There was a browser-streaming app that would play them remotely, can't remember what it was called.

There was an official plugin by Adobe on Android but it was awful, I remember watching them showcase it at a conference it was tragic even with their handpicked and simple example.

Then there was a transpiler that produced native apps from Flash, this was actually pretty good but Apple then banned transpiling which killed its viability entirely, six months later they un-banned transpiling but the damage was done.

But on the plus side, Apple got to monopolize transaction fees in Flash games like Farmville for nearly two decades!