Hello Gourav,
Sorry for the delay in response. My name is Jackson from the IMA developer relations team.
The best way to use ResizablePlayer is to create your own custom class that implements both
VideoAdPlayer and
ResizablePlayer. Your custom player class will then have all the methods associated with the VideoAdPlayer making it compatible with IMA. It will also have the resize() method from ResizablePlayer.
If you have any other questions feel free to reply here.
Thank you,
Jackson
IMA SDK DevRel

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