IMA Ads: listen to events

[rubenweerts]

Issue description

As a developer I want to be able to respond to certain events. The events of these interfaces are hidden when using the Ima-extension: AdErrorListener, AdsLoadedListener, AdEventListener
I'm currently unable to respond to these events:

ALL_ADS_COMPLETED,
FIRST_QUARTILE,
MIDPOINT,
SKIPPED,
TAPPED,
ICON_TAPPED,
THIRD_QUARTILE,
LOADED,
AD_PROGRESS

A solution would be to allow an external listener to receive these events aswel. i.e. ImaAdsLoader.addAdEventListener() and ImaAdsLoader.addAdErrorListener(), ect.
Or make an encapsulating listener that transfers all 3 listeners to external code.

Another quicker solution could be to not make the class final so I can add the functionality myself.

Reproduction steps

None, this is a feature request to open up the SDK

Link to test content

None needed

Version of ExoPlayer being used

r2.5.3

Device(s) and version(s) of Android being used

Any device, but for the sake to name one I'm using the Nexus 6p.

A full bug report captured from the device

See description

[andrewlewis]

I wonder if we should just provide a getter for the com.google.ads.interactivemedia.v3.api.AdsLoader field. Then you could add an additional AdErrorListener and AdsLoadedListener in your app, and in the AdsLoadedListener you could get the AdsManager and attach another AdEventListener. Does that sound like it would meet your requirements?

[rubenweerts]

Yes, that sounds good. Any solution that allows me to receive the original IMA SKD's events is fine 👍

[mitchellwit]

When can we expect this to be in release?

[ojw28]

It's in 2.6.0, for which there's current a dev branch. We're still finishing off a few bits and pieces to cherry-pick into it, and expect it to be pushed sometime next week (no promises though).