I have an Activity where I show a user a Dialog on the onCreate(), the
user is then allowed Click "OK" to dismiss the dialog, Click "RULES"
to read some rules, Click 'HIDE" to hide the dialog in the future.

The problem I'm having is when the user click view rules, which
launches the browser and then comes back to my activity, the dialog is
no longer visible.

I tried moving this  onWindowFocusChanged to detect when the app has
focus, but when the dialog is launched the app loses focus, so when
the user clicks OK the app regains focus and then reshows the dialog.

I've run into similar issues in the past, where a user leaves a
dialog, navigates back through the activity stack and I want to
something to happen on the previous activity, but onWindowFocusChanged
seems to always cause small issues like this.

Is there another method of executing code on the UI in an activity
when it's navigated back too using the "back" button?

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