Android: Best way to let user access Preference activity?
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I have an app in the making, and have a Preferences activity which allows the user to choose settings for the app.

What I need help with is choosing how the preference activity will be accessed by the user. Some tutorials actually have a button in the main activity labeled, for example, "preferences" which would allow the user to visit that activity.

Others (the way I have it currently) just rely on the user clicking the menu button on their phone. I read that some phones do not have a menu button anymore, and the Android team is trying to get rid of a physical navigation button requirements.

So I am a little confused, what is the general consensus on this topic? Thank you.