e75143530f
If AppDetails is visible, then it'll automatically launch the install process, and there is no need to put up a "Tap to install" notification. And of course, whenever I search stackoverflow, I find an answer from @commonsguy :) https://stackoverflow.com/questions/18038399/how-to-check-if-activity-is-in-foreground-or-in-visible-background/18469643#18469643