall back on another network. Another benefit is that I can change the order in which the ad networks load easily, to maximise profit.

Tom2012 · September 2015

For anyone in the future, here's the code I've used to get Admob working. I'd imagine it would work for other networks too.

I'm using scene manager...

in main.lua:

-- Setup Ads
 
-- setup admob
 
admob = Ads.new("admob")
admob:enableTesting()
 
admob:addEventListener(Event.AD_RECEIVED, function(e) 
	if(adType=="interstitial") then
		adReceived = true
	end
end)
 
admob:addEventListener(Event.AD_FAILED, function(e) 
	print("ad failed",e.error)
	adReceived = nil
end)
 
function changeScene()
 
	print("changeScene function called")
	print("ad type", adType)
 
	if(adType=="interstitial") then
 
		sceneManager:changeScene(nextScene, 0, SceneManager.flipWithFade, easing.outBack)
 
	end
 
end
 
admob:addEventListener(Event.AD_ACTION_END, changeScene, stage)
admob:addEventListener(Event.AD_ACTION_END, changeScene, stage)
admob:addEventListener(Event.AD_DISMISSED, changeScene, stage)

Code to show interstitial ad, placed on the scene

	-- setup ad
 
	adType = "interstitial"
	nextScene = nil
	adReceived = nil
	-- setup ad
 
	admob:setKey("12345/6789")
	admob:loadAd("interstitial", "ca-app-pub-12345/6789")
admob:showAd("interstitial")

On the scene where a banner is required:

	adType = "banner"
	admob:setKey("22334455/66778899")
	admob:loadAd("banner", "ca-app-pub-22334455/66778899")
	admob:showAd("banner")

To hide ads it's

	admob:hideAd("banner")
or
	admob:hideAd("interstitial")

Manually setting a global variable of adType = "interstitial" for example, before each ad is shown, helps keep track of which ad is showing. This is useful because any functions you set up with Event.AD_RECEIVED will fire whether a banner or an interstitial is shown.

In my case, I didn't want to change scene after a banner is shown.

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Admob banners disappear after Interstitial is loaded

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